Company lists · Data refreshed September 2026
Top 25 Activated sludge system contractors worldwide
RevenueBase identified 4,343 company matches for activated sludge system contractors worldwide as of September 2026 and tracks 60,090 professional contacts across them, including 15,756 with verified work emails. The United States is the largest market and Pune the largest hub.
This list covers company matches for activated sludge system contractors 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 30, 2026. Country and city lists for activated sludge system contractors 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 activated sludge system contractors worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,810 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 · Sep 30, 2026 · View company records in RevenueBase | |||||
| 2 | 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 30, 2026 · View company records in RevenueBase | |||||
| 3 | 1,196 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 · Sep 30, 2026 · View company records in RevenueBase | |||||
| 4 | 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 30, 2026 · View company records in RevenueBase | |||||
| 5 | 829 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 · Sep 30, 2026 · View company records in RevenueBase | |||||
| 6 | 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 30, 2026 · View company records in RevenueBase | |||||
| 7 | 609 contacts → | ||||
Exact match “Founded in 1904, Nijhuis Saur Industries provides solid and adaptive solutions for sustainable and resilient water use, energy- and resource recovery.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 8 | 554 contacts → | ||||
Exact match “WesTech Engineering, LLC designs, engineers, and manufactures water and wastewater treatment process equipment for mineral, industrial, and municipal applications worldwide.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 9 | 435 contacts → | ||||
Exact match “Al ruim een halve eeuw zetten we ons in voor duurzame oplossingen op het gebied van waterkwaliteit, waterveiligheid, bio-energie en industriële bouw en infra.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 10 | 434 contacts → | ||||
Exact match “Identificamos e solucionamos problemas relacionados ao tratamento de água e efluentes, reúso, dessalinização e análises ambientais para indústrias, consultorias ambientais e…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 11 | 411 contacts → | ||||
Exact match “Waterleau is your partner in sustainable water stewardship.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 12 | 389 contacts → | ||||
Exact match “UCC Environmental (UCC) is a global leader in environmental solutions for solids handling, wastewater treatment and pollution control technologies in power generation and other…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 13 | 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 30, 2026 · View company records in RevenueBase | |||||
| 14 | 307 contacts → | ||||
Exact match “Com mais de 30 anos de atuação no mercado brasileiro, a Enfil é uma empresa referência em soluções ambientais para tratamento de água, efluentes e controle de emissões…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 15 | 296 contacts → | ||||
Exact match “Akcionáři společnosti: Hlavní činnosti: Provozování vodovodů a kanalizací Úprava vod a čistění odpadních vod Poradenství ve vodohospodářské činnosti Investorsko-inženýrská činnost…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 16 | 295 contacts → | ||||
Exact match “Protecting the environment with innovative wastewater treatment solutions for over 35 years, Infiltrator is the leading manufacturer of onsite wastewater treatment products in…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 17 | 293 contacts → | ||||
Exact match “AMENHYD spa, a private company under Algerian law, has been a pioneer and leader in the fields of the environment for 25 years.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 18 | 254 contacts → | ||||
Exact match “HUBER is a globally operating company with over employees, of which around work at the headquarters in Berching (Germany).” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 19 | 244 contacts → | ||||
Exact match “Water and Wastewater Treatment Equipment and Chemicals” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 20 | 243 contacts → | ||||
Exact match “HUBER Technology, LLC, the U.S.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 21 | 242 contacts → | ||||
Exact match “Optimierung.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 22 | 221 contacts → | ||||
Exact match “Esli PWG Ltd.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 23 | 217 contacts → | ||||
Exact match “Company Overview: TRILITY is an established industry leader, dedicated in the delivery of water, wastewater, reuse and bio-solids solutions across Australia and New Zealand’s…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 24 | 207 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase | |||||
| 25 | 195 contacts → | ||||
Exact match “Formed in 2017 following the consolidation of independent water treatment solution providers Emefcy and RWL Water, Fluence Corporation was established with the vision of becoming…” Recorded in the RevenueBase company graph · Sep 30, 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 “activated sludge system contractors”. 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 4,343 activated sludge system contractors worldwide
See the full list, filter by size, metro and specialty, and access 15,756 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Activated sludge system contractors worldwide at a glance
As of Sep 30, 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 activated sludge system contractors are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “activated sludge system contractors” 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 15,756 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 30, 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.
