Company lists · Data refreshed September 2026

Top 25 Energy startups based in Belgium

Name: Energy startups based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 15, 2026 213 companies tracked

RevenueBase identified 213 energy startups headquartered in Belgium as of September 2026 and tracks 2,272 professional contacts across them, including 915 with verified work emails. Antwerpen is the largest hub.

This list covers energy startups headquartered in Belgium, 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 15, 2026.

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 15, 2026 86% judged on-target in blind review

213Companies

2,272Contacts tracked

915Verified emails

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The 25 largest energy startups based in Belgium

Ranked by team size

Top 25 of 213 energy startups based in Belgium, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to energy startups: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Eneco Belgium	Partial evidence	Mechelen, BelgiumHQ checked Sep 15, 2026	201-500	250 contacts →
	Partial evidence “Eneco Belgium is a sustainable energy provider.” Source: RevenueBase Database · checked Sep 15, 2026
2	Aukera Energy	Indirect evidence	Brussels, BelgiumHQ checked Sep 15, 2026	51-200	120 contacts →
	Indirect evidence “Aukera develops and delivers large-scale storage, solar and wind projects across Europe.” Source: RevenueBase Database · checked Sep 15, 2026
3	STORM	Partial evidence	Antwerpen, BelgiumHQ checked Sep 15, 2026	51-200	113 contacts →
	Partial evidence “Storm is a Belgian renewable energy producer.” Source: RevenueBase Database · checked Sep 15, 2026
4	Renner Energies	Partial evidence	Leuven, BelgiumHQ checked Sep 15, 2026	51-200	90 contacts →
	Partial evidence “At Renner Energies (formerly Windvision), our mission is to expand the power of renewable energy for present and future generations.” Source: RevenueBase Database · checked Sep 15, 2026
5	Aspiravi	Partial evidence	Kortrijk, BelgiumHQ checked Sep 15, 2026	51-200	80 contacts →
	Partial evidence “Since 2002, Aspiravi has been pioneering the energy transition Backed by 88 Belgian cities and municipalities, together with VEH, we combine strong local roots with the scale and…” Source: RevenueBase Database · checked Sep 15, 2026
6	YUSO	Partial evidence	Waregem, BelgiumHQ checked Sep 15, 2026	11-50	55 contacts →
	Partial evidence “Yuso is an energy supplier with a strong affinity for Renewable Energy Sources (RES).” Source: RevenueBase Database · checked Sep 15, 2026
7	Energyking	Partial evidence	Herent, BelgiumHQ checked Sep 15, 2026	51-200	53 contacts →
	Partial evidence “EnergyKing werd in 2013 opgericht door twee ingenieurs: Lucas & Wiet.” Source: RevenueBase Database · checked Sep 15, 2026
8	Linea Trovata Group	Indirect evidence	Lokeren, BelgiumHQ checked Sep 15, 2026	51-200	48 contacts →
	Indirect evidence “Zonnepanelen, batterijen, laadinfrastructuur slimme sturingen en warmte- en koeloplossingen?” Source: RevenueBase Database · checked Sep 15, 2026
9	Insaver	Indirect evidence	Houthalen, BelgiumHQ checked Sep 15, 2026	51-200	45 contacts →
	Indirect evidence “At Insaver, we guide you every step of the way toward a low-carbon future.” Source: RevenueBase Database · checked Sep 15, 2026
10	Bnewable	Partial evidence	Mechelen, BelgiumHQ checked Sep 15, 2026	11-50	41 contacts →
	Partial evidence “We manage, trade, and optimize energy for industrial companies, so their electricity bills become more predictable and affordable from day one.” Source: RevenueBase Database · checked Sep 15, 2026
11	Earth Belgium	Indirect evidence	Harelbeke, BelgiumHQ checked Sep 15, 2026	51-200	37 contacts →
	Indirect evidence “Earth is a Flemish company specialized in engineering and installing sustainable solar panels, home batteries, electric charging stations and LED's.” Source: RevenueBase Database · checked Sep 15, 2026
12	Energreen	Partial evidence	BelgiumHQ checked Sep 15, 2026	501-1,000	37 contacts →
	Partial evidence “We believe in the impact and power of energy within the green and sustainable environment, lived and realised by people and community.” Source: RevenueBase Database · checked Sep 15, 2026
13	Enerdeal By EDP	Partial evidence	Zaventem, BelgiumHQ checked Sep 15, 2026	11-50	33 contacts →
	Partial evidence “Enerdeal by EDP supports industrial and public players in their energy transition, turning solar energy into a strategic lever for performance, sustainability and independence.” Source: RevenueBase Database · checked Sep 15, 2026
14	Lifepowr	Partial evidence	Antwerp, BelgiumHQ checked Sep 15, 2026	11-50	32 contacts →
	Partial evidence “LIFEPOWR is at the forefront of transforming the energy landscape by orchestrating energy flows to balance the grid while unlocking the flexibility of thousands of decentralized…” Source: RevenueBase Database · checked Sep 15, 2026
15	Eneco Wind Belgium S.A	Indirect evidence	Wavre, BelgiumHQ checked Sep 15, 2026	1-10	30 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026
