Company lists · Data refreshed October 2026
Top 25 Energy efficiency audit companies worldwide
RevenueBase identified 5,504 company matches for energy efficiency audit companies worldwide as of October 2026 and tracks 37,631 professional contacts across them, including 11,258 with verified work emails. The United States is the largest market and Paris the largest hub.
This list covers company matches for energy efficiency audit companies 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 efficiency audit companies 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.
The 25 largest energy efficiency audit companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 472 contacts → | ||||
Exact match “AEI Consultants provides building, environmental, land and sustainability assessment and consulting services throughout North America.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 2 | 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 | |||||
| 3 | 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 | |||||
| 4 | 360 contacts → | ||||
Exact match “National Utility Service, Inc.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 5 | 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 | |||||
| 6 | 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 | |||||
| 7 | 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 | |||||
| 8 | 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 | |||||
| 9 | 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 | |||||
| 10 | 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 | |||||
| 11 | 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 | |||||
| 12 | 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 | |||||
| 13 | 154 contacts → | ||||
Exact match “DWA building services & energy consultants is a consultancy firm that offers research and consultancy services on the field of renewable energy and energy efficiency in the built…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 14 | 148 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 15 | 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 | |||||
| 16 | 139 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 17 | 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 | |||||
| 18 | 132 contacts → | ||||
Exact match “Våra kunder har de energieffektivaste fastigheterna!” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 19 | 131 contacts → | ||||
Exact match “We are a global provider of energy efficiency solutions for commercial buildings with five business offerings: HVAC Testing, Adjusting & Balancing, Intelli-Hood® Kitchen…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 20 | 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 12, 2026 · View company records in RevenueBase | |||||
| 21 | 129 contacts → | ||||
Exact match “Resalta is a leading European energy service company (ESCO) helping organizations reduce costs, lower emissions, and optimize energy use.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 22 | 129 contacts → | ||||
Exact match “Synergy Companies is the largest energy services companies in California and provides a comprehensive approach to energy efficiency and environmental solutions in both the…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 23 | 128 contacts → | ||||
Exact match “Longevity Partners is a multidisciplinary energy and sustainability consultancy.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 24 | 123 contacts → | ||||
Exact match “Michaels Energy is a veteran-owned energy consulting firm that exists to help businesses minimize waste and maximize value.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase | |||||
| 25 | 121 contacts → | ||||
Exact match “MPN Capital Markets is a full-service, energy management consulting firm that advises businesses, governments, non-governmental organizations, homeowners and not-for-profits.” 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 efficiency audit companies”. 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 5,504 energy efficiency audit companies worldwide
See the full list, filter by size, metro and specialty, and access 11,258 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Energy efficiency audit companies worldwide at a glance
As of Oct 12, 2026Companies by employee count
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 efficiency audit companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “energy efficiency audit companies” 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 11,258 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 efficiency audit companies by location
27 lists · largest firstEvery Energy efficiency audit companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Energy efficiency audit companies based in the United States898
- Energy efficiency audit companies based in France511
- Energy efficiency audit companies based in Germany367
- Energy efficiency audit companies based in Spain361
- Energy efficiency audit companies based in the United Kingdom316
- Energy efficiency audit companies based in Italy276
- Energy efficiency audit companies based in Canada189
- Energy efficiency audit companies based in the Netherlands144
- Energy efficiency audit companies based in India138
- Energy efficiency audit companies based in Australia118
- Energy efficiency audit companies based in Brazil115
- Energy efficiency audit companies based in Belgium111
- Energy efficiency audit companies based in Poland73
- Energy efficiency audit companies based in Switzerland70
- Energy efficiency audit companies based in Portugal62
- Energy efficiency audit companies based in Türkiye61
- Energy efficiency audit companies based in Mexico58
- Energy efficiency audit companies based in Ireland48
- Energy efficiency audit companies based in South Africa39
- Energy efficiency audit companies based in Chile37
- Energy efficiency audit companies based in Sweden32
- Energy efficiency audit companies based in Czechia31
Cities
- Energy efficiency audit companies based in Paris, France66
- Energy efficiency audit companies based in London, United Kingdom42
- Energy efficiency audit companies based in Toronto, Canada30
- Energy efficiency audit companies based in New York, United States29
- Energy efficiency audit companies based in Milan, Italy28
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 efficiency audit companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many energy efficiency audit companies are there worldwide?
