Company lists · Data refreshed November 2026
Top 25 Wastewater system engineers worldwide
RevenueBase identified 6,701 company matches for wastewater system engineers worldwide as of November 2026 and tracks 190,338 professional contacts across them, including 60,406 with verified work emails. The United States is the largest market and Tehran the largest hub.
This list covers company matches for wastewater system engineers worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for wastewater system engineers follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest wastewater system engineers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 23,115 contacts → | ||||
Exact match “We provide essential services in the water and waste sectors to preserve resources and improve quality of life wherever we operate.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 14,232 contacts → | ||||
Exact match “Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 8,143 contacts → | ||||
Exact match “CDM Smith is shaping what’s next, now, with world class solutions in water, environment, transportation and energy to public and private clients worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 4,010 contacts → | ||||
Exact match “At Ion Exchange India, we bring you total environment solutions - water treatment, liquid waste treatment & recycle, air pollution control, solid & hazardous waste management and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 2,673 contacts → | ||||
Exact match “RESEAUX ET INFRASTRUCTURES Entreprise plus que centenaire forte de quelque 7 collaborateurs, la SADE est le spécialiste de la conception, la construction, la réhabilitation et…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 2,635 contacts → | ||||
Exact match “WABAG, a global leader in the water industry, is backed by rich experience spanning over 100 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 2,553 contacts → | ||||
Exact match “Headquartered in Walnut Creek, Calif, Brown and Caldwell is an employee-owned firm with 2,100+ professionals serving clients locally and globally from 52 locations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 2,306 contacts → | ||||
Exact match “As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 1,837 contacts → | ||||
Exact match “For more than 90 years, Carollo Engineers has been dedicated exclusively to water and wastewater solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 1,780 contacts → | ||||
Exact match “CHA Consulting, Inc.(CHA) is an innovative, full-service engineering, design, consulting, and program/construction management firm providing a wide range of technology-enhanced…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 1,588 contacts → | ||||
Exact match “Freese and Nichols is a professional planning, consulting and engineering firm serving clients across the United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 1,559 contacts → | ||||
Exact match “Weston Solutions, Inc.(Weston) is a 100% employee-owned environmental and infrastructure services firm committed to safety and providing measurable client value.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 1,491 contacts → | ||||
Exact match “Ulteig delivers comprehensive design engineering, program management and technical and field services that strengthen infrastructure vital to everyday life.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 1,235 contacts → | ||||
Exact match “Volvo Eicher Commerical Vehical Limited Service Provider of waste water recycling systems, drinking water plant & industrial water treatment in Indore, Madhya Pradesh.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 1,107 contacts → | ||||
Exact match “As an Azuria owned company, Inframark is a widely recognized leader in Water Infrastructure Operations and Infrastructure Management Services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 1,098 contacts → | ||||
Exact match “Woodard & Curran is more than just a consulting firm – we are an employee-owned integrated science, engineering, design-build, and operations company specializing in water and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 971 contacts → | ||||
Exact match “MWH Treatment is a leading Design and Build non-infrastructure solution provider in the UK water sector, with a water sector heritage dating back to 1820.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 867 contacts → | ||||
Exact match “Holding Company for Water and Waste Water is a Civil Engineering company located in Cairo Governorate, Egypt.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 857 contacts → | ||||
