Company lists · Data refreshed September 2026
Top 25 On demand energy companies worldwide
RevenueBase identified 1,362 company matches for on demand energy companies worldwide as of September 2026 and tracks 76,855 professional contacts across them, including 24,801 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for on demand energy 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 September 21, 2026. Country and city lists for on demand energy 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 on demand energy companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 9,238 contacts → | ||||
Exact match “Taking care of things.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 7,551 contacts → | ||||
Exact match “We design, deploy and optimise the flexible energy and temperature solutions that are essential to our customers’ operations.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 4,555 contacts → | ||||
Exact match “Centrica is an international energy services and solutions company, founded on a 200-year heritage of serving customers in homes and businesses.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 4,150 contacts → | ||||
Exact match “Ambit Energy provides electricity, natural gas and solar services in numerous markets across the United States, primarily marketed through a direct sales channel of more than…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 3,797 contacts → | ||||
Exact match “Generac is the total energy solutions company powering a smarter world.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 2,466 contacts → | ||||
Exact match “Vistra (NYSE: VST) is a leading Fortune 500 integrated retail electricity and power generation company, based in Irving, Texas, that provides essential resources to customers…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 2,111 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 · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 1,709 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 · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 1,645 contacts → | ||||
Exact match “Established in 1997, Just Energy has been a leading retail energy provider serving markets across the United States and Canada.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 1,388 contacts → | ||||
Exact match “IGS Energy has been a trusted energy advisor since 1989, growing into one of the nation’s top energy retailers.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 940 contacts → | ||||
Exact match “Wärtsilä leads the transition towards a 100% renewable energy future.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 917 contacts → | ||||
Exact match “Reliant has deep Texas roots.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 906 contacts → | ||||
Exact match “Sunnova Energy International Inc.(NYSE: NOVA) is an industry-leading energy services company focused on making clean energy more accessible, reliable, and affordable for…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 779 contacts → | ||||
Exact match “Podnikání innogy se soustředí na dodávky zemního plynu, elektřiny a tepla zákazníkům, kombinovanou výrobu tepla a elektřiny v teplárenských provozech a řešení pro čistou mobilitu.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 740 contacts → | ||||
Exact match “PowerSecure, a Southern Company subsidiary, is a leading provider of innovative energy solutions to electric utilities and their industrial, institutional, and commercial…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 705 contacts → | ||||
Exact match “At Dynegy, we deliver more than just power to residential, municipal, commercial, and industrial customers across several states.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 661 contacts → | ||||
Exact match “SSE Airtricity has been harnessing our greatest natural resource for the past 25 years, providing cleaner, renewable energy† for homes and businesses across the country.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 655 contacts → | ||||
Exact match “Enegan offre soluzioni personalizzate per le aziende abbinando alla fornitura di elettricità, gas e telecomunicazioni una vasta gamma di prodotti e servizi ad alto valore…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 608 contacts → | ||||
Exact match “Da dicembre 2025, abbiamo integrato EF Solare, il primo produttore fotovoltaico italiano.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 567 contacts → | ||||
Exact match “SoEnergy is a global provider of "energy as a service", ensuring customized solutions for a diverse array of organizations and industries worldwide, such as mining, oil & gas…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 555 contacts → | ||||
Exact match “Contamos con un portafolio de soluciones y servicios que impactan la cadena completa de la energía, como la construcción de proyectos de energía solar, de infraestructura de carga…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 512 contacts → | ||||
Exact match “Efficienza energetica e mobilità elettrica per le PMI.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 509 contacts → | ||||
Exact match “As leaders in our field, we’re trusted by over businesses to provide a full energy service.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 479 contacts → | ||||
Exact match “Mainspring is a power generator manufacturer redefining how local power is delivered to capacity constrained companies and communities.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 472 contacts → | ||||
Exact match “Uplight is a clean energy technology company that unlocks grid capacity by activating customers and their connected devices to generate, shift, and save energy.” Recorded in the RevenueBase company graph · Sep 21, 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 “on demand energy 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 1,362 on demand energy companies worldwide
See the full list, filter by size, metro and specialty, and access 24,801 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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On demand energy companies worldwide at a glance
As of Sep 21, 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 on demand energy companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “on demand energy 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 24,801 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 September 21, 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.
