Company lists · Data refreshed September 2026

Top 25 Industrial energy consultants based in the United States

Name: Industrial energy consultants 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 3,222 companies tracked

RevenueBase identified 3,222 industrial energy consultants headquartered in the United States as of September 2026 and tracks 57,136 professional contacts across them, including 25,154 with verified work emails. Houston is the largest hub.

This list covers industrial energy consultants 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

3,222Companies

57,136Contacts tracked

25,154Verified emails

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The 25 largest industrial energy consultants based in the United States

Ranked by team size

Top 25 of 3,222 industrial energy consultants 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 industrial energy consultants: 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	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
2	Langan Engineering & Environmental Services	Indirect evidence	Parsippany, NJ, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,177 contacts →
	Indirect evidence “Langan's client-focused, highly entrepreneurial culture cultivates an environment of opportunities in which career growth and teamwork flourish.” Source: RevenueBase Database · checked Sep 17, 2026
3	Clearesult	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,121 contacts →
	Partial evidence “CLEAResult is the largest provider of energy efficiency, energy transition and energy sustainability services in North America.” Source: RevenueBase Database · checked Sep 17, 2026
4	Enercon Services, INC	Partial evidence	Kennesaw, GA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,865 contacts →
	Partial evidence “ENERCON is a multi-discipline engineering and environmental engineering support services firm focused on delivering safe and efficient solutions for the power, data center and…” Source: RevenueBase Database · checked Sep 17, 2026
5	Ameresco	Partial evidence	Framingham, MA, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,383 contacts →
	Partial evidence “Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the…” Source: RevenueBase Database · checked Sep 17, 2026
6	Willdan	Indirect evidence	Anaheim, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	851 contacts →
	Indirect evidence “Willdan (NASDAQ: WLDN) provides professional consulting and technical services to utilities, public agencies and private industry throughout the United States.” Source: RevenueBase Database · checked Sep 17, 2026
7	Industrial Info Resources	Strong evidence	Sugar Land, TX, United StatesHQ checked Sep 17, 2026	501-1,000	769 contacts →
	Strong evidence “Industrial Info Resources is a leading provider of global industrial and energy market intelligence.” Source: RevenueBase Database · checked Sep 17, 2026
8	Resource Innovations	Partial evidence	Half Moon Bay, CA, United StatesHQ checked Sep 17, 2026	501-1,000	733 contacts →
	Partial evidence “Resource Innovations (RI) is an energy transformation firm.” Source: RevenueBase Database · checked Sep 17, 2026
9	Capco Energy	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	715 contacts →
	Partial 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 17, 2026
10	Applied Consultants	Partial evidence	Longview, TX, United StatesHQ checked Sep 17, 2026	501-1,000	578 contacts →
	Partial evidence “Since 1991, Applied Consultants Inc.” Source: RevenueBase Database · checked Sep 17, 2026
11	Soenergy International	Strong evidence	Doral, FL, United StatesHQ checked Sep 17, 2026	1,001-5,000	567 contacts →
	Strong evidence “SoEnergy is a global provider of "energy as a service", ensuring customized solutions for a diverse array of organizations and industries worldwide, such as mining, oil & gas…” Source: RevenueBase Database · checked Sep 17, 2026
12	Noresco	Partial evidence	Westborough, MA, United StatesHQ checked Sep 17, 2026	201-500	481 contacts →
	Partial evidence “NORESCO, a part of Carrier Global Corporation, helps customers modernize aging building systems and upgrade energy and water infrastructure to meet evolving demands.” Source: RevenueBase Database · checked Sep 17, 2026
13	Concentric Power Services	Partial evidence	Carrollton, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	426 contacts →
	Partial evidence “Concentric is the first national industrial power services organization delivering forklift and critical power as well as maintenance solutions that ensure uninterrupted…” Source: RevenueBase Database · checked Sep 17, 2026
14	TRIO	Partial evidence	Irvine, CA, United StatesHQ checked Sep 17, 2026	201-500	383 contacts →
	Partial evidence “We are Trio – built from Edison Energy, Alfa Energy, and Altenex Energy.” Source: RevenueBase Database · checked Sep 17, 2026
15	P2s	Indirect evidence	Long Beach, CA, United StatesHQ checked Sep 17, 2026	201-500	375 contacts →
