Company lists · Data refreshed September 2026
Top 25 Activated sludge treatment plant builders worldwide
RevenueBase identified 1,197 company matches for activated sludge treatment plant builders worldwide as of September 2026 and tracks 15,866 professional contacts across them, including 4,786 with verified work emails. India is the largest market and Tehran the largest hub.
This list covers company matches for activated sludge treatment plant builders 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 19, 2026. Country and city lists for activated sludge treatment plant builders 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 treatment plant builders worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 19, 2026 · View company records in RevenueBase | |||||
| 2 | 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 19, 2026 · View company records in RevenueBase | |||||
| 3 | 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 19, 2026 · View company records in RevenueBase | |||||
| 4 | 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 19, 2026 · View company records in RevenueBase | |||||
| 5 | 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 19, 2026 · View company records in RevenueBase | |||||
| 6 | 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 19, 2026 · View company records in RevenueBase | |||||
| 7 | 243 contacts → | ||||
Exact match “HUBER Technology, LLC, the U.S.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 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 19, 2026 · View company records in RevenueBase | |||||
| 9 | 191 contacts → | ||||
Exact match “HNB ENGINEERS PVT.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 185 contacts → | ||||
Exact match “Newterra designs, engineers, manufactures, and services environmental, water and wastewater treatment solutions that assure great performance, superb reliability, and the highest…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 179 contacts → | ||||
Exact match “Together with our customers, BW Water, now part of De Nora Water Technologies, is committed to addressing the world's most critical water challenges.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 173 contacts → | ||||
Exact match “We specialize in the design, construction, and operation of water treatment facilities.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 172 contacts → | ||||
Exact match “S&L delivers long-lasting, reliable and easy-to-operate wastewater pumping and treatment systems for municipal, federal, and industrial-commercial applications.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 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 19, 2026 · View company records in RevenueBase | |||||
| 15 | 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 19, 2026 · View company records in RevenueBase | |||||
| 16 | 133 contacts → | ||||
Exact match “Tomorrow Water is an innovative environmental solutions company specializing in both wastewater and organic waste treatment.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 113 contacts → | ||||
Exact match “We from PWT Wasser- und Abwassertechnik GmbH with headquarter in Zwingenberg Germany (Close to Frankfurt am Main, Mannheim and Darmstadt) are speacialized as turnkey supplier…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 104 contacts → | ||||
Exact match “For more than 20 years we have developed, planned and installed "turnkey" waste treatment plants all over the world and we are the leading manufacturer of equipment for the sector.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 97 contacts → | ||||
Exact match “At World Water Works, we strive to provide industrial and municipal customers with proven and cost-effective wastewater treatment solutions that deliver superior effluent quality.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 95 contacts → | ||||
Exact match “Water l Science l Technology The Hydroflux Group is a team of water and wastewater treatment experts harnessing the power of world leading research and technologies for a more…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 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 19, 2026 · View company records in RevenueBase | |||||
| 22 | 87 contacts → | ||||
Exact match “Environmental Dynamics International (EDI) specializes in the research, development and application of advanced technology aeration and biological treatment solutions.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 81 contacts → | ||||
Exact match “MENA-Water is an engineering and manufacturing company that provides innovative solutions and services in the fields of water and wastewater treatment.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 81 contacts → | ||||
Exact match “PT LAUTAN ORGANO WATER was established in 2006 as an engineering company with name PT HYDRO HITECH OPTIMA (well known as H2O) at the beginning.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 80 contacts → | ||||
Exact match “Sewerage Systems Ghana Limited (SSGL) is a fully Ghanaian owned Engineering and Construction Company that focuses on the provision of efficient liquid waste treatment.” Recorded in the RevenueBase company graph · Sep 19, 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 treatment plant builders”. 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 1,197 activated sludge treatment plant builders worldwide
See the full list, filter by size, metro and specialty, and access 4,786 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Activated sludge treatment plant builders worldwide at a glance
As of Sep 19, 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 treatment plant builders are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “activated sludge treatment plant builders” 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 4,786 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 19, 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 treatment plant builders by location
8 lists · largest firstEvery Activated sludge treatment plant builders list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Activated sludge treatment plant builders based in India146
- Activated sludge treatment plant builders based in the United States140
- Activated sludge treatment plant builders based in Italy66
- Activated sludge treatment plant builders based in Germany64
- Activated sludge treatment plant builders based in the United Kingdom44
- Activated sludge treatment plant builders based in Spain38
- Activated sludge treatment plant builders based in Brazil26
- Activated sludge treatment plant builders based in Australia25
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 treatment plant builders”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many activated sludge treatment plant builders are there worldwide?
