Company lists · Data refreshed September 2026

Top 25 Energy sector accounting firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 8,950 companies tracked

RevenueBase identified 8,950 energy sector accounting firms worldwide as of September 2026 and tracks 79,770 professional contacts across them, including 21,017 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers energy sector accounting firms worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026. Country and city lists for energy sector accounting firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

8,950Companies

79,770Contacts tracked

21,017Verified emails

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The 25 largest energy sector accounting firms worldwide

Ranked by team size

Top 25 of 8,950 energy sector accounting firms worldwide, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to energy sector accounting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	BDO Brazil	Indirect evidence	Sp, BrazilHQ checked Sep 28, 2026	1,001-5,000	1,791 contacts →
	Indirect evidence “Presidida por Raul Corrêa da Silva, a BDO RCS foi fundada em 2001 e desde então mantém participação expressiva no mercado de auditorias.” Source: RevenueBase Database · checked Sep 28, 2026
2	Grant Thornton Sweden	Indirect evidence	Stockholm, SwedenHQ checked Sep 28, 2026	1,001-5,000	1,724 contacts →
	Indirect evidence “Grant Thornton är ett ledande revisions- och rådgivningsföretag med över 1400 medarbetare som erbjuder tjänster inom revision, skatt, redovisning och specialistrådgivning.” Source: RevenueBase Database · checked Sep 28, 2026
3	Willdan	Indirect evidence	Anaheim, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	851 contacts →
	Indirect evidence “Willdan (NASDAQ: WLDN) provides professional consulting and technical services to utilities, public agencies and private industry throughout the United States.” Source: RevenueBase Database · checked Sep 28, 2026
4	Pioneer Energy Services	Partial evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	770 contacts →
	Partial evidence “Pioneer Energy Services is now Patterson-UTI” Source: RevenueBase Database · checked Sep 28, 2026
5	Novogradac & Company LLP	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	501-1,000	619 contacts →
	Partial evidence “Novogradac is among the nation’s top 40 certified public accounting and consulting firms with more than 25 offices nationwide.” Source: RevenueBase Database · checked Sep 28, 2026
6	BDO Israel	Partial evidence	Tel Aviv, IsraelHQ checked Sep 28, 2026	1,001-5,000	574 contacts →
	Partial evidence “BDO Israel is a dynamic and business oriented accounting and consulting firm, ranking amongst the five leading industry firms in Israel and part of the international network BDO.” Source: RevenueBase Database · checked Sep 28, 2026
7	MG Contécnica	Indirect evidence	São Paulo, BrazilHQ checked Sep 28, 2026	501-1,000	533 contacts →
	Indirect evidence “A MG Contécnica é considerada um dos maiores escritórios de consultoria empresarial do mercado, com vasta experiência e com grande diferencial em serviços contábeis a empresa…” Source: RevenueBase Database · checked Sep 28, 2026
8	Crowe Mackay LLP	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 28, 2026	201-500	402 contacts →
	Indirect evidence “Crowe MacKay LLP is a vibrant team of trusted advisors in eight cities across western and northern Canada.” Source: RevenueBase Database · checked Sep 28, 2026
9	Berkowitz Pollack Brant Advisors Cpas	Indirect evidence	Miami, FL, United StatesHQ checked Sep 28, 2026	201-500	361 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
10	ETP CC	Strong evidence	AustraliaHQ checked Sep 28, 2026	n/a	320 contacts →
	Strong evidence “Management Consulting in the Energy Sector” Source: RevenueBase Database · checked Sep 28, 2026
11	Enzen Global Solutions	Partial evidence	Bengaluru, IndiaHQ checked Sep 28, 2026	1,001-5,000	277 contacts →
	Partial evidence “Enzen Global Solutions - India is part of the Enzen Group, a global, professional, knowledge practice that focuses on gaining, refining and sharing expertise in the energy and…” Source: RevenueBase Database · checked Sep 28, 2026
12	Gursey Schneider LLP	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	201-500	261 contacts →
	Partial evidence “Gursey \| Schneider LLP is a premier Los Angeles accounting firm headquartered in Century City, the center of the financial and entertainment community.” Source: RevenueBase Database · checked Sep 28, 2026
13	Opportune	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	201-500	258 contacts →
	Partial evidence “Opportune LLP is a leading global business advisory firm focused on adding value to clients across multiple industries with preeminence in energy.” Source: RevenueBase Database · checked Sep 28, 2026
14	Kindercare Learing Center	Partial evidence	Portland, OR, United StatesHQ checked Sep 28, 2026	n/a	257 contacts →
	Partial evidence “Kindercare Learing Center is an Accounting company located in 650 NE Holladay St # 1400, Portland, Oregon, United States.” Source: RevenueBase Database · checked Sep 28, 2026
15	TJT	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 28, 2026	201-500	231 contacts →
	Indirect evidence “Thomas, Judy and Tucker, P.A.” Source: RevenueBase Database · checked Sep 28, 2026
16	Sgurrenergy	Partial evidence	Pune, IndiaHQ checked Sep 28, 2026	201-500	226 contacts →
