Company lists · Data refreshed September 2026

Top 25 Power plant construction companies based in the United States

Name: Power plant construction 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 17, 2026 260 companies tracked

RevenueBase identified 260 power plant construction companies headquartered in the United States as of September 2026 and tracks 47,946 professional contacts across them, including 13,485 with verified work emails. Houston is the largest hub.

This list covers power plant construction 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 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

260Companies

47,946Contacts tracked

13,485Verified emails

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The 25 largest power plant construction companies based in the United States

Ranked by team size

Top 25 of 260 power plant construction companies 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 power plant construction 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	Mcdermott International, LTD	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	10001+	20,135 contacts →
	Partial evidence “McDermott is a premier provider of engineering and construction solutions to the energy industry.” Source: RevenueBase Database · checked Sep 17, 2026
2	Fieldcore	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 17, 2026	10001+	3,700 contacts →
	Partial evidence “GE Vernova is a planned, purpose-built global energy company that includes Power, Wind, and Electrification businesses and is supported by its accelerator businesses of Advanced…” Source: RevenueBase Database · checked Sep 17, 2026
3	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
4	FTI	Partial evidence	Menasha, WI, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,741 contacts →
	Partial evidence “Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Source: RevenueBase Database · checked Sep 17, 2026
5	NAES	Partial evidence	Issaquah, WA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,956 contacts →
	Partial evidence “NAES is the power generation industry’s largest independent services provider, with more than 40 years of experience managing risk and turning it into profits.” Source: RevenueBase Database · checked Sep 17, 2026
6	PIC Group, INC	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 17, 2026	201-500	1,107 contacts →
	Partial evidence “PIC Group, Inc, established in 1988 and headquartered in Atlanta, GA, is a global provider of service solutions to the power generation industry.” Source: RevenueBase Database · checked Sep 17, 2026
7	Dashiell Corporation	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	940 contacts →
	Partial evidence “Dashiell is a leading national provider of technical services to the electric utility, power generation, industrial, renewable and energy industries.” Source: RevenueBase Database · checked Sep 17, 2026
8	Wanzek Construction, Inc., A Mastec Company	Partial evidence	Fargo, ND, United StatesHQ checked Sep 17, 2026	1,001-5,000	933 contacts →
	Partial evidence “Wanzek Construction, Inc, a MasTec Renewables company, is a leading general construction contractor and clean energy services company headquartered in Fargo, North Dakota.” Source: RevenueBase Database · checked Sep 17, 2026
9	Proenergy	Indirect evidence	Sedalia, MO, United StatesHQ checked Sep 17, 2026	501-1,000	749 contacts →
	Indirect evidence “PROENERGY is an engineering, R&D, and manufacturing powerhouse.” Source: RevenueBase Database · checked Sep 17, 2026
10	Brahma Group, INC	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 17, 2026	1,001-5,000	581 contacts →
	Partial evidence “Brahma Group, Inc.(Brahma) is a full service project management and industrial construction company, with active projects nationwide.” Source: RevenueBase Database · checked Sep 17, 2026
11	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
12	APR Energy	Indirect evidence	Jacksonville, FL, United StatesHQ checked Sep 17, 2026	201-500	502 contacts →
	Indirect evidence “APR Energy delivers reliable electricity, fast.” Source: RevenueBase Database · checked Sep 17, 2026
13	EC Electric	Partial evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	1,001-5,000	490 contacts →
	Partial evidence “Our lives function on a power grid.” Source: RevenueBase Database · checked Sep 17, 2026
14	Babcock Power	Partial evidence	Danvers, MA, United StatesHQ checked Sep 17, 2026	501-1,000	476 contacts →
	Partial evidence “Finding a single capable partner to support both large- and small-scale power generation needs can be challenging.” Source: RevenueBase Database · checked Sep 17, 2026
15	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
16	Hooper	Partial evidence	De Forest, WI, United StatesHQ checked Sep 17, 2026	501-1,000	370 contacts →
	Partial evidence “Hooper Corporation is your full-service electric power and mechanical contractor.” Source: RevenueBase Database · checked Sep 17, 2026
17	Gemma Power Systems	Strong evidence	Glastonbury, CT, United StatesHQ checked Sep 17, 2026	51-200	353 contacts →