On demand energy companies by location
9 lists · largest firstEvery On demand energy companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- On demand energy companies based in the United States268
- On demand energy companies based in Germany89
- On demand energy companies based in Brazil80
- On demand energy companies based in Spain73
- On demand energy companies based in Italy66
- On demand energy companies based in the United Kingdom66
- On demand energy companies based in the Netherlands56
- On demand energy companies based in Australia39
- On demand energy companies based in Canada28
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 “on demand energy companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many on demand energy companies are there worldwide?
RevenueBase identified 1,362 company matches for on demand energy companies worldwide as of September 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 on demand energy companies?
The United States leads with 268 companies, followed by Germany (89) and Brazil (80). Every on demand energy companies list by country and city is linked on this page.
Which city has the most on demand energy companies?
London leads with 20 company records, followed by Houston (18) and Sao Paulo (15).
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 24,801 professional contacts with verified work emails tracked across these 1,362 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 September 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,362 on demand energy 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 on demand energy 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 1,362 matching company records for on demand energy companies worldwide, with 76,855 tracked contacts and 24,801 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: September 21, 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 on demand energy 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 |  British GASbritishgas.co.ukHQ: Windsor, United KingdomReported employees: 10001+ | Windsor, United Kingdom | 10001+ | Exact match | 9,238 contacts → |
“Taking care of things.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Aggrekoaggreko.com HQ: Dumbarton, United KingdomReported employees: 5,001-10,000 | Dumbarton, United Kingdom | 5,001-10,000 | Exact match | 7,551 contacts → |
“We design, deploy and optimise the flexible energy and temperature solutions that are essential to our customers’ operations.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Centricacentrica.comHQ: Windsor, United KingdomReported employees: 10001+ | Windsor, United Kingdom | 10001+ | Exact match | 4,555 contacts → |
“Centrica is an international energy services and solutions company, founded on a 200-year heritage of serving customers in homes and businesses.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Ambit Energyambitenergy.comHQ: Irving, TX, United StatesReported employees: Not recorded | Irving, TX, United States | Not recorded | Exact match | 4,150 contacts → |
“Ambit Energy provides electricity, natural gas and solar services in numerous markets across the United States, primarily marketed through a direct sales channel of more than…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Generacgenerac.comHQ: Waukesha, WI, United StatesReported employees: 5,001-10,000 | Waukesha, WI, United States | 5,001-10,000 | Exact match | 3,797 contacts → |
“Generac is the total energy solutions company powering a smarter world.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Vistra Corpvistracorp.comHQ: Irving, TX, United StatesReported employees: 5,001-10,000 | Irving, TX, United States | 5,001-10,000 | Exact match | 2,466 contacts → |
“Vistra (NYSE: VST) is a leading Fortune 500 integrated retail electricity and power generation company, based in Irving, Texas, that provides essential resources to customers…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Innio Groupinnio.comHQ: Munich, GermanyReported employees: 1,001-5,000 | Munich, Germany | 1,001-5,000 | Exact match | 2,111 contacts → |
“INNIO Group is a global distributed energy solutions provider that delivers reliable, flexible, transient, decentralized, modular and efficient power.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Rehlkorehlko.comHQ: Milwaukee, WI, United StatesReported employees: 5,001-10,000 | Milwaukee, WI, United States | 5,001-10,000 | Exact match | 1,709 contacts → |
“Rehlko is a global leader in energy resilience, delivering the solutions critical to sustain and improve life.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Just Energyjustenergy.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,645 contacts → |
“Established in 1997, Just Energy has been a leading retail energy provider serving markets across the United States and Canada.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  IGS Energyigs.comHQ: Dublin, OH, United StatesReported employees: 1,001-5,000 | Dublin, OH, United States | 1,001-5,000 | Exact match | 1,388 contacts → |
“IGS Energy has been a trusted energy advisor since 1989, growing into one of the nation’s top energy retailers.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Wärtsilä Energywartsila.comHQ: Helsinki, FinlandReported employees: 10001+ | Helsinki, Finland | 10001+ | Exact match | 940 contacts → |
“Wärtsilä leads the transition towards a 100% renewable energy future.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Reliant Energyreliant.comHQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 917 contacts → |
