Company lists · Data refreshed September 2026

Top 25 Energy infrastructure consulting firms based in Houston, United States

Name: Energy infrastructure consulting firms based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 513 companies tracked

RevenueBase identified 513 energy infrastructure consulting firms headquartered in Houston, United States as of September 2026 and tracks 39,117 professional contacts across them, including 12,269 with verified work emails. Houston is the largest hub.

This list covers energy infrastructure consulting firms headquartered in Houston, 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 21, 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 21, 2026 86% judged on-target in blind review

513Companies

39,117Contacts tracked

12,269Verified emails

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The 25 largest energy infrastructure consulting firms based in Houston, United States

Ranked by team size

Top 25 of 513 energy infrastructure consulting firms based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to energy infrastructure consulting firms: 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 21, 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 21, 2026
2	LJA	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,932 contacts →
	Indirect evidence “Employee-Owned.” Source: RevenueBase Database · checked Sep 21, 2026
3	Audubon Companies	Strong evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,488 contacts →
	Strong 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 21, 2026
4	Gulf Companies	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,046 contacts →
	Partial 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 21, 2026
5	Dashiell Corporation	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 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 21, 2026
6	Capco Energy	Strong evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	715 contacts →
	Strong evidence “For 25 years Capco’s Energy practice has combined innovative thinking with deep industry knowledge to provide business consulting, digital transformation and technology services…” Source: RevenueBase Database · checked Sep 21, 2026
7	Willbros	Strong evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	10001+	665 contacts →
	Strong evidence “Primoris is a specialty energy infrastructure contractor serving the oil and gas and power industries with offerings that primarily include construction, maintenance and…” Source: RevenueBase Database · checked Sep 21, 2026
8	Cobb, Fendley & Associates, INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	501-1,000	524 contacts →
	Partial evidence “Cobb, Fendley & Associates, Inc.(CobbFendley) is a nationally recognized infrastructure solutions firm with a regional focus and a commitment to excellence.” Source: RevenueBase Database · checked Sep 21, 2026
9	Saber Power	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	521 contacts →
	Indirect evidence “Saber Power Services, a portfolio company of Greenbelt Capital Partners, is a fully integrated electrical power system services firm providing end-to-end solutions across utility…” Source: RevenueBase Database · checked Sep 21, 2026
10	Scmi INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	n/a	470 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
11	Lockwood, Andrews & Newnam, Inc. LAN	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	201-500	461 contacts →
	Partial evidence “Lockwood, Andrews & Newnam, Inc.(LAN) is a full-service consulting firm offering planning, engineering and program management services.” Source: RevenueBase Database · checked Sep 21, 2026
12	Signal Energy	Strong evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	1,001-5,000	409 contacts →
	Strong evidence “Signal Energy is a leading full service design/build contractor providing Engineering, Procurement, and Construction (EPC) services for renewable energy & infrastructure projects.” Source: RevenueBase Database · checked Sep 21, 2026
13	E Source	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	201-500	377 contacts →
	Partial evidence “For decades, E Source has been a trusted partner to utilities navigating an evolving energy landscape.” Source: RevenueBase Database · checked Sep 21, 2026
14	ARION	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	201-500	310 contacts →
	Partial evidence “We are A-Team of engineers specializing in the energy industry.” Source: RevenueBase Database · checked Sep 21, 2026
15	Gate Energy Project Delivery	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	201-500	189 contacts →
	Partial evidence “GATE Energy, a 100% employee-owned ESOP, provides predictable project delivery services to the energy sector.” Source: RevenueBase Database · checked Sep 21, 2026
16	Expanse Electrical CO	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	501-1,000	188 contacts →
	Partial evidence “Expanse Electrical Company is a premier provider of integrated electrical infrastructure, instrumentation and automation system solutions.” Source: RevenueBase Database · checked Sep 21, 2026
17	Zentech Incorporated	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	51-200	181 contacts →
	Partial evidence “Zentech, Inc, an engineering consulting and software development company, headquartered in Houston, TX, is comprised of experienced professionals specializing in providing…” Source: RevenueBase Database · checked Sep 21, 2026
18	CAM Integrated Solutions	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	201-500	172 contacts →
	Partial evidence “CAM Integrated Solutions (“CAM”) is a full-service energy solutions provider uniquely situated for the Upstream and Midstream markets.” Source: RevenueBase Database · checked Sep 21, 2026
19	Tph&co	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	201-500	171 contacts →
	Partial evidence “TPH & Co, the energy business of Perella Weinberg, provides strategic and financial advice to investors, management teams, boards of directors, government bodies, and other…” Source: RevenueBase Database · checked Sep 21, 2026
20	ARM Energy	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	51-200	157 contacts →
	Partial evidence “ARM Energy is headquartered in Houston, TX, with offices in Calgary, Denver, Los Angeles, and Nashville.” Source: RevenueBase Database · checked Sep 21, 2026
21	Kenmor Electric Company	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	201-500	152 contacts →
	Indirect evidence “KenMor Electric is recognized for its service and craftsmanship.” Source: RevenueBase Database · checked Sep 21, 2026
22	Ceis Critical Energy Infrastructure Services	Strong evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	201-500	145 contacts →
	Strong evidence “Critical Energy Infrastructure Services (CEIS) is a nationally recognized leader in delivering strategic project solutions that support America’s energy infrastructure and…” Source: RevenueBase Database · checked Sep 21, 2026
23	Shah Smith & Associates, INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	51-200	134 contacts →
	Partial evidence “Shah Smith & Associates, Inc.(SSA) is a 120+ employee Mechanical, Electrical, and Plumbing (MEP) consulting engineering firm with offices in Houston, Austin & Dallas.” Source: RevenueBase Database · checked Sep 21, 2026
24	Holloman Corporation	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	501-1,000	125 contacts →
	Partial evidence “Holloman Corporation is an Engineering, Procurement, and Construction company with capabilities to design, build, and service energy-related projects on a global level.” Source: RevenueBase Database · checked Sep 21, 2026
25	Perc Engineering	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	51-200	124 contacts →
	Partial evidence “PERC Engineering is a full-service engineering & project management firm in the oil & gas energy sector.” Source: RevenueBase Database · checked Sep 21, 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: energy infrastructure consulting firms. 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 energy infrastructure consulting firms.
Partial evidence: Its own public description names part of energy infrastructure consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy infrastructure consulting firms. 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 513 energy infrastructure consulting firms based in Houston, United States

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Energy infrastructure consulting firms based in Houston, United States at a glance

As of Sep 21, 2026

31.4%Verified-email coverage

76.3Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Houston

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

247

11-50

173

51-200

201-500

501-1,000

1,001-5,000

10001+

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 513 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 energy infrastructure consulting firms, 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 Houston, United States whose own description of what they do matches “energy infrastructure consulting firms”. 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 energy infrastructure consulting firms), 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 energy infrastructure consulting firms, and records with no verified work email. Companies headquartered outside Houston 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, 12,269 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 21, 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.

Energy infrastructure consulting firms by metro in the United States

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 energy infrastructure consulting firms, 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 energy infrastructure consulting firms are there based in Houston, United States?

RevenueBase identified 513 energy infrastructure consulting firms headquartered in Houston, 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 energy infrastructure consulting firms?

Houston leads with 513 headquartered companies, followed by New York (174) and Denver (102).

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 12,269 verified decision-maker contacts tracked across these 513 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 21, 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.