RevenueBase identified 1,197 company matches for activated sludge treatment plant builders 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?
MWH Treatment tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most activated sludge treatment plant builders?
India leads with 146 companies, followed by the United States (140) and Italy (66). Every activated sludge treatment plant builders list by country and city is linked on this page.
Which city has the most activated sludge treatment plant builders?
Tehran leads with 17 company records, followed by Pune (14) and Chennai (12).
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 4,786 professional contacts with verified work emails tracked across these 1,197 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 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,197 activated sludge treatment plant builders 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 treatment plant builders worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,197 matching company records for activated sludge treatment plant builders worldwide, with 15,866 tracked contacts and 4,786 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 19, 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 treatment plant builders 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 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: Coraopolis, PA, United StatesReported employees: 201-500 | Coraopolis, PA, United States | 201-500 | Exact match | 185 contacts → |
“Newterra designs, engineers, manufactures, and services environmental, water and wastewater treatment solutions that assure great performance, superb reliability, and the highest…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | BW Waterbw-water.com HQ: Singapore, United StatesReported employees: 201-500 | Singapore, United States | 201-500 | Exact match | 179 contacts → |
“Together with our customers, BW Water, now part of De Nora Water Technologies, is committed to addressing the world's most critical water challenges.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | HQ: Bilbao-bilbo, SpainReported employees: 51-200 | Bilbao-bilbo, Spain | 51-200 | Exact match | 173 contacts → |
“We specialize in the design, construction, and operation of water treatment facilities.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HQ: Lenexa, KS, United StatesReported employees: 201-500 | Lenexa, KS, United States | 201-500 | Exact match | 172 contacts → |
“S&L delivers long-lasting, reliable and easy-to-operate wastewater pumping and treatment systems for municipal, federal, and industrial-commercial applications.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Tomorrow Watertomorrowwater.com HQ: Anaheim, CA, United StatesReported employees: 51-200 | Anaheim, CA, United States | 51-200 | Exact match | 133 contacts → |
“Tomorrow Water is an innovative environmental solutions company specializing in both wastewater and organic waste treatment.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Zwingenberg, GermanyReported employees: 51-200 | Zwingenberg, Germany | 51-200 | Exact match | 113 contacts → |
“We from PWT Wasser- und Abwassertechnik GmbH with headquarter in Zwingenberg Germany (Close to Frankfurt am Main, Mannheim and Darmstadt) are speacialized as turnkey supplier…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | HQ: Celrà, SpainReported employees: 51-200 | Celrà, Spain | 51-200 | Exact match | 104 contacts → |
“For more than 20 years we have developed, planned and installed "turnkey" waste treatment plants all over the world and we are the leading manufacturer of equipment for the sector.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | World Water Works, INCworldwaterworks.com HQ: Oklahoma City, OK, United StatesReported employees: 51-200 | Oklahoma City, OK, United States | 51-200 | Exact match | 97 contacts → |
“At World Water Works, we strive to provide industrial and municipal customers with proven and cost-effective wastewater treatment solutions that deliver superior effluent quality.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HQ: Sydney, AustraliaReported employees: 51-200 | Sydney, Australia | 51-200 | Exact match | 95 contacts → |
“Water l Science l Technology The Hydroflux Group is a team of water and wastewater treatment experts harnessing the power of world leading research and technologies for a more…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | EDI Environmental Dynamics Internationalwastewater.com HQ: Columbia, MO, United StatesReported employees: 201-500 | Columbia, MO, United States | 201-500 | Exact match | 87 contacts → |
“Environmental Dynamics International (EDI) specializes in the research, development and application of advanced technology aeration and biological treatment solutions.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Mena-Watermena-water.com HQ: Saif Zone, United Arab EmiratesReported employees: 51-200 | Saif Zone, United Arab Emirates | 51-200 | Exact match | 81 contacts → |