“Reliant has deep Texas roots.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Sunnova Energysunnova.comHQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 906 contacts → |
“Sunnova Energy International Inc.(NYSE: NOVA) is an industry-leading energy services company focused on making clean energy more accessible, reliable, and affordable for…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Innogy Česká Republikainnogy.czHQ: Prague, Czech RepublicReported employees: 10001+ | Prague, Czech Republic | 10001+ | Exact match | 779 contacts → |
“Podnikání innogy se soustředí na dodávky zemního plynu, elektřiny a tepla zákazníkům, kombinovanou výrobu tepla a elektřiny v teplárenských provozech a řešení pro čistou mobilitu.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Powersecure, INCpowersecure.comHQ: Durham, NC, United StatesReported employees: 501-1,000 | Durham, NC, United States | 501-1,000 | Exact match | 740 contacts → |
“PowerSecure, a Southern Company subsidiary, is a leading provider of innovative energy solutions to electric utilities and their industrial, institutional, and commercial…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Dynegydynegy.comHQ: Irving, TX, United StatesReported employees: 5,001-10,000 | Irving, TX, United States | 5,001-10,000 | Exact match | 705 contacts → |
“At Dynegy, we deliver more than just power to residential, municipal, commercial, and industrial customers across several states.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | SSE Airtricitysseairtricity.com HQ: IrelandReported employees: 501-1,000 | Ireland | 501-1,000 | Exact match | 661 contacts → |
“SSE Airtricity has been harnessing our greatest natural resource for the past 25 years, providing cleaner, renewable energy† for homes and businesses across the country.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Eneganenegan.itHQ: Vinci, ItalyReported employees: 201-500 | Vinci, Italy | 201-500 | Exact match | 655 contacts → |
“Enegan offre soluzioni personalizzate per le aziende abbinando alla fornitura di elettricità, gas e telecomunicazioni una vasta gamma di prodotti e servizi ad alto valore…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Sorgeniasorgenia.itHQ: Milan, ItalyReported employees: 201-500 | Milan, Italy | 201-500 | Exact match | 608 contacts → |
“Da dicembre 2025, abbiamo integrato EF Solare, il primo produttore fotovoltaico italiano.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Soenergy Internationalsoenergy.comHQ: Doral, FL, United StatesReported employees: 1,001-5,000 | Doral, FL, United States | 1,001-5,000 | Exact match | 567 contacts → |
“SoEnergy is a global provider of "energy as a service", ensuring customized solutions for a diverse array of organizations and industries worldwide, such as mining, oil & gas…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Erco Energíaerco.energyHQ: Medellín, ColombiaReported employees: 201-500 | Medellín, Colombia | 201-500 | Exact match | 555 contacts → |
“Contamos con un portafolio de soluciones y servicios que impactan la cadena completa de la energía, como la construcción de proyectos de energía solar, de infraestructura de carga…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Repower Italiarepower.comHQ: Milano, ItalyReported employees: 501-1,000 | Milano, Italy | 501-1,000 | Exact match | 512 contacts → |
“Efficienza energetica e mobilità elettrica per le PMI.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Northern GAS And Powerngpltd.co.ukHQ: Gateshead, United KingdomReported employees: 501-1,000 | Gateshead, United Kingdom | 501-1,000 | Exact match | 509 contacts → |
“As leaders in our field, we’re trusted by over businesses to provide a full energy service.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Mainspring Energymainspringenergy.comHQ: Menlo Park, CA, United StatesReported employees: 201-500 | Menlo Park, CA, United States | 201-500 | Exact match | 479 contacts → |
“Mainspring is a power generator manufacturer redefining how local power is delivered to capacity constrained companies and communities.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Uplightuplight.comHQ: Boulder, CO, United StatesReported employees: 501-1,000 | Boulder, CO, United States | 501-1,000 | Exact match | 472 contacts → |
“Uplight is a clean energy technology company that unlocks grid capacity by activating customers and their connected devices to generate, shift, and save energy.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,362 company matches
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On demand energy companies: dataset insights
September 21, 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
1,359 records in the displayed employee bands.
3 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 1,362 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: September 21, 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 ↗
On demand energy companies by location
9 lists · largest firstEvery On demand energy companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- On demand energy companies based in the United States268
- On demand energy companies based in Germany89
- On demand energy companies based in Brazil80
- On demand energy companies based in Spain73
- On demand energy companies based in Italy66
- On demand energy companies based in the United Kingdom66
- On demand energy companies based in the Netherlands56
- On demand energy companies based in Australia39
- On demand energy companies based in Canada28
Questions about this company list
What does Exact match mean for on demand energy 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 on demand energy companies did RevenueBase find worldwide?
