Company lists · Data refreshed November 2026

Top 25 Renewables consultants based in the United States

Name: Renewables 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 4,778 companies tracked

RevenueBase identified 4,778 company matches for renewables consultants associated with the United States as of November 2026 and tracks 72,326 professional contacts across them, including 28,267 with verified work emails. Houston is the largest hub.

This list covers company matches for renewables 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

4,778Companies

72,326Contacts tracked

28,267Verified emails

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The 25 largest renewables consultants based in the United States

Ranked by team size

Top 25 of 4,778 company matches for renewables 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	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
2	Fluence	Exact match	Arlington, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,019 contacts →
	Exact match “To achieve our mission, we design, deploy, and operate the world’s most advanced modular energy storage products, comprehensive lifecycle services, and AI-enabled asset management…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Just Energy	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,798 contacts →
	Exact match “Established in 1997, Just Energy has been a leading retail energy provider serving markets across the United States and Canada.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Solv Energy	Exact match	San Diego, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,484 contacts →
	Exact match “SOLV Energy is a renewable energy solutions provider for utility solar, energy storage, and high voltage projects in North America.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	OLA	Exact match	Austin, TX, United StatesHQ recorded Nov 6, 2026	n/a	1,164 contacts →
	Exact match “OLA Sustainability, LLC OLA Sustainability is a consulting firm that focuses on integrating sustainable practices into commercial and multifamily design projects.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	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
7	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
8	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
9	SEL Construction Corporation	Exact match	Loomis, CA, United StatesHQ recorded Nov 6, 2026	n/a	727 contacts →
	Exact match “Experienced commercial contractor specializing in renewable energy, electrical, and roofing projects for privately-owned buildings as well as state/local government buildings in…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	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
11	LUMIO	Exact match	Lehi, UT, United StatesHQ recorded Nov 6, 2026	5,001-10,000	700 contacts →
	Exact match “We’re on a mission to make power personal.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Greentech Renewables	Exact match	San Diego, MA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	602 contacts →
	Exact match “As Greentech Renewables, we prioritize our commitment to providing customers with exceptional service and top-tier products from prominent renewable energy manufacturers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	RRC Companies	Exact match	Round Rock, NM, United StatesHQ recorded Nov 6, 2026	201-500	564 contacts →
	Exact match “RRC is a top-tier designer of utility-scale wind, solar, energy storage, data center, and oil & gas projects in the US and select international markets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Enfinity Global	Exact match	Miami, FL, United StatesHQ recorded Nov 6, 2026	201-500	466 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Takkion	Exact match	Evansville, WY, United StatesHQ recorded Nov 6, 2026	1,001-5,000	431 contacts →
	Exact match “TAKKION is Moving Energy Forward.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Gemma Power Systems	Exact match	Glastonbury, CT, United StatesHQ recorded Nov 6, 2026	51-200	409 contacts →
	Exact match “Gemma Power Systems, a wholly owned subsidiary of Argan Inc.(NYSE: AGX), is a leading Engineering, Procurement and Construction (EPC) company providing innovative solutions for…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Energyscape Renewables	Exact match	Denver, United StatesHQ recorded Nov 6, 2026	501-1,000	401 contacts →
	Exact match “Established in 2019.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	TRIO	Exact match	Irvine, MA, United StatesHQ recorded Nov 6, 2026	201-500	393 contacts →
	Exact match “We are Trio – global energy and sustainability advisors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	P2s	Exact match	Long Beach, CA, United StatesHQ recorded Nov 6, 2026	201-500	379 contacts →
	Exact match “P2S has brought forward-thinking, sustainable engineering solutions to the West Coast and beyond for over 35 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	NEI Electric Power Engineering, INC	Exact match	Lakewood, CO, United StatesHQ recorded Nov 6, 2026	201-500	370 contacts →
	Exact match “NEI provides professional expertise and design engineering services for all aspects of power systems engineering.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Supernova	Exact match	Irvine, CO, United StatesHQ recorded Nov 6, 2026	201-500	368 contacts →
	Exact match “Supernova embodies the spirit of innovation and dedication to a sustainable future, making it a shining example of what it means to be a leader in the renewable energy industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Commonwealth Associates, INC	Exact match	Jackson, TX, United StatesHQ recorded Nov 6, 2026	201-500	357 contacts →
	Exact match “We provide expert engineering and consulting services that enable a more reliable and resilient power system.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Customized Energy Solutions	Exact match	Philadelphia, PA, United StatesHQ recorded Nov 6, 2026	201-500	355 contacts →
	Exact match “Customized Energy Solutions is at the forefront of competitive energy markets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Environmental Consulting & Technology, Inc. ECT	Exact match	Gainesville, FL, United StatesHQ recorded Nov 6, 2026	201-500	335 contacts →
	Exact match “ECT delivers environmental solutions for essential infrastructure.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Merjent	Exact match	Minneapolis, CO, United StatesHQ recorded Nov 6, 2026	201-500	314 contacts →
	Exact match “Merjent is an environmental, restoration, and engineering consulting firm with a long history serving the energy industry.” 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 “renewables 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 25 of 4,778 renewables consultants based in the United States

See the full list, filter by size, metro and specialty, and access 28,267 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Renewables consultants based in the United States at a glance

As of Nov 6, 2026

39.1%Verified-email coverage

15.1Average contacts per company

1-10Median size (employees)

4.5%Largest-city concentration · Houston

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

2,742

11-50

1,443

51-200

422

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 4,778 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 “renewables 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 28,267 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.

Renewables 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 “renewables consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many renewables consultants are there based in the United States?

RevenueBase identified 4,778 company matches for renewables 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?

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

Which city has the most renewables consultants?

Houston leads with 213 company records, followed by New York (187) and Chicago (86).

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 28,267 professional contacts with verified work emails tracked across these 4,778 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.