RevenueBase identified 5,504 company matches for energy efficiency audit companies 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?
AEI Consultants tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most energy efficiency audit companies?
The United States leads with 898 companies, followed by France (511) and Germany (367). Every energy efficiency audit companies list by country and city is linked on this page.
Which city has the most energy efficiency audit companies?
Paris leads with 67 company records, followed by Madrid (57) and London (44).
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 11,258 professional contacts with verified work emails tracked across these 5,504 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.
Ready to reach these companies? Verified emails and direct dials for all 5,504 energy efficiency audit companies worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 energy efficiency audit companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 5,504 matching company records for energy efficiency audit companies worldwide, with 37,631 tracked contacts and 11,258 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 12, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 energy efficiency audit companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  AEI Consultantsaeiconsultants.comHQ: Walnut Creek, CA, United StatesReported employees: 201-500 | Walnut Creek, CA, United States | 201-500 | Exact match | 472 contacts → |
“AEI Consultants provides building, environmental, land and sustainability assessment and consulting services throughout North America.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Veolia Industries Global Solutionsindustries.veolia.comHQ: Aubervilliers, FranceReported employees: 1,001-5,000 | Aubervilliers, France | 1,001-5,000 | Exact match | 429 contacts → |
“Veolia Industries Global Solutions est devenu Veolia Energie Performance depuis le 1er juin 2025.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  TRIOtrioadvisory.comHQ: Irvine, CA, United StatesReported employees: 201-500 | Irvine, CA, United States | 201-500 | Exact match | 387 contacts → |
“We are Trio – global energy and sustainability advisors.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  NUS Consulting Groupnusconsulting.comHQ: Park Ridge, NJ, United StatesReported employees: 201-500 | Park Ridge, NJ, United States | 201-500 | Exact match | 360 contacts → |
“National Utility Service, Inc.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Deode Energiadeodenergia.comHQ: Juiz De Fora, BrazilReported employees: 201-500 | Juiz De Fora, Brazil | 201-500 | Exact match | 313 contacts → |
“A DEODE Energia foi fundada em 2012 proveniente da HF Energy.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Cascade Energycascadeenergy.comHQ: Portland, OR, United StatesReported employees: 201-500 | Portland, OR, United States | 201-500 | Exact match | 301 contacts → |
“At Cascade Energy, we believe in better.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  PEGpegenv.comHQ: Fairfax, VA, United StatesReported employees: 201-500 | Fairfax, VA, United States | 201-500 | Exact match | 216 contacts → |
“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 description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Dalkia Energy Solutionsdalkiasolutions.comHQ: Beverly, MA, United StatesReported employees: 201-500 | Beverly, MA, United States | 201-500 | Exact match | 213 contacts → |
“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 description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  D2odesign2occupancy.comHQ: Jaipur, IndiaReported employees: 51-200 | Jaipur, India | 51-200 | Exact match | 204 contacts → |
“Design2Occupancy Services LLP (D2O) is a leading organization providing a platform and solutions in Energy Efficiency Analysis and Energy Code Compliances, Climate Change…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Bright Powerbrightpower.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 201 contacts → |
“Bright Power is a leading provider of energy efficiency and decarbonization solutions for the real estate industry.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Ex'imexim.frHQ: La Madeleine, FranceReported employees: 201-500 | La Madeleine, France | 201-500 | Exact match | 200 contacts → |
“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 description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | HQ: Bangalore, IndiaReported employees: 51-200 | Bangalore, India | 51-200 | Exact match | 170 contacts → |
“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 description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Adviesbureau DWAdwa.nlHQ: Gouda, NetherlandsReported employees: 51-200 | Gouda, Netherlands | 51-200 | Exact match | 154 contacts → |
“DWA building services & energy consultants is a consultancy firm that offers research and consultancy services on the field of renewable energy and energy efficiency in the built…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Concord Engineering Group, INCconcord-engineering.comHQ: Voorhees, NJ, United StatesReported employees: 51-200 | Voorhees, NJ, United States | 51-200 | Exact match | 148 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 15 |  accenta.aiaccenta.aiHQ: Boulogne-billancourt, FranceReported employees: 51-200 | Boulogne-billancourt, France | 51-200 | Exact match | 142 contacts → |
