Company lists · Data refreshed September 2026
Top 25 Wastewater system design engineers worldwide
RevenueBase identified 750 company matches for wastewater system design engineers worldwide as of September 2026 and tracks 9,894 professional contacts across them, including 4,179 with verified work emails. The United States is the largest market and Tehran the largest hub.
This list covers company matches for wastewater system design 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 September 22, 2026. Country and city lists for wastewater system design 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 design engineers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,718 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 · Sep 22, 2026 · View company records in RevenueBase | |||||
| 2 | 879 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 · Sep 22, 2026 · View company records in RevenueBase | |||||
| 3 | 632 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 · Sep 22, 2026 · View company records in RevenueBase | |||||
| 4 | 323 contacts → | ||||
Exact match “Since 2009, Enviro has combined engineering excellence with a commitment to sustainability in water and wastewater solutions across India." Enviro Infra Engineers Limited stands…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 5 | 315 contacts → | ||||
Exact match “Tata & Howard is a 100% employee owned, award-winning, specialized consulting engineering firm dedicated to providing superior client service coupled with delivering…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 6 | 191 contacts → | ||||
Exact match “HNB ENGINEERS PVT.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 7 | 147 contacts → | ||||
Exact match “At Atlan Stormwater, we draw on more than 45 years’ experience in the design, testing and manufacture of water treatment systems that are utilised in over 45 countries.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 8 | 137 contacts → | ||||
Exact match “Severn Trent Services offer a range of services to municipal and industrial clients, including the Ministry of Defence and the Coal Authority, for design, build and operation of…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 9 | 136 contacts → | ||||
Exact match “RH2 is an innovative, full-service engineering firm specializing in water and wastewater related projects.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 10 | 135 contacts → | ||||
Exact match “Water Works Engineers is a leading civil and environmental engineering firm specializing in innovative and sustainable solutions for water infrastructure projects across the…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 11 | 112 contacts → | ||||
Exact match “Over the past 45 years, GSE Construction has completed more than projects as a general engineering contractor.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 12 | 101 contacts → | ||||
Exact match “Today, Jones & Henry Engineers, Ltd, continues to provide high quality consulting services in water, wastewater, storm water, and civil engineering to municipalities and…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 13 | 94 contacts → | ||||
Exact match “CMP Consulting Group is a multi-disciplinary Engineering firm specialising in design, project management and construction phase services for the Water Industry.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 14 | 91 contacts → | ||||
Exact match “STA aiuta le Società di Gestione del Servizio Idrico e le Piccole, Medie e Grandi Industrie a progettare, costruire e gestire impianti di trattamento delle acque reflue, primarie…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 15 | 79 contacts → | ||||
Exact match “The objective of A&S is to provide municipal engineering services, with focus on water districts, municipalities, and land development.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 16 | 78 contacts → | ||||
Exact match “Water: It’s a human thing.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 17 | 72 contacts → | ||||
Exact match “A Rotária do Brasil é uma empresa de Engenharia especializada em projetos, implantação e operação de sistemas de tratamento de efluentes/esgotos e água potável.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 18 | 57 contacts → | ||||
Exact match “At Right Group, our experienced team has collectively propelled us to the forefront as the leading provider of Electrical and Mechanical Engineering solutions in the water and…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 19 | 56 contacts → | ||||
Exact match “Tritech is an industry leader in integrated design, project management, and construction services for water and wastewater infrastructure projects.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 20 | 54 contacts → | ||||
Exact match “AQUA Engineering (AQUA) is a civil engineering firm specializing in municipal engineering, water resources, water and wastewater treatment design, and environmental services.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 21 | 50 contacts → | ||||
Exact match “ACO Grupo Iberia now offers, together with ACO Remosa-a family-run company with a long-standing presence in the market and now part of the ACO Group-systems and services to…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 22 | 49 contacts → | ||||
Exact match “The position I hold is a one person GIS department.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 23 | 47 contacts → | ||||
Exact match “NCS is an experienced water and wastewater engineering consulting firm with offices in Arizona, Maryland, Nevada, New Mexico and California.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 24 | 40 contacts → | ||||
Exact match “For over 90 years Bosman Watermanagement has been recognized for it's expertise in water management; including wind watermills, small pumping units, large capacity pumping…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 25 | 37 contacts → | ||||
Exact match “Empresa especialista en tratamiento de aguas residuales y sistemas de potabilización de agua.” Recorded in the RevenueBase company graph · Sep 22, 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 design 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 750 wastewater system design engineers worldwide
See the full list, filter by size, metro and specialty, and access 4,179 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Wastewater system design engineers worldwide at a glance
As of Sep 22, 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 design engineers are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “wastewater system design 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 4,179 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 September 22, 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 design engineers by location
3 lists · largest firstEvery Wastewater system design engineers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 design engineers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many wastewater system design engineers are there worldwide?
