Company lists · Data refreshed November 2026
Top 25 Activated sludge process operators worldwide
RevenueBase identified 2,115 company matches for activated sludge process operators worldwide as of November 2026 and tracks 26,922 professional contacts across them, including 7,454 with verified work emails. The United States is the largest market and Pune the largest hub.
This list covers company matches for activated sludge process operators worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for activated sludge process operators 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 process operators worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 857 contacts → | ||||
Exact match “Ovivo is a powerful global brand, uniting world-renowned trademarks and a highly specialized team of 700 water treatment experts operating across the globe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 588 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 434 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 407 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 310 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 306 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 267 contacts → | ||||
Exact match “Optimierung.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 265 contacts → | ||||
Exact match “Water and Wastewater Treatment Equipment and Chemicals” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 252 contacts → | ||||
Exact match “Rely on USABlueBook for everything you need for water and wastewater operations and maintenance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 247 contacts → | ||||
Exact match “HUBER Technology, LLC, the U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 234 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 195 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 189 contacts → | ||||
Exact match “Water is life.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 178 contacts → | ||||
Exact match “Water is becoming one of the defining challenges of our century.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 177 contacts → | ||||
Exact match “Traitement des Eaux Industrielles et Lixiviats Location de Matériel et Prestations d'Exploitation Industry wastewater and Leachate treatment Equipment rental and operation…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 177 contacts → | ||||
Exact match “Aquatec partners with Government, business and residential clients to deliver water, wastewater and odour control solutions for the long-term.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 177 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 171 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 168 contacts → | ||||
Exact match “Moalajah is a leading company providing water and waste-water services to its clients in UAE.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 165 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 147 contacts → | ||||
Exact match “Nordic Water is an international company which provides equipment and systems for water and wastewater treatment to process industries and public utilities.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 136 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 134 contacts → | ||||
Exact match “Euroteck Environmental Pvt.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 130 contacts → | ||||
Exact match “A Attend Ambiental é fruto da parceria entre: • a Sabesp, uma das maiores empresas de saneamento do mundo, e • a Latte Saneamento, maior empresa de serviços ambientais do Brasil.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 128 contacts → | ||||
Exact match “A B&F Dias é referência mundial em soluções para tratamento de águas e efluentes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “activated sludge process operators”. 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 2,115 activated sludge process operators worldwide
See the full list, filter by size, metro and specialty, and access 7,454 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Activated sludge process operators worldwide at a glance
As of Nov 6, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for activated sludge process operators are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “activated sludge process operators” 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 7,454 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on November 6, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Activated sludge process operators by location
11 lists · largest firstEvery Activated sludge process operators list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Activated sludge process operators based in the United States350
- Activated sludge process operators based in India273
- Activated sludge process operators based in Germany106
- Activated sludge process operators based in Brazil83
- Activated sludge process operators based in Italy82
- Activated sludge process operators based in the United Kingdom82
- Activated sludge process operators based in France57
- Activated sludge process operators based in Canada53
- Activated sludge process operators based in Spain46
- Activated sludge process operators based in Australia42
- Activated sludge process operators based in the Netherlands26
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 process operators”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many activated sludge process operators are there worldwide?
RevenueBase identified 2,115 company matches for activated sludge process operators worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
OVIVO tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most activated sludge process operators?
The United States leads with 350 companies, followed by India (273) and Germany (106). Every activated sludge process operators list by country and city is linked on this page.
Which city has the most activated sludge process operators?
Pune leads with 28 company records, followed by Ahmedabad (20) and Chennai (16).