“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 description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Four Seasons Environmental, INCfseinc.netHQ: Monroe, OH, United StatesReported employees: 201-500 | Monroe, OH, United States | 201-500 | Exact match | 139 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 |  Sain Engineering Associates INCsaineng.comHQ: Birmingham, AL, United StatesReported employees: 51-200 | Birmingham, AL, United States | 51-200 | Exact match | 138 contacts → |
“Sain Engineering Associates, Inc.(SEA) is a U.S.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Indoor Energyindoor.seHQ: Stockholm, SwedenReported employees: 201-500 | Stockholm, Sweden | 201-500 | Exact match | 132 contacts → |
“Våra kunder har de energieffektivaste fastigheterna!” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Melink Corporationmelinkcorp.comHQ: Milford, OH, United StatesReported employees: 51-200 | Milford, OH, United States | 51-200 | Exact match | 131 contacts → |
“We are a global provider of energy efficiency solutions for commercial buildings with five business offerings: HVAC Testing, Adjusting & Balancing, Intelli-Hood® Kitchen…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Greentree Globalgreentree.globalHQ: Noida, IndiaReported employees: 51-200 | Noida, India | 51-200 | Exact match | 130 contacts → |
“GreenTree Global is one of the leading Sustainability Consulting organisations providing Energy Efficiency & Climate Change Services like Integrated Sustainability Services…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Resaltaresalta.comHQ: Ljubljana, SloveniaReported employees: 51-200 | Ljubljana, Slovenia | 51-200 | Exact match | 129 contacts → |
“Resalta is a leading European energy service company (ESCO) helping organizations reduce costs, lower emissions, and optimize energy use.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Synergy Companiessynergycompanies.comHQ: Fresno, CA, United StatesReported employees: 501-1,000 | Fresno, CA, United States | 501-1,000 | Exact match | 129 contacts → |
“Synergy Companies is the largest energy services companies in California and provides a comprehensive approach to energy efficiency and environmental solutions in both the…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Longevity Partnerslongevity-partners.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 128 contacts → |
“Longevity Partners is a multidisciplinary energy and sustainability consultancy.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Michaels Energy- An Inc. 5000 Companymichaelsenergy.comHQ: La Crosse, WI, United StatesReported employees: 51-200 | La Crosse, WI, United States | 51-200 | Exact match | 123 contacts → |
“Michaels Energy is a veteran-owned energy consulting firm that exists to help businesses minimize waste and maximize value.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  MPN Capital Marketsmpncapitalmarkets.comHQ: Boston, ON, CanadaReported employees: 11-50 | Boston, ON, Canada | 11-50 | Exact match | 121 contacts → |
“MPN Capital Markets is a full-service, energy management consulting firm that advises businesses, governments, non-governmental organizations, homeowners and not-for-profits.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 5,504 company matches
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Energy efficiency audit companies: dataset insights
October 12, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
5,476 records in the displayed employee bands.
28 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 5,504 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 12, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Energy efficiency audit companies by location
27 lists · largest firstEvery Energy efficiency audit companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Energy efficiency audit companies based in the United States898
- Energy efficiency audit companies based in France511
- Energy efficiency audit companies based in Germany367
- Energy efficiency audit companies based in Spain361
- Energy efficiency audit companies based in the United Kingdom316
- Energy efficiency audit companies based in Italy276
- Energy efficiency audit companies based in Canada189
- Energy efficiency audit companies based in the Netherlands144
- Energy efficiency audit companies based in India138
- Energy efficiency audit companies based in Australia118
- Energy efficiency audit companies based in Brazil115
- Energy efficiency audit companies based in Belgium111
- Energy efficiency audit companies based in Poland73
- Energy efficiency audit companies based in Switzerland70
- Energy efficiency audit companies based in Portugal62
- Energy efficiency audit companies based in Türkiye61
- Energy efficiency audit companies based in Mexico58
- Energy efficiency audit companies based in Ireland48
- Energy efficiency audit companies based in South Africa39
- Energy efficiency audit companies based in Chile37
- Energy efficiency audit companies based in Sweden32
- Energy efficiency audit companies based in Czechia31
Cities
- Energy efficiency audit companies based in Paris, France66
- Energy efficiency audit companies based in London, United Kingdom42
- Energy efficiency audit companies based in Toronto, Canada30
- Energy efficiency audit companies based in New York, United States29
- Energy efficiency audit companies based in Milan, Italy28
Questions about this company list
What does Exact match mean for energy efficiency audit companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many energy efficiency audit companies did RevenueBase find worldwide?