The saved snapshot records 1,362 matching company records, 76,855 tracked contacts and 24,801 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: September 21, 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 on demand energy companies worldwide. Snapshot: September 21, 2026. https://revenuebase.ai/companies/browse/on-demand-energy-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 on demand energy companies worldwide
RevenueBase records 1,362 matching company records for on demand energy companies worldwide, with 76,855 tracked contacts and 24,801 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: September 21, 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 on demand energy 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 | British GASbritishgas.co.uk HQ: Windsor, United KingdomReported employees: 10001+ | Windsor, United Kingdom | 10001+ | Exact match | 9,238 contacts → |
“Taking care of things.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Aggrekoaggreko.com HQ: Dumbarton, United KingdomReported employees: 5,001-10,000 | Dumbarton, United Kingdom | 5,001-10,000 | Exact match | 7,551 contacts → |
“We design, deploy and optimise the flexible energy and temperature solutions that are essential to our customers’ operations.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Centricacentrica.com HQ: Windsor, United KingdomReported employees: 10001+ | Windsor, United Kingdom | 10001+ | Exact match | 4,555 contacts → |
“Centrica is an international energy services and solutions company, founded on a 200-year heritage of serving customers in homes and businesses.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Ambit Energyambitenergy.com HQ: Irving, TX, United StatesReported employees: Not recorded | Irving, TX, United States | Not recorded | Exact match | 4,150 contacts → |
“Ambit Energy provides electricity, natural gas and solar services in numerous markets across the United States, primarily marketed through a direct sales channel of more than…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Generacgenerac.com HQ: Waukesha, WI, United StatesReported employees: 5,001-10,000 | Waukesha, WI, United States | 5,001-10,000 | Exact match | 3,797 contacts → |
“Generac is the total energy solutions company powering a smarter world.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Vistra Corpvistracorp.com HQ: Irving, TX, United StatesReported employees: 5,001-10,000 | Irving, TX, United States | 5,001-10,000 | Exact match | 2,466 contacts → |
“Vistra (NYSE: VST) is a leading Fortune 500 integrated retail electricity and power generation company, based in Irving, Texas, that provides essential resources to customers…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Innio Groupinnio.com HQ: Munich, GermanyReported employees: 1,001-5,000 | Munich, Germany | 1,001-5,000 | Exact match | 2,111 contacts → |
“INNIO Group is a global distributed energy solutions provider that delivers reliable, flexible, transient, decentralized, modular and efficient power.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Rehlkorehlko.com HQ: Milwaukee, WI, United StatesReported employees: 5,001-10,000 | Milwaukee, WI, United States | 5,001-10,000 | Exact match | 1,709 contacts → |
“Rehlko is a global leader in energy resilience, delivering the solutions critical to sustain and improve life.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Just Energyjustenergy.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 1,645 contacts → |
“Established in 1997, Just Energy has been a leading retail energy provider serving markets across the United States and Canada.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | IGS Energyigs.com HQ: Dublin, OH, United StatesReported employees: 1,001-5,000 | Dublin, OH, United States | 1,001-5,000 | Exact match | 1,388 contacts → |
“IGS Energy has been a trusted energy advisor since 1989, growing into one of the nation’s top energy retailers.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Wärtsilä Energywartsila.com HQ: Helsinki, FinlandReported employees: 10001+ | Helsinki, Finland | 10001+ | Exact match | 940 contacts → |
“Wärtsilä leads the transition towards a 100% renewable energy future.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Reliant Energyreliant.com HQ: Houston, TX, United StatesReported employees: 1,001-5,000 | Houston, TX, United States | 1,001-5,000 | Exact match | 917 contacts → |
“Reliant has deep Texas roots.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Sunnova Energysunnova.com HQ: Houston, TX, United StatesReported employees: 501-1,000 | Houston, TX, United States | 501-1,000 | Exact match | 906 contacts → |
“Sunnova Energy International Inc.(NYSE: NOVA) is an industry-leading energy services company focused on making clean energy more accessible, reliable, and affordable for…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Innogy Česká Republikainnogy.cz HQ: Prague, Czech RepublicReported employees: 10001+ | Prague, Czech Republic | 10001+ | Exact match | 779 contacts → |
“Podnikání innogy se soustředí na dodávky zemního plynu, elektřiny a tepla zákazníkům, kombinovanou výrobu tepla a elektřiny v teplárenských provozech a řešení pro čistou mobilitu.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Powersecure, INCpowersecure.com HQ: Durham, NC, United StatesReported employees: 501-1,000 | Durham, NC, United States | 501-1,000 | Exact match | 740 contacts → |