Exact match “Ovivo is a powerful global brand, uniting world-renowned trademarks and a highly specialized team of 700 water treatment experts operating across the globe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 824 contacts → | ||||
Exact match “Antea Group est une société internationale d’ingénierie et de conseil en environnement.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 800 contacts → | ||||
Exact match “This page is now closed.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 731 contacts → | ||||
Exact match “Since its establishment, Ward & Burke has sought to develop and adopt the ideals and aspirations to civil engineering construction and currently delivers class leading, reliable…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 660 contacts → | ||||
Exact match “A world leader in water treatment solutions, IDE specializes in the development, engineering, construction and operation of enhanced desalination and industrial water treatment…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 637 contacts → | ||||
Exact match “Neel-Schaffer is a multi-disciplined engineering, planning and construction management firm that was founded in 1983 and today is one of the largest private, employee-owned…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 593 contacts → | ||||
Exact match “For over 100 years, Kennedy Jenks has provided engineering and scientific solutions for innovative water and environmental projects.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “wastewater system engineers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 6,701 wastewater system engineers worldwide
See the full list, filter by size, metro and specialty, and access 60,406 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Wastewater system engineers worldwide at a glance
As of Nov 6, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for wastewater system engineers are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “wastewater system engineers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 60,406 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Wastewater system engineers by location
36 lists · largest firstEvery Wastewater system engineers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Wastewater system engineers based in the United States1,295
- Wastewater system engineers based in India698
- Wastewater system engineers based in Germany320
- Wastewater system engineers based in Brazil288
- Wastewater system engineers based in Italy248
- Wastewater system engineers based in the United Kingdom212
- Wastewater system engineers based in Canada205
- Wastewater system engineers based in Türkiye174
- Wastewater system engineers based in Australia166
- Wastewater system engineers based in France146
- Wastewater system engineers based in Spain131
- Wastewater system engineers based in Colombia95
- Wastewater system engineers based in South Africa87
- Wastewater system engineers based in Malaysia85
- Wastewater system engineers based in Mexico81
- Wastewater system engineers based in the Netherlands78
- Wastewater system engineers based in Chile74
- Wastewater system engineers based in Indonesia71
- Wastewater system engineers based in Poland69
- Wastewater system engineers based in the United Arab Emirates63
- Wastewater system engineers based in Czechia43
- Wastewater system engineers based in Austria41
- Wastewater system engineers based in Saudi Arabia40
- Wastewater system engineers based in Sweden40
- Wastewater system engineers based in Switzerland39
- Wastewater system engineers based in Portugal35
- Wastewater system engineers based in Belgium33
- Wastewater system engineers based in New Zealand33
- Wastewater system engineers based in Israel26
Cities
- Wastewater system engineers based in Pune, India69
- Wastewater system engineers based in Ahmedabad, India52
- Wastewater system engineers based in Chennai, India48
- Wastewater system engineers based in Sao Paulo, Brazil45
- Wastewater system engineers based in Houston, United States37
- Wastewater system engineers based in Mumbai, India31
- Wastewater system engineers based in Dubai, United Arab Emirates26
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “wastewater system engineers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many wastewater system engineers are there worldwide?
RevenueBase identified 6,701 company matches for wastewater system engineers worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
SUEZ tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most wastewater system engineers?
The United States leads with 1,295 companies, followed by India (698) and Germany (320). Every wastewater system engineers list by country and city is linked on this page.
Which city has the most wastewater system engineers?