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 7,454 professional contacts with verified work emails tracked across these 2,115 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 2,115 activated sludge process operators 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 process operators worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 2,115 matching company records for activated sludge process operators worldwide, with 26,922 tracked contacts and 7,454 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 activated sludge process operators 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 |  OVIVOovivowater.comHQ: Montreal, QC, CanadaReported employees: 501-1,000 | Montreal, QC, Canada | 501-1,000 | Exact match | 857 contacts → |
“Ovivo is a powerful global brand, uniting world-renowned trademarks and a highly specialized team of 700 water treatment experts operating across the globe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Westech Engineeringwestechwater.comHQ: Salt Lake City, United StatesReported employees: 501-1,000 | Salt Lake City, United States | 501-1,000 | Exact match | 588 contacts → |
“WesTech Engineering, LLC designs, engineers, and manufactures water and wastewater treatment process equipment for mineral, industrial, and municipal applications worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  HUBERhuber-se.comHQ: Berching, United Arab EmiratesReported employees: 1,001-5,000 | Berching, United Arab Emirates | 1,001-5,000 | Exact match | 434 contacts → |
“HUBER is a globally operating company with over employees, of which around work at the headquarters in Berching (Germany).” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  UCC Environmentaluccenvironmental.comHQ: Waukegan, AB, United StatesReported employees: 201-500 | Waukegan, AB, United States | 201-500 | Exact match | 407 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Severn Trent Servicesstservices.co.ukHQ: Coventry, United KingdomReported employees: 1,001-5,000 | Coventry, United Kingdom | 1,001-5,000 | Exact match | 310 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Infiltrator Water Technologies Decentralized Wastewater Treatment Solutionsinfiltratorwater.comHQ: Old Saybrook, CT, United StatesReported employees: 1,001-5,000 | Old Saybrook, CT, United States | 1,001-5,000 | Exact match | 306 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  WTE Wassertechnik Gmbhwte.deHQ: E, GermanyReported employees: 501-1,000 | E, Germany | 501-1,000 | Exact match | 267 contacts → |
“Optimierung.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  AES Arabia LTDaesarabia.comHQ: Saudi ArabiaReported employees: 201-500 | Saudi Arabia | 201-500 | Exact match | 265 contacts → |
“Water and Wastewater Treatment Equipment and Chemicals” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Usabluebookusabluebook.comHQ: Waukegan, IL, United StatesReported employees: 5,001-10,000 | Waukegan, IL, United States | 5,001-10,000 | Exact match | 252 contacts → |
“Rely on USABlueBook for everything you need for water and wastewater operations and maintenance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Huber Technology UShuber-technology.comHQ: Denver, NC, United StatesReported employees: 201-500 | Denver, NC, United States | 201-500 | Exact match | 247 contacts → |
“HUBER Technology, LLC, the U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Aqua-Aerobic Systems, INCaqua-aerobic.comHQ: Loves Park, IL, United StatesReported employees: 51-200 | Loves Park, IL, United States | 51-200 | Exact match | 234 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 |  Newterranewterra.comHQ: Coraopolis, PA, United StatesReported employees: 201-500 | Coraopolis, PA, United States | 201-500 | Exact match | 195 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Membrane Group India Pvt. LTDmembranegroupindia.comHQ: Gurgaon, IndiaReported employees: 501-1,000 | Gurgaon, India | 501-1,000 | Exact match | 189 contacts → |
“Water is life.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Aqseptence Groupaqseptence.comHQ: Aarbergen, GermanyReported employees: 1,001-5,000 | Aarbergen, Germany | 1,001-5,000 | Exact match | 178 contacts → |
“Water is becoming one of the defining challenges of our century.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  OVIVEovive.frHQ: Seclin, FranceReported employees: 51-200 | Seclin, France | 51-200 | Exact match | 177 contacts → |
“Traitement des Eaux Industrielles et Lixiviats Location de Matériel et Prestations d'Exploitation Industry wastewater and Leachate treatment Equipment rental and operation…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Aquatecaquatecenviro.comHQ: Shepparton, AustraliaReported employees: 51-200 | Shepparton, Australia | 51-200 | Exact match | 177 contacts → |
“Aquatec partners with Government, business and residential clients to deliver water, wastewater and odour control solutions for the long-term.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Smith & Loveless INCsmithandloveless.comHQ: Lenexa, KS, United StatesReported employees: 201-500 | Lenexa, KS, United States | 201-500 | Exact match | 177 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Atlan Stormwateratlanstormwater.comHQ: Sydney Olympic Park, AustraliaReported employees: 201-500 | Sydney Olympic Park, Australia | 201-500 | Exact match | 171 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Moalajahmoalajah.aeHQ: Ajman, United Arab EmiratesReported employees: 201-500 | Ajman, United Arab Emirates | 201-500 | Exact match | 168 contacts → |
“Moalajah is a leading company providing water and waste-water services to its clients in UAE.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  BW Waterdenora.comHQ: Singapore, United StatesReported employees: 201-500 | Singapore, United States | 201-500 | Exact match | 165 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Nordic Water Productsnordicwater.comHQ: Mölndal, SwedenReported employees: 51-200 | Mölndal, Sweden | 51-200 | Exact match | 147 contacts → |
“Nordic Water is an international company which provides equipment and systems for water and wastewater treatment to process industries and public utilities.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Tomorrow Watertomorrowwater.comHQ: Anaheim, CA, United StatesReported employees: 51-200 | Anaheim, CA, United States | 51-200 | Exact match | 136 contacts → |
“Tomorrow Water is an innovative environmental solutions company specializing in both wastewater and organic waste treatment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Euroteck Environmental PVT LTDeuroteckindia.comHQ: Hyderabad, IndiaReported employees: 201-500 | Hyderabad, India | 201-500 | Exact match | 134 contacts → |
“Euroteck Environmental Pvt.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Attend Ambiental S.Aattendambiental.com.brHQ: Barueri, BrazilReported employees: 51-200 | Barueri, Brazil | 51-200 | Exact match | 130 contacts → |
“A Attend Ambiental é fruto da parceria entre: • a Sabesp, uma das maiores empresas de saneamento do mundo, e • a Latte Saneamento, maior empresa de serviços ambientais do Brasil.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  B&f Diasbfdias.com.brHQ: Vinhedo, BrazilReported employees: 51-200 | Vinhedo, Brazil | 51-200 | Exact match | 128 contacts → |
“A B&F Dias é referência mundial em soluções para tratamento de águas e efluentes.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,115 company matches
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Activated sludge process operators: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
2,080 records in the displayed employee bands.
