Company lists · Data refreshed November 2026

Top 25 Process equipment installation contractors based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 2,566 companies tracked

RevenueBase identified 2,566 company matches for process equipment installation contractors associated with the United States as of November 2026 and tracks 94,444 professional contacts across them, including 34,560 with verified work emails. Houston is the largest hub.

This list covers company matches for process equipment installation contractors 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 November 6, 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 Nov 6, 2026 How this list was built

2,566Companies

94,444Contacts tracked

34,560Verified emails

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

The 25 largest process equipment installation contractors based in the United States

Ranked by team size

Top 25 of 2,566 company matches for process equipment installation contractors based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Zachry Group	Exact match	San Antonio, TX, United StatesHQ recorded Nov 6, 2026	10001+	7,226 contacts →
	Exact match “Zachry Group is North America's pacesetter in turnkey engineering, construction, maintenance, turnaround and fabrication services to the energy, chemicals, power, manufacturing…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Acco Engineered Systems	Exact match	Pasadena, CA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	2,633 contacts →
	Exact match “Since 1934, owners and builders have selected ACCO Engineered Systems to design, install, and maintain more than mechanical projects.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Brown & Root Industrial Services, LLC	Exact match	Baton Rouge, LA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	2,075 contacts →
	Exact match “Brown & Root Industrial Services offers the full range of industrial services – engineering, construction, maintenance, turnaround, and specialty (painting, scaffolding…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Audubon Companies	Exact match	Houston, LA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,699 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 · Nov 6, 2026 · View company records in RevenueBase
5	Comfort Systems USA	Exact match	Houston, IN, United StatesHQ recorded Nov 6, 2026	10001+	1,407 contacts →
	Exact match “Comfort Systems USA \| Quality People.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Mckenney's, INC	Exact match	Atlanta, NC, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,143 contacts →
	Exact match “McKenney’s is the Southeast’s most trusted name in facility construction, operation and maintenance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Harris	Exact match	St. Paul, ID, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,055 contacts →
	Exact match “Harris is a leading national mechanical contractor specializing in design and engineering, construction, controls, service, manufacturing, conveyors and end-to-end building…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Cmta, INC	Exact match	Louisville, TN, United StatesHQ recorded Nov 6, 2026	501-1,000	1,049 contacts →
	Exact match “CMTA is part of Legence, a Nasdaq Listed company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Starcon International, INC	Exact match	La Porte, KY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	943 contacts →
	Exact match “Starcon is a national, full-service contractor offering comprehensive industrial and mechanical services in the oil & gas/refining, chemical/petrochemical, natural gas processing…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Loenbro	Exact match	Westminster, CO, United StatesHQ recorded Nov 6, 2026	1,001-5,000	777 contacts →
	Exact match “Loenbro is a trusted, long-term construction lifecycle partner to thousands of customers across the U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Wyatt Field Service Company	Exact match	Houston, LA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	736 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 · Nov 6, 2026 · View company records in RevenueBase
12	Baker Group	Exact match	Ankeny, IA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	731 contacts →
	Exact match “Established in 1963, Baker Group is Iowa’s premier full-service specialty contractor-serving commercial, industrial, institutional, and mission-critical markets across the country.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Apollo Mechanical Contractors	Exact match	Kennewick, WA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	730 contacts →
	Exact match “Apollo is based in Kennewick, Washington, performing Full Mechanical projects across the United States and around the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Lexicon, INC	Exact match	Little Rock, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	610 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	F.E. Moran Group Of Companies	Exact match	Northbrook, IL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	606 contacts →
	Exact match “At F.E.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Southern Industrial Constructors, INC	Exact match	Raleigh, TN, United StatesHQ recorded Nov 6, 2026	1,001-5,000	606 contacts →
	Exact match “Since 1962, Southern Industrial Constructors, Inc.(SIC) has been safely and cost effectively providing industrial construction services to the manufacturing, process and power…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Murray Company	Exact match	Rancho Dominguez, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	604 contacts →
	Exact match “Proven experience in conjunction with fully-equipped fabrication facilities and extensive engineering expertise.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	W-Industries	Exact match	Houston, LA, United StatesHQ recorded Nov 6, 2026	501-1,000	583 contacts →
	Exact match “Our expertise encompasses the full spectrum of system technologies from pneumatic - hydraulic control systems to state of the art programmable solutions to chemical injection…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	The State Group	Exact match	Franklin, NY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	555 contacts →
	Exact match “The State Group is one of North America's leading multi-trade industrial and specialty services contractors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Deem, LLC	Exact match	Indianapolis, IN, United StatesHQ recorded Nov 6, 2026	1,001-5,000	553 contacts →
	Exact match “DEEM, LLC is a mechanical and electrical company centrally located in Fishers, Indiana with satellite offices throughout the Midwest down to the southeastern United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Ardent Services, LLC	Exact match	Covington, LA, United StatesHQ recorded Nov 6, 2026	51-200	497 contacts →
	Exact match “Ardent Services, LLC (Ardent) is a leading provider of high-quality power, control, process-automation, and electrical and instrumentation (E&I) services for process industries…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Kinetics	Exact match	Livermore, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	491 contacts →
	Exact match “Founded in 1973, Kinetics is a full-service process and mechanical contractor specializing in the design and installation of process, mechanical, plumbing and HVAC systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Atlantic Constructors, INC	Exact match	Richmond, VA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	479 contacts →
	Exact match “As a member of the TriplePoint Family of Companies, ACI plays a vital role as part of TriplePoint's platform that is enabling what comes next all across the country.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Pacific RIM Mechanical	Exact match	San Diego, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	450 contacts →
	Exact match “At Pacific Rim Mechanical, we deliver comprehensive mechanical contracting and facility services across Southern California.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	John W. Danforth Company	Exact match	Tonawanda, NY, United StatesHQ recorded Nov 6, 2026	501-1,000	420 contacts →
	Exact match “We are powered by the best people in the industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “process equipment installation contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 2,566 process equipment installation contractors based in the United States

See the full list, filter by size, metro and specialty, and access 34,560 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Process equipment installation contractors based in the United States at a glance

As of Nov 6, 2026

36.6%Verified-email coverage

36.8Average contacts per company

11-50Median size (employees)

2.7%Largest-city concentration · Houston

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

607

11-50

881

51-200

747

201-500

204

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 2,566 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 “process equipment installation 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 34,560 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 November 6, 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.

Process equipment installation contractors by metro

Process equipment installation contractors in Houston70

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 “process equipment installation contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many process equipment installation contractors are there based in the United States?

RevenueBase identified 2,566 company matches for process equipment installation contractors associated with the United States as of November 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?

Zachry Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most process equipment installation contractors?

Houston leads with 70 company records, followed by Indianapolis (24) and Phoenix (24).

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 34,560 professional contacts with verified work emails tracked across these 2,566 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 November 6, 2026.

Ready to reach these companies? Verified emails and direct dials for all 2,566 process equipment installation contractors based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Process equipment installation contractors by geography

Browse the directory

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.