Company lists · Data refreshed September 2026

Top 25 Energy engineering consulting companies based in Houston, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 227 companies tracked

RevenueBase identified 227 company matches for energy engineering consulting companies associated with Houston, United States as of September 2026 and tracks 28,483 professional contacts across them, including 7,417 with verified work emails. Across the United States, Houston is the largest hub for this category.

This list covers company matches for energy engineering consulting companies associated with Houston, 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 September 16, 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 Sep 16, 2026 How this list was built

227Companies

28,483Contacts tracked

7,417Verified emails

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The 25 largest energy engineering consulting companies based in Houston, United States

Ranked by team size

Top 25 of 227 company matches for energy engineering consulting companies based in Houston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 16, 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	Mcdermott International, LTD	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	10001+	20,135 contacts →
	Exact match “McDermott is a premier provider of engineering and construction solutions to the energy industry.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
2	Audubon Companies	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	1,001-5,000	1,488 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 · Sep 16, 2026 · View company records in RevenueBase
3	Gulf Companies	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	1,001-5,000	1,046 contacts →
	Exact match “At Gulf Companies, we are driven by our mission to serve a vital role in the global energy industry.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
4	Scmi INC	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	n/a	470 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
5	ARION	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	201-500	310 contacts →
	Exact match “We are A-Team of engineers specializing in the energy industry.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
6	Zentech Incorporated	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	51-200	181 contacts →
	Exact match “Zentech, Inc, an engineering consulting and software development company, headquartered in Houston, TX, is comprised of experienced professionals specializing in providing…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
7	Ceis Critical Energy Infrastructure Services	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	201-500	145 contacts →
	Exact match “Critical Energy Infrastructure Services (CEIS) is a nationally recognized leader in delivering strategic project solutions that support America’s energy infrastructure and…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
8	Shah Smith & Associates, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	51-200	134 contacts →
	Exact match “Shah Smith & Associates, Inc.(SSA) is a 120+ employee Mechanical, Electrical, and Plumbing (MEP) consulting engineering firm with offices in Houston, Austin & Dallas.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
9	Holloman Corporation	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	501-1,000	125 contacts →
	Exact match “Holloman Corporation is an Engineering, Procurement, and Construction company with capabilities to design, build, and service energy-related projects on a global level.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
10	Perc Engineering	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	51-200	124 contacts →
	Exact match “PERC Engineering is a full-service engineering & project management firm in the oil & gas energy sector.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
11	E'kabel	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	51-200	96 contacts →
	Exact match “At E’kabel, we design and implement solutions that drive efficiency, sustainability, and performance across energy operations.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
12	BD Energy Systems, LLC	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	51-200	65 contacts →
	Exact match “BD Energy Systems LLC located in Houston, TX, USA is a world leading engineering company operating in the Petrochemical, Fertilizer, Refining, and Gas Processing industry…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
13	RPT Alliance LLC	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	11-50	43 contacts →
	Exact match “As of December 8, 2025, RTP Alliance has been acquired by by Bowman.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
14	TKE Engineering & Design	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	11-50	39 contacts →
	Exact match “Who We Are TKE was founded in Houston, Texas in 1992 by Terry Eleiott, PE and his wife Kathy Eleiott.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
15	Ch-Iv International	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	11-50	32 contacts →
	Exact match “As an extension of the Owner's team, we support Project Development and Asset Life Extensions through decades of experience and deep industry expertise.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
16	4j Energy, LLC	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	11-50	27 contacts →
	Exact match “Solutions for complex logistics - Energy Marketing and Consulting \| Energy markets have experienced unprecedented volatility in recent years.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
17	Veritas Total Solutions	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	11-50	25 contacts →
	Exact match “Veritas is a full-service, energy consulting firm.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
18	Acclaim Energy	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	11-50	22 contacts →
	Exact match “For 19 years, Acclaim Energy has been successfully advising Hospitals, Businesses, Government entities, and Schools to address their most critical energy issues such as…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
19	CFI Companies, INC	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	11-50	21 contacts →
	Exact match “Established in 2012, CFI Companies is a consulting engineering firm that provides mechanical, electrical, plumbing and low voltage engineering design services as well as…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
20	Sunshine Renewable Solutions	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	11-50	21 contacts →
	Exact match “Texas' first NABCEP Accredited PV Installation Company • NABCEP Certified PV Installation Professional # PV-102117-017952 Sunshine Renewable Solutions was established to address…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
21	Ascent Engineering INC	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	11-50	20 contacts →
	Exact match “Ascent Engineering, Inc.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
22	Symbio Energy Partners	Exact match	Houston, United StatesHQ recorded Sep 16, 2026	11-50	20 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
23	SIA Solutions, LLC	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	51-200	19 contacts →
	Exact match “SIA Solutions LLC (SIA) has merged with Salas O'Brien and continues to focus on program and project-specific engineering and technical solutions in Environmental Consulting…” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
24	E4a Solutions, LLC	Exact match	Houston, TX, United StatesHQ recorded Sep 16, 2026	11-50	19 contacts →
	Exact match “E4A Solutions delivers comprehensive power plant and substation services, specializing in high-voltage EPC projects, equipment installation, and advanced maintenance programs.” Recorded in the RevenueBase company graph · Sep 16, 2026 · View company records in RevenueBase
25	DRL Engineering	Exact match	Houston, United StatesHQ recorded Sep 16, 2026	51-200	18 contacts →
	Exact match “DRL is a project management and engineering company based in Houston, Texas.” Recorded in the RevenueBase company graph · Sep 16, 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 “energy engineering consulting companies”. 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 227 energy engineering consulting companies based in Houston, United States

See the full list, filter by size, metro and specialty, and access 7,417 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy engineering consulting companies based in Houston, United States at a glance

As of Sep 16, 2026

26.0%Verified-email coverage

125.5Average contacts per company

11-50Median size (employees)

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

111

11-50

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 227 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 Houston, United States whose business descriptions match “energy engineering consulting companies” 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 7,417 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 September 16, 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.

Energy engineering consulting companies by metro in the United States

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 “energy engineering consulting companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy engineering consulting companies are there based in Houston, United States?

RevenueBase identified 227 company matches for energy engineering consulting companies associated with Houston, United States as of September 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?

Mcdermott International, LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most energy engineering consulting companies?

Houston leads the United States with 227 company records, followed by New York (125) and Austin (69).

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 7,417 professional contacts with verified work emails tracked across these 227 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 September 16, 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 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.