“PowerSecure, a Southern Company subsidiary, is a leading provider of innovative energy solutions to electric utilities and their industrial, institutional, and commercial…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Dynegydynegy.com HQ: Irving, TX, United StatesReported employees: 5,001-10,000 | Irving, TX, United States | 5,001-10,000 | Exact match | 705 contacts → |
“At Dynegy, we deliver more than just power to residential, municipal, commercial, and industrial customers across several states.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | SSE Airtricitysseairtricity.com HQ: IrelandReported employees: 501-1,000 | Ireland | 501-1,000 | Exact match | 661 contacts → |
“SSE Airtricity has been harnessing our greatest natural resource for the past 25 years, providing cleaner, renewable energy† for homes and businesses across the country.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Eneganenegan.it HQ: Vinci, ItalyReported employees: 201-500 | Vinci, Italy | 201-500 | Exact match | 655 contacts → |
“Enegan offre soluzioni personalizzate per le aziende abbinando alla fornitura di elettricità, gas e telecomunicazioni una vasta gamma di prodotti e servizi ad alto valore…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Sorgeniasorgenia.it HQ: Milan, ItalyReported employees: 201-500 | Milan, Italy | 201-500 | Exact match | 608 contacts → |
“Da dicembre 2025, abbiamo integrato EF Solare, il primo produttore fotovoltaico italiano.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Soenergy Internationalsoenergy.com HQ: Doral, FL, United StatesReported employees: 1,001-5,000 | Doral, FL, United States | 1,001-5,000 | Exact match | 567 contacts → |
“SoEnergy is a global provider of "energy as a service", ensuring customized solutions for a diverse array of organizations and industries worldwide, such as mining, oil & gas…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Erco Energíaerco.energy HQ: Medellín, ColombiaReported employees: 201-500 | Medellín, Colombia | 201-500 | Exact match | 555 contacts → |
“Contamos con un portafolio de soluciones y servicios que impactan la cadena completa de la energía, como la construcción de proyectos de energía solar, de infraestructura de carga…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Repower Italiarepower.com HQ: Milano, ItalyReported employees: 501-1,000 | Milano, Italy | 501-1,000 | Exact match | 512 contacts → |
“Efficienza energetica e mobilità elettrica per le PMI.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Northern GAS And Powerngpltd.co.uk HQ: Gateshead, United KingdomReported employees: 501-1,000 | Gateshead, United Kingdom | 501-1,000 | Exact match | 509 contacts → |
“As leaders in our field, we’re trusted by over businesses to provide a full energy service.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Mainspring Energymainspringenergy.com HQ: Menlo Park, CA, United StatesReported employees: 201-500 | Menlo Park, CA, United States | 201-500 | Exact match | 479 contacts → |
“Mainspring is a power generator manufacturer redefining how local power is delivered to capacity constrained companies and communities.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Uplightuplight.com HQ: Boulder, CO, United StatesReported employees: 501-1,000 | Boulder, CO, United States | 501-1,000 | Exact match | 472 contacts → |
“Uplight is a clean energy technology company that unlocks grid capacity by activating customers and their connected devices to generate, shift, and save energy.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,362 company matches
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On demand energy companies: dataset insights
September 21, 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
1,359 records in the displayed employee bands.
3 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 1,362 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: September 21, 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 ↗
On demand energy companies by location
9 lists · largest firstEvery On demand energy companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- On demand energy companies based in the United States268
- On demand energy companies based in Germany89
- On demand energy companies based in Brazil80
- On demand energy companies based in Spain73
- On demand energy companies based in Italy66
- On demand energy companies based in the United Kingdom66
- On demand energy companies based in the Netherlands56
- On demand energy companies based in Australia39
- On demand energy companies based in Canada28
Questions about this company list
What does Exact match mean for on demand energy 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 on demand energy companies did RevenueBase find worldwide?
The saved snapshot records 1,362 matching company records, 76,855 tracked contacts and 24,801 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: September 21, 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 on demand energy companies worldwide. Snapshot: September 21, 2026. https://revenuebase.ai/companies/browse/on-demand-energy-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