Company lists · Data refreshed October 2026

Top 25 Decentralized energy consultants worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Oct 11, 2026 20,937 companies tracked

RevenueBase identified 20,937 company matches for decentralized energy consultants worldwide as of October 2026 and tracks 327,957 professional contacts across them, including 90,045 with verified work emails. The United States is the largest market and Madrid the largest hub.

This list covers company matches for decentralized energy 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 11, 2026. Country and city lists for decentralized energy 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 11, 2026 How this list was built

20,937Companies

327,957Contacts tracked

90,045Verified emails

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The 25 largest decentralized energy consultants worldwide

Ranked by team size

Top 25 of 20,937 company matches for decentralized energy consultants worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 11, 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	Johnson Controls	Exact match	Cork, IrelandHQ recorded Oct 11, 2026	10001+	54,046 contacts →
	Exact match “Johnson Controls is a global leader in thermal management, mission-critical building systems, energy efficiency and decarbonization.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
2	British GAS	Exact match	Windsor, United KingdomHQ recorded Oct 11, 2026	10001+	9,535 contacts →
	Exact match “Taking care of things.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
3	Dalkia	Exact match	Saint-andré-lez-lille, FranceHQ recorded Oct 11, 2026	10001+	8,823 contacts →
	Exact match “Dalkia : ensemble, relevons le défi climatique!” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
4	KENT	Exact match	Dubai, United Arab EmiratesHQ recorded Oct 11, 2026	10001+	7,369 contacts →
	Exact match “We design, build and maintain the assets that power the world for today and make it future-ready for tomorrow.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
5	Sargent & Lundy	Exact match	Chicago, United StatesHQ recorded Oct 11, 2026	1,001-5,000	4,341 contacts →
	Exact match “Sargent & Lundy is one of the world’s longest-standing full-service architect engineering firms.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
6	Generac	Exact match	Waukesha, WI, United StatesHQ recorded Oct 11, 2026	5,001-10,000	3,918 contacts →
	Exact match “Generac is the total energy solutions company powering a smarter world.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
7	ENPAL	Exact match	Berlin, GermanyHQ recorded Oct 11, 2026	5,001-10,000	3,325 contacts →
	Exact match “Enpal is Europe's leading new energy company.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
8	FTI	Exact match	Menasha, WI, United StatesHQ recorded Oct 11, 2026	1,001-5,000	2,979 contacts →
	Exact match “Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
9	Shell Energy	Exact match	London, United KingdomHQ recorded Oct 11, 2026	1,001-5,000	2,589 contacts →
	Exact match “We help businesses manage energy needs, boost efficiency, control costs and achieve decarbonisation goals for a better energy future.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
10	Innio Group	Exact match	Munich, GermanyHQ recorded Oct 11, 2026	1,001-5,000	2,332 contacts →
	Exact match “INNIO Group is a global distributed energy solutions provider that delivers reliable, flexible, transient, decentralized, modular and efficient power.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
11	Clearesult	Exact match	Austin, TX, United StatesHQ recorded Oct 11, 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 11, 2026 · View company records in RevenueBase
12	Omexom	Exact match	Nanterre, FranceHQ recorded Oct 11, 2026	5,001-10,000	2,023 contacts →
	Exact match “With today's global energy sector undergoing constant change, Omexom works with its clients in delivering on the promises of the energy transition.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
13	Enercon Services, INC	Exact match	Kennesaw, GA, United StatesHQ recorded Oct 11, 2026	1,001-5,000	1,980 contacts →
	Exact match “ENERCON is a multi-discipline engineering and environmental engineering support services firm focused on delivering safe and efficient solutions for the power, data center and…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
14	Fluence	Exact match	Arlington, VA, United StatesHQ recorded Oct 11, 2026	1,001-5,000	1,950 contacts →
	Exact match “To achieve our mission, we design, deploy, and operate the world’s most advanced modular energy storage products, comprehensive lifecycle services, and AI-enabled asset management…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