The saved snapshot records 5,504 matching company records, 37,631 tracked contacts and 11,258 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 12, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 energy efficiency audit companies worldwide. Snapshot: October 12, 2026. https://revenuebase.ai/companies/browse/energy-efficiency-audit-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 energy efficiency audit companies worldwide
RevenueBase records 5,504 matching company records for energy efficiency audit companies worldwide, with 37,631 tracked contacts and 11,258 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 12, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 energy efficiency audit companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | AEI Consultantsaeiconsultants.com HQ: Walnut Creek, CA, United StatesReported employees: 201-500 | Walnut Creek, CA, United States | 201-500 | Exact match | 472 contacts → |
“AEI Consultants provides building, environmental, land and sustainability assessment and consulting services throughout North America.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Veolia Industries Global Solutionsindustries.veolia.com HQ: Aubervilliers, FranceReported employees: 1,001-5,000 | Aubervilliers, France | 1,001-5,000 | Exact match | 429 contacts → |
“Veolia Industries Global Solutions est devenu Veolia Energie Performance depuis le 1er juin 2025.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | TRIOtrioadvisory.com HQ: Irvine, CA, United StatesReported employees: 201-500 | Irvine, CA, United States | 201-500 | Exact match | 387 contacts → |
“We are Trio – global energy and sustainability advisors.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | NUS Consulting Groupnusconsulting.com HQ: Park Ridge, NJ, United StatesReported employees: 201-500 | Park Ridge, NJ, United States | 201-500 | Exact match | 360 contacts → |
“National Utility Service, Inc.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Deode Energiadeodenergia.com HQ: Juiz De Fora, BrazilReported employees: 201-500 | Juiz De Fora, Brazil | 201-500 | Exact match | 313 contacts → |
“A DEODE Energia foi fundada em 2012 proveniente da HF Energy.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Cascade Energycascadeenergy.com HQ: Portland, OR, United StatesReported employees: 201-500 | Portland, OR, United States | 201-500 | Exact match | 301 contacts → |
“At Cascade Energy, we believe in better.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | PEGpegenv.com HQ: Fairfax, VA, United StatesReported employees: 201-500 | Fairfax, VA, United States | 201-500 | Exact match | 216 contacts → |
“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 description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Dalkia Energy Solutionsdalkiasolutions.com HQ: Beverly, MA, United StatesReported employees: 201-500 | Beverly, MA, United States | 201-500 | Exact match | 213 contacts → |
“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 description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | D2odesign2occupancy.com HQ: Jaipur, IndiaReported employees: 51-200 | Jaipur, India | 51-200 | Exact match | 204 contacts → |
“Design2Occupancy Services LLP (D2O) is a leading organization providing a platform and solutions in Energy Efficiency Analysis and Energy Code Compliances, Climate Change…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Bright Powerbrightpower.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 201 contacts → |
“Bright Power is a leading provider of energy efficiency and decarbonization solutions for the real estate industry.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Ex'imexim.fr HQ: La Madeleine, FranceReported employees: 201-500 | La Madeleine, France | 201-500 | Exact match | 200 contacts → |
“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 description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | HQ: Bangalore, IndiaReported employees: 51-200 | Bangalore, India | 51-200 | Exact match | 170 contacts → |
“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 description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Adviesbureau DWAdwa.nl HQ: Gouda, NetherlandsReported employees: 51-200 | Gouda, Netherlands | 51-200 | Exact match | 154 contacts → |
“DWA building services & energy consultants is a consultancy firm that offers research and consultancy services on the field of renewable energy and energy efficiency in the built…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Concord Engineering Group, INCconcord-engineering.com HQ: Voorhees, NJ, United StatesReported employees: 51-200 | Voorhees, NJ, United States | 51-200 | Exact match | 148 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 15 | accenta.aiaccenta.ai HQ: Boulogne-billancourt, FranceReported employees: 51-200 | Boulogne-billancourt, France | 51-200 | Exact match | 142 contacts → |
“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 description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Four Seasons Environmental, INCfseinc.net HQ: Monroe, OH, United StatesReported employees: 201-500 | Monroe, OH, United States | 201-500 | Exact match | 139 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 17 | Sain Engineering Associates INCsaineng.com HQ: Birmingham, AL, United StatesReported employees: 51-200 | Birmingham, AL, United States | 51-200 | Exact match | 138 contacts → |