“MENA-Water is an engineering and manufacturing company that provides innovative solutions and services in the fields of water and wastewater treatment.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | PT Lautan Organo Waterlautanorganowater.com HQ: Jakarta Barat, IndonesiaReported employees: 201-500 | Jakarta Barat, Indonesia | 201-500 | Exact match | 81 contacts → |
“PT LAUTAN ORGANO WATER was established in 2006 as an engineering company with name PT HYDRO HITECH OPTIMA (well known as H2O) at the beginning.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Sewerage Systems Ghana Limitedseweragesystems.com HQ: Jamestown Accra - Lavender Hill, GhanaReported employees: 51-200 | Jamestown Accra - Lavender Hill, Ghana | 51-200 | Exact match | 80 contacts → |
“Sewerage Systems Ghana Limited (SSGL) is a fully Ghanaian owned Engineering and Construction Company that focuses on the provision of efficient liquid waste treatment.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,197 company matches
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Activated sludge treatment plant builders: dataset insights
September 19, 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
1,193 records in the displayed employee bands.
4 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 1,197 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 19, 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 treatment plant builders by location
8 lists · largest firstEvery Activated sludge treatment plant builders list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Activated sludge treatment plant builders based in India146
- Activated sludge treatment plant builders based in the United States140
- Activated sludge treatment plant builders based in Italy66
- Activated sludge treatment plant builders based in Germany64
- Activated sludge treatment plant builders based in the United Kingdom44
- Activated sludge treatment plant builders based in Spain38
- Activated sludge treatment plant builders based in Brazil26
- Activated sludge treatment plant builders based in Australia25
Questions about this company list
What does Exact match mean for activated sludge treatment plant builders?
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 treatment plant builders did RevenueBase find worldwide?
The saved snapshot records 1,197 matching company records, 15,866 tracked contacts and 4,786 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 19, 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 activated sludge treatment plant builders worldwide. Snapshot: September 19, 2026. https://revenuebase.ai/companies/browse/activated-sludge-treatment-plant-builders.
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 treatment plant builders worldwide
RevenueBase records 1,197 matching company records for activated sludge treatment plant builders worldwide, with 15,866 tracked contacts and 4,786 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 19, 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 treatment plant builders 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 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: Coraopolis, PA, United StatesReported employees: 201-500 | Coraopolis, PA, United States | 201-500 | Exact match | 185 contacts → |
“Newterra designs, engineers, manufactures, and services environmental, water and wastewater treatment solutions that assure great performance, superb reliability, and the highest…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | BW Waterbw-water.com HQ: Singapore, United StatesReported employees: 201-500 | Singapore, United States | 201-500 | Exact match | 179 contacts → |
“Together with our customers, BW Water, now part of De Nora Water Technologies, is committed to addressing the world's most critical water challenges.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | HQ: Bilbao-bilbo, SpainReported employees: 51-200 | Bilbao-bilbo, Spain | 51-200 | Exact match | 173 contacts → |
“We specialize in the design, construction, and operation of water treatment facilities.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HQ: Lenexa, KS, United StatesReported employees: 201-500 | Lenexa, KS, United States | 201-500 | Exact match | 172 contacts → |
“S&L delivers long-lasting, reliable and easy-to-operate wastewater pumping and treatment systems for municipal, federal, and industrial-commercial applications.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Tomorrow Watertomorrowwater.com HQ: Anaheim, CA, United StatesReported employees: 51-200 | Anaheim, CA, United States | 51-200 | Exact match | 133 contacts → |
“Tomorrow Water is an innovative environmental solutions company specializing in both wastewater and organic waste treatment.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | HQ: Zwingenberg, GermanyReported employees: 51-200 | Zwingenberg, Germany | 51-200 | Exact match | 113 contacts → |