Tehran leads with 72 company records, followed by Pune (69) and Ahmedabad (52).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 60,406 professional contacts with verified work emails tracked across these 6,701 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 6,701 wastewater system engineers worldwide. Start with a free account, no credit card.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
Company intelligence · public preview
Top 25 wastewater system engineers worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 6,701 matching company records for wastewater system engineers worldwide, with 190,338 tracked contacts and 60,406 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 wastewater system engineers worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  SUEZsuez.comHQ: Paris, FranceReported employees: 10001+ | Paris, France | 10001+ | Exact match | 23,115 contacts → |
“We provide essential services in the water and waste sectors to preserve resources and improve quality of life wherever we operate.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Tetra Techtetratech.comHQ: Pasadena, CA, United StatesReported employees: 10001+ | Pasadena, CA, United States | 10001+ | Exact match | 14,232 contacts → |
“Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  CDM Smithcdmsmith.comHQ: Boston, MA, United StatesReported employees: 5,001-10,000 | Boston, MA, United States | 5,001-10,000 | Exact match | 8,143 contacts → |
“CDM Smith is shaping what’s next, now, with world class solutions in water, environment, transportation and energy to public and private clients worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  ION Exchange India LTDionexchangeglobal.comHQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 4,010 contacts → |
“At Ion Exchange India, we bring you total environment solutions - water treatment, liquid waste treatment & recycle, air pollution control, solid & hazardous waste management and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  SADEsade-cgth.frHQ: 75685 Paris Cedex 14, FranceReported employees: 5,001-10,000 | 75685 Paris Cedex 14, France | 5,001-10,000 | Exact match | 2,673 contacts → |
“RESEAUX ET INFRASTRUCTURES Entreprise plus que centenaire forte de quelque 7 collaborateurs, la SADE est le spécialiste de la conception, la construction, la réhabilitation et…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  VA Tech Wabag LTDwabag.comHQ: Wabag House, IndiaReported employees: 1,001-5,000 | Wabag House, India | 1,001-5,000 | Exact match | 2,635 contacts → |
“WABAG, a global leader in the water industry, is backed by rich experience spanning over 100 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Brown And Caldwellbrownandcaldwell.comHQ: Walnut Creek, CA, United StatesReported employees: 1,001-5,000 | Walnut Creek, CA, United States | 1,001-5,000 | Exact match | 2,553 contacts → |
“Headquartered in Walnut Creek, Calif, Brown and Caldwell is an employee-owned firm with 2,100+ professionals serving clients locally and globally from 52 locations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Hazen And Sawyerhazenandsawyer.comHQ: New York, CO, United StatesReported employees: 1,001-5,000 | New York, CO, United States | 1,001-5,000 | Exact match | 2,306 contacts → |
“As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Carollo Engineerscarollo.comHQ: Walnut Creek, NV, United StatesReported employees: 1,001-5,000 | Walnut Creek, NV, United States | 1,001-5,000 | Exact match | 1,837 contacts → |
“For more than 90 years, Carollo Engineers has been dedicated exclusively to water and wastewater solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  CHA Consulting, INCchasolutions.comHQ: Albany, NH, United StatesReported employees: 1,001-5,000 | Albany, NH, United States | 1,001-5,000 | Exact match | 1,780 contacts → |
“CHA Consulting, Inc.(CHA) is an innovative, full-service engineering, design, consulting, and program/construction management firm providing a wide range of technology-enhanced…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Freese And Nicholsfreese.comHQ: Fort Worth, TX, United StatesReported employees: 1,001-5,000 | Fort Worth, TX, United States | 1,001-5,000 | Exact match | 1,588 contacts → |
“Freese and Nichols is a professional planning, consulting and engineering firm serving clients across the United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Weston Solutions, INCwestonsolutions.comHQ: West Chester, PA, United StatesReported employees: 1,001-5,000 | West Chester, PA, United States | 1,001-5,000 | Exact match | 1,559 contacts → |