Activated sludge system contractors by location
21 lists · largest firstEvery Activated sludge system contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Activated sludge system contractors based in the United States572
- Activated sludge system contractors based in India548
- Activated sludge system contractors based in Italy219
- Activated sludge system contractors based in Germany183
- Activated sludge system contractors based in Brazil176
- Activated sludge system contractors based in the United Kingdom145
- Activated sludge system contractors based in Türkiye141
- Activated sludge system contractors based in Canada105
- Activated sludge system contractors based in France103
- Activated sludge system contractors based in Spain97
- Activated sludge system contractors based in Australia74
- Activated sludge system contractors based in Malaysia66
- Activated sludge system contractors based in Mexico61
- Activated sludge system contractors based in Poland54
- Activated sludge system contractors based in the Netherlands53
- Activated sludge system contractors based in South Africa51
- Activated sludge system contractors based in the United Arab Emirates47
- Activated sludge system contractors based in Sweden26
Cities
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 “activated sludge system contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many activated sludge system contractors are there worldwide?
RevenueBase identified 4,343 company matches for activated sludge system contractors 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?
ION Exchange India LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most activated sludge system contractors?
The United States leads with 572 companies, followed by India (548) and Italy (219). Every activated sludge system contractors list by country and city is linked on this page.
Which city has the most activated sludge system contractors?
Pune leads with 58 company records, followed by Tehran (44) and Ahmedabad (40).
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 15,756 professional contacts with verified work emails tracked across these 4,343 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 30, 2026.
Ready to reach these companies? Verified emails and direct dials for all 4,343 activated sludge system contractors 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 activated sludge system contractors worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 4,343 matching company records for activated sludge system contractors worldwide, with 60,090 tracked contacts and 15,756 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 30, 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 activated sludge system contractors 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 | ION Exchange India LTDionexchangeglobal.com HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 3,810 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 · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Volvo Eicher Commerical Vehical Limitedindiamart.com HQ: Dhar, IndiaReported employees: Not recorded | Dhar, India | Not recorded | Exact match | 1,196 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 · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  OVIVOovivowater.comHQ: Montreal, QC, CanadaReported employees: 501-1,000 | Montreal, QC, Canada | 501-1,000 | Exact match | 829 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 · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Nijhuis Saur Industriesnijhuissaurindustries.comHQ: Doetinchem, NetherlandsReported employees: 1,001-5,000 | Doetinchem, Netherlands | 1,001-5,000 | Exact match | 609 contacts → |
“Founded in 1904, Nijhuis Saur Industries provides solid and adaptive solutions for sustainable and resilient water use, energy- and resource recovery.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Westech Engineeringwestechwater.comHQ: Salt Lake City, UT, United StatesReported employees: 501-1,000 | Salt Lake City, UT, United States | 501-1,000 | Exact match | 554 contacts → |
“WesTech Engineering, LLC designs, engineers, and manufactures water and wastewater treatment process equipment for mineral, industrial, and municipal applications worldwide.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | GMBgmb.eu HQ: Opheusden, NetherlandsReported employees: 501-1,000 | Opheusden, Netherlands | 501-1,000 | Exact match | 435 contacts → |
“Al ruim een halve eeuw zetten we ons in voor duurzame oplossingen op het gebied van waterkwaliteit, waterveiligheid, bio-energie en industriële bouw en infra.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Grupo EPgrupoep.com.brHQ: Guarulhos, BrazilReported employees: 501-1,000 | Guarulhos, Brazil | 501-1,000 | Exact match | 434 contacts → |
“Identificamos e solucionamos problemas relacionados ao tratamento de água e efluentes, reúso, dessalinização e análises ambientais para indústrias, consultorias ambientais e…” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Waterleauwaterleau.comHQ: Wespelaar, FranceReported employees: 201-500 | Wespelaar, France | 201-500 | Exact match | 411 contacts → |
“Waterleau is your partner in sustainable water stewardship.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | UCC Environmentaluccenvironmental.com HQ: Waukegan, IL, United StatesReported employees: 201-500 | Waukegan, IL, United States | 201-500 | Exact match | 389 contacts → |
