Company lists · Data refreshed September 2026

Top 25 Petrochemical plant builders based in the United States

Name: Petrochemical plant builders based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 497 companies tracked

RevenueBase identified 497 petrochemical plant builders headquartered in the United States as of September 2026 and tracks 103,664 professional contacts across them, including 27,153 with verified work emails. Houston is the largest hub.

This list covers petrochemical plant builders 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 17, 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 17, 2026 86% judged on-target in blind review

497Companies

103,664Contacts tracked

27,153Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest petrochemical plant builders based in the United States

Ranked by team size

Top 25 of 497 petrochemical plant builders based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to petrochemical plant builders: 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	Fluor Corporation	Indirect evidence	Irving, TX, United StatesHQ checked Sep 17, 2026	10001+	33,084 contacts →
	Indirect evidence “Fluor Corporation is a global engineering, procurement and construction company.” Source: RevenueBase Database · checked Sep 17, 2026
2	Mcdermott International, LTD	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	10001+	20,135 contacts →
	Indirect evidence “McDermott is a premier provider of engineering and construction solutions to the energy industry.” Source: RevenueBase Database · checked Sep 17, 2026
3	Zachry Group	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 17, 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 17, 2026
4	S&b	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	5,001-10,000	3,510 contacts →
	Indirect evidence “S&B is an engineer and constructor that designs and builds some of the largest and most complex industrial facilities in the world.” Source: RevenueBase Database · checked Sep 17, 2026
5	Michels Corporation	Indirect evidence	Brownsville, WI, United StatesHQ checked Sep 17, 2026	10001+	2,339 contacts →
	Indirect evidence “Established in 1959 in Brownsville, WI, Michels is an international leader in energy and infrastructure construction.” Source: RevenueBase Database · checked Sep 17, 2026
6	The Haskell Company	Indirect evidence	Jacksonville, FL, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,213 contacts →
	Indirect evidence “Haskell delivers over $3 billion annually in Architecture, Engineering, Construction (AEC) and Consulting solutions to assure certainty of outcome for complex capital projects…” Source: RevenueBase Database · checked Sep 17, 2026
7	Brown & Root Industrial Services, LLC	Indirect evidence	Baton Rouge, LA, United StatesHQ checked Sep 17, 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 17, 2026
8	Hargrove Engineers & Constructors	Indirect evidence	Mobile, AL, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,877 contacts →
	Indirect evidence “Hargrove is a full-service engineering, procurement, and construction management firm delivering multi-discipline engineering, project delivery, controls & automation, and…” Source: RevenueBase Database · checked Sep 17, 2026
9	Austin Industrial, INC	Indirect evidence	La Porte, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,649 contacts →
	Indirect evidence “Austin Industrial delivers premier maintenance, construction, and soft craft services to the nation’s leading producers of oil, gas & chemicals; energy; and manufactured goods.” Source: RevenueBase Database · checked Sep 17, 2026
10	Audubon Companies	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 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 17, 2026
11	Bilfinger North America	Indirect evidence	The Woodlands, TX, United StatesHQ checked Sep 17, 2026	10001+	1,400 contacts →
	Indirect evidence “As a leading construction and maintenance provider, Bilfinger aims to enhance the efficiency of assets and lower operational costs.” Source: RevenueBase Database · checked Sep 17, 2026
12	Saulsbury	Indirect evidence	Odessa, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,130 contacts →
	Indirect evidence “Saulsbury Industries is a full-service Engineering Procurement and Construction (EPC) contractor that provides engineering, general construction, electrical & instrumentation…” Source: RevenueBase Database · checked Sep 17, 2026
13	Gulf Companies	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,046 contacts →
	Indirect evidence “At Gulf Companies, we are driven by our mission to serve a vital role in the global energy industry.” Source: RevenueBase Database · checked Sep 17, 2026
14	Percheron, LLC	Indirect evidence	Katy, TX, United StatesHQ checked Sep 17, 2026	501-1,000	776 contacts →
	Indirect evidence “Percheron streamlines energy infrastructure projects through a comprehensive EPCM (Engineering, Procurement, Construction Management) approach.” Source: RevenueBase Database · checked Sep 17, 2026
15	Vepica	Partial evidence	Katy, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	680 contacts →