16	octave.energy	Partial evidence	Mechelen, BelgiumHQ checked Sep 15, 2026	11-50	27 contacts →
	Partial evidence “Power Your Business \| Cutting Edge Energy Management and Storage Systems” Source: RevenueBase Database · checked Sep 15, 2026
17	Sparki	Partial evidence	Harelbeke, BelgiumHQ checked Sep 15, 2026	51-200	27 contacts →
	Partial evidence “Sparki is een nieuwe Belgische energieleverancier die bouwt aan het energiemodel dat we vandaag wél zouden uitvinden: eenvoudig, decentraal, onafhankelijk en scherp geprijsd.” Source: RevenueBase Database · checked Sep 15, 2026
18	cozie.be	Partial evidence	België, BelgiumHQ checked Sep 15, 2026	51-200	23 contacts →
	Partial evidence “Cozie \| Durable Comfort Cozie is a vibrant company that works with ENGIE to combine the energy and dynamism of a start-up with the technical competence & long-term vision of an…” Source: RevenueBase Database · checked Sep 15, 2026
19	Aatechnics NV	Indirect evidence	Gent, BelgiumHQ checked Sep 15, 2026	11-50	22 contacts →
	Indirect evidence “Bij AAtechnics begrijpen we dat overstappen naar een CO2- neutraal bedrijfsmodel meer is dan alleen een milieuvriendelijke keuze - het is een strategische zet voor de toekomst.” Source: RevenueBase Database · checked Sep 15, 2026
20	ENSYS	Partial evidence	Kapellen, BelgiumHQ checked Sep 15, 2026	11-50	22 contacts →
	Partial evidence “As specialists in the field of renewable energy and energy efficiency, we offer unique proposals to both individuals and businesses.” Source: RevenueBase Database · checked Sep 15, 2026
21	Iftech NV	Partial evidence	Koersel, BelgiumHQ checked Sep 15, 2026	11-50	21 contacts →
	Partial evidence “IFTech speelt een voortrekkersrol in seizoensmatige energieopslag.” Source: RevenueBase Database · checked Sep 15, 2026
22	Energis	Partial evidence	Louvain-la-neuve, BelgiumHQ checked Sep 15, 2026	11-50	21 contacts →
	Partial evidence “Energis is a European greentech software scale-up headquartered in Belgium.” Source: RevenueBase Database · checked Sep 15, 2026
23	EGS Group	Indirect evidence	Maasmechelen, BelgiumHQ checked Sep 15, 2026	11-50	20 contacts →
	Indirect evidence “has been active in realizing sustainable projects in Belgium and our neighboring countries since 2012.” Source: RevenueBase Database · checked Sep 15, 2026
24	Go-Solar By D'ieteren	Indirect evidence	Waasmunster, BelgiumHQ checked Sep 15, 2026	51-200	19 contacts →
	Indirect evidence “Bij Go-Solar by D'Ieteren gaan wij verder dan alleen de installatie van zonnepanelen.” Source: RevenueBase Database · checked Sep 15, 2026
25	Bright Energy	Partial evidence	Gent, BelgiumHQ checked Sep 15, 2026	11-50	19 contacts →
	Partial evidence “Bright Energy offers renewable energy for construction sites.” Source: RevenueBase Database · checked Sep 15, 2026

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 startups. 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 startups.
Partial evidence: Its own public description names part of energy startups, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy startups. 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 213 energy startups based in Belgium

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Energy startups based in Belgium at a glance

As of Sep 15, 2026

40.3%Verified-email coverage

10.7Average contacts per company

1-10Median size (employees)

2.8%Largest-city concentration · Antwerpen

Sep 15, 2026Page data refreshed

Companies by employee count

1-10

129

11-50

51-200

201-500

501-1,000

Email recency for this list is measured worldwide rather than for Belgium, so it is reported there. Company counts and contact totals on this page are exact for Belgium, over 213 companies.

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 startups, 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.
What qualifies: Companies headquartered in Belgium whose own description of what they do matches “energy startups”. 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 startups), 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 startups, and records with no verified work email. Companies headquartered outside Belgium are excluded even when they keep an office there.
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, 915 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 15, 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.

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 startups, 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 startups are there based in Belgium?

RevenueBase identified 213 energy startups headquartered in Belgium 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?

Eneco Belgium, headquartered in Mechelen, tops this list with the largest team on record.

Which city has the most energy startups?

Antwerpen leads with 6 headquartered companies, followed by Gent (6) and Brussels (5).

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 915 verified decision-maker contacts tracked across these 213 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 15, 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.