“UCC Environmental (UCC) is a global leader in environmental solutions for solids handling, wastewater treatment and pollution control technologies in power generation and other…” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Enfil S Aenfil.com.brHQ: São Paulo, BrazilReported employees: 1,001-5,000 | São Paulo, Brazil | 1,001-5,000 | Exact match | 307 contacts → |
“Com mais de 30 anos de atuação no mercado brasileiro, a Enfil é uma empresa referência em soluções ambientais para tratamento de água, efluentes e controle de emissões…” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | HQ: Praha 1, Czech RepublicReported employees: 1,001-5,000 | Praha 1, Czech Republic | 1,001-5,000 | Exact match | 296 contacts → |
“Akcionáři společnosti: Hlavní činnosti: Provozování vodovodů a kanalizací Úprava vod a čistění odpadních vod Poradenství ve vodohospodářské činnosti Investorsko-inženýrská činnost…” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Infiltrator Water Technologies Decentralized Wastewater Treatment Solutionsinfiltratorwater.com HQ: Old Saybrook, CT, United StatesReported employees: 501-1,000 | Old Saybrook, CT, United States | 501-1,000 | Exact match | 295 contacts → |
“Protecting the environment with innovative wastewater treatment solutions for over 35 years, Infiltrator is the leading manufacturer of onsite wastewater treatment products in…” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Amenhydamenhyd.com HQ: Bab Ezzouar, AlgeriaReported employees: 1,001-5,000 | Bab Ezzouar, Algeria | 1,001-5,000 | Exact match | 293 contacts → |
“AMENHYD spa, a private company under Algerian law, has been a pioneer and leader in the fields of the environment for 25 years.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  HUBERhuber-se.comHQ: Berching, United Arab EmiratesReported employees: 1,001-5,000 | Berching, United Arab Emirates | 1,001-5,000 | Exact match | 254 contacts → |
“HUBER is a globally operating company with over employees, of which around work at the headquarters in Berching (Germany).” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | AES Arabia LTDaesarabia.com HQ: Saudi ArabiaReported employees: 201-500 | Saudi Arabia | 201-500 | Exact match | 244 contacts → |
“Water and Wastewater Treatment Equipment and Chemicals” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Huber Technology UShuber-technology.com HQ: Denver, NC, United StatesReported employees: 201-500 | Denver, NC, United States | 201-500 | Exact match | 243 contacts → |
“HUBER Technology, LLC, the U.S.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  WTE Wassertechnik Gmbhwte.deHQ: E, GermanyReported employees: 501-1,000 | E, Germany | 501-1,000 | Exact match | 242 contacts → |
“Optimierung.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Esli Pollet Water Groupesli.com.tr HQ: Antalya, TürkiyeReported employees: 201-500 | Antalya, Türkiye | 201-500 | Exact match | 221 contacts → |
“Esli PWG Ltd.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Trilitytrility.com.auHQ: Adelaide, AustraliaReported employees: 201-500 | Adelaide, Australia | 201-500 | Exact match | 217 contacts → |
“Company Overview: TRILITY is an established industry leader, dedicated in the delivery of water, wastewater, reuse and bio-solids solutions across Australia and New Zealand’s…” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Aqua-Aerobic Systems, INCaqua-aerobic.comHQ: Loves Park, IL, United StatesReported employees: 51-200 | Loves Park, IL, United States | 51-200 | Exact match | 207 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 |  Fluence Corporationfluencecorp.comHQ: Minneapolis, MN, United StatesReported employees: 201-500 | Minneapolis, MN, United States | 201-500 | Exact match | 195 contacts → |
“Formed in 2017 following the consolidation of independent water treatment solution providers Emefcy and RWL Water, Fluence Corporation was established with the vision of becoming…” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 4,343 company matches
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Activated sludge system contractors: dataset insights
September 30, 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
4,313 records in the displayed employee bands.
30 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 4,343 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 30, 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 ↗
Activated sludge system contractors by location
21 lists · largest firstEvery Activated sludge system contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Activated sludge system contractors based in the United States572
- Activated sludge system contractors based in India548
- Activated sludge system contractors based in Italy219
- Activated sludge system contractors based in Germany183
- Activated sludge system contractors based in Brazil176
- Activated sludge system contractors based in the United Kingdom145
- Activated sludge system contractors based in Türkiye141
- Activated sludge system contractors based in Canada105
- Activated sludge system contractors based in France103
- Activated sludge system contractors based in Spain97
- Activated sludge system contractors based in Australia74
- Activated sludge system contractors based in Malaysia66
- Activated sludge system contractors based in Mexico61
- Activated sludge system contractors based in Poland54
- Activated sludge system contractors based in the Netherlands53
- Activated sludge system contractors based in South Africa51
- Activated sludge system contractors based in the United Arab Emirates47
- Activated sludge system contractors based in Sweden26
Cities
Questions about this company list
What does Exact match mean for activated sludge system contractors?