RevenueBase identified 750 company matches for wastewater system design engineers worldwide as of September 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?
Carollo Engineers tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most wastewater system design engineers?
The United States leads with 186 companies, followed by Germany (35) and the United Kingdom (29). Every wastewater system design engineers list by country and city is linked on this page.
Which city has the most wastewater system design engineers?
Tehran leads with 19 company records, followed by Houston (6) and Pune (6).
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 4,179 professional contacts with verified work emails tracked across these 750 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 September 22, 2026.
Ready to reach these companies? Verified emails and direct dials for all 750 wastewater system design 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 design 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 750 matching company records for wastewater system design engineers worldwide, with 9,894 tracked contacts and 4,179 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: September 22, 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 design 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 |  Carollo Engineerscarollo.comHQ: Walnut Creek, CA, United StatesReported employees: 1,001-5,000 | Walnut Creek, CA, United States | 1,001-5,000 | Exact match | 1,718 contacts → |
“For more than 90 years, Carollo Engineers has been dedicated exclusively to water and wastewater solutions.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | MWH Treatmentmwhtreatment.com HQ: Stockport, United KingdomReported employees: 1,001-5,000 | Stockport, United Kingdom | 1,001-5,000 | Exact match | 879 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 · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Ward And Burkewardandburke.comHQ: Kilcolgan, IrelandReported employees: 1,001-5,000 | Kilcolgan, Ireland | 1,001-5,000 | Exact match | 632 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 · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Enviro Infra Engineers LTDeiel.in HQ: Delhi, IndiaReported employees: 501-1,000 | Delhi, India | 501-1,000 | Exact match | 323 contacts → |
“Since 2009, Enviro has combined engineering excellence with a commitment to sustainability in water and wastewater solutions across India." Enviro Infra Engineers Limited stands…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Tata & Howard, INCtataandhoward.comHQ: Marlborough, MA, United StatesReported employees: 51-200 | Marlborough, MA, United States | 51-200 | Exact match | 315 contacts → |
“Tata & Howard is a 100% employee owned, award-winning, specialized consulting engineering firm dedicated to providing superior client service coupled with delivering…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | HNB Engineers Pvt. LTDhnbc.in HQ: Pune, IndiaReported employees: 201-500 | Pune, India | 201-500 | Exact match | 191 contacts → |
“HNB ENGINEERS PVT.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Atlan Stormwateratlanstormwater.comHQ: Sydney Olympic Park, AustraliaReported employees: 201-500 | Sydney Olympic Park, Australia | 201-500 | Exact match | 147 contacts → |
“At Atlan Stormwater, we draw on more than 45 years’ experience in the design, testing and manufacture of water treatment systems that are utilised in over 45 countries.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Severn Trent Servicesstservices.co.ukHQ: Coventry, United KingdomReported employees: 1,001-5,000 | Coventry, United Kingdom | 1,001-5,000 | Exact match | 137 contacts → |
“Severn Trent Services offer a range of services to municipal and industrial clients, including the Ministry of Defence and the Coal Authority, for design, build and operation of…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Rh2 Engineeringrh2.com HQ: Bothell, WA, United StatesReported employees: 51-200 | Bothell, WA, United States | 51-200 | Exact match | 136 contacts → |
“RH2 is an innovative, full-service engineering firm specializing in water and wastewater related projects.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Water Works Engineerswaterworksengineers.comHQ: Scottsdale, AZ, United StatesReported employees: 51-200 | Scottsdale, AZ, United States | 51-200 | Exact match | 135 contacts → |
“Water Works Engineers is a leading civil and environmental engineering firm specializing in innovative and sustainable solutions for water infrastructure projects across the…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | GSE Construction Company, INCgseconstruction.com HQ: Livermore, CA, United StatesReported employees: 201-500 | Livermore, CA, United States | 201-500 | Exact match | 112 contacts → |
“Over the past 45 years, GSE Construction has completed more than projects as a general engineering contractor.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Jones & Henry Engineersjheng.com HQ: Toledo, OH, United StatesReported employees: 51-200 | Toledo, OH, United States | 51-200 | Exact match | 101 contacts → |
