Company lists · Data refreshed September 2026

Top 25 Petroleum refining equipment installation companies based in the United States

Name: Petroleum refining equipment installation companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 15, 2026 784 companies tracked

RevenueBase identified 784 petroleum refining equipment installation companies headquartered in the United States as of September 2026 and tracks 39,126 professional contacts across them, including 10,064 with verified work emails. Houston is the largest hub.

This list covers petroleum refining equipment installation 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 15, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 15, 2026 86% judged on-target in blind review

784Companies

39,126Contacts tracked

10,064Verified emails

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The 25 largest petroleum refining equipment installation companies based in the United States

Ranked by team size

Top 25 of 784 petroleum refining equipment installation companies based in the United States, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to petroleum refining equipment installation companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Zachry Group	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 15, 2026	10001+	6,824 contacts →
	Indirect evidence “Zachry Group is North America's pacesetter in turnkey engineering, construction, maintenance, turnaround and fabrication services to the energy, chemicals, power, manufacturing…” Source: RevenueBase Database · checked Sep 15, 2026
2	Brown & Root Industrial Services, LLC	Indirect evidence	Baton Rouge, LA, United StatesHQ checked Sep 15, 2026	5,001-10,000	1,940 contacts →
	Indirect evidence “Brown & Root Industrial Services offers the full range of industrial services – engineering, construction, maintenance, turnaround, and specialty (painting, scaffolding…” Source: RevenueBase Database · checked Sep 15, 2026
3	Audubon Companies	Indirect evidence	Houston, TX, United StatesHQ checked Sep 15, 2026	1,001-5,000	1,488 contacts →
	Indirect evidence “Founded in 1997, Audubon Companies LLC provides EPC, consulting, fabrication, and field services to energy and industrial operators across the globe.” Source: RevenueBase Database · checked Sep 15, 2026
4	Repcon, INC	Indirect evidence	Baton Rouge, LA, United StatesHQ checked Sep 15, 2026	1,001-5,000	877 contacts →
	Indirect evidence “Repcon has earned a reputation for leading the industry in turnarounds, specialty welding, construction, pipe fabrication, and maintenance.” Source: RevenueBase Database · checked Sep 15, 2026
5	Wyatt Field Service Company	Indirect evidence	Houston, TX, United StatesHQ checked Sep 15, 2026	1,001-5,000	686 contacts →
	Indirect evidence “WYATT is recognized for executing complex maintenance, outage, turnaround, and capital construction projects across the Oil, Gas & Chemical, and Power markets.” Source: RevenueBase Database · checked Sep 15, 2026
6	The Mundy Companies	Indirect evidence	Houston, TX, United StatesHQ checked Sep 15, 2026	1,001-5,000	564 contacts →
	Indirect evidence “The Mundy Companies is a privately owned company headquartered in Houston, Texas with offices Pasadena, TX, Nederland, TX, and Wilmington, NC.” Source: RevenueBase Database · checked Sep 15, 2026
7	Arb, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 15, 2026	1,001-5,000	528 contacts →
	Indirect evidence “ARB Inc.” Source: RevenueBase Database · checked Sep 15, 2026
8	Richard	Partial evidence	Beaumont, TX, United StatesHQ checked Sep 15, 2026	1,001-5,000	501 contacts →
	Partial evidence “RICHARD is a full-service engineering, procurement and construction firm in the petrochemical and refining industry.” Source: RevenueBase Database · checked Sep 15, 2026
9	Matrix Service	Indirect evidence	Tulsa, OK, United StatesHQ checked Sep 15, 2026	1,001-5,000	492 contacts →
	Indirect evidence “Matrix Service is a subsidiary of Matrix Service Company (NASDAQ: MTRX).” Source: RevenueBase Database · checked Sep 15, 2026
10	Turn2 Specialty Companies	Partial evidence	Baytown, TX, United StatesHQ checked Sep 15, 2026	1,001-5,000	475 contacts →
	Partial evidence “Turn2 Specialty Companies is the premier provider of specialty turnaround services in the refining, petrochemical, and power industries.” Source: RevenueBase Database · checked Sep 15, 2026
11	Scmi INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 15, 2026	n/a	470 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026
12	CAM Industrial Solutions LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 15, 2026	5,001-10,000	434 contacts →
	Indirect evidence “With decades of refinery, petrochemical, fertilizer and power plant experience, CAM Industrial Solutions has become the standard in heavy industrial maintenance, turnaround and…” Source: RevenueBase Database · checked Sep 15, 2026
13	The Stronghold Companies	Indirect evidence	La Porte, TX, United StatesHQ checked Sep 15, 2026	5,001-10,000	419 contacts →
	Indirect evidence “As part of the Quanta Services Family of Companies (NYSE: PWR)- Stronghold provides the safest, leanest, most efficient, quality solutions for the refinery, petrochemical and…” Source: RevenueBase Database · checked Sep 15, 2026
14	Delta Constructors	Partial evidence	Anchorage, AK, United StatesHQ checked Sep 15, 2026	501-1,000	380 contacts →
	Partial evidence “We are a full-service construction and fabrication group serving industrial clients of all sizes in water, wastewater, petroleum, gas processing and energy projects.” Source: RevenueBase Database · checked Sep 15, 2026
15	Greenberry Industrial	Indirect evidence	Vancouver, WA, United StatesHQ checked Sep 15, 2026	1,001-5,000	380 contacts →
	Indirect evidence “Greenberry Industrial is an award-winning, full-service industrial contractor and fabricator serving high-tech, oil & gas, petrochemical, pulp & paper, power & energy, renewable…” Source: RevenueBase Database · checked Sep 15, 2026
