Company lists · Data refreshed October 2026

Top 25 Downhole fluid engineering services based in the United States

RevenueBase identified 499 company matches for downhole fluid engineering services associated with the United States as of October 2026 and tracks 17,146 professional contacts across them, including 4,674 with verified work emails. Houston is the largest hub.

This list covers company matches for downhole fluid engineering services associated with the United States, 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 October 24, 2026.

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.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 24, 2026 How this list was built
499Companies
17,146Contacts tracked
4,674Verified emails
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The 25 largest downhole fluid engineering services based in the United States

Ranked by team size
Top 25 of 499 company matches for downhole fluid engineering services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 24, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchThe Woodlands, TX, United StatesHQ recorded Oct 24, 20261,001-5,0001,329 contacts →

Exact match

“Cudd offers a broad range of technical and specialized oilfield services to companies engaged in the exploration and production of oil and natural gas worldwide.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
2Exact matchKaty, TX, United StatesHQ recorded Oct 24, 20261,001-5,0001,274 contacts →

Exact match

“Newpark Fluids Systems is the world’s leading pure-play oil & gas and geothermal fluid solutions provider.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
3Exact matchFort Worth, TX, United StatesHQ recorded Oct 24, 20261,001-5,000750 contacts →

Exact match

“When you’re in the oilfield, you need a name you can trust.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Oct 24, 20261,001-5,000742 contacts →

Exact match

“With a culture built on high performance and flawless execution, Nine Energy Service is a unique kind of oilfield services company, offering industry-shaping completion solutions…”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
5Exact matchHouston, TX, United StatesHQ recorded Oct 24, 20261,001-5,000627 contacts →

Exact match

“Worldwide Oilfield Machine (WOM) is a multinational equipment manufacturer specializing in solutions for drilling, testing, production and intervention operations.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Oct 24, 2026501-1,000547 contacts →

Exact match

“CETCO Energy Services (CETCO) specializes in treating complex fluids for offshore oil and gas operators.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Oct 24, 20261,001-5,000506 contacts →

Exact match

“Ranger is one of the largest providers of high specification mobile rig well services, cased hole wireline services, and ancillary services in the U.S.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
8Exact matchNewcastle, OK, United StatesHQ recorded Oct 24, 2026501-1,000445 contacts →

Exact match

“Only Thru Tubing Solutions offers the specialized downhole equipment and services to deliver the results you need, right when you need them.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
9Exact matchTulsa, OK, United StatesHQ recorded Oct 24, 2026501-1,000426 contacts →

Exact match

“Summit ESP is a service of Halliburton that provides integrated Electric Submersible Pumping systems to enhance daily well production and total reservoir recovery.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Oct 24, 2026501-1,000373 contacts →

Exact match

“AES Drilling Fluids is prepared to successfully deliver on any challenging project from the well site to the customer's office.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Oct 24, 2026201-500345 contacts →

Exact match

“ADA is a global energy services company specializing in advanced drilling solutions for oil, gas, and geothermal applications.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Oct 24, 2026201-500305 contacts →

Exact match

“Since our founding in 2006, NCS Multistage has grown to be a leading provider of engineered products and support services for oil and natural gas wells around the world.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
13Exact matchHouston, TX, United StatesHQ recorded Oct 24, 2026201-500288 contacts →

Exact match

“Strength.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
14Exact matchHouston, TX, United StatesHQ recorded Oct 24, 2026201-500283 contacts →

Exact match

“NOV™ IntelliServ® provides the oil and gas industry with broadband networked drillstrings and along-string evaluation that enables downhole conditions to be measured, evaluated…”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Oct 24, 2026201-500212 contacts →

Exact match

“BOS Solutions (BOS) is a full service provider of solutions for drilling fluids treatment and recovery.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
16Exact matchMillsap, TX, United StatesHQ recorded Oct 24, 2026201-500188 contacts →

Exact match

“GEODynamics creates and delivers downhole solutions that enable unsurpassed oil and gas well economics, performance, and lifespan.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
17Exact matchMesquite, TX, United StatesHQ recorded Oct 24, 2026201-500177 contacts →

Exact match

“Founded in 1956, Fritz Industries is an employee owned company that has grown into an international research and manufacturing company serving oilfield customers worldwide.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
18Exact matchThe Woodlands, TX, United StatesHQ recorded Oct 24, 202651-200165 contacts →

Exact match

“Well intervention operations range from basic applications in the well to complex downhole challenges – and each require a custom designed solution.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
19Exact matchTomball, TX, United StatesHQ recorded Oct 24, 2026201-500155 contacts →

Exact match

“Windlass manufactures, supplies and supports a wide range of API certified drilling equipment.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
20Exact matchTulsa, OK, United StatesHQ recorded Oct 24, 2026501-1,000153 contacts →

Exact match

“Now hiring in all 8 districts.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
21Exact matchCatoosa, OK, United StatesHQ recorded Oct 24, 2026201-500146 contacts →

Exact match

“SERVA develops specialized gas and oilfield equipment to offer reliable, safe and efficient products for global energy development.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
22Exact matchHouston, TX, United StatesHQ recorded Oct 24, 202651-200137 contacts →

Exact match

“Since 1989 WWT International (WWT) has been developing unique products to help operators reach farther in drilling, completion and intervention worldwide.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
23Exact matchHouma, LA, United StatesHQ recorded Oct 24, 202651-200126 contacts →

Exact match

“Supreme Services is an oil & energy company based out of United States.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
24Exact matchHouston, TX, United StatesHQ recorded Oct 24, 2026201-500117 contacts →

Exact match

“Blackhawk Specialty Tools provides oil and gas operators with engineered solutions that improve performance and efficiency.”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase
25Exact matchKeithville, LA, United StatesHQ recorded Oct 24, 202651-200104 contacts →

Exact match

“Industry Leader in Engineered Fluids & Specialty Chemicals for Post-Frac Completions & Production Intervention Our Fluid Systems:*HydroLyft: our lowest density fluid system with…”

Recorded in the RevenueBase company graph · Oct 24, 2026 · View company records in RevenueBase

Showing 25 of 499 downhole fluid engineering services based in the United States

See the full list, filter by size, metro and specialty, and access 4,674 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Downhole fluid engineering services based in the United States at a glance

As of Oct 24, 2026
27.3%Verified-email coverage
34.4Average contacts per company
11-50Median size (employees)
22.6%Largest-city concentration · Houston
Oct 24, 2026Page data refreshed

Companies by employee count

1-10
168
11-50
192
51-200
90
201-500
28
501-1,000
10
1,001-5,000
10
5,001-10,000
1

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 499 companies.

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.
What qualifies
Company records associated with the United States whose business descriptions match “downhole fluid engineering services” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 4,674 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 October 24, 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.

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 “downhole fluid engineering services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many downhole fluid engineering services are there based in the United States?

RevenueBase identified 499 company matches for downhole fluid engineering services associated with the United States as of October 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?

Cudd Energy Services tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most downhole fluid engineering services?

Houston leads with 113 company records, followed by Midland (44) and Odessa (11).

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 4,674 professional contacts with verified work emails tracked across these 499 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 October 24, 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 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.