“Weston Solutions, Inc.(Weston) is a 100% employee-owned environmental and infrastructure services firm committed to safety and providing measurable client value.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Ulteigulteig.comHQ: Fargo, IA, United StatesReported employees: 1,001-5,000 | Fargo, IA, United States | 1,001-5,000 | Exact match | 1,491 contacts → |
“Ulteig delivers comprehensive design engineering, program management and technical and field services that strengthen infrastructure vital to everyday life.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Volvo Eicher Commerical Vehical Limitedindiamart.comHQ: Dhar, IndiaReported employees: Not recorded | Dhar, India | Not recorded | Exact match | 1,235 contacts → |
“Volvo Eicher Commerical Vehical Limited Service Provider of waste water recycling systems, drinking water plant & industrial water treatment in Indore, Madhya Pradesh.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Inframarkinframark.comHQ: Horsham, PA, United StatesReported employees: 1,001-5,000 | Horsham, PA, United States | 1,001-5,000 | Exact match | 1,107 contacts → |
“As an Azuria owned company, Inframark is a widely recognized leader in Water Infrastructure Operations and Infrastructure Management Services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Woodard & Curranwoodardcurran.comHQ: Portland, ME, United StatesReported employees: 1,001-5,000 | Portland, ME, United States | 1,001-5,000 | Exact match | 1,098 contacts → |
“Woodard & Curran is more than just a consulting firm – we are an employee-owned integrated science, engineering, design-build, and operations company specializing in water and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  MWH Treatmentmwhtreatment.comHQ: Stockport, United KingdomReported employees: 1,001-5,000 | Stockport, United Kingdom | 1,001-5,000 | Exact match | 971 contacts → |
“MWH Treatment is a leading Design and Build non-infrastructure solution provider in the UK water sector, with a water sector heritage dating back to 1820.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | HQ: Cairo, EgyptReported employees: 1,001-5,000 | Cairo, Egypt | 1,001-5,000 | Exact match | 867 contacts → |
“Holding Company for Water and Waste Water is a Civil Engineering company located in Cairo Governorate, Egypt.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  OVIVOovivowater.comHQ: Montreal, QC, CanadaReported employees: 501-1,000 | Montreal, QC, Canada | 501-1,000 | Exact match | 857 contacts → |
“Ovivo is a powerful global brand, uniting world-renowned trademarks and a highly specialized team of 700 water treatment experts operating across the globe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Antea Group - Franceanteagroup.frHQ: Olivet, FranceReported employees: 1,001-5,000 | Olivet, France | 1,001-5,000 | Exact match | 824 contacts → |
“Antea Group est une société internationale d’ingénierie et de conseil en environnement.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Hatch Mott Macdonaldhatchmott.comHQ: Iselin, NJ, United StatesReported employees: 1,001-5,000 | Iselin, NJ, United States | 1,001-5,000 | Exact match | 800 contacts → |
“This page is now closed.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Ward And Burkewardandburke.comHQ: Kilcolgan, TX, IrelandReported employees: 1,001-5,000 | Kilcolgan, TX, Ireland | 1,001-5,000 | Exact match | 731 contacts → |
“Since its establishment, Ward & Burke has sought to develop and adopt the ideals and aspirations to civil engineering construction and currently delivers class leading, reliable…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  IDE Technologieside-tech.comHQ: Kadima, IsraelReported employees: 501-1,000 | Kadima, Israel | 501-1,000 | Exact match | 660 contacts → |
“A world leader in water treatment solutions, IDE specializes in the development, engineering, construction and operation of enhanced desalination and industrial water treatment…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Neel-Schaffer, INCneel-schaffer.comHQ: Jackson, MS, United StatesReported employees: 501-1,000 | Jackson, MS, United States | 501-1,000 | Exact match | 637 contacts → |
“Neel-Schaffer is a multi-disciplined engineering, planning and construction management firm that was founded in 1983 and today is one of the largest private, employee-owned…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Kennedy Jenkskennedyjenks.comHQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 593 contacts → |
“For over 100 years, Kennedy Jenks has provided engineering and scientific solutions for innovative water and environmental projects.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 6,701 company matches
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Wastewater system engineers: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
6,609 records in the displayed employee bands.
