Company lists · Data refreshed November 2026

Top 25 Energy savings engineering services worldwide

Name: Energy savings engineering services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 5, 2026 10,281 companies tracked

RevenueBase identified 10,281 company matches for energy savings engineering services worldwide as of November 2026 and tracks 89,094 professional contacts across them, including 27,622 with verified work emails. The United States is the largest market and Madrid the largest hub.

This list covers company matches for energy savings engineering services 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 November 5, 2026. Country and city lists for energy savings engineering services 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 Nov 5, 2026 How this list was built

10,281Companies

89,094Contacts tracked

27,622Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest energy savings engineering services worldwide

Ranked by team size

Top 25 of 10,281 company matches for energy savings engineering services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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	British GAS	Exact match	Windsor, United KingdomHQ recorded Nov 5, 2026	10001+	9,964 contacts →
	Exact match “Taking care of things.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2	Clearesult	Exact match	Austin, TX, United StatesHQ recorded Nov 5, 2026	1,001-5,000	2,264 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 · Nov 5, 2026 · View company records in RevenueBase
3	Ameresco	Exact match	Framingham, MA, United StatesHQ recorded Nov 5, 2026	1,001-5,000	1,570 contacts →
	Exact match “Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure company delivering integrated solutions to create reliable power and modernize infrastructure.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4	PAE	Exact match	Portland, NV, United StatesHQ recorded Nov 5, 2026	201-500	843 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 · Nov 5, 2026 · View company records in RevenueBase
5	3e Engenharia EM Eficiencia Energetica	Exact match	BrazilHQ recorded Nov 5, 2026	201-500	558 contacts →
	Exact match “A 3E Engenharia atua nacionalmente, oferecendo soluções para empresas concessionárias de serviços públicos, no planejamento, gestão, execução e inovação em projetos de Eficiência…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6	Sitelogiq	Exact match	Minneapolis, MN, United StatesHQ recorded Nov 5, 2026	501-1,000	503 contacts →
	Exact match “SitelogIQ provides design, engineering, and construction management services that help organizations nationwide modernize their facilities and infrastructure.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7	Noresco	Exact match	Westborough, NJ, United StatesHQ recorded Nov 5, 2026	201-500	496 contacts →
	Exact match “NORESCO, an OPTERRA company, helps customers modernize aging building systems and upgrade energy and water infrastructure to meet evolving demands.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8	Budderfly	Exact match	Shelton, CT, United StatesHQ recorded Nov 5, 2026	201-500	393 contacts →
	Exact match “Budderfly is redefining how energy efficiency, resilience, and grid participation can work together across America’s commercial sector.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9	TRIO	Exact match	Irvine, MA, United StatesHQ recorded Nov 5, 2026	201-500	393 contacts →
	Exact match “We are Trio – global energy and sustainability advisors.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10	MCW Group Of Companies	Exact match	Toronto, MB, CanadaHQ recorded Nov 5, 2026	201-500	379 contacts →
	Exact match “Since 1964 the MCW Group has built a solid reputation for the delivery of Professional Consulting Engineering Services, Energy Management Services, and Engineering Development…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11	ترشيد Tarshid	Exact match	Riyadh, Saudi ArabiaHQ recorded Nov 5, 2026	201-500	368 contacts →
	Exact match “The National Energy Services Company (TARSHID) is a national company wholly owned by the Public Investment Fund (PIF).” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12	Deode Energia	Exact match	Juiz De Fora, BrazilHQ recorded Nov 5, 2026	201-500	323 contacts →
	Exact match “A DEODE Energia foi fundada em 2012 proveniente da HF Energy.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13	Cascade Energy	Exact match	Portland, OR, United StatesHQ recorded Nov 5, 2026	201-500	304 contacts →
	Exact match “At Cascade Energy, we believe in better.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14	Ecosystem	Exact match	Québec, NY, CanadaHQ recorded Nov 5, 2026	201-500	251 contacts →
	Exact match “At Ecosystem, we believe in building meaningful relationships with both our clients and employees.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15	Lime Energy	Exact match	Newark, NJ, United StatesHQ recorded Nov 5, 2026	201-500	250 contacts →
