Company lists · Data refreshed September 2026

Top 25 Energy management consulting companies based in the United States

Name: Energy management consulting 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 28, 2026 3,215 companies tracked

RevenueBase identified 3,215 energy management consulting companies headquartered in the United States as of September 2026 and tracks 58,385 professional contacts across them, including 25,123 with verified work emails. Houston is the largest hub.

This list covers energy management consulting 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 28, 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 28, 2026 86% judged on-target in blind review

3,215Companies

58,385Contacts tracked

25,123Verified emails

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

The 25 largest energy management consulting companies based in the United States

Ranked by team size

Top 25 of 3,215 energy management consulting companies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to energy management consulting 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	Sargent & Lundy	Indirect evidence	Chicago, WY, United StatesHQ checked Sep 28, 2026	1,001-5,000	4,156 contacts →
	Indirect evidence “Sargent & Lundy is one of the world’s longest-standing full-service architect engineering firms.” Source: RevenueBase Database · checked Sep 28, 2026
2	Mckinstry	Partial evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,213 contacts →
	Partial evidence “We're a national construction and energy services company dedicated to innovating the waste and climate harm out of the built environment.” Source: RevenueBase Database · checked Sep 28, 2026
3	Clearesult	Partial evidence	Austin, TX, United StatesHQ checked Sep 28, 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 28, 2026
4	Ameresco	Partial evidence	Framingham, MA, United StatesHQ checked Sep 28, 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 28, 2026
5	OLA	Partial evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	n/a	1,145 contacts →
	Partial evidence “OLA Sustainability, LLC OLA Sustainability is a consulting firm that focuses on integrating sustainable practices into commercial and multifamily design projects.” Source: RevenueBase Database · checked Sep 28, 2026
6	World Kinect	Strong evidence	Miami, FL, United StatesHQ checked Sep 28, 2026	1,001-5,000	998 contacts →
	Strong evidence “Headquartered in Miami, Florida, World Kinect Corporation (NYSE: WKC) is a leading global energy management company, offering a broad suite of solutions across the energy product…” Source: RevenueBase Database · checked Sep 28, 2026
7	Willdan	Partial evidence	Anaheim, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	851 contacts →
	Partial 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 28, 2026
8	Energy Solutions	Strong evidence	Oakland, CA, United StatesHQ checked Sep 28, 2026	201-500	772 contacts →
	Strong evidence “Our mission is simple - to combat climate change through market-based, cost-effective energy, carbon, and water management solutions that make big impacts.” Source: RevenueBase Database · checked Sep 28, 2026
9	Resource Innovations	Partial evidence	Half Moon Bay, CA, United StatesHQ checked Sep 28, 2026	501-1,000	733 contacts →
	Partial evidence “Resource Innovations (RI) is an energy transformation firm.” Source: RevenueBase Database · checked Sep 28, 2026
10	Capco Energy	Strong evidence	Houston, TX, United StatesHQ checked Sep 28, 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 28, 2026
11	Albireo Energy	Partial evidence	Edison, NJ, United StatesHQ checked Sep 28, 2026	1,001-5,000	669 contacts →
	Partial evidence “Albireo Energy is a leading independent building controls and energy services provider recognized by customers for creating intelligent, high-performance buildings.” Source: RevenueBase Database · checked Sep 28, 2026
12	ACES	Strong evidence	Carmel, IN, United StatesHQ checked Sep 28, 2026	201-500	478 contacts →
	Strong evidence “ACES is a nationwide energy management company that helps its clients buy, sell, and manage the complexity of the U.S.” Source: RevenueBase Database · checked Sep 28, 2026
13	Sitelogiq	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 28, 2026	501-1,000	450 contacts →
	Partial evidence “SitelogIQ provides design, engineering, and construction management services that help organizations nationwide modernize their facilities and infrastructure.” Source: RevenueBase Database · checked Sep 28, 2026
14	TRIO	Partial evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	201-500	383 contacts →
	Partial evidence “We are Trio – built from Edison Energy, Alfa Energy, and Altenex Energy.” Source: RevenueBase Database · checked Sep 28, 2026
15	P2s	Indirect evidence	Long Beach, CA, United StatesHQ checked Sep 28, 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 28, 2026
16	IHI E&c International Corporation	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	n/a	356 contacts →
	Partial evidence “Now IHI Energy Solutions, Inc, visit our page” Source: RevenueBase Database · checked Sep 28, 2026
17	Wendel Companies	Strong evidence	Williamsville, NY, United StatesHQ checked Sep 28, 2026	201-500	355 contacts →
	Strong 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 28, 2026
18	Hanley Energy	Strong evidence	Ashburn, VA, United StatesHQ checked Sep 28, 2026	501-1,000	353 contacts →
	Strong evidence “Hanley Energy are global innovators in Critical Power and Energy Management solutions, with a stable of world-class engineers shared between European headquarters in Ireland…” Source: RevenueBase Database · checked Sep 28, 2026
19	NUS Consulting Group	Indirect evidence	Park Ridge, NJ, United StatesHQ checked Sep 28, 2026	201-500	336 contacts →
	Indirect evidence “National Utility Service, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
20	Customized Energy Solutions	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	201-500	330 contacts →
	Partial evidence “Customized Energy Solutions is at the forefront of competitive energy markets.” Source: RevenueBase Database · checked Sep 28, 2026
21	Cascade Energy	Partial evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	201-500	288 contacts →
	Partial evidence “At Cascade Energy, we believe in better.” Source: RevenueBase Database · checked Sep 28, 2026
22	Lake Superior Consulting	Partial evidence	Duluth, MN, United StatesHQ checked Sep 28, 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 28, 2026
23	Illumine-I	Indirect evidence	Austin, CA, United StatesHQ checked Sep 28, 2026	201-500	275 contacts →
	Indirect evidence “The world runs on power.” Source: RevenueBase Database · checked Sep 28, 2026
24	Nova Group, GBC	Partial evidence	St. Louis Park, MN, United StatesHQ checked Sep 28, 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 28, 2026
25	PSC Consulting	Strong evidence	Kirkland, WA, United StatesHQ checked Sep 28, 2026	201-500	254 contacts →
	Strong evidence “We provide global renewable energy consulting services, focused on empowering clients to navigate the complexities of the energy transition.” Source: RevenueBase Database · checked Sep 28, 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 management consulting 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 energy management consulting companies.
Partial evidence: Its own public description names part of energy management consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy management consulting 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 3,215 energy management consulting companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 25,123 reachable decision-makers.

Free signup · no credit card

View the full list →

Energy management consulting companies based in the United States at a glance

As of Sep 28, 2026

43.0%Verified-email coverage

18.2Average contacts per company

1-10Median size (employees)

4.6%Largest-city concentration · Houston

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,839

11-50

974

51-200

285

201-500

501-1,000

1,001-5,000

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 3,215 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 management consulting 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 “energy management consulting 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 energy management consulting 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 energy management consulting 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, 25,123 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 28, 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 management consulting companies 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 energy management consulting 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 energy management consulting companies are there based in the United States?

RevenueBase identified 3,215 energy management consulting 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?

Sargent & Lundy, headquartered in Casper, tops this list with the largest team on record.

Which city has the most energy management consulting companies?

Houston leads with 148 headquartered companies, followed by New York (130) and Chicago (58).

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 25,123 verified decision-maker contacts tracked across these 3,215 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 3,215 energy management consulting companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Energy management consulting companies 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 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.