Company lists · Data refreshed October 2026

Top 25 Clean energy compliance consultants worldwide

Name: Clean energy compliance consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 9, 2026 5,556 companies tracked

RevenueBase identified 5,556 company matches for clean energy compliance consultants worldwide as of October 2026 and tracks 35,967 professional contacts across them, including 10,797 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for clean energy compliance consultants 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 October 9, 2026. Country and city lists for clean energy compliance consultants 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 Oct 9, 2026 How this list was built

5,556Companies

35,967Contacts tracked

10,797Verified emails

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The 25 largest clean energy compliance consultants worldwide

Ranked by team size

Top 25 of 5,556 company matches for clean energy compliance consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 9, 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	ACT Group	Exact match	Amsterdam, United StatesHQ recorded Oct 9, 2026	501-1,000	559 contacts →
	Exact match “As the leading environmental solutions partner for organizations globally, ACT helps its partners meet increasing environmental action and disclosure expectations from regulators…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
2	Valpak Limited	Exact match	Stratford-upon-avon, United KingdomHQ recorded Oct 9, 2026	201-500	391 contacts →
	Exact match “Valpak, a Reconomy brand, is an EcoVadis Platinum certified leader in environmental compliance, recycling, and sustainability solutions.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
3	TRIO	Exact match	Irvine, CA, United StatesHQ recorded Oct 9, 2026	201-500	387 contacts →
	Exact match “We are Trio – global energy and sustainability advisors.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
4	P2s	Exact match	Long Beach, CA, United StatesHQ recorded Oct 9, 2026	201-500	381 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 · Oct 9, 2026 · View company records in RevenueBase
5	NUS Consulting Group	Exact match	Park Ridge, NJ, United StatesHQ recorded Oct 9, 2026	201-500	360 contacts →
	Exact match “National Utility Service, Inc.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
6	Cascade Energy	Exact match	Portland, OR, United StatesHQ recorded Oct 9, 2026	201-500	301 contacts →
	Exact match “At Cascade Energy, we believe in better.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
7	Valora Consultores	Exact match	Madrid, SpainHQ recorded Oct 9, 2026	51-200	250 contacts →
	Exact match “VALORA is a consulting company who focus its activity towards a new professional innovative and thrilling challenge.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
8	APPL	Exact match	Clovis, CA, United StatesHQ recorded Oct 9, 2026	n/a	217 contacts →
	Exact match “Appl Inc is an environmental services company based out of 908 N Temperance Ave, Clovis, CA, United States.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
9	PEG	Exact match	Fairfax, VA, United StatesHQ recorded Oct 9, 2026	201-500	216 contacts →
	Exact match “PEG presents a comprehensive capacity for the evaluation and understanding of a broad base of energy and environmental sustainability related programs, policies and initiatives.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
10	D2o	Exact match	Jaipur, IndiaHQ recorded Oct 9, 2026	51-200	204 contacts →
	Exact match “Design2Occupancy Services LLP (D2O) is a leading organization providing a platform and solutions in Energy Efficiency Analysis and Energy Code Compliances, Climate Change…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
11	Sm, Sistemas Medioambientales, SL	Exact match	Barcelona, SpainHQ recorded Oct 9, 2026	201-500	195 contacts →
	Exact match “Impulsamos la sostenibilidad empresarial con soluciones técnicas y reales.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
12	Green World Renewable Energy LLC	Exact match	Brooklyn, MD, United StatesHQ recorded Oct 9, 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 · Oct 9, 2026 · View company records in RevenueBase
13	Ecorp Consulting, INC	Exact match	Rocklin, CA, United StatesHQ recorded Oct 9, 2026	51-200	173 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
14	Lead Consultancy And Engineering Services India PVT LTD	Exact match	Bangalore, IndiaHQ recorded Oct 9, 2026	51-200	170 contacts →
	Exact match “LEAD Consultancy & Engineering Services (India) Private Limited (LCES) has been started by a team of qualified professionals with vast experience and expertise in the areas of…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
15	Sunkonnect PTE LTD	Exact match	SingaporeHQ recorded Oct 9, 2026	201-500	169 contacts →
	Exact match “Sunkonnect is a leading energy transition and renewable energy consulting company delivering end-to-end engineering, quality assurance, project management consultancy, and…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
