Company lists · Data refreshed October 2026

Top 25 Energy compliance and audit firms worldwide

Name: Energy compliance and audit firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 6,711 companies tracked

RevenueBase identified 6,711 company matches for energy compliance and audit firms worldwide as of October 2026 and tracks 47,159 professional contacts across them, including 14,699 with verified work emails. The United States is the largest market and Paris the largest hub.

This list covers company matches for energy compliance and audit 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 October 12, 2026. Country and city lists for energy compliance and audit 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 Oct 12, 2026 How this list was built

6,711Companies

47,159Contacts tracked

14,699Verified emails

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The 25 largest energy compliance and audit firms worldwide

Ranked by team size

Top 25 of 6,711 company matches for energy compliance and audit firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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	Clearesult	Exact match	Austin, TX, United StatesHQ recorded Oct 12, 2026	1,001-5,000	2,206 contacts →
	Exact match “CLEAResult is the largest provider of energy efficiency, energy transition and energy sustainability services in North America.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	Willdan	Exact match	Anaheim, CA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	872 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 · Oct 12, 2026 · View company records in RevenueBase
3	Veolia Industries Global Solutions	Exact match	Aubervilliers, FranceHQ recorded Oct 12, 2026	1,001-5,000	429 contacts →
	Exact match “Veolia Industries Global Solutions est devenu Veolia Energie Performance depuis le 1er juin 2025.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	International Energy Services Limited	Exact match	Lagos, NigeriaHQ recorded Oct 12, 2026	201-500	410 contacts →
	Exact match “International Energy Services Limited (IESL) – Key Company Information IESL was registered in Nigeria in 1990 as an indigenous energy services company.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	TRIO	Exact match	Irvine, CA, United StatesHQ recorded Oct 12, 2026	201-500	387 contacts →
	Exact match “We are Trio – global energy and sustainability advisors.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	NUS Consulting Group	Exact match	Park Ridge, NJ, United StatesHQ recorded Oct 12, 2026	201-500	360 contacts →
	Exact match “National Utility Service, Inc.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	Deode Energia	Exact match	Juiz De Fora, BrazilHQ recorded Oct 12, 2026	201-500	313 contacts →
	Exact match “A DEODE Energia foi fundada em 2012 proveniente da HF Energy.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	Cascade Energy	Exact match	Portland, OR, United StatesHQ recorded Oct 12, 2026	201-500	301 contacts →
	Exact match “At Cascade Energy, we believe in better.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	PEG	Exact match	Fairfax, VA, United StatesHQ recorded Oct 12, 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 12, 2026 · View company records in RevenueBase
10	Frontier Energy, INC	Exact match	Pleasanton, CA, United StatesHQ recorded Oct 12, 2026	51-200	213 contacts →
	Exact match “Frontier Energy is a professional services firm that excels in market transformation.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	Dalkia Energy Solutions	Exact match	Beverly, MA, United StatesHQ recorded Oct 12, 2026	201-500	213 contacts →
	Exact match “Dalkia Energy Solutions, a subsidiary of the EDF (Électricité de France) Group, is a national leader in energy efficiency and sustainability for commercial, industrial, and…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	D2o	Exact match	Jaipur, IndiaHQ recorded Oct 12, 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 12, 2026 · View company records in RevenueBase
13	Bright Power	Exact match	New York, NY, United StatesHQ recorded Oct 12, 2026	51-200	201 contacts →
	Exact match “Bright Power is a leading provider of energy efficiency and decarbonization solutions for the real estate industry.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	Ex'im	Exact match	La Madeleine, FranceHQ recorded Oct 12, 2026	201-500	200 contacts →
	Exact match “Depuis plus de 20 ans, EX’IM s’engage dans la transition énergétique pour adapter les bâtiments (logements, entreprises, collectivités) aux enjeux de demain.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	Nexant	Exact match	Half Moon Bay, CA, United StatesHQ recorded Oct 12, 2026	201-500	189 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 · Oct 12, 2026 · View company records in RevenueBase
16	CFP Energy	Exact match	London, United KingdomHQ recorded Oct 12, 2026	201-500	173 contacts →
	Exact match “CFP Energy is a leading provider of energy and environmental solutions for industrial and commercial clients.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	Lead Consultancy And Engineering Services India PVT LTD	Exact match	Bangalore, IndiaHQ recorded Oct 12, 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 12, 2026 · View company records in RevenueBase
18	Elect Energy, INC	Exact match	Plano, TX, United StatesHQ recorded Oct 12, 2026	n/a	166 contacts →
	Exact match “We're your advocates.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	ZEMBL	Exact match	Sydney, AustraliaHQ recorded Oct 12, 2026	51-200	158 contacts →
	Exact match “We help businesses buy better energy, saving them time and improving their bottom line.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	ILN Consulting	Exact match	Envigado, ColombiaHQ recorded Oct 12, 2026	51-200	152 contacts →
	Exact match “ILN Consulting is a leading energy consultancy firm, driven by a team of professionals with deep expertise in the oil, gas, mining, and alternative energy sectors.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Concord Engineering Group, INC	Exact match	Voorhees, NJ, United StatesHQ recorded Oct 12, 2026	51-200	148 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	accenta.ai	Exact match	Boulogne-billancourt, FranceHQ recorded Oct 12, 2026	51-200	142 contacts →
	Exact match “Accenta aide les acteurs de l’immobilier à maîtriser leurs charges, valoriser leurs actifs et répondre aux exigences réglementaires, grâce à la performance énergie-carbone.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	Four Seasons Environmental, INC	Exact match	Monroe, OH, United StatesHQ recorded Oct 12, 2026	201-500	139 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Sain Engineering Associates INC	Exact match	Birmingham, AL, United StatesHQ recorded Oct 12, 2026	51-200	138 contacts →
	Exact match “Sain Engineering Associates, Inc.(SEA) is a U.S.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	Indoor Energy	Exact match	Stockholm, SwedenHQ recorded Oct 12, 2026	201-500	132 contacts →
	Exact match “Våra kunder har de energieffektivaste fastigheterna!” Recorded in the RevenueBase company graph · Oct 12, 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 compliance and audit 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 6,711 energy compliance and audit firms worldwide

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Energy compliance and audit firms worldwide at a glance

As of Oct 12, 2026

31.2%Verified-email coverage

7.0Average contacts per company

1-10Median size (employees)

1.3%Largest-city concentration · Paris

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

4,636

11-50

1,661

51-200

312

201-500

501-1,000

1,001-5,000

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 compliance and audit firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “energy compliance and audit 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 14,699 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 12, 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 compliance and audit firms by location

32 lists · largest first

Every Energy compliance and audit 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 compliance and audit firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy compliance and audit firms are there worldwide?

RevenueBase identified 6,711 company matches for energy compliance and audit firms 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?

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

Which country has the most energy compliance and audit firms?

The United States leads with 1,087 companies, followed by France (629) and Spain (469). Every energy compliance and audit firms list by country and city is linked on this page.

Which city has the most energy compliance and audit firms?

Paris leads with 85 company records, followed by Madrid (76) and London (54).

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 14,699 professional contacts with verified work emails tracked across these 6,711 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 12, 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.