	Indirect evidence “P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.” Source: RevenueBase Database · checked Sep 17, 2026
16	IHI E&c International Corporation	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	n/a	356 contacts →
	Partial evidence “Now IHI Energy Solutions, Inc, visit our page” Source: RevenueBase Database · checked Sep 17, 2026
17	Wendel Companies	Partial evidence	Williamsville, NY, United StatesHQ checked Sep 17, 2026	201-500	355 contacts →
	Partial evidence “Wendel is an Architecture, Engineering, Energy Efficiency, and Construction Management Firm that delivers customized solutions and turnkey projects in innovative ways.” Source: RevenueBase Database · checked Sep 17, 2026
18	NUS Consulting Group	Indirect evidence	Park Ridge, NJ, United StatesHQ checked Sep 17, 2026	201-500	336 contacts →
	Indirect evidence “National Utility Service, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
19	Customized Energy Solutions	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 17, 2026	201-500	330 contacts →
	Partial evidence “Customized Energy Solutions is at the forefront of competitive energy markets.” Source: RevenueBase Database · checked Sep 17, 2026
20	Commonwealth Associates, INC	Indirect evidence	Jackson, MI, United StatesHQ checked Sep 17, 2026	201-500	305 contacts →
	Indirect evidence “We provide expert engineering and consulting services that enable a more reliable and resilient power system.” Source: RevenueBase Database · checked Sep 17, 2026
21	Cascade Energy	Partial evidence	Portland, OR, United StatesHQ checked Sep 17, 2026	201-500	288 contacts →
	Partial evidence “At Cascade Energy, we believe in better.” Source: RevenueBase Database · checked Sep 17, 2026
22	Lake Superior Consulting	Partial evidence	Duluth, MN, United StatesHQ checked Sep 17, 2026	201-500	281 contacts →
	Partial evidence “We act as an extension of your team, combining deep energy expertise with seamless alignment to your processes to advance projects with confidence.” Source: RevenueBase Database · checked Sep 17, 2026
23	Illumine-I	Indirect evidence	Austin, CA, United StatesHQ checked Sep 17, 2026	201-500	275 contacts →
	Indirect evidence “The world runs on power.” Source: RevenueBase Database · checked Sep 17, 2026
24	Merjent	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 17, 2026	201-500	264 contacts →
	Partial evidence “Merjent is an environmental, restoration, and engineering consulting firm with a long history serving the energy industry.” Source: RevenueBase Database · checked Sep 17, 2026
25	Nova Group, GBC	Partial evidence	St. Louis Park, MN, United StatesHQ checked Sep 17, 2026	201-500	264 contacts →
	Partial evidence “Nova Group, GBC is an international, multidisciplinary advising firm providing environmental, engineering and energy services throughout North America and around the globe.” 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: industrial energy consultants. 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 industrial energy consultants.
Partial evidence: Its own public description names part of industrial energy consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial energy consultants. 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 3,222 industrial energy consultants based in the United States

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Industrial energy consultants based in the United States at a glance

As of Sep 17, 2026

44.0%Verified-email coverage

17.7Average contacts per company

1-10Median size (employees)

5.8%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

1,808

11-50

971

51-200

309

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 3,222 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 industrial energy consultants, 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 “industrial energy consultants”. 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 industrial energy consultants), 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 industrial energy consultants, 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, 25,154 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.

Industrial energy consultants by metro

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 industrial energy consultants, 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 industrial energy consultants are there based in the United States?

RevenueBase identified 3,222 industrial energy consultants 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?

FTI, headquartered in Menasha, tops this list with the largest team on record.

Which city has the most industrial energy consultants?

Houston leads with 186 headquartered companies, followed by New York (110) and Dallas (59).

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 25,154 verified decision-maker contacts tracked across these 3,222 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.