Company lists · Data refreshed October 2026

Top 25 Downstream oil and gas contractors based in Houston, United States

RevenueBase identified 180 company matches for downstream oil and gas contractors associated with Houston, United States as of October 2026 and tracks 38,352 professional contacts across them, including 8,229 with verified work emails. Across the United States, Houston is the largest hub for this category.

This list covers company matches for downstream oil and gas contractors associated with Houston, 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 11, 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 11, 2026 How this list was built
180Companies
38,352Contacts tracked
8,229Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest downstream oil and gas contractors based in Houston, United States

Ranked by team size
Top 25 of 180 company matches for downstream oil and gas contractors based in Houston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 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 matchHouston, TX, United StatesHQ recorded Oct 11, 202610001+21,087 contacts →

Exact match

“McDermott is a premier provider of engineering and construction solutions to the energy industry.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Oct 11, 20265,001-10,0003,615 contacts →

Exact match

“S&B is an engineer and constructor that designs and builds some of the largest and most complex industrial facilities in the world.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
3Exact matchHouston, TX, United StatesHQ recorded Oct 11, 20261,001-5,0001,652 contacts →

Exact match

“Founded in 1997, Audubon Companies LLC provides EPC, consulting, fabrication, and field services to energy and industrial operators across the globe.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Oct 11, 20261,001-5,0001,171 contacts →

Exact match

“At Gulf Companies, we are driven by our mission to serve a vital role in the global energy industry.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
5Exact matchHouston, TX, United StatesHQ recorded Oct 11, 20261,001-5,000725 contacts →

Exact match

“WYATT is recognized for executing complex maintenance, outage, turnaround, and capital construction projects across the Oil, Gas & Chemical, and Power markets.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Oct 11, 202610001+724 contacts →

Exact match

“Primoris is a specialty energy infrastructure contractor serving the oil and gas and power industries with offerings that primarily include construction, maintenance and…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Oct 11, 20261,001-5,000621 contacts →

Exact match

“The Mundy Companies is a privately owned company headquartered in Houston, Texas with offices Pasadena, TX, Nederland, TX, and Wilmington, NC.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
8Exact matchHouston, TX, United StatesHQ recorded Oct 11, 20261,001-5,000558 contacts →

Exact match

“Troy has been serving the pipeline industry by providing safe and efficient pipeline construction and maintenance for more than 70 years.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
9Exact matchHouston, TX, United StatesHQ recorded Oct 11, 2026n/a545 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Oct 11, 20265,001-10,000447 contacts →

Exact match

“With decades of refinery, petrochemical, fertilizer and power plant experience, CAM Industrial Solutions has become the standard in heavy industrial maintenance, turnaround and…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Oct 11, 20261,001-5,000337 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
12Exact matchHouston, TX, United StatesHQ recorded Oct 11, 2026201-500315 contacts →

Exact match

“Kestrel provides engineering, project and construction management and inspection services to the oil and gas industries.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
13Exact matchHouston, TX, United StatesHQ recorded Oct 11, 2026501-1,000192 contacts →

Exact match

“Gulf Island is a leading fabricator of complex steel structures and modules and provider of specialty services, including project management, hookup, commissioning, repair…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14Exact matchHouston, TX, United StatesHQ recorded Oct 11, 202651-200158 contacts →

Exact match

“Deepsea Technologies, Inc.(DTI) Engineers and Manufactures a wide range of products and equipment used in subsea oil & gas field development projects.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Oct 11, 2026201-500158 contacts →

Exact match

“MPG Pipeline Contractors, LLC is a wholly-owned subsidiary of Partners Pipeline Construction, LLC with corporate offices located in Houston, TX & New Iberia, LA.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16Exact matchHouston, TX, United StatesHQ recorded Oct 11, 2026201-500139 contacts →

Exact match

“We, Pyramid E&C provide Modular, Digital and Sustainable Hydrocarbon processing solutions from last 25 years and have executed more than 700 projects worldwide.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17Exact matchHouston, TX, United StatesHQ recorded Oct 11, 202651-200136 contacts →

Exact match

“PERC Engineering is a full-service engineering & project management firm in the oil & gas energy sector.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Oct 11, 2026501-1,000136 contacts →

Exact match

“Holloman Corporation is an Engineering, Procurement, and Construction company with capabilities to design, build, and service energy-related projects on a global level.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19Exact matchHouston, TX, United StatesHQ recorded Oct 11, 2026501-1,000117 contacts →

Exact match

“Bedrock Petroleum Consultants was formed in 2011 with the goal of providing the highest level of quality service to both our consultants and operator clients.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20Exact matchHouston, TX, United StatesHQ recorded Oct 11, 202651-20079 contacts →

Exact match

“Strategy Engineering is a privately-owned technical services company located within the Energy Corridor in Houston, TX.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
21Exact matchHouston, TX, United StatesHQ recorded Oct 11, 202651-20078 contacts →

Exact match

“B&L Pipeco Services, a subsidiary of Sumitomo Corporation, is the result of a merger between B&L Supply (est.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22Exact matchHouston, TX, United StatesHQ recorded Oct 11, 202651-20064 contacts →

Exact match

“Third Coast is an offshore focused midstream company headquartered in Houston, Texas.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
23Exact matchHouston, TX, United StatesHQ recorded Oct 11, 202651-20057 contacts →

Exact match

“For over 60 years, KF Valves and its market leading brands have been delivering customer-focused, product and service solutions for the world's most demanding energy applications…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
24Exact matchHouston, TX, United StatesHQ recorded Oct 11, 202651-20055 contacts →

Exact match

“BD Energy Systems LLC located in Houston, TX, USA is a world leading engineering company operating in the Petrochemical, Fertilizer, Refining, and Gas Processing industry…”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25Exact matchHouston, TX, United StatesHQ recorded Oct 11, 202651-20053 contacts →

Exact match

“Azota is a leading provider of gas infrastructure projects based in Houston, Texas.”

Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase

Showing 25 of 180 downstream oil and gas contractors based in Houston, United States

See the full list, filter by size, metro and specialty, and access 8,229 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Downstream oil and gas contractors based in Houston, United States at a glance

As of Oct 11, 2026
21.5%Verified-email coverage
213.1Average contacts per company
11-50Median size (employees)
Oct 11, 2026Page data refreshed

Companies by employee count

1-10
51
11-50
61
51-200
35
201-500
7
501-1,000
10
1,001-5,000
9
5,001-10,000
4
10001+
3

Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 180 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 Houston, United States whose business descriptions match “downstream oil and gas contractors” 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 8,229 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 11, 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.

Downstream oil and gas contractors by metro in the United States

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 “downstream oil and gas contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many downstream oil and gas contractors are there based in Houston, United States?

RevenueBase identified 180 company matches for downstream oil and gas contractors associated with Houston, 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?

Mcdermott International, LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most downstream oil and gas contractors?

Houston leads the United States with 180 company records, followed by Midland (35) and Odessa (23).

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 8,229 professional contacts with verified work emails tracked across these 180 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 11, 2026.

Ready to reach these companies? Verified emails and direct dials for all 180 downstream oil and gas contractors based in Houston, United States. Start with a free account, no credit card.

Download this list →

Related lists

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.