Company lists · Data refreshed September 2026
Top 25 Energy retailer software worldwide
RevenueBase identified 2,039 energy retailer software worldwide as of September 2026 and tracks 68,920 professional contacts across them, including 24,829 with verified work emails and 6,795 with mobile numbers. Germany is the largest market and Madrid the largest hub.
This list covers energy retailer software worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 2, 2026. Country and city lists for energy retailer software follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest energy retailer software worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 9,287 contacts → | ||||
Indirect evidence “Taking care of things.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 2 | 4,589 contacts → | ||||
Partial evidence “Centrica is an international energy services and solutions company, founded on a 200-year heritage of serving customers in homes and businesses.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,773 contacts → | ||||
Strong evidence “At GE Digital, our focus is clear: delivering software that accelerates a new era of energy.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,640 contacts → | ||||
Strong evidence “Established in 1997, Just Energy has been a leading retail energy provider serving markets across the United States and Canada.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,201 contacts → | ||||
Strong evidence “Alinta Energy is one of Australia’s largest energy retailers, generators, investors and developers.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,013 contacts → | ||||
Partial evidence “Die E.ON Energie Deutschland GmbH ist ein bundesweit führendes Energieunternehmen und Dachgesellschaft des E.ON Vertriebs in Deutschland.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 7 | 985 contacts → | ||||
Strong evidence “As Western Australia’s leading energy generator and retailer, Synergy is an essential and trusted provider of electricity and gas.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 8 | 869 contacts → | ||||
Partial evidence “Arcadia is the global utility data and energy solutions platform.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 9 | 725 contacts → | ||||
Partial evidence “CS Energy is a proudly Queensland-owned and based energy company that provides power to some of our state’s biggest industries and employers.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 10 | 701 contacts → | ||||
Indirect evidence “We are Calisen.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 11 | 693 contacts → | ||||
Strong evidence “VertexOne is the leading provider of cloud-based SaaS software powering the next generation of customer experience for utilities, energy retailers, and energy transition providers.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 12 | 654 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 13 | 642 contacts → | ||||
Partial evidence “We are a tech-driven energy trading company that trades power and gas across +40 markets.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 14 | 607 contacts → | ||||
Indirect evidence “Da dicembre 2025, abbiamo integrato EF Solare, il primo produttore fotovoltaico italiano.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 15 | 601 contacts → | ||||
Partial evidence “Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 16 | 564 contacts → | ||||
Indirect evidence “Every megawatt matters.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 17 | 556 contacts → | ||||
Indirect evidence “Founded in 2011, Kimbal Private Limited (formerly Sinhal Udyog Private Limited) is an ISO 9001:2015 certified fastest emerging Indian startup building breakthrough technologies…” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 18 | 509 contacts → | ||||
Partial evidence “Efficienza energetica e mobilità elettrica per le PMI.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 19 | 484 contacts → | ||||
Partial evidence “Uplight is a clean energy technology company that unlocks grid capacity by activating customers and their connected devices to generate, shift, and save energy.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 20 | 467 contacts → | ||||
Strong evidence “Calpine Solutions is a retail energy provider with a robust suite of customized products, analytics, and data management solutions to turn a corporate electricity expense into a…” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 21 | 443 contacts → | ||||
Strong evidence “The PSI Group develops software products for optimizing the flow of energy and materials for utilities and industry.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 22 | 432 contacts → | ||||
Partial evidence “At Stem, we’re reimagining technology to drive the energy transition.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 23 | 396 contacts → | ||||
Strong evidence “Isotrol is the world market leader in energy software solutions and renewable energy plant control solutions used by large energy companies for 4 decades now.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 24 | 385 contacts → | ||||
Partial evidence “Trilliant® empowers utilities and partners to accelerate the energy transition through a proven, modular, multi-technology communications platform that delivers secure, scalable…” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 25 | 380 contacts → | ||||
Indirect evidence “We're ESG - and we put the power of data in your hands.” Source: RevenueBase Database · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: energy retailer software. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names energy retailer software.
- Partial evidence
- Its own public description names part of energy retailer software, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name energy retailer software. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 2,039 energy retailer software worldwide
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Energy retailer software worldwide at a glance
As of Sep 2, 2026Companies by employee count
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among energy retailer software, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- 21 countries, largest first: Germany, the United States, Spain, the United Kingdom, Italy, Australia, the Netherlands, Brazil, Türkiye, France and 11 more. Country and city lists for energy retailer software are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “energy retailer software”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names energy retailer software), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among energy retailer software, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 24,829 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph between September 2, 2026 and September 14, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Energy retailer software by location
25 lists · largest firstEvery Energy retailer software list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Energy retailer software based in Germany315
- Energy retailer software based in the United States294
- Energy retailer software based in Spain202
- Energy retailer software based in the United Kingdom200
- Energy retailer software based in Italy144
- Energy retailer software based in Australia138
- Energy retailer software based in the Netherlands111
- Energy retailer software based in Brazil106
- Energy retailer software based in Türkiye64
- Energy retailer software based in France61
- Energy retailer software based in India60
- Energy retailer software based in Switzerland48
- Energy retailer software based in Canada47
- Energy retailer software based in Belgium43
- Energy retailer software based in Poland38
- Energy retailer software based in South Africa34
- Energy retailer software based in Denmark30
- Energy retailer software based in Norway28
- Energy retailer software based in Sweden26
- Energy retailer software based in Austria25
- Energy retailer software based in Czechia25
Cities
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names energy retailer software, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many energy retailer software are there worldwide?
RevenueBase identified 2,039 energy retailer software worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
British GAS, headquartered in Staines, tops this list with the largest team on record.
Which country has the most energy retailer software?
Germany leads with 315 companies, followed by the United States (294) and Spain (202). Every energy retailer software list by country and city is linked on this page.
Which city has the most energy retailer software?
Madrid leads with 52 headquartered companies, followed by London (40) and Berlin (31).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 24,829 verified decision-maker contacts tracked across these 2,039 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled from the company graph between September 2, 2026 and September 14, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.