“Sain Engineering Associates, Inc.(SEA) is a U.S.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Indoor Energyindoor.se HQ: Stockholm, SwedenReported employees: 201-500 | Stockholm, Sweden | 201-500 | Exact match | 132 contacts → |
“Våra kunder har de energieffektivaste fastigheterna!” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Melink Corporationmelinkcorp.com HQ: Milford, OH, United StatesReported employees: 51-200 | Milford, OH, United States | 51-200 | Exact match | 131 contacts → |
“We are a global provider of energy efficiency solutions for commercial buildings with five business offerings: HVAC Testing, Adjusting & Balancing, Intelli-Hood® Kitchen…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Greentree Globalgreentree.global HQ: Noida, IndiaReported employees: 51-200 | Noida, India | 51-200 | Exact match | 130 contacts → |
“GreenTree Global is one of the leading Sustainability Consulting organisations providing Energy Efficiency & Climate Change Services like Integrated Sustainability Services…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Resaltaresalta.com HQ: Ljubljana, SloveniaReported employees: 51-200 | Ljubljana, Slovenia | 51-200 | Exact match | 129 contacts → |
“Resalta is a leading European energy service company (ESCO) helping organizations reduce costs, lower emissions, and optimize energy use.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Synergy Companiessynergycompanies.com HQ: Fresno, CA, United StatesReported employees: 501-1,000 | Fresno, CA, United States | 501-1,000 | Exact match | 129 contacts → |
“Synergy Companies is the largest energy services companies in California and provides a comprehensive approach to energy efficiency and environmental solutions in both the…” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Longevity Partnerslongevity-partners.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 128 contacts → |
“Longevity Partners is a multidisciplinary energy and sustainability consultancy.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Michaels Energy- An Inc. 5000 Companymichaelsenergy.com HQ: La Crosse, WI, United StatesReported employees: 51-200 | La Crosse, WI, United States | 51-200 | Exact match | 123 contacts → |
“Michaels Energy is a veteran-owned energy consulting firm that exists to help businesses minimize waste and maximize value.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | MPN Capital Marketsmpncapitalmarkets.com HQ: Boston, ON, CanadaReported employees: 11-50 | Boston, ON, Canada | 11-50 | Exact match | 121 contacts → |
“MPN Capital Markets is a full-service, energy management consulting firm that advises businesses, governments, non-governmental organizations, homeowners and not-for-profits.” Recorded description excerpt · October 12, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Energy efficiency audit companies: dataset insights
October 12, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
5,476 records in the displayed employee bands.
28 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 5,504 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 12, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Energy efficiency audit companies by location
27 lists · largest firstEvery Energy efficiency audit companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Energy efficiency audit companies based in the United States898
- Energy efficiency audit companies based in France511
- Energy efficiency audit companies based in Germany367
- Energy efficiency audit companies based in Spain361
- Energy efficiency audit companies based in the United Kingdom316
- Energy efficiency audit companies based in Italy276
- Energy efficiency audit companies based in Canada189
- Energy efficiency audit companies based in the Netherlands144
- Energy efficiency audit companies based in India138
- Energy efficiency audit companies based in Australia118
- Energy efficiency audit companies based in Brazil115
- Energy efficiency audit companies based in Belgium111
- Energy efficiency audit companies based in Poland73
- Energy efficiency audit companies based in Switzerland70
- Energy efficiency audit companies based in Portugal62
- Energy efficiency audit companies based in Türkiye61
- Energy efficiency audit companies based in Mexico58
- Energy efficiency audit companies based in Ireland48
- Energy efficiency audit companies based in South Africa39
- Energy efficiency audit companies based in Chile37
- Energy efficiency audit companies based in Sweden32
- Energy efficiency audit companies based in Czechia31
Cities
- Energy efficiency audit companies based in Paris, France66
- Energy efficiency audit companies based in London, United Kingdom42
- Energy efficiency audit companies based in Toronto, Canada30
- Energy efficiency audit companies based in New York, United States29
- Energy efficiency audit companies based in Milan, Italy28
Questions about this company list
What does Exact match mean for energy efficiency audit companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many energy efficiency audit companies did RevenueBase find worldwide?
The saved snapshot records 5,504 matching company records, 37,631 tracked contacts and 11,258 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 12, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 energy efficiency audit companies worldwide. Snapshot: October 12, 2026. https://revenuebase.ai/companies/browse/energy-efficiency-audit-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