	Partial evidence “Vepica is a multinational engineering company with more than 53 years experience in the energy, industrial, infrastructure and petrochemical sectors.” Source: RevenueBase Database · checked Sep 17, 2026
16	Dynamic Industries, INC	Indirect evidence	New Orleans, LA, United StatesHQ checked Sep 17, 2026	1,001-5,000	567 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
17	Bmwc Constructors	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 17, 2026	1,001-5,000	558 contacts →
	Indirect evidence “BMWC tackles the world’s toughest, most daunting industrial construction challenges.” Source: RevenueBase Database · checked Sep 17, 2026
18	Arb, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	528 contacts →
	Indirect evidence “ARB Inc.” Source: RevenueBase Database · checked Sep 17, 2026
19	Richard	Partial evidence	Beaumont, TX, United StatesHQ checked Sep 17, 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 17, 2026
20	Matrix Service	Indirect evidence	Tulsa, OK, United StatesHQ checked Sep 17, 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 17, 2026
21	Campos EPC	Indirect evidence	Denver, CO, United StatesHQ checked Sep 17, 2026	501-1,000	471 contacts →
	Indirect evidence “Campos EPC (CEPC) is headquartered in Denver, Colorado with offices covering all regions of the United States.” Source: RevenueBase Database · checked Sep 17, 2026
22	Scmi INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	n/a	470 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
23	Optimized Process Designs LLC	Indirect evidence	Katy, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	424 contacts →
	Indirect evidence “Established in 1980, Optimized Process Designs LLC (OPD) provides clients with detailed engineering packages in all disciplines, single-point procurement for all equipment and…” Source: RevenueBase Database · checked Sep 17, 2026
24	Recon Management Services, INC	Indirect evidence	Sulphur, LA, United StatesHQ checked Sep 17, 2026	501-1,000	420 contacts →
	Indirect evidence “ReCon was established in 1995 and has matured as a high quality and competitive engineering consulting firm providing engineering design and project management services to the…” Source: RevenueBase Database · checked Sep 17, 2026
25	Delta Constructors	Indirect evidence	Anchorage, AK, United StatesHQ checked Sep 17, 2026	501-1,000	380 contacts →
	Indirect 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 17, 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: petrochemical plant builders. 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 petrochemical plant builders.
Partial evidence: Its own public description names part of petrochemical plant builders, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name petrochemical plant builders. 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 497 petrochemical plant builders based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 27,153 reachable decision-makers.

Free signup · no credit card

View the full list →

Petrochemical plant builders based in the United States at a glance

As of Sep 17, 2026

26.2%Verified-email coverage

208.6Average contacts per company

51-200Median size (employees)

14.7%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

149

51-200

136

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 497 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 petrochemical plant builders, 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 “petrochemical plant builders”. 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 petrochemical plant builders), 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 petrochemical plant builders, 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, 27,153 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 17, 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.

Petrochemical plant builders by metro

Petrochemical plant builders in Houston73

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 petrochemical plant builders, 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 petrochemical plant builders are there based in the United States?

RevenueBase identified 497 petrochemical plant builders 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?

Fluor Corporation, headquartered in Irving, tops this list with the largest team on record.

Which city has the most petrochemical plant builders?

Houston leads with 73 headquartered companies, followed by Tulsa (14) and Midland (11).

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 27,153 verified decision-maker contacts tracked across these 497 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 17, 2026.

Ready to reach these companies? Verified emails and direct dials for all 497 petrochemical plant builders based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Petrochemical plant builders by geography

Browse the directory

Browse: Companies home · All United States lists · All Petrochemical plant builders lists · New 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 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.