16	STOK	Exact match	San Francisco, CA, United StatesHQ recorded Oct 9, 2026	51-200	153 contacts →
	Exact match “Stok leads organizations to decarbonize now.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
17	Ecos Chile	Exact match	Providencia, ChileHQ recorded Oct 9, 2026	51-200	141 contacts →
	Exact match “ECOS (Environmental Compliance Services) es una empresa de asesoría y consultoría dedicada a proveer servicios especializados orientados a la gestión del cumplimiento ambiental y…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
18	Four Seasons Environmental, INC	Exact match	Monroe, OH, United StatesHQ recorded Oct 9, 2026	201-500	139 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
19	Consultus	Exact match	Leicester, United KingdomHQ recorded Oct 9, 2026	51-200	133 contacts →
	Exact match “Recognised as the Consultancy of the Year in 2021 by Energy Live News, Consultus delivers world-class consulting, buying and management services for Business Energy and Business…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
20	Spheros Environmental	Exact match	Denver, CO, United StatesHQ recorded Oct 9, 2026	201-500	132 contacts →
	Exact match “Environmental insight for complex real-world decisions Spheros Environmental helps clients make clear, defensible decisions in complex environments.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
21	Greentree Global	Exact match	Noida, IndiaHQ recorded Oct 9, 2026	51-200	130 contacts →
	Exact match “GreenTree Global is one of the leading Sustainability Consulting organisations providing Energy Efficiency & Climate Change Services like Integrated Sustainability Services…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
22	ZTP	Exact match	London, United KingdomHQ recorded Oct 9, 2026	51-200	128 contacts →
	Exact match “At ZTP, we’re committed to accelerating the transition to a more sustainable future by reducing the negative impact of human activity on our planet - ecologically, financially…” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
23	DGE Sverige	Exact match	Kalmar, SwedenHQ recorded Oct 9, 2026	11-50	128 contacts →
	Exact match “DGE i Sverige grundades 2004 med tydligt fokus på miljöfrågor, kundrelationer och medarbetare.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
24	Longevity Partners	Exact match	London, United KingdomHQ recorded Oct 9, 2026	51-200	128 contacts →
	Exact match “Longevity Partners is a multidisciplinary energy and sustainability consultancy.” Recorded in the RevenueBase company graph · Oct 9, 2026 · View company records in RevenueBase
25	PKV	Exact match	Brno, Czech RepublicHQ recorded Oct 9, 2026	51-200	120 contacts →
	Exact match “We create a sustainable future.” Recorded in the RevenueBase company graph · Oct 9, 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 “clean energy compliance 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 5,556 clean energy compliance consultants worldwide

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Clean energy compliance consultants worldwide at a glance

As of Oct 9, 2026

30.0%Verified-email coverage

6.5Average contacts per company

1-10Median size (employees)

1.6%Largest-city concentration · London

Oct 9, 2026Page data refreshed

Companies by employee count

1-10

4,080

11-50

1,236

51-200

185

201-500

501-1,000

1,001-5,000

5,001-10,000

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 clean energy compliance consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “clean energy compliance 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. 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 10,797 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 9, 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.

Clean energy compliance consultants by location

32 lists · largest first

Every Clean energy compliance consultants 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 “clean energy compliance consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many clean energy compliance consultants are there worldwide?

RevenueBase identified 5,556 company matches for clean energy compliance consultants worldwide 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?

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

Which country has the most clean energy compliance consultants?

The United States leads with 735 companies, followed by Brazil (383) and the United Kingdom (366). Every clean energy compliance consultants list by country and city is linked on this page.

Which city has the most clean energy compliance consultants?

London leads with 91 company records, followed by Sao Paulo (64) and Paris (45).

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 10,797 professional contacts with verified work emails tracked across these 5,556 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 9, 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.