Company lists · Data refreshed September 2026

Top 25 Energy policy consulting firms worldwide

Name: Energy policy consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 12,793 companies tracked

RevenueBase identified 12,793 company matches for energy policy consulting firms worldwide as of September 2026 and tracks 115,383 professional contacts across them, including 40,017 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for energy policy consulting firms worldwide, 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 28, 2026. Country and city lists for energy policy consulting firms follow the table.

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 28, 2026 How this list was built

12,793Companies

115,383Contacts tracked

40,017Verified emails

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The 25 largest energy policy consulting firms worldwide

Ranked by team size

Top 25 of 12,793 company matches for energy policy consulting firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	ERM	Exact match	London, United KingdomHQ recorded Sep 28, 2026	5,001-10,000	9,119 contacts →
	Exact match “Sustainability is our business.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Swca Environmental Consultants	Exact match	Phoenix, AZ, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,629 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 · Sep 28, 2026 · View company records in RevenueBase
3	Ameresco	Exact match	Framingham, MA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,383 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Barr Engineering CO	Exact match	Minneapolis, MN, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,088 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 · Sep 28, 2026 · View company records in RevenueBase
5	Willdan	Exact match	Anaheim, CA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	851 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 · Sep 28, 2026 · View company records in RevenueBase
6	Inerco	Exact match	Sevilla, SpainHQ recorded Sep 28, 2026	1,001-5,000	688 contacts →
	Exact match “INERCO, with 30 years of experience, offers comprehensive services and develops advanced technologies that contribute to sustainable industrial development, acting as a leader in…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Ricardo PLC	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1,001-5,000	670 contacts →
	Exact match “Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Antea Group USA	Exact match	St Paul, MN, United StatesHQ recorded Sep 28, 2026	1,001-5,000	658 contacts →
	Exact match “Antea Group is an international engineering and environmental consulting firm specializing in full-service solutions in the fields of environment, health and safety, and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	WTS Energy	Exact match	The Hague, NetherlandsHQ recorded Sep 28, 2026	1,001-5,000	651 contacts →
	Exact match “The Energy Transition brings new challenges and opportunities to all of us.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	XODUS	Exact match	Aberdeen, United KingdomHQ recorded Sep 28, 2026	201-500	520 contacts →
	Exact match “As a global energy consultancy, we unite our unique and diverse people to share knowledge, innovate and inspire change within the energy industry.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Kapsarc	Exact match	Riyadh, Saudi ArabiaHQ recorded Sep 28, 2026	51-200	512 contacts →
	Exact match “King Abdullah Petroleum Studies and Research Center (KAPSARC) is an advisory think tank within global energy economics and sustainability providing services to entities and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Sete Soluções E Tecnologia Ambiental	Exact match	Belo Horizonte, BrazilHQ recorded Sep 28, 2026	501-1,000	448 contacts →
	Exact match “Somos uma das maiores consultorias em meio ambiente do Brasil, fundada em 1997, contando, hoje, com uma equipe técnica multidisciplinar permanente, que congrega profissionais das…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Synergy Consulting, INC	Exact match	Washington, DC, United StatesHQ recorded Sep 28, 2026	51-200	434 contacts →
	Exact match “Synergy Consulting is Global Leader in Financial and Corporate Advisory.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Fichtner Consulting Engineers LTD	Exact match	Stockport, United KingdomHQ recorded Sep 28, 2026	51-200	418 contacts →
	Exact match “Fichtner is one of the world's leading independent engineering consultancy firms.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Greenflex	Exact match	Paris, FranceHQ recorded Sep 28, 2026	501-1,000	390 contacts →
	Exact match “Since 2009, GreenFlex has been a key partner in the energy, environmental and societal transformation of organizations, enabling them to change their trajectory towards an economy…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	TRIO	Exact match	Irvine, CA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
17	P2s	Exact match	Long Beach, CA, United StatesHQ recorded Sep 28, 2026	201-500	375 contacts →
	Exact match “P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Gestiona Consultores	Exact match	Santiago, ChileHQ recorded Sep 28, 2026	201-500	375 contacts →
	Exact match “Somos un equipo consolidado y multidisciplinario de profesionales con amplia experiencia en la gestión para el cumplimiento normativo de proyectos de inversión.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	EMM Consulting PTY Limited	Exact match	St Leonards, AustraliaHQ recorded Sep 28, 2026	201-500	361 contacts →
	Exact match “At EMM, we believe that a sustainable future is achievable, and we are dedicated to helping our clients and the community make it a reality.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Triton Environmental Consultants LTD	Exact match	Vancouver, BC, CanadaHQ recorded Sep 28, 2026	201-500	351 contacts →
	Exact match “Triton Environmental Consultants knows western Canada.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	NUS Consulting Group	Exact match	Park Ridge, NJ, United StatesHQ recorded Sep 28, 2026	201-500	336 contacts →
	Exact match “National Utility Service, Inc.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Customized Energy Solutions	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 28, 2026	201-500	330 contacts →
	Exact match “Customized Energy Solutions is at the forefront of competitive energy markets.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Umwelt Environmental & Social Consultants	Exact match	Teralba, AustraliaHQ recorded Sep 28, 2026	201-500	329 contacts →
	Exact match “Umwelt has been trusted by clients and communities for over 30 years.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	ETP CC	Exact match	AustraliaHQ recorded Sep 28, 2026	n/a	320 contacts →
	Exact match “Management Consulting in the Energy Sector” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	EIC Partnership	Exact match	Redditch, United KingdomHQ recorded Sep 28, 2026	51-200	316 contacts →
	Exact match “EIC Partnership: A Legacy of Expertise, A Commitment to Sustainability With origins dating back to 1975, EIC has cultivated nearly 50 years of distinguished service in energy and…” Recorded in the RevenueBase company graph · Sep 28, 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 policy consulting 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 12,793 energy policy consulting firms worldwide

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Energy policy consulting firms worldwide at a glance

As of Sep 28, 2026

34.7%Verified-email coverage

9.0Average contacts per company

1-10Median size (employees)

1.6%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

9,008

11-50

2,992

51-200

576

201-500

100

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for energy policy consulting firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “energy policy consulting 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. 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 40,017 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 28, 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 policy consulting firms by location

72 lists · largest first

Every Energy policy consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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

How many energy policy consulting firms are there worldwide?

RevenueBase identified 12,793 company matches for energy policy consulting firms worldwide 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?

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

Which country has the most energy policy consulting firms?

The United States leads with 2,065 companies, followed by Brazil (921) and Germany (708). Every energy policy consulting firms list by country and city is linked on this page.

Which city has the most energy policy consulting firms?

London leads with 205 company records, followed by Sao Paulo (144) and Paris (143).

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 40,017 professional contacts with verified work emails tracked across these 12,793 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 28, 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.