	Exact match “Lime Energy is building a new energy future.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16	Allana Buick & Bers, INC	Exact match	Palo Alto, NC, United StatesHQ recorded Nov 5, 2026	201-500	245 contacts →
	Exact match “Allana Buick & Bers, Inc.(ABB) is a leading Architectural Engineering firm specializing in making buildings perform better by making them energy efficient and longer lasting with…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17	Prime Energy	Exact match	Sao Paulo, BrazilHQ recorded Nov 5, 2026	51-200	237 contacts →
	Exact match “Empresa voltada a projetos de Otimização e Eficiêntização no uso da energia elétrica.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18	Pageau Morel ET Associés INC	Exact match	Montréal, QC, CanadaHQ recorded Nov 5, 2026	201-500	232 contacts →
	Exact match “Fondée en 1956, PAGEAU MOREL est une entreprise spécialisée dans les domaines de l'ingénierie mécanique et électrique, de l'efficacité énergétique et de l'écoconception.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19	Efficiencyone	Exact match	Dartmouth, NS, CanadaHQ recorded Nov 5, 2026	51-200	228 contacts →
	Exact match “EfficiencyOne is a leading efficiency expert.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20	Dalkia Energy Solutions	Exact match	Beverly, MA, United StatesHQ recorded Nov 5, 2026	201-500	225 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 · Nov 5, 2026 · View company records in RevenueBase
21	PEG	Exact match	Fairfax, VA, United StatesHQ recorded Nov 5, 2026	201-500	223 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 · Nov 5, 2026 · View company records in RevenueBase
22	Frontier Energy, INC	Exact match	Pleasanton, CA, United StatesHQ recorded Nov 5, 2026	51-200	218 contacts →
	Exact match “Frontier Energy is a professional services firm that excels in market transformation.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23	Greenfoot Energy Solutions	Exact match	Moncton, BC, CanadaHQ recorded Nov 5, 2026	501-1,000	218 contacts →
	Exact match “Greenfoot Energy Solutions was established in 2014 by a group of energy experts dedicated to improving energy efficiency in Atlantic Canada.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24	D2o	Exact match	Jaipur, IndiaHQ recorded Nov 5, 2026	51-200	211 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 · Nov 5, 2026 · View company records in RevenueBase
25	Energy Management Collaborative EMC	Exact match	Minneapolis, MN, United StatesHQ recorded Nov 5, 2026	201-500	210 contacts →
	Exact match “EMC manages and scales turnkey energy efficiency solutions for Fortune 500 clients across their North American portfolios.” Recorded in the RevenueBase company graph · Nov 5, 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 savings engineering services”. 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 10,281 energy savings engineering services worldwide

See the full list, filter by size, metro and specialty, and access 27,622 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Energy savings engineering services worldwide at a glance

As of Nov 5, 2026

31.0%Verified-email coverage

8.7Average contacts per company

1-10Median size (employees)

1.1%Largest-city concentration · Madrid

Nov 5, 2026Page data refreshed

Companies by employee count

1-10

6,546

11-50

2,904

51-200

558

201-500

106

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 savings engineering services are linked below.
What qualifies: Company records worldwide whose business descriptions match “energy savings engineering services” 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 27,622 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 November 5, 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 savings engineering services by location

47 lists · largest first

Every Energy savings engineering services 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 savings engineering services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many energy savings engineering services are there worldwide?

RevenueBase identified 10,281 company matches for energy savings engineering services worldwide as of November 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?

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

Which country has the most energy savings engineering services?

The United States leads with 1,582 companies, followed by France (837) and Spain (712). Every energy savings engineering services list by country and city is linked on this page.

Which city has the most energy savings engineering services?

Madrid leads with 117 company records, followed by Paris (110) and London (70).

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 27,622 professional contacts with verified work emails tracked across these 10,281 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 November 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 10,281 energy savings engineering services worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.