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 activated sludge system contractors did RevenueBase find worldwide?
The saved snapshot records 4,343 matching company records, 60,090 tracked contacts and 15,756 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 30, 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 activated sludge system contractors worldwide. Snapshot: September 30, 2026. https://revenuebase.ai/companies/browse/activated-sludge-system-contractors.
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 activated sludge system contractors worldwide
RevenueBase records 4,343 matching company records for activated sludge system contractors worldwide, with 60,090 tracked contacts and 15,756 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 30, 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 activated sludge system contractors 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 | ION Exchange India LTDionexchangeglobal.com HQ: Mumbai, IndiaReported employees: 1,001-5,000 | Mumbai, India | 1,001-5,000 | Exact match | 3,810 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 · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Volvo Eicher Commerical Vehical Limitedindiamart.com HQ: Dhar, IndiaReported employees: Not recorded | Dhar, India | Not recorded | Exact match | 1,196 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 · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | OVIVOovivowater.com HQ: Montreal, QC, CanadaReported employees: 501-1,000 | Montreal, QC, Canada | 501-1,000 | Exact match | 829 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 · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Nijhuis Saur Industriesnijhuissaurindustries.com HQ: Doetinchem, NetherlandsReported employees: 1,001-5,000 | Doetinchem, Netherlands | 1,001-5,000 | Exact match | 609 contacts → |
“Founded in 1904, Nijhuis Saur Industries provides solid and adaptive solutions for sustainable and resilient water use, energy- and resource recovery.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Westech Engineeringwestechwater.com HQ: Salt Lake City, UT, United StatesReported employees: 501-1,000 | Salt Lake City, UT, United States | 501-1,000 | Exact match | 554 contacts → |
“WesTech Engineering, LLC designs, engineers, and manufactures water and wastewater treatment process equipment for mineral, industrial, and municipal applications worldwide.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | GMBgmb.eu HQ: Opheusden, NetherlandsReported employees: 501-1,000 | Opheusden, Netherlands | 501-1,000 | Exact match | 435 contacts → |
“Al ruim een halve eeuw zetten we ons in voor duurzame oplossingen op het gebied van waterkwaliteit, waterveiligheid, bio-energie en industriële bouw en infra.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Grupo EPgrupoep.com.br HQ: Guarulhos, BrazilReported employees: 501-1,000 | Guarulhos, Brazil | 501-1,000 | Exact match | 434 contacts → |
“Identificamos e solucionamos problemas relacionados ao tratamento de água e efluentes, reúso, dessalinização e análises ambientais para indústrias, consultorias ambientais e…” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Waterleauwaterleau.com HQ: Wespelaar, FranceReported employees: 201-500 | Wespelaar, France | 201-500 | Exact match | 411 contacts → |
“Waterleau is your partner in sustainable water stewardship.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | UCC Environmentaluccenvironmental.com HQ: Waukegan, IL, United StatesReported employees: 201-500 | Waukegan, IL, United States | 201-500 | Exact match | 389 contacts → |
“UCC Environmental (UCC) is a global leader in environmental solutions for solids handling, wastewater treatment and pollution control technologies in power generation and other…” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | 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 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Enfil S Aenfil.com.br HQ: São Paulo, BrazilReported employees: 1,001-5,000 | São Paulo, Brazil | 1,001-5,000 | Exact match | 307 contacts → |
“Com mais de 30 anos de atuação no mercado brasileiro, a Enfil é uma empresa referência em soluções ambientais para tratamento de água, efluentes e controle de emissões…” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | HQ: Praha 1, Czech RepublicReported employees: 1,001-5,000 | Praha 1, Czech Republic | 1,001-5,000 | Exact match | 296 contacts → |
“Akcionáři společnosti: Hlavní činnosti: Provozování vodovodů a kanalizací Úprava vod a čistění odpadních vod Poradenství ve vodohospodářské činnosti Investorsko-inženýrská činnost…” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Infiltrator Water Technologies Decentralized Wastewater Treatment Solutionsinfiltratorwater.com HQ: Old Saybrook, CT, United StatesReported employees: 501-1,000 | Old Saybrook, CT, United States | 501-1,000 | Exact match | 295 contacts → |
