Company lists · Data refreshed September 2026

Top 25 Energy aggregators worldwide

RevenueBase identified 3,329 energy aggregators worldwide as of September 2026 and tracks 59,088 professional contacts across them, including 21,309 with verified work emails and 0 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers energy aggregators 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 16, 2026. Country and city lists for energy aggregators 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review
3,329Companies
59,088Contacts tracked
21,309Verified emails
0Mobile numbers
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The 25 largest energy aggregators worldwide

Ranked by team size
Top 25 of 3,329 energy aggregators worldwide, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy aggregators: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceLondon, United KingdomHQ checked Sep 16, 20261,001-5,0002,627 contacts →

Partial evidence

“We help businesses manage energy needs, boost efficiency, control costs and achieve decarbonisation goals for a better energy future.”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceOxford, United KingdomHQ checked Sep 16, 2026501-1,0001,034 contacts →

Partial evidence

“Established in 2013, Aurora Energy Research is a leading global provider of power market forecasting and analytics for critical investment and financing decisions.”

Source: RevenueBase Database · checked Sep 16, 2026
3Partial evidenceHamburg, GermanyHQ checked Sep 16, 20261,001-5,000897 contacts →

Partial evidence

“1KOMMA5° wurde gegründet um Millionen Gebäude in Europa klimaneutral immer mit dem günstigsten Strom zu versorgen - ganz ohne fossile Energie.”

Source: RevenueBase Database · checked Sep 16, 2026
4Partial evidenceWashington, DC, United StatesHQ checked Sep 16, 2026501-1,000864 contacts →

Partial evidence

“Arcadia is the global utility data and energy solutions platform.”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceFolsom, CA, United StatesHQ checked Sep 16, 2026501-1,000847 contacts →

Indirect evidence

“The California Independent System Operator (ISO) manages the flow of electricity across the high-voltage, long-distance power lines that make up 80 percent of California's power…”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidenceManchester, United KingdomHQ checked Sep 16, 20261,001-5,000692 contacts →

Indirect evidence

“We are Calisen.”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceAarhus, DenmarkHQ checked Sep 16, 2026501-1,000646 contacts →

Partial evidence

“We are a tech-driven energy trading company that trades power and gas across +40 markets.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceGurugram, IndiaHQ checked Sep 16, 20261,001-5,000615 contacts →

Indirect evidence

“IntelliSmart Infrastructure Private Limited is India’s leading smart metering and digital solutions provider.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceLondon, United KingdomHQ checked Sep 16, 2026501-1,000595 contacts →

Partial evidence

“Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination.”

Source: RevenueBase Database · checked Sep 16, 2026
10Partial evidenceMilano, ItalyHQ checked Sep 16, 2026501-1,000512 contacts →

Partial evidence

“Efficienza energetica e mobilità elettrica per le PMI.”

Source: RevenueBase Database · checked Sep 16, 2026
11Partial evidenceGateshead, United KingdomHQ checked Sep 16, 2026501-1,000509 contacts →

Partial evidence

“As leaders in our field, we’re trusted by over businesses to provide a full energy service.”

Source: RevenueBase Database · checked Sep 16, 2026
12Partial evidenceEsbjerg N, DenmarkHQ checked Sep 16, 2026501-1,000504 contacts →

Partial evidence

“Hos N1 er vi dem, der kæmper for at tilføre elnettet ny energi.”

Source: RevenueBase Database · checked Sep 16, 2026
13Partial evidenceCarmel, IN, United StatesHQ checked Sep 16, 2026201-500478 contacts →

Partial evidence

“ACES is a nationwide energy management company that helps its clients buy, sell, and manage the complexity of the U.S.”

Source: RevenueBase Database · checked Sep 16, 2026
14Partial evidenceBoulder, CO, United StatesHQ checked Sep 16, 2026501-1,000472 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 16, 2026
15Partial evidenceSan Diego, CA, United StatesHQ checked Sep 16, 2026201-500467 contacts →

Partial 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 16, 2026
16Partial evidenceBoulder, CO, United StatesHQ checked Sep 16, 2026201-500392 contacts →

Partial evidence

“Yes Energy® is how traders, power companies, and asset managers and developers can finally make sense of the complex, rapidly changing power market.”

