Company lists · Data refreshed September 2026

Top 25 Energy accounting companies based in the United States

Name: Energy accounting 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 21, 2026 1,081 companies tracked

RevenueBase identified 1,081 energy accounting companies headquartered in the United States as of September 2026 and tracks 21,307 professional contacts across them, including 9,072 with verified work emails. Houston is the largest hub.

This list covers energy accounting 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 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

1,081Companies

21,307Contacts tracked

9,072Verified emails

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The 25 largest energy accounting companies based in the United States

Ranked by team size

Top 25 of 1,081 energy accounting companies based in the 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 accounting 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	Clearesult	Partial evidence	Austin, TX, United StatesHQ checked Sep 21, 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 21, 2026
2	Ameresco	Partial evidence	Framingham, MA, United StatesHQ checked Sep 21, 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 21, 2026
3	Willdan	Indirect evidence	Anaheim, CA, United StatesHQ checked Sep 21, 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 21, 2026
4	ACES	Partial evidence	Carmel, IN, United StatesHQ checked Sep 21, 2026	201-500	478 contacts →
	Partial 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 21, 2026
5	Calpine Energy Solutions, LLC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 21, 2026	201-500	467 contacts →
	Partial evidence “Calpine Solutions is a retail energy provider with a robust suite of customized products, analytics, and data management solutions to turn a corporate electricity expense into a…” Source: RevenueBase Database · checked Sep 21, 2026
6	TRIO	Partial evidence	Irvine, CA, United StatesHQ checked Sep 21, 2026	201-500	383 contacts →
	Partial evidence “We are Trio – built from Edison Energy, Alfa Energy, and Altenex Energy.” Source: RevenueBase Database · checked Sep 21, 2026
7	Budderfly	Partial evidence	Shelton, CT, United StatesHQ checked Sep 21, 2026	201-500	366 contacts →
	Partial evidence “Budderfly is redefining how energy efficiency, resilience, and grid participation can work together across America’s commercial sector.” Source: RevenueBase Database · checked Sep 21, 2026
8	NUS Consulting Group	Indirect evidence	Park Ridge, NJ, United StatesHQ checked Sep 21, 2026	201-500	336 contacts →
	Indirect evidence “National Utility Service, Inc.” Source: RevenueBase Database · checked Sep 21, 2026
9	Cascade Energy	Partial evidence	Portland, OR, United StatesHQ checked Sep 21, 2026	201-500	288 contacts →
	Partial evidence “At Cascade Energy, we believe in better.” Source: RevenueBase Database · checked Sep 21, 2026
10	Direct Energy Business	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 21, 2026	1,001-5,000	252 contacts →
	Partial evidence “Direct Energy Business is part of a leading energy and energy-related services provider that is focused on helping customers make their businesses better.” Source: RevenueBase Database · checked Sep 21, 2026
11	Electro Industries Gaugetech	Partial evidence	Westbury, NY, United StatesHQ checked Sep 21, 2026	201-500	241 contacts →
	Partial evidence “For over 45 years, Electro Industries/GaugeTech has been a leader in innovation and technological advancements in the areas of energy management and power monitoring.” Source: RevenueBase Database · checked Sep 21, 2026
12	Mantis Innovation	Partial evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	201-500	233 contacts →
	Partial evidence “At Mantis Innovation, our experts provide data-driven, consultative services designed to optimize your facility, sustainability, and energy management strategies, while ultimately…” Source: RevenueBase Database · checked Sep 21, 2026
13	Dalkia Energy Solutions	Partial evidence	Beverly, MA, United StatesHQ checked Sep 21, 2026	201-500	210 contacts →
	Partial evidence “Dalkia Energy Solutions, a subsidiary of the EDF (Électricité de France) Group, is a national leader in energy efficiency and sustainability for commercial, industrial, and…” Source: RevenueBase Database · checked Sep 21, 2026
14	Motive Energy	Partial evidence	Orange County, CA, United StatesHQ checked Sep 21, 2026	201-500	203 contacts →
	Partial evidence “Motive Energy transforms how businesses source, store, convert, move, and manage their energy through end-to-end solutions that empower customers to take control of their energy.” Source: RevenueBase Database · checked Sep 21, 2026
15	Energy Management Collaborative EMC	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 21, 2026	201-500	193 contacts →
	Partial evidence “EMC manages and scales turnkey energy efficiency solutions for Fortune 500 clients across their North American portfolios.” Source: RevenueBase Database · checked Sep 21, 2026
