Company lists · Data refreshed September 2026
Top 25 Pump and compressor engineers staffing companies based in the United States
RevenueBase identified 446 pump and compressor engineers staffing companies headquartered in the United States as of September 2026 and tracks 14,684 professional contacts across them, including 5,497 with verified work emails. Houston is the largest hub.
This list covers pump and compressor engineers staffing companies headquartered in the United States, 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 29, 2026.
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 pump and compressor engineers staffing companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,889 contacts → | ||||
Partial evidence “Gardner Denver Compressor, Blower and Vacuum Products with over 160 years of industrial innovation and manufacturing of mission critical compression and vacuum solutions and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,071 contacts → | ||||
Partial evidence “Kaeser is one of the largest providers of compressed air systems and compressed air consulting services, with over employees worldwide.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 778 contacts → | ||||
Strong evidence “Honeywell Sundyne manufactures highly reliable engineered pumps and compressors for global companies in upstream and midstream oil and gas production, refining, petrochemical…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 672 contacts → | ||||
Partial evidence “Ariel Corporation is the leading manufacturer of reciprocating gas compressors in the global energy industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 529 contacts → | ||||
Indirect evidence “Troy has been serving the pipeline industry by providing safe and efficient pipeline construction and maintenance for more than 70 years.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 527 contacts → | ||||
Partial evidence “For over 145 years, Ingersoll Rand has provided a wide range of technologically advanced, highly reliable and low maintenance air compressors.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 402 contacts → | ||||
Strong evidence “Sterling is an award-winning professional engineering consulting and technical staffing company.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 381 contacts → | ||||
Indirect evidence “We build the machines that power industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 347 contacts → | ||||
Indirect evidence “Barber-Nichols (BN) is located in Arvada, Colorado, a suburb of Denver.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 311 contacts → | ||||
Strong evidence “FS-Elliott is a global leader in the engineering and manufacturing of oil-free, centrifugal compressors, with operations in over 90 countries.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 277 contacts → | ||||
Strong evidence “Whether the target is improved reliability, greater efficiency, emissions control or cost savings, Cook Compression combines the engineering expertise, high-quality products…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 260 contacts → | ||||
Partial evidence “CPI, part of the Howden group, is an international manufacturing and services company focused on providing the best products and services for the compression industry.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 222 contacts → | ||||
Partial evidence “For over 60 years, Florida's businesses have depended on Comp-Air Service Company for our commitment to exceeding their expectations in the field of the compressed air market.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 187 contacts → | ||||
Indirect evidence “We understand you want to be recognized for your reputation of reliable and efficient project completion.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 185 contacts → | ||||
Indirect evidence “Atlas designs, repairs, and remanufactures complex equipment and components for industry and municipalities.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 180 contacts → | ||||
Partial evidence “One of the world's largest industrial compressor distributors in the United States.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 170 contacts → | ||||
Strong evidence “Aerzen USA is a wholly-owned subsidiary of Aerzener Maschinenfabrik GmbH, a manufacturer of positive displacement blowers, high-speed turbo blowers, compressors, and vacuum pumps.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 144 contacts → | ||||
Strong evidence “Haskel is the leading manufacturer of highly engineered pumps, gas compressors, valves and equipment designed to generate and control high pressures and deliver high-pressure…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 141 contacts → | ||||
Partial evidence “TCCI is a global leader in compressor technology for commercial, heavy-duty, and automotive specialty markets and offers the largest range of electric compressor capacity and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 126 contacts → | ||||
Partial evidence “At Burckhardt Compression, we create leading compression solutions for a sustainable energy future.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 121 contacts → | ||||
Indirect evidence “Founded in 1960 by “Charlie” Cummins and “Chub” Wagner, Cummins-Wagner serves Maryland, Virginia, Washington DC, Delaware, West Virginia, and Pennsylvania with leading brands of…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 121 contacts → | ||||
Strong evidence “Bristol Compressors International, LLC, designs and manufactures hermetic compressors for residential and light commercial air conditioning, heat pump and refrigeration…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 110 contacts → | ||||
Indirect evidence “K&R Operating is staffed with certified, professional and experienced technicians throughout the United States, positioning us to provide our customers with services for all their…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 103 contacts → | ||||
Strong evidence “Founded in 1945, Dearing Compressor & Pump Co.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 97 contacts → | ||||
Indirect evidence “Zone Industries started in the Houston area in 2012 with a single driving mission: to build the go-to solution for clients with any motor-related issue.” Source: RevenueBase Database · checked Sep 29, 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: pump and compressor engineers staffing 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 pump and compressor engineers staffing companies.
- Partial evidence
- Its own public description names part of pump and compressor engineers staffing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name pump and compressor engineers staffing 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 446 pump and compressor engineers staffing companies based in the United States
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Pump and compressor engineers staffing companies based in the United States at a glance
As of Sep 29, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 446 companies.
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 pump and compressor engineers staffing 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.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “pump and compressor engineers staffing 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 pump and compressor engineers staffing 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 pump and compressor engineers staffing companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- 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, 5,497 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 29, 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.
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 pump and compressor engineers staffing 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 pump and compressor engineers staffing companies are there based in the United States?
RevenueBase identified 446 pump and compressor engineers staffing companies headquartered in the United States 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?
Gardner Denver, headquartered in Quincy, tops this list with the largest team on record.
Which city has the most pump and compressor engineers staffing companies?
Houston leads with 23 headquartered companies, followed by Midland (8) and Charlotte (7).
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 5,497 verified decision-maker contacts tracked across these 446 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 29, 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.
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