	Strong evidence “Gemma Power Systems, a wholly owned subsidiary of Argan Inc.(NYSE: AGX), is a leading Engineering, Procurement and Construction (EPC) company providing innovative solutions for…” Source: RevenueBase Database · checked Sep 17, 2026
18	Infrastructure And Energy Alternatives, Inc. IEA , A Mastec Company	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 17, 2026	5,001-10,000	318 contacts →
	Partial evidence “Infrastructure & Energy Alternatives (IEA), a MasTec company, was formed in 2011 and began building an integrated portfolio of energy and infrastructure construction companies.” Source: RevenueBase Database · checked Sep 17, 2026
19	Asplundh Engineering Services	Indirect evidence	Willow Grove, PA, United StatesHQ checked Sep 17, 2026	1,001-5,000	284 contacts →
	Indirect evidence “Asplundh Engineering Services leverages more than 100 years of experience to provide a superior, single-point solution for engineering, design and testing services to…” Source: RevenueBase Database · checked Sep 17, 2026
20	Evs, INC	Partial evidence	Eden Prairie, MN, United StatesHQ checked Sep 17, 2026	201-500	258 contacts →
	Partial evidence “Founded in 1979, EVS is cultivating a sustainable future through quality engineering solutions for utility-scale solar plants, substations, and energy storage facilities.” Source: RevenueBase Database · checked Sep 17, 2026
21	TEIC	Partial evidence	Duncan, SC, United StatesHQ checked Sep 17, 2026	51-200	252 contacts →
	Partial evidence “Serving Energy Utilities, Renewable Power providers, and Industrial Manufacturing leaders.” Source: RevenueBase Database · checked Sep 17, 2026
22	IEA Constructors Llc, A Mastec Company	Indirect evidence	Indianapolis, IN, United StatesHQ checked Sep 17, 2026	1,001-5,000	241 contacts →
	Indirect evidence “IEA Constructors, a MasTec company, has grown tremendously to become the contractor of choice for utility-scale energy and heavy civil infrastructure projects.” Source: RevenueBase Database · checked Sep 17, 2026
23	APM	Strong evidence	Pasadena, TX, United StatesHQ checked Sep 17, 2026	5,001-10,000	215 contacts →
	Strong evidence “Empowering the People Who Power Life Safety \| Quality \| Integrity APM has your construction and maintenance solutions.” Source: RevenueBase Database · checked Sep 17, 2026
24	Bond Civil & Utility Construction	Strong evidence	Medford, MA, United StatesHQ checked Sep 17, 2026	501-1,000	200 contacts →
	Strong evidence “BOND Civil & Utility is a premier full-service construction management and self-performing general contractor working within the power, energy and infrastructure markets.” Source: RevenueBase Database · checked Sep 17, 2026
25	United Engineers & Constructors An Aecon Company	Partial evidence	Mount Laurel, NJ, United StatesHQ checked Sep 17, 2026	201-500	187 contacts →
	Partial evidence “United Engineers & Constructors is an industry-leading infrastructure engineering, procurement, construction, and consulting company dedicated to improving lives by delivering the…” 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: power plant construction 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 power plant construction companies.
Partial evidence: Its own public description names part of power plant construction companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name power plant construction 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 260 power plant construction companies based in the United States

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Power plant construction companies based in the United States at a glance

As of Sep 17, 2026

28.1%Verified-email coverage

184.4Average contacts per company

11-50Median size (employees)

5.8%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 260 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 power plant construction 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 “power plant construction 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 power plant construction 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 power plant construction 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, 13,485 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.

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 power plant construction 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 power plant construction companies are there based in the United States?

RevenueBase identified 260 power plant construction 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?

Mcdermott International, LTD, headquartered in Houston, tops this list with the largest team on record.

Which city has the most power plant construction companies?

Houston leads with 15 headquartered companies, followed by Chattanooga (3) and Flowood (3).

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 13,485 verified decision-maker contacts tracked across these 260 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.

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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.