16	Elect Energy, INC	Indirect evidence	Plano, TX, United StatesHQ checked Sep 21, 2026	n/a	169 contacts →
	Indirect evidence “We're your advocates.” Source: RevenueBase Database · checked Sep 21, 2026
17	Syserco, INC	Partial evidence	Fremont, CA, United StatesHQ checked Sep 21, 2026	51-200	164 contacts →
	Partial evidence “Syserco is an industry leader delivering Energy Management Solutions and Services to commercial and industrial facilities ranging from K-12 Schools, to High Rises, to…” Source: RevenueBase Database · checked Sep 21, 2026
18	Energy Network	Partial evidence	Elkhorn, NE, United StatesHQ checked Sep 21, 2026	201-500	151 contacts →
	Partial evidence “Energy Network has four areas of expertise, each of which is focused on reducing operational expenses and at the same time augment our clients’ sustainability objectives.” Source: RevenueBase Database · checked Sep 21, 2026
19	Touchstone IQ	Partial evidence	Denver, CO, United StatesHQ checked Sep 21, 2026	51-200	139 contacts →
	Partial evidence “Touchstone IQ is a leading-edge building energy management software & services company.” Source: RevenueBase Database · checked Sep 21, 2026
20	Pepco Energy Services	Partial evidence	Arlington, VA, United StatesHQ checked Sep 21, 2026	501-1,000	138 contacts →
	Partial evidence “NOTE: Pepco Energy Services was acquired by Exelon Corporation on March 24, 2016 and now operates under Constellation New Energy Since 1995, Pepco Energy Services has successfully…” Source: RevenueBase Database · checked Sep 21, 2026
21	Concord Engineering Group, INC	Indirect evidence	Voorhees, NJ, United StatesHQ checked Sep 21, 2026	51-200	135 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
22	Seam Group	Partial evidence	Beachwood, OH, United StatesHQ checked Sep 21, 2026	10001+	128 contacts →
	Partial evidence “ABB has finalized the acquisition of SEAM Group, a US-based provider of energized asset management and advisory services to clients across industrial and commercial building…” Source: RevenueBase Database · checked Sep 21, 2026
23	Synergy Companies	Partial evidence	Fresno, CA, United StatesHQ checked Sep 21, 2026	501-1,000	124 contacts →
	Partial evidence “Synergy Companies is the largest energy services companies in California and provides a comprehensive approach to energy efficiency and environmental solutions in both the…” Source: RevenueBase Database · checked Sep 21, 2026
24	Michaels Energy- An Inc. 5000 Company	Partial evidence	La Crosse, WI, United StatesHQ checked Sep 21, 2026	51-200	121 contacts →
	Partial evidence “Michaels Energy is a veteran-owned energy consulting firm that exists to help businesses minimize waste and maximize value.” Source: RevenueBase Database · checked Sep 21, 2026
25	Scale Microgrids	Partial evidence	Ridgewood, NJ, United StatesHQ checked Sep 21, 2026	51-200	119 contacts →
	Partial evidence “The future of humanity is dependent on making our energy infrastructure cleaner, more affordable, and more resilient.” 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 accounting 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 accounting companies.
Partial evidence: Its own public description names part of energy accounting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy accounting 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 1,081 energy accounting companies based in the United States

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Energy accounting companies based in the United States at a glance

As of Sep 21, 2026

42.6%Verified-email coverage

19.7Average contacts per company

11-50Median size (employees)

5.7%Largest-city concentration · Houston

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

519

11-50

377

51-200

129

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 1,081 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 accounting 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 accounting 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 accounting 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 accounting 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, 9,072 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 accounting companies by metro

Energy accounting companies in Houston62
Energy accounting companies in New York49

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 accounting 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 accounting companies are there based in the United States?

RevenueBase identified 1,081 energy accounting 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?

Clearesult, headquartered in Austin, tops this list with the largest team on record.

Which city has the most energy accounting companies?

Houston leads with 62 headquartered companies, followed by New York (49) and Dallas (22).

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 9,072 verified decision-maker contacts tracked across these 1,081 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.