35 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 2,115 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Activated sludge process operators by location
11 lists · largest firstEvery Activated sludge process operators list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Activated sludge process operators based in the United States350
- Activated sludge process operators based in India273
- Activated sludge process operators based in Germany106
- Activated sludge process operators based in Brazil83
- Activated sludge process operators based in Italy82
- Activated sludge process operators based in the United Kingdom82
- Activated sludge process operators based in France57
- Activated sludge process operators based in Canada53
- Activated sludge process operators based in Spain46
- Activated sludge process operators based in Australia42
- Activated sludge process operators based in the Netherlands26
Questions about this company list
What does Exact match mean for activated sludge process operators?
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 process operators did RevenueBase find worldwide?
The saved snapshot records 2,115 matching company records, 26,922 tracked contacts and 7,454 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 activated sludge process operators worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/activated-sludge-process-operators.
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 process operators worldwide
RevenueBase records 2,115 matching company records for activated sludge process operators worldwide, with 26,922 tracked contacts and 7,454 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 activated sludge process operators 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 | OVIVOovivowater.com HQ: Montreal, QC, CanadaReported employees: 501-1,000 | Montreal, QC, Canada | 501-1,000 | Exact match | 857 contacts → |
“Ovivo is a powerful global brand, uniting world-renowned trademarks and a highly specialized team of 700 water treatment experts operating across the globe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Westech Engineeringwestechwater.com HQ: Salt Lake City, United StatesReported employees: 501-1,000 | Salt Lake City, United States | 501-1,000 | Exact match | 588 contacts → |
“WesTech Engineering, LLC designs, engineers, and manufactures water and wastewater treatment process equipment for mineral, industrial, and municipal applications worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | HUBERhuber-se.com HQ: Berching, United Arab EmiratesReported employees: 1,001-5,000 | Berching, United Arab Emirates | 1,001-5,000 | Exact match | 434 contacts → |
“HUBER is a globally operating company with over employees, of which around work at the headquarters in Berching (Germany).” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | UCC Environmentaluccenvironmental.com HQ: Waukegan, AB, United StatesReported employees: 201-500 | Waukegan, AB, United States | 201-500 | Exact match | 407 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Severn Trent Servicesstservices.co.uk HQ: Coventry, United KingdomReported employees: 1,001-5,000 | Coventry, United Kingdom | 1,001-5,000 | Exact match | 310 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Infiltrator Water Technologies Decentralized Wastewater Treatment Solutionsinfiltratorwater.com HQ: Old Saybrook, CT, United StatesReported employees: 1,001-5,000 | Old Saybrook, CT, United States | 1,001-5,000 | Exact match | 306 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | WTE Wassertechnik Gmbhwte.de HQ: E, GermanyReported employees: 501-1,000 | E, Germany | 501-1,000 | Exact match | 267 contacts → |
“Optimierung.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | AES Arabia LTDaesarabia.com HQ: Saudi ArabiaReported employees: 201-500 | Saudi Arabia | 201-500 | Exact match | 265 contacts → |
“Water and Wastewater Treatment Equipment and Chemicals” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Usabluebookusabluebook.com HQ: Waukegan, IL, United StatesReported employees: 5,001-10,000 | Waukegan, IL, United States | 5,001-10,000 | Exact match | 252 contacts → |
“Rely on USABlueBook for everything you need for water and wastewater operations and maintenance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Huber Technology UShuber-technology.com HQ: Denver, NC, United StatesReported employees: 201-500 | Denver, NC, United States | 201-500 | Exact match | 247 contacts → |
“HUBER Technology, LLC, the U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Aqua-Aerobic Systems, INCaqua-aerobic.com HQ: Loves Park, IL, United StatesReported employees: 51-200 | Loves Park, IL, United States | 51-200 | Exact match | 234 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 12 | Newterranewterra.com HQ: Coraopolis, PA, United StatesReported employees: 201-500 | Coraopolis, PA, United States | 201-500 | Exact match | 195 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Membrane Group India Pvt. LTDmembranegroupindia.com HQ: Gurgaon, IndiaReported employees: 501-1,000 | Gurgaon, India | 501-1,000 | Exact match | 189 contacts → |