“Today, Jones & Henry Engineers, Ltd, continues to provide high quality consulting services in water, wastewater, storm water, and civil engineering to municipalities and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  CMP Consulting Groupcmpgroup.com.auHQ: Mulgrave, AustraliaReported employees: 51-200 | Mulgrave, Australia | 51-200 | Exact match | 94 contacts → |
“CMP Consulting Group is a multi-disciplinary Engineering firm specialising in design, project management and construction phase services for the Water Industry.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  S.T.A. Società Trattamento Acque SPAstacque.comHQ: Mantova, ItalyReported employees: 51-200 | Mantova, Italy | 51-200 | Exact match | 91 contacts → |
“STA aiuta le Società di Gestione del Servizio Idrico e le Piccole, Medie e Grandi Industrie a progettare, costruire e gestire impianti di trattamento delle acque reflue, primarie…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  A&s Engineers, INCas-engineers.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 79 contacts → |
“The objective of A&S is to provide municipal engineering services, with focus on water districts, municipalities, and land development.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | LEE ROlee-ro.com HQ: City Of Industry, CA, United StatesReported employees: 51-200 | City Of Industry, CA, United States | 51-200 | Exact match | 78 contacts → |
“Water: It’s a human thing.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Rotária DO Brasilbrasil.rotaria.netHQ: Florianópolis, BrazilReported employees: 51-200 | Florianópolis, Brazil | 51-200 | Exact match | 72 contacts → |
“A Rotária do Brasil é uma empresa de Engenharia especializada em projetos, implantação e operação de sistemas de tratamento de efluentes/esgotos e água potável.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Right Grouprightgroup.ieHQ: Castleisland, IrelandReported employees: 51-200 | Castleisland, Ireland | 51-200 | Exact match | 57 contacts → |
“At Right Group, our experienced team has collectively propelled us to the forefront as the leading provider of Electrical and Mechanical Engineering solutions in the water and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Tritech Group LTDtritechgroup.caHQ: Langley, BC, CanadaReported employees: 51-200 | Langley, BC, Canada | 51-200 | Exact match | 56 contacts → |
“Tritech is an industry leader in integrated design, project management, and construction services for water and wastewater infrastructure projects.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Aqua Engineeringaquaeng.com HQ: Bountiful, UT, United StatesReported employees: 51-200 | Bountiful, UT, United States | 51-200 | Exact match | 54 contacts → |
“AQUA Engineering (AQUA) is a civil engineering firm specializing in municipal engineering, water resources, water and wastewater treatment design, and environmental services.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  ACO Iberiaaco.esHQ: Maçanet De La Selva, SpainReported employees: 51-200 | Maçanet De La Selva, Spain | 51-200 | Exact match | 50 contacts → |
“ACO Grupo Iberia now offers, together with ACO Remosa-a family-run company with a long-standing presence in the market and now part of the ACO Group-systems and services to…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Clark Regional Wastewater Districtcrwwd.com HQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 49 contacts → |
“The position I hold is a one person GIS department.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  NCS Engineersncseng.comHQ: Phoenix, AZ, United StatesReported employees: 51-200 | Phoenix, AZ, United States | 51-200 | Exact match | 47 contacts → |
“NCS is an experienced water and wastewater engineering consulting firm with offices in Arizona, Maryland, Nevada, New Mexico and California.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Bosman Watermanagement B.Vbosmanwater.nlHQ: Piershil, NetherlandsReported employees: 51-200 | Piershil, Netherlands | 51-200 | Exact match | 40 contacts → |
“For over 90 years Bosman Watermanagement has been recognized for it's expertise in water management; including wind watermills, small pumping units, large capacity pumping…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  CBR Ingenieríacbr-ingenieria.com.mxHQ: Valle De Santiago, MexicoReported employees: 11-50 | Valle De Santiago, Mexico | 11-50 | Exact match | 37 contacts → |
“Empresa especialista en tratamiento de aguas residuales y sistemas de potabilización de agua.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 750 company matches
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Wastewater system design engineers: dataset insights
September 22, 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
744 records in the displayed employee bands.