16	Burrow Global, LLC	Indirect evidence	Beaumont, TX, United StatesHQ checked Sep 15, 2026	1,001-5,000	375 contacts →
	Indirect evidence “Burrow Global, LLC is a full service engineering, procurement, construction, and facility services firm with specialties in process automation, industrial buildings/architecture…” Source: RevenueBase Database · checked Sep 15, 2026
17	Lauren Services INC	Indirect evidence	Abilene, TX, United StatesHQ checked Sep 15, 2026	1,001-5,000	353 contacts →
	Indirect evidence “Lauren provides engineering, procurement and construction services throughout a variety of heavy-industrial markets, including Power Generation, Chemical/Process and Oil and Gas.” Source: RevenueBase Database · checked Sep 15, 2026
18	Cust-O-Fab	Strong evidence	Sand Springs, OK, United StatesHQ checked Sep 15, 2026	201-500	327 contacts →
	Strong evidence “Since 1972, CUST-O-FAB has maintained a reputation of consistently providing quality ASME Code fabricated equipment and on-site services for the refining, petrochemical, syngas…” Source: RevenueBase Database · checked Sep 15, 2026
19	GIS Engineering, LLC	Indirect evidence	Baton Rouge, LA, United StatesHQ checked Sep 15, 2026	1,001-5,000	322 contacts →
	Indirect evidence “The GIS Industrial Engineering & Construction team offers clients a single point of contact to utilize our 19 strategically located facilities, employees, and 21 service lines.” Source: RevenueBase Database · checked Sep 15, 2026
20	C&i Engineering	Indirect evidence	Louisville, KY, United StatesHQ checked Sep 15, 2026	201-500	313 contacts →
	Indirect evidence “Chemical & Industrial Engineering, Inc.(C&I) is a full-service Engineering, Design & Procurement firm, providing hands-on design expertise for increasing capacity, improving…” Source: RevenueBase Database · checked Sep 15, 2026
21	The Roberts Company	Indirect evidence	Winterville, NC, United StatesHQ checked Sep 15, 2026	501-1,000	305 contacts →
	Indirect evidence “Founded in 1977 as The Roberts Company, Roberts has grown from a small contractor to a large full service constructor and fabricator.” Source: RevenueBase Database · checked Sep 15, 2026
22	Echo Maintenance LLC	Indirect evidence	Nederland, TX, United StatesHQ checked Sep 15, 2026	1,001-5,000	301 contacts →
	Indirect evidence “Echo Maintenance is a full-service industrial general contractor providing diverse support for maintenance, capital projects and turnarounds to petrochemical and chemical…” Source: RevenueBase Database · checked Sep 15, 2026
23	UPS Industrial Services, LLC	Indirect evidence	Deer Park, TX, United StatesHQ checked Sep 15, 2026	5,001-10,000	297 contacts →
	Indirect evidence “UPS Industrial Services delivers high-performance mechanical and construction solutions for demanding industrial and technology environments.” Source: RevenueBase Database · checked Sep 15, 2026
24	Samuel Engineering, INC	Indirect evidence	Greenwood Village, CO, United StatesHQ checked Sep 15, 2026	201-500	293 contacts →
	Indirect evidence “Samuel is a multi-discipline engineering, procurement, fabrication, and construction company.” Source: RevenueBase Database · checked Sep 15, 2026
25	B&e Resources, LLC	Indirect evidence	Beaumont, TX, United StatesHQ checked Sep 15, 2026	501-1,000	286 contacts →
	Indirect evidence “B&E Resources is an oil field service company specializing in industrial construction and custom fabrication.” Source: RevenueBase Database · checked Sep 15, 2026

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: petroleum refining equipment installation 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 petroleum refining equipment installation companies.
Partial evidence: Its own public description names part of petroleum refining equipment installation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name petroleum refining equipment installation 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 784 petroleum refining equipment installation companies based in the United States

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Petroleum refining equipment installation companies based in the United States at a glance

As of Sep 15, 2026

25.7%Verified-email coverage

49.9Average contacts per company

11-50Median size (employees)

13.3%Largest-city concentration · Houston

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

169

11-50

272

51-200

192

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 784 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 petroleum refining equipment installation 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 “petroleum refining equipment installation 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 petroleum refining equipment installation 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 petroleum refining equipment installation 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, 10,064 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 15, 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.

Petroleum refining equipment installation companies by metro

Petroleum refining equipment installation companies in Houston104

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 petroleum refining equipment installation 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 petroleum refining equipment installation companies are there based in the United States?

RevenueBase identified 784 petroleum refining equipment installation 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?

Zachry Group, headquartered in San Antonio, tops this list with the largest team on record.

Which city has the most petroleum refining equipment installation companies?

Houston leads with 104 headquartered companies, followed by Tulsa (22) and Baton Rouge (13).

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 10,064 verified decision-maker contacts tracked across these 784 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 15, 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.