“Water is life.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Aqseptence Groupaqseptence.com HQ: Aarbergen, GermanyReported employees: 1,001-5,000 | Aarbergen, Germany | 1,001-5,000 | Exact match | 178 contacts → |
“Water is becoming one of the defining challenges of our century.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | OVIVEovive.fr HQ: Seclin, FranceReported employees: 51-200 | Seclin, France | 51-200 | Exact match | 177 contacts → |
“Traitement des Eaux Industrielles et Lixiviats Location de Matériel et Prestations d'Exploitation Industry wastewater and Leachate treatment Equipment rental and operation…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Aquatecaquatecenviro.com HQ: Shepparton, AustraliaReported employees: 51-200 | Shepparton, Australia | 51-200 | Exact match | 177 contacts → |
“Aquatec partners with Government, business and residential clients to deliver water, wastewater and odour control solutions for the long-term.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Smith & Loveless INCsmithandloveless.com HQ: Lenexa, KS, United StatesReported employees: 201-500 | Lenexa, KS, United States | 201-500 | Exact match | 177 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Atlan Stormwateratlanstormwater.com HQ: Sydney Olympic Park, AustraliaReported employees: 201-500 | Sydney Olympic Park, Australia | 201-500 | Exact match | 171 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Moalajahmoalajah.ae HQ: Ajman, United Arab EmiratesReported employees: 201-500 | Ajman, United Arab Emirates | 201-500 | Exact match | 168 contacts → |
“Moalajah is a leading company providing water and waste-water services to its clients in UAE.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | BW Waterdenora.com HQ: Singapore, United StatesReported employees: 201-500 | Singapore, United States | 201-500 | Exact match | 165 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Nordic Water Productsnordicwater.com HQ: Mölndal, SwedenReported employees: 51-200 | Mölndal, Sweden | 51-200 | Exact match | 147 contacts → |
“Nordic Water is an international company which provides equipment and systems for water and wastewater treatment to process industries and public utilities.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Tomorrow Watertomorrowwater.com HQ: Anaheim, CA, United StatesReported employees: 51-200 | Anaheim, CA, United States | 51-200 | Exact match | 136 contacts → |
“Tomorrow Water is an innovative environmental solutions company specializing in both wastewater and organic waste treatment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Euroteck Environmental PVT LTDeuroteckindia.com HQ: Hyderabad, IndiaReported employees: 201-500 | Hyderabad, India | 201-500 | Exact match | 134 contacts → |
“Euroteck Environmental Pvt.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Attend Ambiental S.Aattendambiental.com.br HQ: Barueri, BrazilReported employees: 51-200 | Barueri, Brazil | 51-200 | Exact match | 130 contacts → |
“A Attend Ambiental é fruto da parceria entre: • a Sabesp, uma das maiores empresas de saneamento do mundo, e • a Latte Saneamento, maior empresa de serviços ambientais do Brasil.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | B&f Diasbfdias.com.br HQ: Vinhedo, BrazilReported employees: 51-200 | Vinhedo, Brazil | 51-200 | Exact match | 128 contacts → |
“A B&F Dias é referência mundial em soluções para tratamento de águas e efluentes.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Activated sludge process operators: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
2,080 records in the displayed employee bands.
35 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 2,115 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Activated sludge process operators by location
11 lists · largest firstEvery Activated sludge process operators list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Activated sludge process operators based in the United States350
- Activated sludge process operators based in India273
- Activated sludge process operators based in Germany106
- Activated sludge process operators based in Brazil83
- Activated sludge process operators based in Italy82
- Activated sludge process operators based in the United Kingdom82
- Activated sludge process operators based in France57
- Activated sludge process operators based in Canada53
- Activated sludge process operators based in Spain46
- Activated sludge process operators based in Australia42
- Activated sludge process operators based in the Netherlands26
Questions about this company list
What does Exact match mean for activated sludge process operators?
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 process operators did RevenueBase find worldwide?
The saved snapshot records 2,115 matching company records, 26,922 tracked contacts and 7,454 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
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Cite this list
RevenueBase Data Team. Top 25 activated sludge process operators worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/activated-sludge-process-operators.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