92 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 6,701 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Wastewater system engineers by location
36 lists · largest firstEvery Wastewater system engineers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Wastewater system engineers based in the United States1,295
- Wastewater system engineers based in India698
- Wastewater system engineers based in Germany320
- Wastewater system engineers based in Brazil288
- Wastewater system engineers based in Italy248
- Wastewater system engineers based in the United Kingdom212
- Wastewater system engineers based in Canada205
- Wastewater system engineers based in Türkiye174
- Wastewater system engineers based in Australia166
- Wastewater system engineers based in France146
- Wastewater system engineers based in Spain131
- Wastewater system engineers based in Colombia95
- Wastewater system engineers based in South Africa87
- Wastewater system engineers based in Malaysia85
- Wastewater system engineers based in Mexico81
- Wastewater system engineers based in the Netherlands78
- Wastewater system engineers based in Chile74
- Wastewater system engineers based in Indonesia71
- Wastewater system engineers based in Poland69
- Wastewater system engineers based in the United Arab Emirates63
- Wastewater system engineers based in Czechia43
- Wastewater system engineers based in Austria41
- Wastewater system engineers based in Saudi Arabia40
- Wastewater system engineers based in Sweden40
- Wastewater system engineers based in Switzerland39
- Wastewater system engineers based in Portugal35
- Wastewater system engineers based in Belgium33
- Wastewater system engineers based in New Zealand33
- Wastewater system engineers based in Israel26
Cities
- Wastewater system engineers based in Pune, India69
- Wastewater system engineers based in Ahmedabad, India52
- Wastewater system engineers based in Chennai, India48
- Wastewater system engineers based in Sao Paulo, Brazil45
- Wastewater system engineers based in Houston, United States37
- Wastewater system engineers based in Mumbai, India31
- Wastewater system engineers based in Dubai, United Arab Emirates26
Questions about this company list
What does Exact match mean for wastewater system engineers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many wastewater system engineers did RevenueBase find worldwide?
The saved snapshot records 6,701 matching company records, 190,338 tracked contacts and 60,406 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 wastewater system engineers worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/wastewater-system-engineers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 wastewater system engineers worldwide
RevenueBase records 6,701 matching company records for wastewater system engineers worldwide, with 190,338 tracked contacts and 60,406 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 wastewater system engineers worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | SUEZsuez.com HQ: Paris, FranceReported employees: 10001+ | Paris, France | 10001+ | Exact match | 23,115 contacts → |
“We provide essential services in the water and waste sectors to preserve resources and improve quality of life wherever we operate.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Tetra Techtetratech.com HQ: Pasadena, CA, United StatesReported employees: 10001+ | Pasadena, CA, United States | 10001+ | Exact match | 14,232 contacts → |
“Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | CDM Smithcdmsmith.com HQ: Boston, MA, United StatesReported employees: 5,001-10,000 | Boston, MA, United States | 5,001-10,000 | Exact match | 8,143 contacts → |
“CDM Smith is shaping what’s next, now, with world class solutions in water, environment, transportation and energy to public and private clients worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | ION Exchange India LTDionexchangeglobal.com HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 4,010 contacts → |
“At Ion Exchange India, we bring you total environment solutions - water treatment, liquid waste treatment & recycle, air pollution control, solid & hazardous waste management and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | SADEsade-cgth.fr HQ: 75685 Paris Cedex 14, FranceReported employees: 5,001-10,000 | 75685 Paris Cedex 14, France | 5,001-10,000 | Exact match | 2,673 contacts → |
“RESEAUX ET INFRASTRUCTURES Entreprise plus que centenaire forte de quelque 7 collaborateurs, la SADE est le spécialiste de la conception, la construction, la réhabilitation et…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | VA Tech Wabag LTDwabag.com HQ: Wabag House, IndiaReported employees: 1,001-5,000 | Wabag House, India | 1,001-5,000 | Exact match | 2,635 contacts → |
