Company lists · Data refreshed October 2026

Top 25 Energy or utility consulting services based in the United States

Name: Energy or utility consulting services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 25, 2026 5,070 companies tracked

RevenueBase identified 5,070 company matches for energy or utility consulting services associated with the United States as of October 2026 and tracks 366,785 professional contacts across them, including 140,316 with verified work emails. Houston is the largest hub.

This list covers company matches for energy or utility consulting services associated with the 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 October 25, 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 Oct 25, 2026 How this list was built

5,070Companies

366,785Contacts tracked

140,316Verified emails

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The 25 largest energy or utility consulting services based in the United States

Ranked by team size

Top 25 of 5,070 company matches for energy or utility consulting services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 25, 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	AECOM	Exact match	Dallas, TX, United StatesHQ recorded Oct 25, 2026	10001+	65,956 contacts →
	Exact match “AECOM is the global infrastructure leader, committed to delivering a better world.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
2	Jacobs	Exact match	Dallas, TX, United StatesHQ recorded Oct 25, 2026	10001+	48,845 contacts →
	Exact match “At Jacobs, we're challenging today to reinvent tomorrow – delivering outcomes and solutions for the world's most complex challenges.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
3	Bechtel Corporation	Exact match	Reston, VA, United StatesHQ recorded Oct 25, 2026	10001+	28,458 contacts →
	Exact match “Bechtel is a trusted engineering, construction and project management partner to industry and government.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
4	Tetra Tech	Exact match	Pasadena, CA, United StatesHQ recorded Oct 25, 2026	10001+	13,725 contacts →
	Exact match “Tetra Tech is the leader in water, environment and sustainable infrastructure, providing high-end technical and engineering services for projects worldwide.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
5	Black & Veatch	Exact match	Overland Park, KS, United StatesHQ recorded Oct 25, 2026	10001+	11,438 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
6	WSP In The U.S	Exact match	New York, NY, United StatesHQ recorded Oct 25, 2026	10001+	10,184 contacts →
	Exact match “What if you could shape built and natural environments – and the future of those that use them?” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
7	TRC Companies, INC	Exact match	Windsor, CT, United StatesHQ recorded Oct 25, 2026	5,001-10,000	7,140 contacts →
	Exact match “TRC, a member of WSP, stands for adaptability.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
8	Ambit Energy	Exact match	Irving, TX, United StatesHQ recorded Oct 25, 2026	n/a	3,906 contacts →
	Exact match “Ambit Energy provides electricity, natural gas and solar services in numerous markets across the United States, primarily marketed through a direct sales channel of more than…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
9	DAI	Exact match	Bethesda, MD, United StatesHQ recorded Oct 25, 2026	5,001-10,000	3,732 contacts →
	Exact match “DAI is an integrated professional services and advisory firm that provides project design and delivery, management consulting, and financial services to companies, investors, and…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
10	Entrust Solutions Group	Exact match	Lisle, IL, United StatesHQ recorded Oct 25, 2026	1,001-5,000	3,020 contacts →
	Exact match “ENTRUST Solutions Group, an ENR Top 100 company, provides comprehensive and dependable engineering, consulting, and automation services to pipeline companies, gas and electric…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
11	FTI	Exact match	Menasha, WI, United StatesHQ recorded Oct 25, 2026	1,001-5,000	2,979 contacts →
	Exact match “Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
12	APTIM	Exact match	Baton Rouge, LA, United StatesHQ recorded Oct 25, 2026	1,001-5,000	2,692 contacts →
	Exact match “APTIM enhances the quality of the environment, wellbeing of people, resilience of communities, and opportunity for employees to make a difference, not just a living.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
13	Langan Engineering & Environmental Services	Exact match	Parsippany, NJ, United StatesHQ recorded Oct 25, 2026	1,001-5,000	2,402 contacts →
	Exact match “Langan's client-focused, highly entrepreneurial culture cultivates an environment of opportunities in which career growth and teamwork flourish.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
14	Hazen And Sawyer	Exact match	New York, NY, United StatesHQ recorded Oct 25, 2026	1,001-5,000	2,251 contacts →
	Exact match “As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
15	Olsson	Exact match	Lincoln, NE, United StatesHQ recorded Oct 25, 2026	1,001-5,000	2,229 contacts →
	Exact match “Olsson is an engineering firm made up of people who craft expert solutions and designs that improve communities.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
16	Clearesult	Exact match	Austin, TX, United StatesHQ recorded Oct 25, 2026	1,001-5,000	2,206 contacts →
	Exact match “CLEAResult is the largest provider of energy efficiency, energy transition and energy sustainability services in North America.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
17	LJA	Exact match	Houston, TX, United StatesHQ recorded Oct 25, 2026	1,001-5,000	2,148 contacts →
	Exact match “Employee-Owned.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
18	NAES	Exact match	Issaquah, WA, United StatesHQ recorded Oct 25, 2026	1,001-5,000	1,999 contacts →
	Exact match “NAES is the power generation industry’s largest independent services provider, with more than 40 years of experience managing risk and turning it into profits.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
19	Enercon Services, INC	Exact match	Kennesaw, GA, United StatesHQ recorded Oct 25, 2026	1,001-5,000	1,980 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
20	DT Global	Exact match	Arlington, VA, United StatesHQ recorded Oct 25, 2026	1,001-5,000	1,813 contacts →
	Exact match “DT Global is a project delivery and advisory firm that works with clients worldwide to deliver sustainable positive impact.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
21	Westwood Professional Services	Exact match	Plano, TX, United StatesHQ recorded Oct 25, 2026	1,001-5,000	1,801 contacts →
	Exact match “At Westwood, our purpose is to create a better world for people through our work.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
22	CHA Consulting, INC	Exact match	Albany, NY, United StatesHQ recorded Oct 25, 2026	1,001-5,000	1,733 contacts →
	Exact match “CHA Consulting, Inc.(CHA) is an innovative, full-service engineering, design, consulting, and program/construction management firm providing a wide range of technology-enhanced…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
23	Hexagon Asset Lifecycle Intelligence	Exact match	Madison, AL, United StatesHQ recorded Oct 25, 2026	10001+	1,723 contacts →
	Exact match “Hexagon’s Asset Lifecycle Intelligence division helps clients design, construct and operate more profitable, safe and sustainable industrial facilities.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
24	Swca Environmental Consultants	Exact match	Phoenix, AZ, United StatesHQ recorded Oct 25, 2026	1,001-5,000	1,661 contacts →
	Exact match “Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase
25	GEI Consultants, INC	Exact match	Woburn, MA, United StatesHQ recorded Oct 25, 2026	1,001-5,000	1,639 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 25, 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 or utility consulting services”. 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 5,070 energy or utility consulting services based in the United States

See the full list, filter by size, metro and specialty, and access 140,316 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy or utility consulting services based in the United States at a glance

As of Oct 25, 2026

38.3%Verified-email coverage

72.3Average contacts per company

1-10Median size (employees)

7.5%Largest-city concentration · Houston

Oct 25, 2026Page data refreshed

Companies by employee count

1-10

2,799

11-50

1,467

51-200

487

201-500

154

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 5,070 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 the United States whose business descriptions match “energy or utility consulting services” 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 140,316 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 October 25, 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 or utility consulting services by metro

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 or utility consulting services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy or utility consulting services are there based in the United States?

RevenueBase identified 5,070 company matches for energy or utility consulting services associated with the United States as of October 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?

AECOM tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most energy or utility consulting services?

Houston leads with 378 company records, followed by New York (170) and Dallas (93).

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 140,316 professional contacts with verified work emails tracked across these 5,070 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 October 25, 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.