Company lists · Data refreshed September 2026
Top 25 Oil water separation companies worldwide
RevenueBase identified 1,147 oil water separation companies worldwide as of September 2026 and tracks 16,681 professional contacts across them, including 4,096 with verified work emails. The United States is the largest market and Houston the largest hub.
This list covers oil water separation companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026. Country and city lists for oil water separation companies follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 oil water separation companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 499 contacts → | ||||
Partial evidence “CETCO Energy Services (CETCO) specializes in treating complex fluids for offshore oil and gas operators.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 468 contacts → | ||||
Partial evidence “Flottweg is one of the world’s leading providers of solutions in the field of mechanical solid-liquid separation.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 379 contacts → | ||||
Partial evidence “ANDRITZ provides mechanical and thermal solid/liquid separation technologies, complemented by comprehensive services, automation, and digitalization solutions for the chemicals…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 300 contacts → | ||||
Indirect evidence “Whether topside, subsea, or a hybrid combination is required for your field, our diverse process and production solutions cover the life of a development, from concept to…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 275 contacts → | ||||
Indirect evidence “Somos uma das principais indústrias do segmento metalmecânico, com sede em Santa Catarina e atuação internacional.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 271 contacts → | ||||
Partial evidence “The European Specialist in Filtration For over 40 years, our company Hifi Filter is specialized of filtration/separation solutions for all mobile and industry process.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 255 contacts → | ||||
Partial evidence “Pall Corporation is a global leader in filtration, separation and purification.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 245 contacts → | ||||
Strong evidence “We’re world-leading experts in extraction and centrifugal separation and industry leaders in olive oil production lines We design and manufacture solid-liquid and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 196 contacts → | ||||
Indirect evidence “BOS Solutions (BOS) is a full service provider of solutions for drilling fluids treatment and recovery.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 153 contacts → | ||||
Partial evidence “Water is becoming one of the defining challenges of our century.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 144 contacts → | ||||
Partial evidence “Nordic Water is an international company which provides equipment and systems for water and wastewater treatment to process industries and public utilities.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 144 contacts → | ||||
Indirect evidence “PECO is part of Parker Hannifin, Industrial Process Filtration Division.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 126 contacts → | ||||
Partial evidence “JWC Environmental, a Sulzer Company, is a global leader in solids reduction, separation and removal systems for customers in a broad range of municipal and industrial applications.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 125 contacts → | ||||
Partial evidence “Diemme Filtration delivers advanced solid-liquid separation technologies for industrial processes worldwide.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 113 contacts → | ||||
Partial evidence “Komline is a global leader in advanced Separation Technologies, delivering innovative equipment that keeps industries running and communities thriving.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 108 contacts → | ||||
Partial evidence “Peerless designs and manufactures a wide range of compact, high efficiency filtration and separation equipment and environmental systems for the reduction of air pollution.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 106 contacts → | ||||
Partial evidence “Techouse is a leader in the provision of offshore platform processing equipment and services to the international oil & gas industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 106 contacts → | ||||
Partial evidence “Separation and Purification Systems” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 100 contacts → | ||||
Partial evidence “We offer Process Technologies and Engineered Solutions to Oil & Gas Industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 99 contacts → | ||||
Strong evidence “We are a global technology company focusing on offering reliable, innovative, and cost-efficient solutions in the oil, gas, and water industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 83 contacts → | ||||
Partial evidence “CbS Technologies, a leading manufacturer and exporter of Oil Filtration machines and Waste Engineering machines, designed to enhance the efficiency and longevity of your…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 83 contacts → | ||||
Indirect evidence “Filsep was founded in 1996 in Vadodara, Gujarat ( India) with the core objective of providing Process engineering and Filtration technology-based solutions to customers in the…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 82 contacts → | ||||
Strong evidence “At SAMCO Technologies, Inc, we provide cutting-edge water, wastewater, and process separation solutions for some of the world’s most demanding industries, including power…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 80 contacts → | ||||
Partial evidence “Trucent is a leader in the field of fluid separation solutions, specializing in advanced centrifuge technologies and services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 80 contacts → | ||||
Partial evidence “At Hydro-Dyne® Engineering we take great pride in our products and services as well as our ability to provide equipment for a variety of water and wastewater screen applications.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: oil water separation companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names oil water separation companies.
- Partial evidence
- Its own public description names part of oil water separation companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name oil water separation companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 1,147 oil water separation companies worldwide
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Oil water separation companies worldwide at a glance
As of Sep 20, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among oil water separation companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for oil water separation companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “oil water separation companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names oil water separation companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among oil water separation companies, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 4,096 across the full list. 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 20, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Oil water separation companies by location
8 lists · largest firstEvery Oil water separation companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Oil water separation companies based in the United States262
- Oil water separation companies based in India103
- Oil water separation companies based in Germany60
- Oil water separation companies based in Canada52
- Oil water separation companies based in Italy52
- Oil water separation companies based in the United Kingdom46
- Oil water separation companies based in Brazil41
- Oil water separation companies based in the Netherlands26
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names oil water separation companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many oil water separation companies are there worldwide?
RevenueBase identified 1,147 oil water separation companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Cetco Energy Services, headquartered in Houston, tops this list with the largest team on record.
Which country has the most oil water separation companies?
The United States leads with 262 companies, followed by India (103) and Germany (60). Every oil water separation companies list by country and city is linked on this page.
Which city has the most oil water separation companies?
Houston leads with 29 headquartered companies, followed by Calgary (19) and Pune (12).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 4,096 verified decision-maker contacts tracked across these 1,147 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.
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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 Smart Search, 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.