“WABAG, a global leader in the water industry, is backed by rich experience spanning over 100 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Brown And Caldwellbrownandcaldwell.com HQ: Walnut Creek, CA, United StatesReported employees: 1,001-5,000 | Walnut Creek, CA, United States | 1,001-5,000 | Exact match | 2,553 contacts → |
“Headquartered in Walnut Creek, Calif, Brown and Caldwell is an employee-owned firm with 2,100+ professionals serving clients locally and globally from 52 locations.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Hazen And Sawyerhazenandsawyer.com HQ: New York, CO, United StatesReported employees: 1,001-5,000 | New York, CO, United States | 1,001-5,000 | Exact match | 2,306 contacts → |
“As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Carollo Engineerscarollo.com HQ: Walnut Creek, NV, United StatesReported employees: 1,001-5,000 | Walnut Creek, NV, United States | 1,001-5,000 | Exact match | 1,837 contacts → |
“For more than 90 years, Carollo Engineers has been dedicated exclusively to water and wastewater solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | CHA Consulting, INCchasolutions.com HQ: Albany, NH, United StatesReported employees: 1,001-5,000 | Albany, NH, United States | 1,001-5,000 | Exact match | 1,780 contacts → |
“CHA Consulting, Inc.(CHA) is an innovative, full-service engineering, design, consulting, and program/construction management firm providing a wide range of technology-enhanced…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Freese And Nicholsfreese.com HQ: Fort Worth, TX, United StatesReported employees: 1,001-5,000 | Fort Worth, TX, United States | 1,001-5,000 | Exact match | 1,588 contacts → |
“Freese and Nichols is a professional planning, consulting and engineering firm serving clients across the United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Weston Solutions, INCwestonsolutions.com HQ: West Chester, PA, United StatesReported employees: 1,001-5,000 | West Chester, PA, United States | 1,001-5,000 | Exact match | 1,559 contacts → |
“Weston Solutions, Inc.(Weston) is a 100% employee-owned environmental and infrastructure services firm committed to safety and providing measurable client value.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Ulteigulteig.com HQ: Fargo, IA, United StatesReported employees: 1,001-5,000 | Fargo, IA, United States | 1,001-5,000 | Exact match | 1,491 contacts → |
“Ulteig delivers comprehensive design engineering, program management and technical and field services that strengthen infrastructure vital to everyday life.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Volvo Eicher Commerical Vehical Limitedindiamart.com HQ: Dhar, IndiaReported employees: Not recorded | Dhar, India | Not recorded | Exact match | 1,235 contacts → |
“Volvo Eicher Commerical Vehical Limited Service Provider of waste water recycling systems, drinking water plant & industrial water treatment in Indore, Madhya Pradesh.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Inframarkinframark.com HQ: Horsham, PA, United StatesReported employees: 1,001-5,000 | Horsham, PA, United States | 1,001-5,000 | Exact match | 1,107 contacts → |
“As an Azuria owned company, Inframark is a widely recognized leader in Water Infrastructure Operations and Infrastructure Management Services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Woodard & Curranwoodardcurran.com HQ: Portland, ME, United StatesReported employees: 1,001-5,000 | Portland, ME, United States | 1,001-5,000 | Exact match | 1,098 contacts → |
“Woodard & Curran is more than just a consulting firm – we are an employee-owned integrated science, engineering, design-build, and operations company specializing in water and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | MWH Treatmentmwhtreatment.com HQ: Stockport, United KingdomReported employees: 1,001-5,000 | Stockport, United Kingdom | 1,001-5,000 | Exact match | 971 contacts → |
“MWH Treatment is a leading Design and Build non-infrastructure solution provider in the UK water sector, with a water sector heritage dating back to 1820.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | HQ: Cairo, EgyptReported employees: 1,001-5,000 | Cairo, Egypt | 1,001-5,000 | Exact match | 867 contacts → |
“Holding Company for Water and Waste Water is a Civil Engineering company located in Cairo Governorate, Egypt.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | OVIVOovivowater.com HQ: Montreal, QC, CanadaReported employees: 501-1,000 | Montreal, QC, Canada | 501-1,000 | Exact match | 857 contacts → |
“Ovivo is a powerful global brand, uniting world-renowned trademarks and a highly specialized team of 700 water treatment experts operating across the globe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Antea Group - Franceanteagroup.fr HQ: Olivet, FranceReported employees: 1,001-5,000 | Olivet, France | 1,001-5,000 | Exact match | 824 contacts → |