15	Rehlko	Exact match	Milwaukee, WI, United StatesHQ recorded Oct 11, 2026	5,001-10,000	1,864 contacts →
	Exact match “Rehlko is a global leader in energy resilience, delivering the solutions critical to sustain and improve life.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
16	Westwood Professional Services	Exact match	Plano, TX, United StatesHQ recorded Oct 11, 2026	1,001-5,000	1,801 contacts →
	Exact match “At Westwood, our purpose is to create a better world for people through our work.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
17	Ameresco	Exact match	Framingham, MA, United StatesHQ recorded Oct 11, 2026	1,001-5,000	1,513 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 · Oct 11, 2026 · View company records in RevenueBase
18	GE Digital	Exact match	San Ramon, CA, United StatesHQ recorded Oct 11, 2026	1,001-5,000	1,306 contacts →
	Exact match “At GE Digital, our focus is clear: delivering software that accelerates a new era of energy.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
19	Aden Group	Exact match	SingaporeHQ recorded Oct 11, 2026	10001+	1,203 contacts →
	Exact match “Aden Group is a Euro-Asian enterprise delivering comprehensive solutions to boost decarbonization, productivity and energy transition in the built environment.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
20	Dalkia UK	Exact match	London, United KingdomHQ recorded Oct 11, 2026	5,001-10,000	1,110 contacts →
	Exact match “Together, we’re delivering technical solutions for a better society and an Electric Britain Dalkia is one of the UK’s leading technical and energy services providers at the…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
21	Penspen	Exact match	London, United KingdomHQ recorded Oct 11, 2026	1,001-5,000	1,056 contacts →
	Exact match “Penspen designs, maintains, and optimises energy infrastructure to improve access to secure and sustainable energy for communities worldwide.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
22	Wärtsilä Energy	Exact match	Helsinki, FinlandHQ recorded Oct 11, 2026	10001+	965 contacts →
	Exact match “Wärtsilä leads the transition towards a 100% renewable energy future.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
23	Willdan	Exact match	Anaheim, CA, United StatesHQ recorded Oct 11, 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 11, 2026 · View company records in RevenueBase
24	PAE	Exact match	Portland, OR, United StatesHQ recorded Oct 11, 2026	201-500	835 contacts →
	Exact match “PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase
25	Cleanmax	Exact match	Mumbai, IndiaHQ recorded Oct 11, 2026	201-500	809 contacts →
	Exact match “CleanMax is India’s largest commercial and industrial (“C&I”) renewable energy provider with 3 GW of operational, owned and managed capacity.” Recorded in the RevenueBase company graph · Oct 11, 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 “decentralized energy 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 20,937 decentralized energy consultants worldwide

See the full list, filter by size, metro and specialty, and access 90,045 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Decentralized energy consultants worldwide at a glance

As of Oct 11, 2026

27.5%Verified-email coverage

15.7Average contacts per company

1-10Median size (employees)

0.8%Largest-city concentration · Madrid

Oct 11, 2026Page data refreshed

Companies by employee count

1-10

11,851

11-50

6,807

51-200

1,645

201-500

320

501-1,000

1,001-5,000

106

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 decentralized energy consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “decentralized energy 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 90,045 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 11, 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.

Decentralized energy consultants by location

95 lists · largest first

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

How many decentralized energy consultants are there worldwide?

RevenueBase identified 20,937 company matches for decentralized energy 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?

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

Which country has the most decentralized energy consultants?

The United States leads with 3,167 companies, followed by Germany (1,318) and Brazil (1,286). Every decentralized energy consultants list by country and city is linked on this page.

Which city has the most decentralized energy consultants?

Madrid leads with 175 company records, followed by London (166) and Sao Paulo (135).

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 90,045 professional contacts with verified work emails tracked across these 20,937 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 11, 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.