“We from PWT Wasser- und Abwassertechnik GmbH with headquarter in Zwingenberg Germany (Close to Frankfurt am Main, Mannheim and Darmstadt) are speacialized as turnkey supplier…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | HQ: Celrà, SpainReported employees: 51-200 | Celrà, Spain | 51-200 | Exact match | 104 contacts → |
“For more than 20 years we have developed, planned and installed "turnkey" waste treatment plants all over the world and we are the leading manufacturer of equipment for the sector.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | World Water Works, INCworldwaterworks.com HQ: Oklahoma City, OK, United StatesReported employees: 51-200 | Oklahoma City, OK, United States | 51-200 | Exact match | 97 contacts → |
“At World Water Works, we strive to provide industrial and municipal customers with proven and cost-effective wastewater treatment solutions that deliver superior effluent quality.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | HQ: Sydney, AustraliaReported employees: 51-200 | Sydney, Australia | 51-200 | Exact match | 95 contacts → |
“Water l Science l Technology The Hydroflux Group is a team of water and wastewater treatment experts harnessing the power of world leading research and technologies for a more…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | 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 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | EDI Environmental Dynamics Internationalwastewater.com HQ: Columbia, MO, United StatesReported employees: 201-500 | Columbia, MO, United States | 201-500 | Exact match | 87 contacts → |
“Environmental Dynamics International (EDI) specializes in the research, development and application of advanced technology aeration and biological treatment solutions.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Mena-Watermena-water.com HQ: Saif Zone, United Arab EmiratesReported employees: 51-200 | Saif Zone, United Arab Emirates | 51-200 | Exact match | 81 contacts → |
“MENA-Water is an engineering and manufacturing company that provides innovative solutions and services in the fields of water and wastewater treatment.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | PT Lautan Organo Waterlautanorganowater.com HQ: Jakarta Barat, IndonesiaReported employees: 201-500 | Jakarta Barat, Indonesia | 201-500 | Exact match | 81 contacts → |
“PT LAUTAN ORGANO WATER was established in 2006 as an engineering company with name PT HYDRO HITECH OPTIMA (well known as H2O) at the beginning.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Sewerage Systems Ghana Limitedseweragesystems.com HQ: Jamestown Accra - Lavender Hill, GhanaReported employees: 51-200 | Jamestown Accra - Lavender Hill, Ghana | 51-200 | Exact match | 80 contacts → |
“Sewerage Systems Ghana Limited (SSGL) is a fully Ghanaian owned Engineering and Construction Company that focuses on the provision of efficient liquid waste treatment.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Activated sludge treatment plant builders: dataset insights
September 19, 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
1,193 records in the displayed employee bands.
4 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 1,197 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 19, 2026.
Publisher-reported method study
The published RevenueBase SmartSearch benchmark
86% good or better at Exact
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. It reports 86% of Exact matches judged good or better, and 77% for a 240-pair sample of one- or two-word categories. This evaluates the method across study queries rather than auditing this individual list.
Read the study and full methodology ↗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 treatment plant builders by location
8 lists · largest firstEvery Activated sludge treatment plant builders list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Activated sludge treatment plant builders based in India146
- Activated sludge treatment plant builders based in the United States140
- Activated sludge treatment plant builders based in Italy66
- Activated sludge treatment plant builders based in Germany64
- Activated sludge treatment plant builders based in the United Kingdom44
- Activated sludge treatment plant builders based in Spain38
- Activated sludge treatment plant builders based in Brazil26
- Activated sludge treatment plant builders based in Australia25
Questions about this company list
What does Exact match mean for activated sludge treatment plant builders?
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 treatment plant builders did RevenueBase find worldwide?
The saved snapshot records 1,197 matching company records, 15,866 tracked contacts and 4,786 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 19, 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.
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Cite this list
RevenueBase Data Team. Top 25 activated sludge treatment plant builders worldwide. Snapshot: September 19, 2026. https://revenuebase.ai/companies/browse/activated-sludge-treatment-plant-builders.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