Company lists · Data refreshed November 2026

Top 24 Energy project development consultants based in the United States

Name: Energy project development consultants based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 3,823 companies tracked

RevenueBase identified 3,823 company matches for energy project development consultants associated with the United States as of November 2026 and tracks 277,299 professional contacts across them, including 110,250 with verified work emails. Houston is the largest hub.

This list covers company matches for energy project development consultants 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 November 6, 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 Nov 6, 2026 How this list was built

3,823Companies

277,299Contacts tracked

110,250Verified emails

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The 24 largest energy project development consultants based in the United States

Ranked by team size

Top 24 of 3,823 company matches for energy project development consultants based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 Nov 6, 2026	10001+	68,572 contacts →
	Exact match “AECOM is the global infrastructure leader, committed to delivering a better world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Jacobs	Exact match	Dallas, TX, United StatesHQ recorded Nov 6, 2026	10001+	50,733 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 · Nov 6, 2026 · View company records in RevenueBase
3	Sargent & Lundy	Exact match	Chicago, NJ, United StatesHQ recorded Nov 6, 2026	1,001-5,000	4,591 contacts →
	Exact match “Sargent & Lundy is one of the world’s longest-standing full-service architect engineering firms.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	FTI	Exact match	Menasha, WI, United StatesHQ recorded Nov 6, 2026	5,001-10,000	2,999 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 · Nov 6, 2026 · View company records in RevenueBase
5	Langan Engineering & Environmental Services	Exact match	Parsippany, TN, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,492 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 · Nov 6, 2026 · View company records in RevenueBase
6	Enercon Services, INC	Exact match	Kennesaw, PA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,022 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 · Nov 6, 2026 · View company records in RevenueBase
7	Westwood Professional Services	Exact match	Plano, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,849 contacts →
	Exact match “At Westwood, our purpose is to create a better world for people through our work.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Ameresco	Exact match	Framingham, MA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,570 contacts →
	Exact match “Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure company delivering integrated solutions to create reliable power and modernize infrastructure.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Atwell, LLC	Exact match	Southfield, MI, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,561 contacts →
	Exact match “Atwell is a full-service consulting, engineering and construction services firm that delivers a broad range of creative solutions to clients in the real estate and land…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Partner Engineering & Science, INC	Exact match	Torrance, WA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,481 contacts →
	Exact match “Partner Assessment Corp.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Davey Resource Group, INC	Exact match	Kent, OH, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,477 contacts →
	Exact match “Davey Resource Group, Inc.(DRG) provides innovative consulting and field services that support utility infrastructure and environmental stewardship.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Gulf Companies	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,165 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 · Nov 6, 2026 · View company records in RevenueBase
13	Barr Engineering CO	Exact match	Minneapolis, NV, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,146 contacts →
	Exact match “Barr provides engineering and environmental consulting services to clients across the Midwest, throughout the Americas, and around the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Wanzek Construction, Inc., A Mastec Company	Exact match	Fargo, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	977 contacts →
	Exact match “Wanzek Construction, Inc, a MasTec Renewables company, is a leading general construction contractor and clean energy services company headquartered in Fargo, North Dakota.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	FMI	Exact match	Raleigh, NC, United StatesHQ recorded Nov 6, 2026	n/a	905 contacts →
	Exact match “For more than 70 years, FMI has been the leading management consulting and investment banking* firm dedicated exclusively to engineering and construction, infrastructure, and the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Willdan	Exact match	Anaheim, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	897 contacts →
	Exact match “Willdan (NASDAQ: WLDN) provides professional consulting and technical services to utilities, public agencies and private industry throughout the United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Capco Energy	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	880 contacts →
	Exact match “For 25 years Capco’s Energy practice has combined innovative thinking with deep industry knowledge to provide business consulting, digital transformation and technology services…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	PAE	Exact match	Portland, NV, United StatesHQ recorded Nov 6, 2026	201-500	843 contacts →
	Exact match “PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Percheron, LLC	Exact match	Katy, TX, United StatesHQ recorded Nov 6, 2026	501-1,000	842 contacts →
	Exact match “Percheron streamlines energy infrastructure projects through a comprehensive EPCM (Engineering, Procurement, Construction Management) approach.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	DUDEK	Exact match	Encinitas, CA, United StatesHQ recorded Nov 6, 2026	501-1,000	829 contacts →
	Exact match “Dudek is an environmental, planning, and engineering consulting firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Resource Innovations	Exact match	Half Moon Bay, OR, United StatesHQ recorded Nov 6, 2026	501-1,000	793 contacts →
	Exact match “Resource Innovations (RI) is an energy transformation firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Electric Power Engineers	Exact match	Austin, TX, United StatesHQ recorded Nov 6, 2026	501-1,000	716 contacts →
	Exact match “Electric Power Engineers (EPE) is a global advisory and engineering firm advancing grid reliability, resilience, flexibility, and affordability.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	GIS	Exact match	Galliano, LA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	656 contacts →
	Exact match “Established in 1948 in Grand Isle, LA, GIS began as a modest company serving the commercial fishing industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Applied Consultants	Exact match	Longview, TX, United StatesHQ recorded Nov 6, 2026	501-1,000	611 contacts →
	Exact match “Since 1991, Applied Consultants Inc.” Recorded in the RevenueBase company graph · Nov 6, 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 project development consultants”. 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 24 of 3,823 energy project development consultants based in the United States

See the full list, filter by size, metro and specialty, and access 110,250 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Energy project development consultants based in the United States at a glance

As of Nov 6, 2026

39.8%Verified-email coverage

72.5Average contacts per company

1-10Median size (employees)

8.1%Largest-city concentration · Houston

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

2,222

11-50

1,103

51-200

315

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 3,823 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 project development consultants” 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 110,250 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 November 6, 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 project development consultants 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 project development consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy project development consultants are there based in the United States?

RevenueBase identified 3,823 company matches for energy project development consultants associated with the United States as of November 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 project development consultants?

Houston leads with 308 company records, followed by New York (164) and Washington (92).

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 110,250 professional contacts with verified work emails tracked across these 3,823 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 November 6, 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.