Source: RevenueBase Database · checked Sep 16, 2026
17Partial evidenceConcord, NC, United StatesHQ checked Sep 16, 2026201-500384 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 16, 2026
18Indirect evidencePuteaux, FranceHQ checked Sep 16, 2026201-500374 contacts →

Indirect evidence

“Voltalis is the European leader of automated Demand Response.”

Source: RevenueBase Database · checked Sep 16, 2026
19Partial evidenceShelton, CT, United StatesHQ checked Sep 16, 2026201-500366 contacts →

Partial evidence

“Budderfly is redefining how energy efficiency, resilience, and grid participation can work together across America’s commercial sector.”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceAachen, GermanyHQ checked Sep 16, 2026201-500362 contacts →

Indirect evidence

“VISIONEN VERWIRKLICHEN.”

Source: RevenueBase Database · checked Sep 16, 2026
21Partial evidenceSydney, AustraliaHQ checked Sep 16, 2026201-500348 contacts →

Partial evidence

“The Intellihub Group is a leading Australian and New Zealand energy business that delivers innovative metering, data and behind the meter technology platforms and solutions that…”

Source: RevenueBase Database · checked Sep 16, 2026
22Partial evidenceJaipur, IndiaHQ checked Sep 16, 2026201-500317 contacts →

Partial evidence

“Polaris (formerly known as Gram Power (India) Pvt Ltd) is an energy technology company founded out of Berkeley, California.”

Source: RevenueBase Database · checked Sep 16, 2026
23Partial evidenceLe Bourget Du Lac, FranceHQ checked Sep 16, 202651-200300 contacts →

Partial evidence

“At the centre of the smart grid revolution, Energy Pool manages and optimizes complex systems (energy consumption of industrial sites, decentralized production, renewable…”

Source: RevenueBase Database · checked Sep 16, 2026
24Indirect evidenceFørde, GermanyHQ checked Sep 16, 2026201-500289 contacts →

Indirect evidence

“Tibber is on a mission to change the way we buy and consume electricity.”

Source: RevenueBase Database · checked Sep 16, 2026
25Indirect evidenceAmsterdam, NetherlandsHQ checked Sep 16, 2026201-500286 contacts →

Indirect evidence

“Zou het niet logisch zijn als je 100% groene stroom rechtstreeks kunt kopen van een Nederlandse bron die je zelf mag kiezen?”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 3,329 energy aggregators worldwide

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Energy aggregators worldwide at a glance

As of Sep 16, 2026
36.1%Verified-email coverage
17.7Average contacts per company
1-10Median size (employees)
3.0%Largest-city concentration · London
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
1,764
11-50
1,100
51-200
345
201-500
59
501-1,000
21
1,001-5,000
16
5,001-10,000
3
10001+
4

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 aggregators, 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
23 countries, largest first: the United States, the United Kingdom, Germany, Spain, France, the Netherlands, Brazil, Italy, Australia, Belgium and 13 more. Country and city lists for energy aggregators are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “energy aggregators”. 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 aggregators), 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 aggregators, 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, 21,309 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 on September 16, 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 aggregators by location

23 lists · largest first

Every Energy aggregators list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 aggregators, 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 aggregators are there worldwide?

RevenueBase identified 3,329 energy aggregators 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?

Shell Energy, headquartered in London, tops this list with the largest team on record.

Which country has the most energy aggregators?

The United States leads with 600 companies, followed by the United Kingdom (422) and Germany (323). Every energy aggregators list by country and city is linked on this page.

Which city has the most energy aggregators?

London leads with 99 headquartered companies, followed by Madrid (76) and Paris (61).

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 21,309 verified decision-maker contacts tracked across these 3,329 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 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.