Company lists · Data refreshed September 2026

Top 25 Renewable energy research firms based in the United States

Name: Renewable energy research firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 864 companies tracked

RevenueBase identified 864 company matches for renewable energy research firms associated with the United States as of September 2026 and tracks 12,566 professional contacts across them, including 5,275 with verified work emails. New York is the largest hub.

This list covers company matches for renewable energy research firms 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 September 17, 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 Sep 17, 2026 How this list was built

864Companies

12,566Contacts tracked

5,275Verified emails

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The 25 largest renewable energy research firms based in the United States

Ranked by team size

Top 25 of 864 company matches for renewable energy research firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	EPRI	Exact match	Palo Alto, CA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	1,870 contacts →
	Exact match “Founded in 1972, EPRI is the world's preeminent independent, non-profit energy research and development organization, with offices around the world.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	TRIO	Exact match	Irvine, CA, United StatesHQ recorded Sep 17, 2026	201-500	383 contacts →
	Exact match “We are Trio – built from Edison Energy, Alfa Energy, and Altenex Energy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Takkion	Exact match	Evansville, WY, United StatesHQ recorded Sep 17, 2026	1,001-5,000	358 contacts →
	Exact match “TAKKION is Moving Energy Forward.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	PSC Consulting	Exact match	Kirkland, WA, United StatesHQ recorded Sep 17, 2026	201-500	254 contacts →
	Exact match “We provide global renewable energy consulting services, focused on empowering clients to navigate the complexities of the energy transition.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Energy & Environmental Research Center	Exact match	Grand Forks, ND, United StatesHQ recorded Sep 17, 2026	201-500	213 contacts →
	Exact match “The Energy & Environmental Research Center (EERC) is recognized as one of the world's leading developers of cleaner, more efficient energy to power the world and environmental…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Nexant	Exact match	Half Moon Bay, CA, United StatesHQ recorded Sep 17, 2026	201-500	183 contacts →
	Exact match “Resource Innovations now combined with Nexant is a substantially woman-owned, woman-led energy consulting firm dedicated to creating equal access to clean resources through…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Green World Renewable Energy LLC	Exact match	Brooklyn, MD, United StatesHQ recorded Sep 17, 2026	201-500	182 contacts →
	Exact match “Green World Renewable Energy delivers smart, scalable solar engineering and back-office design solutions for residential, commercial, and utility-scale projects across the U.S.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Energy And Environmental Economics, INC	Exact match	San Francisco, CA, United StatesHQ recorded Sep 17, 2026	51-200	156 contacts →
	Exact match “Energy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	NRG Systems	Exact match	Hinesburg, VT, United StatesHQ recorded Sep 17, 2026	51-200	120 contacts →
	Exact match “NRG Systems is the global leader in wind and solar resource measurement and intelligence.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Groundwork Renewables	Exact match	Sand City, CA, United StatesHQ recorded Sep 17, 2026	51-200	116 contacts →
	Exact match “GroundWork Renewables is the leading provider of high-quality meteorological (MET) data and ISO-accredited PV lab testing to give solar plant owners complete situational awareness…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Adm, A Qualus Company	Exact match	Sacramento, CA, United StatesHQ recorded Sep 17, 2026	1,001-5,000	102 contacts →
	Exact match “Qualus is a leading pure-play power services firm and innovator at the forefront of the energy transition and transformation, with differentiated capabilities across grid…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Environ Energy	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	51-200	98 contacts →
	Exact match “Environ Energy is a leader in accelerating global sustainable energy transformation for more than 30 years.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Panthalassa	Exact match	Portland, OR, United StatesHQ recorded Sep 17, 2026	51-200	91 contacts →
	Exact match “The open ocean is Earth’s largest and most power-dense renewable energy resource.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Opinion Dynamics	Exact match	Waltham, MA, United StatesHQ recorded Sep 17, 2026	51-200	88 contacts →
	Exact match “Emerging Questions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Euclid Power	Exact match	New York, NY, United StatesHQ recorded Sep 17, 2026	51-200	85 contacts →
	Exact match “Euclid Power is comprised of a team of industry-leading veterans within renewable energy project development, diligence, finance, and execution with over 10GW of PV and 5GWh of…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Erco Energy Texas	Exact match	San Antonio, TX, United StatesHQ recorded Sep 17, 2026	11-50	76 contacts →
	Exact match “We help homes and business to reach energy independence trough: Clean, Affordable and Digital Energy” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Joule Energy	Exact match	New Orleans, LA, United StatesHQ recorded Sep 17, 2026	51-200	62 contacts →
	Exact match “Joule Energy, a Louisiana owned and operated company, was founded on the principle that investing in energy innovation can be as beneficial to the bottom-line as it is to the…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Synapse Energy Economics	Exact match	Cambridge, MA, United StatesHQ recorded Sep 17, 2026	11-50	59 contacts →
	Exact match “Synapse Energy Economics, Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	IOWN	Exact match	La Jolla, CA, United StatesHQ recorded Sep 17, 2026	51-200	55 contacts →
	Exact match “We want to facilitate the transition from fossil fuels to clean, renewable energy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Eeplus, INC	Exact match	Lewisville, TX, United StatesHQ recorded Sep 17, 2026	11-50	53 contacts →
	Exact match “EEPLUS is a niche strategic energy advisory firm specializing in all aspects of next generation grid, transmission and distribution infrastructure projects with a special focus on…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	NMR Group, INC	Exact match	Somerville, MA, United StatesHQ recorded Sep 17, 2026	11-50	50 contacts →
	Exact match “NMR Group helps clients evaluate energy-efficiency and renewable energy programs and assess the complex markets in which they operate.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	American Solar Energy Society	Exact match	Boulder, CO, United StatesHQ recorded Sep 17, 2026	n/a	48 contacts →
	Exact match “The American Solar Energy Society (ASES) is a 501(c)(3) non-profit that advocates for 100% renewable energy and sustainable living by sharing information, events, and resources to…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	BIG DOG Solar	Exact match	Pocatello, ID, United StatesHQ recorded Sep 17, 2026	51-200	44 contacts →
	Exact match “At Big Dog Solar Energy we specialize in renewable energy, with a core competency in photovoltaics (Residential and Commercial Solar Energy).” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Orion Renewable Energy Group LLC	Exact match	Oakland, CA, United StatesHQ recorded Sep 17, 2026	11-50	41 contacts →
	Exact match “Orion is a pioneer in the renewable energy industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Illume Advising	Exact match	Madison, WI, United StatesHQ recorded Sep 17, 2026	11-50	40 contacts →
	Exact match “For decades, E Source has been a trusted partner to utilities navigating an evolving energy landscape.” Recorded in the RevenueBase company graph · Sep 17, 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 “renewable energy research firms”. 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 864 renewable energy research firms based in the United States

See the full list, filter by size, metro and specialty, and access 5,275 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Renewable energy research firms based in the United States at a glance

As of Sep 17, 2026

42.0%Verified-email coverage

14.5Average contacts per company

1-10Median size (employees)

2.3%Largest-city concentration · New York

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

525

11-50

244

51-200

201-500

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 864 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 “renewable energy research firms” 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 5,275 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 September 17, 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.

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 “renewable energy research firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many renewable energy research firms are there based in the United States?

RevenueBase identified 864 company matches for renewable energy research firms associated with the United States as of September 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?

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

Which city has the most renewable energy research firms?

New York leads with 20 company records, followed by Houston (19) and Dallas (17).

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 5,275 professional contacts with verified work emails tracked across these 864 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 September 17, 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.