6 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 750 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: September 22, 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 design engineers by location
3 lists · largest firstEvery Wastewater system design engineers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for wastewater system design 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 design engineers did RevenueBase find worldwide?
The saved snapshot records 750 matching company records, 9,894 tracked contacts and 4,179 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: September 22, 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.
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Browse the directory
Cite this list
RevenueBase Data Team. Top 25 wastewater system design engineers worldwide. Snapshot: September 22, 2026. https://revenuebase.ai/companies/browse/wastewater-system-design-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 design engineers worldwide
RevenueBase records 750 matching company records for wastewater system design engineers worldwide, with 9,894 tracked contacts and 4,179 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: September 22, 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 design 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 | Carollo Engineerscarollo.com HQ: Walnut Creek, CA, United StatesReported employees: 1,001-5,000 | Walnut Creek, CA, United States | 1,001-5,000 | Exact match | 1,718 contacts → |
“For more than 90 years, Carollo Engineers has been dedicated exclusively to water and wastewater solutions.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | MWH Treatmentmwhtreatment.com HQ: Stockport, United KingdomReported employees: 1,001-5,000 | Stockport, United Kingdom | 1,001-5,000 | Exact match | 879 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 · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Ward And Burkewardandburke.com HQ: Kilcolgan, IrelandReported employees: 1,001-5,000 | Kilcolgan, Ireland | 1,001-5,000 | Exact match | 632 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 · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Enviro Infra Engineers LTDeiel.in HQ: Delhi, IndiaReported employees: 501-1,000 | Delhi, India | 501-1,000 | Exact match | 323 contacts → |
“Since 2009, Enviro has combined engineering excellence with a commitment to sustainability in water and wastewater solutions across India." Enviro Infra Engineers Limited stands…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Tata & Howard, INCtataandhoward.com HQ: Marlborough, MA, United StatesReported employees: 51-200 | Marlborough, MA, United States | 51-200 | Exact match | 315 contacts → |
“Tata & Howard is a 100% employee owned, award-winning, specialized consulting engineering firm dedicated to providing superior client service coupled with delivering…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | HNB Engineers Pvt. LTDhnbc.in HQ: Pune, IndiaReported employees: 201-500 | Pune, India | 201-500 | Exact match | 191 contacts → |
“HNB ENGINEERS PVT.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Atlan Stormwateratlanstormwater.com HQ: Sydney Olympic Park, AustraliaReported employees: 201-500 | Sydney Olympic Park, Australia | 201-500 | Exact match | 147 contacts → |
“At Atlan Stormwater, we draw on more than 45 years’ experience in the design, testing and manufacture of water treatment systems that are utilised in over 45 countries.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Severn Trent Servicesstservices.co.uk HQ: Coventry, United KingdomReported employees: 1,001-5,000 | Coventry, United Kingdom | 1,001-5,000 | Exact match | 137 contacts → |
“Severn Trent Services offer a range of services to municipal and industrial clients, including the Ministry of Defence and the Coal Authority, for design, build and operation of…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Rh2 Engineeringrh2.com HQ: Bothell, WA, United StatesReported employees: 51-200 | Bothell, WA, United States | 51-200 | Exact match | 136 contacts → |
“RH2 is an innovative, full-service engineering firm specializing in water and wastewater related projects.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Water Works Engineerswaterworksengineers.com HQ: Scottsdale, AZ, United StatesReported employees: 51-200 | Scottsdale, AZ, United States | 51-200 | Exact match | 135 contacts → |
“Water Works Engineers is a leading civil and environmental engineering firm specializing in innovative and sustainable solutions for water infrastructure projects across the…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | GSE Construction Company, INCgseconstruction.com HQ: Livermore, CA, United StatesReported employees: 201-500 | Livermore, CA, United States | 201-500 | Exact match | 112 contacts → |
“Over the past 45 years, GSE Construction has completed more than projects as a general engineering contractor.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Jones & Henry Engineersjheng.com HQ: Toledo, OH, United StatesReported employees: 51-200 | Toledo, OH, United States | 51-200 | Exact match | 101 contacts → |
“Today, Jones & Henry Engineers, Ltd, continues to provide high quality consulting services in water, wastewater, storm water, and civil engineering to municipalities and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | CMP Consulting Groupcmpgroup.com.au HQ: Mulgrave, AustraliaReported employees: 51-200 | Mulgrave, Australia | 51-200 | Exact match | 94 contacts → |