“Protecting the environment with innovative wastewater treatment solutions for over 35 years, Infiltrator is the leading manufacturer of onsite wastewater treatment products in…” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Amenhydamenhyd.com HQ: Bab Ezzouar, AlgeriaReported employees: 1,001-5,000 | Bab Ezzouar, Algeria | 1,001-5,000 | Exact match | 293 contacts → |
“AMENHYD spa, a private company under Algerian law, has been a pioneer and leader in the fields of the environment for 25 years.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | HUBERhuber-se.com HQ: Berching, United Arab EmiratesReported employees: 1,001-5,000 | Berching, United Arab Emirates | 1,001-5,000 | Exact match | 254 contacts → |
“HUBER is a globally operating company with over employees, of which around work at the headquarters in Berching (Germany).” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | AES Arabia LTDaesarabia.com HQ: Saudi ArabiaReported employees: 201-500 | Saudi Arabia | 201-500 | Exact match | 244 contacts → |
“Water and Wastewater Treatment Equipment and Chemicals” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Huber Technology UShuber-technology.com HQ: Denver, NC, United StatesReported employees: 201-500 | Denver, NC, United States | 201-500 | Exact match | 243 contacts → |
“HUBER Technology, LLC, the U.S.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | WTE Wassertechnik Gmbhwte.de HQ: E, GermanyReported employees: 501-1,000 | E, Germany | 501-1,000 | Exact match | 242 contacts → |
“Optimierung.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Esli Pollet Water Groupesli.com.tr HQ: Antalya, TürkiyeReported employees: 201-500 | Antalya, Türkiye | 201-500 | Exact match | 221 contacts → |
“Esli PWG Ltd.” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Trilitytrility.com.au HQ: Adelaide, AustraliaReported employees: 201-500 | Adelaide, Australia | 201-500 | Exact match | 217 contacts → |
“Company Overview: TRILITY is an established industry leader, dedicated in the delivery of water, wastewater, reuse and bio-solids solutions across Australia and New Zealand’s…” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Aqua-Aerobic Systems, INCaqua-aerobic.com HQ: Loves Park, IL, United StatesReported employees: 51-200 | Loves Park, IL, United States | 51-200 | Exact match | 207 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | Fluence Corporationfluencecorp.com HQ: Minneapolis, MN, United StatesReported employees: 201-500 | Minneapolis, MN, United States | 201-500 | Exact match | 195 contacts → |
“Formed in 2017 following the consolidation of independent water treatment solution providers Emefcy and RWL Water, Fluence Corporation was established with the vision of becoming…” Recorded description excerpt · September 30, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 4,343 company matches
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Activated sludge system contractors: dataset insights
September 30, 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
4,313 records in the displayed employee bands.
30 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 4,343 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 30, 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 ↗
Activated sludge system contractors by location
21 lists · largest firstEvery Activated sludge system contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Activated sludge system contractors based in the United States572
- Activated sludge system contractors based in India548
- Activated sludge system contractors based in Italy219
- Activated sludge system contractors based in Germany183
- Activated sludge system contractors based in Brazil176
- Activated sludge system contractors based in the United Kingdom145
- Activated sludge system contractors based in Türkiye141
- Activated sludge system contractors based in Canada105
- Activated sludge system contractors based in France103
- Activated sludge system contractors based in Spain97
- Activated sludge system contractors based in Australia74
- Activated sludge system contractors based in Malaysia66
- Activated sludge system contractors based in Mexico61
- Activated sludge system contractors based in Poland54
- Activated sludge system contractors based in the Netherlands53
- Activated sludge system contractors based in South Africa51
- Activated sludge system contractors based in the United Arab Emirates47
- Activated sludge system contractors based in Sweden26
Cities
Questions about this company list
What does Exact match mean for activated sludge system contractors?
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 activated sludge system contractors did RevenueBase find worldwide?
The saved snapshot records 4,343 matching company records, 60,090 tracked contacts and 15,756 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 30, 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
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Cite this list
RevenueBase Data Team. Top 25 activated sludge system contractors worldwide. Snapshot: September 30, 2026. https://revenuebase.ai/companies/browse/activated-sludge-system-contractors.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