“Antea Group est une société internationale d’ingénierie et de conseil en environnement.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Hatch Mott Macdonaldhatchmott.com HQ: Iselin, NJ, United StatesReported employees: 1,001-5,000 | Iselin, NJ, United States | 1,001-5,000 | Exact match | 800 contacts → |
“This page is now closed.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Ward And Burkewardandburke.com HQ: Kilcolgan, TX, IrelandReported employees: 1,001-5,000 | Kilcolgan, TX, Ireland | 1,001-5,000 | Exact match | 731 contacts → |
“Since its establishment, Ward & Burke has sought to develop and adopt the ideals and aspirations to civil engineering construction and currently delivers class leading, reliable…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | IDE Technologieside-tech.com HQ: Kadima, IsraelReported employees: 501-1,000 | Kadima, Israel | 501-1,000 | Exact match | 660 contacts → |
“A world leader in water treatment solutions, IDE specializes in the development, engineering, construction and operation of enhanced desalination and industrial water treatment…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Neel-Schaffer, INCneel-schaffer.com HQ: Jackson, MS, United StatesReported employees: 501-1,000 | Jackson, MS, United States | 501-1,000 | Exact match | 637 contacts → |
“Neel-Schaffer is a multi-disciplined engineering, planning and construction management firm that was founded in 1983 and today is one of the largest private, employee-owned…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Kennedy Jenkskennedyjenks.com HQ: San Francisco, CA, United StatesReported employees: 201-500 | San Francisco, CA, United States | 201-500 | Exact match | 593 contacts → |
“For over 100 years, Kennedy Jenks has provided engineering and scientific solutions for innovative water and environmental projects.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 6,701 company matches
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Wastewater system engineers: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
6,609 records in the displayed employee bands.
92 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 6,701 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Wastewater system engineers by location
36 lists · largest firstEvery Wastewater system engineers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Wastewater system engineers based in the United States1,295
- Wastewater system engineers based in India698
- Wastewater system engineers based in Germany320
- Wastewater system engineers based in Brazil288
- Wastewater system engineers based in Italy248
- Wastewater system engineers based in the United Kingdom212
- Wastewater system engineers based in Canada205
- Wastewater system engineers based in Türkiye174
- Wastewater system engineers based in Australia166
- Wastewater system engineers based in France146
- Wastewater system engineers based in Spain131
- Wastewater system engineers based in Colombia95
- Wastewater system engineers based in South Africa87
- Wastewater system engineers based in Malaysia85
- Wastewater system engineers based in Mexico81
- Wastewater system engineers based in the Netherlands78
- Wastewater system engineers based in Chile74
- Wastewater system engineers based in Indonesia71
- Wastewater system engineers based in Poland69
- Wastewater system engineers based in the United Arab Emirates63
- Wastewater system engineers based in Czechia43
- Wastewater system engineers based in Austria41
- Wastewater system engineers based in Saudi Arabia40
- Wastewater system engineers based in Sweden40
- Wastewater system engineers based in Switzerland39
- Wastewater system engineers based in Portugal35
- Wastewater system engineers based in Belgium33
- Wastewater system engineers based in New Zealand33
- Wastewater system engineers based in Israel26
Cities
- Wastewater system engineers based in Pune, India69
- Wastewater system engineers based in Ahmedabad, India52
- Wastewater system engineers based in Chennai, India48
- Wastewater system engineers based in Sao Paulo, Brazil45
- Wastewater system engineers based in Houston, United States37
- Wastewater system engineers based in Mumbai, India31
- Wastewater system engineers based in Dubai, United Arab Emirates26
Questions about this company list
What does Exact match mean for wastewater system engineers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many wastewater system engineers did RevenueBase find worldwide?
The saved snapshot records 6,701 matching company records, 190,338 tracked contacts and 60,406 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 wastewater system engineers worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/wastewater-system-engineers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