“CMP Consulting Group is a multi-disciplinary Engineering firm specialising in design, project management and construction phase services for the Water Industry.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | S.T.A. Società Trattamento Acque SPAstacque.com HQ: Mantova, ItalyReported employees: 51-200 | Mantova, Italy | 51-200 | Exact match | 91 contacts → |
“STA aiuta le Società di Gestione del Servizio Idrico e le Piccole, Medie e Grandi Industrie a progettare, costruire e gestire impianti di trattamento delle acque reflue, primarie…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | A&s Engineers, INCas-engineers.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 79 contacts → |
“The objective of A&S is to provide municipal engineering services, with focus on water districts, municipalities, and land development.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | LEE ROlee-ro.com HQ: City Of Industry, CA, United StatesReported employees: 51-200 | City Of Industry, CA, United States | 51-200 | Exact match | 78 contacts → |
“Water: It’s a human thing.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Rotária DO Brasilbrasil.rotaria.net HQ: Florianópolis, BrazilReported employees: 51-200 | Florianópolis, Brazil | 51-200 | Exact match | 72 contacts → |
“A Rotária do Brasil é uma empresa de Engenharia especializada em projetos, implantação e operação de sistemas de tratamento de efluentes/esgotos e água potável.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Right Grouprightgroup.ie HQ: Castleisland, IrelandReported employees: 51-200 | Castleisland, Ireland | 51-200 | Exact match | 57 contacts → |
“At Right Group, our experienced team has collectively propelled us to the forefront as the leading provider of Electrical and Mechanical Engineering solutions in the water and…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Tritech Group LTDtritechgroup.ca HQ: Langley, BC, CanadaReported employees: 51-200 | Langley, BC, Canada | 51-200 | Exact match | 56 contacts → |
“Tritech is an industry leader in integrated design, project management, and construction services for water and wastewater infrastructure projects.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Aqua Engineeringaquaeng.com HQ: Bountiful, UT, United StatesReported employees: 51-200 | Bountiful, UT, United States | 51-200 | Exact match | 54 contacts → |
“AQUA Engineering (AQUA) is a civil engineering firm specializing in municipal engineering, water resources, water and wastewater treatment design, and environmental services.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | ACO Iberiaaco.es HQ: Maçanet De La Selva, SpainReported employees: 51-200 | Maçanet De La Selva, Spain | 51-200 | Exact match | 50 contacts → |
“ACO Grupo Iberia now offers, together with ACO Remosa-a family-run company with a long-standing presence in the market and now part of the ACO Group-systems and services to…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Clark Regional Wastewater Districtcrwwd.com HQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 49 contacts → |
“The position I hold is a one person GIS department.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | NCS Engineersncseng.com HQ: Phoenix, AZ, United StatesReported employees: 51-200 | Phoenix, AZ, United States | 51-200 | Exact match | 47 contacts → |
“NCS is an experienced water and wastewater engineering consulting firm with offices in Arizona, Maryland, Nevada, New Mexico and California.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Bosman Watermanagement B.Vbosmanwater.nl HQ: Piershil, NetherlandsReported employees: 51-200 | Piershil, Netherlands | 51-200 | Exact match | 40 contacts → |
“For over 90 years Bosman Watermanagement has been recognized for it's expertise in water management; including wind watermills, small pumping units, large capacity pumping…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | CBR Ingenieríacbr-ingenieria.com.mx HQ: Valle De Santiago, MexicoReported employees: 11-50 | Valle De Santiago, Mexico | 11-50 | Exact match | 37 contacts → |
“Empresa especialista en tratamiento de aguas residuales y sistemas de potabilización de agua.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Wastewater system design engineers: dataset insights
September 22, 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
744 records in the displayed employee bands.
6 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 750 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: September 22, 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 design engineers by location
3 lists · largest firstEvery Wastewater system design engineers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for wastewater system design 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 design engineers did RevenueBase find worldwide?
The saved snapshot records 750 matching company records, 9,894 tracked contacts and 4,179 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: September 22, 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.
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Cite this list
RevenueBase Data Team. Top 25 wastewater system design engineers worldwide. Snapshot: September 22, 2026. https://revenuebase.ai/companies/browse/wastewater-system-design-engineers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