	Partial evidence “SgurrEnergy was originally established in Glasgow, UK in 2002 with an aim to excel in renewable energy consulting.” Source: RevenueBase Database · checked Sep 28, 2026
17	Lauterbach & Amen	Partial evidence	Naperville, IL, United StatesHQ checked Sep 28, 2026	201-500	223 contacts →
	Partial evidence “Lauterbach & Amen, LLP (L&A), established in 1997 by partners Sherry Lauterbach and Ron Amen, is a reputable public accounting firm known for its unwavering dedication to quality…” Source: RevenueBase Database · checked Sep 28, 2026
18	KEB	Indirect evidence	Midwest, IL, United StatesHQ checked Sep 28, 2026	51-200	212 contacts →
	Indirect evidence “Founded in 1931, Kerber, Eck & Braeckel LLP (KEB) is a mid-sized firm of certified public accountants and management consultants with eight offices in three Midwestern states.” Source: RevenueBase Database · checked Sep 28, 2026
19	Sltconsult Contabilidade E Gestão Empresarial	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 28, 2026	201-500	194 contacts →
	Indirect evidence “Na SLT, somos um time composto por mais de 200 profissionais altamente capacitados, especializados em transformar estratégias em resultados tangíveis.” Source: RevenueBase Database · checked Sep 28, 2026
20	Porte Brown LLC	Partial evidence	Elk Grove Village, IL, United StatesHQ checked Sep 28, 2026	51-200	191 contacts →
	Partial evidence “Porte Brown LLC is a full service accounting and consulting firm headquartered in the Chicago suburb of Elk Grove Village, Illinois.” Source: RevenueBase Database · checked Sep 28, 2026
21	BDO Zambia Limited	Partial evidence	Rhodes Park, ZambiaHQ checked Sep 28, 2026	51-200	186 contacts →
	Partial evidence “About BDO ZAMBIA BDO Zambia is a firm of public accountants, registered with the Zambia Institute of Chartered Accountants, providing audit, accounting, taxation, management and…” Source: RevenueBase Database · checked Sep 28, 2026
22	Utilicast	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 28, 2026	201-500	181 contacts →
	Indirect evidence “Utilicast is more than just a consulting company.” Source: RevenueBase Database · checked Sep 28, 2026
23	BCA	Indirect evidence	Asunción, ParaguayHQ checked Sep 28, 2026	51-200	180 contacts →
	Indirect evidence “Fundada en 1956 como uno de los primeros estudios de servicios de contabilidad y asesoramiento económico e impositivo de la República del Paraguay con el nombre de Estudio…” Source: RevenueBase Database · checked Sep 28, 2026
24	Jackson Thornton	Partial evidence	Montgomery, AL, United StatesHQ checked Sep 28, 2026	51-200	177 contacts →
	Partial evidence “Jackson Thornton, an accounting and consulting firm of more than 200 accountants and business consultants, applies more than a century of experience to serve over clients across a…” Source: RevenueBase Database · checked Sep 28, 2026
25	Energobit	Strong evidence	Cluj-napoca, RomaniaHQ checked Sep 28, 2026	501-1,000	176 contacts →
	Strong evidence “We are a competitive, strong and trustworthy company in the sector of major electrical energy players.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: energy sector accounting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names energy sector accounting firms.
Partial evidence: Its own public description names part of energy sector accounting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy sector accounting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 8,950 energy sector accounting firms worldwide

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Energy sector accounting firms worldwide at a glance

As of Sep 28, 2026

26.3%Verified-email coverage

8.9Average contacts per company

1-10Median size (employees)

2.6%Largest-city concentration · Sao Paulo

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

5,854

11-50

2,506

51-200

430

201-500

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among energy sector accounting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for energy sector accounting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “energy sector accounting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names energy sector accounting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among energy sector accounting firms, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 21,017 across the full list. 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.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Energy sector accounting firms by location

40 lists · largest first

Every Energy sector accounting 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names energy sector accounting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many energy sector accounting firms are there worldwide?

RevenueBase identified 8,950 energy sector accounting firms worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

BDO Brazil, headquartered in Sp, tops this list with the largest team on record.

Which country has the most energy sector accounting firms?

The United States leads with 1,470 companies, followed by Brazil (1,347) and France (660). Every energy sector accounting firms list by country and city is linked on this page.

Which city has the most energy sector accounting firms?

Sao Paulo leads with 230 headquartered companies, followed by Paris (137) and London (112).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 21,017 verified decision-maker contacts tracked across these 8,950 companies.

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 Smart Search, 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.