Company lists · Data refreshed September 2026

Top 25 Renewable energy construction companies based in Belgium

Name: Renewable energy construction companies based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 150 companies tracked

RevenueBase identified 150 renewable energy construction companies headquartered in Belgium as of September 2026 and tracks 1,468 professional contacts across them, including 565 with verified work emails. Antwerpen is the largest hub.

This list covers renewable energy construction companies 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 17, 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 17, 2026 86% judged on-target in blind review

150Companies

1,468Contacts tracked

565Verified emails

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The 25 largest renewable energy construction companies based in Belgium

Ranked by team size

Top 25 of 150 renewable energy construction companies based in Belgium, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy construction companies: 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 17, 2026	201-500	250 contacts →
	Partial evidence “Eneco Belgium is a sustainable energy provider.” Source: RevenueBase Database · checked Sep 17, 2026
2	Energyvision	Partial evidence	Ghent, BelgiumHQ checked Sep 17, 2026	201-500	186 contacts →
	Partial evidence “At EnergyVision, we are committed to creating a better world by making green energy accessible to everyone.” Source: RevenueBase Database · checked Sep 17, 2026
3	Renner Energies	Strong evidence	Leuven, BelgiumHQ checked Sep 17, 2026	51-200	90 contacts →
	Strong 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 17, 2026
4	Aspiravi	Partial evidence	Kortrijk, BelgiumHQ checked Sep 17, 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 17, 2026
5	Elicio	Strong evidence	Oostende, BelgiumHQ checked Sep 17, 2026	51-200	66 contacts →
	Strong evidence “Elicio NV is a renewable energy producer operating internationally.” Source: RevenueBase Database · checked Sep 17, 2026
6	Izen Energy Systems NV	Partial evidence	Lille, BelgiumHQ checked Sep 17, 2026	51-200	52 contacts →
	Partial evidence “Achieving the energy transition!” Source: RevenueBase Database · checked Sep 17, 2026
7	Insaver	Indirect evidence	Houthalen, BelgiumHQ checked Sep 17, 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 17, 2026
8	Eneco Wind Belgium S.A	Indirect evidence	Wavre, BelgiumHQ checked Sep 17, 2026	1-10	30 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
9	ENSYS	Strong evidence	Kapellen, BelgiumHQ checked Sep 17, 2026	11-50	22 contacts →
	Strong 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 17, 2026
10	Polarsun	Indirect evidence	Barchon, BelgiumHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “Chez Polarsun, nous concevons, installons et assurons le suivi de solutions énergétiques durables pour les particuliers, les entreprises et les collectivités.” Source: RevenueBase Database · checked Sep 17, 2026
11	Bright Energy	Strong evidence	Gent, BelgiumHQ checked Sep 17, 2026	11-50	19 contacts →
	Strong evidence “Bright Energy offers renewable energy for construction sites.” Source: RevenueBase Database · checked Sep 17, 2026
12	Eoluz NV	Partial evidence	Kapellen, BelgiumHQ checked Sep 17, 2026	11-50	16 contacts →
	Partial evidence “Eoluz bouwt vandaag aan de energie van morgen.” Source: RevenueBase Database · checked Sep 17, 2026
13	Suntronics	Partial evidence	Sint-eloois-winkel, BelgiumHQ checked Sep 17, 2026	11-50	15 contacts →
	Partial evidence “SunTronics is gespecialiseerd in engineering, verkoop, installatie en service van installaties die energie produceren uit hernieuwbare energiebronnen.” Source: RevenueBase Database · checked Sep 17, 2026
14	Sogreen	Indirect evidence	Fexhe-le-haut-clocher, BelgiumHQ checked Sep 17, 2026	11-50	15 contacts →
	Indirect evidence “SoGreen est une société active dans le secteur des énergies renouvelables et techniques spéciales.” Source: RevenueBase Database · checked Sep 17, 2026
15	Greenpulse	Partial evidence	Ghent, BelgiumHQ checked Sep 17, 2026	1-10	13 contacts →
	Partial evidence “GreenPulse offers Renewables-as-a-Service and enables corporations to achieve sustainable growth and contribute against climate change.” Source: RevenueBase Database · checked Sep 17, 2026
16	Mars Solar	Partial evidence	BelgiumHQ checked Sep 17, 2026	51-200	12 contacts →
	Partial evidence “Het MARS SOLAR team heeft ruim 5 jaar ervaring op het gebied van advisering, leveren en monteren van hernieuwbare energie.” Source: RevenueBase Database · checked Sep 17, 2026
17	H&s Powersolutions	Strong evidence	Hasselt, BelgiumHQ checked Sep 17, 2026	11-50	12 contacts →
	Strong evidence “H&S Powersolutions is a company that specializes in renewable energy.” Source: RevenueBase Database · checked Sep 17, 2026
18	Gutami Solar	Partial evidence	Beringen, BelgiumHQ checked Sep 17, 2026	51-200	11 contacts →
	Partial evidence “We zorgen dat de zon u energie geeft!” Source: RevenueBase Database · checked Sep 17, 2026
19	Proenergy	Partial evidence	Ruiselede, BelgiumHQ checked Sep 17, 2026	11-50	11 contacts →
	Partial evidence “Proenergy is een bedrijf dat in 2010 werd opgericht door Steven Roels, gedreven door een grote passie voor groene energie-installaties zoals zonnepanelen, warmtepompen…” Source: RevenueBase Database · checked Sep 17, 2026
20	Guilliams Group	Partial evidence	Vertrijk, BelgiumHQ checked Sep 17, 2026	11-50	10 contacts →
	Partial evidence “Guilliams Group is de overkoepelende organisatie van drie ondernemingen: Guilliams Green Power, Guilliams Construction Solutions en Guilliams Logistics Solutions.” Source: RevenueBase Database · checked Sep 17, 2026
21	Neargrid Solutions	Partial evidence	Zele, BelgiumHQ checked Sep 17, 2026	11-50	10 contacts →
	Partial evidence “We replace diesel generators on construction sites with clean, battery-powered systems, reliable, silent, and grid-friendly.” Source: RevenueBase Database · checked Sep 17, 2026
22	Jeroen Fiers BV	Partial evidence	Ghent, BelgiumHQ checked Sep 17, 2026	11-50	10 contacts →
	Partial evidence “Jeroen Fiers BV was founded in 2011 in Ghent and started out as a construction company.” Source: RevenueBase Database · checked Sep 17, 2026
23	Advenso	Partial evidence	Zedelgem, BelgiumHQ checked Sep 17, 2026	51-200	10 contacts →
	Partial evidence “Advenso is gespecialiseerd in hernieuwbare energie.” Source: RevenueBase Database · checked Sep 17, 2026
24	CLEYS	Partial evidence	Waasmunster, BelgiumHQ checked Sep 17, 2026	11-50	9 contacts →
	Partial evidence “Cleys bv is jouw specialist in energetische renovaties.” Source: RevenueBase Database · checked Sep 17, 2026
25	Enersynt	Partial evidence	Leuven, BelgiumHQ checked Sep 17, 2026	1-10	8 contacts →
	Partial evidence “Enersynt is an agile engineering consulting firm dedicated to designing and realising your high voltage installations.” Source: RevenueBase Database · checked Sep 17, 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: renewable energy construction companies. 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 renewable energy construction companies.
Partial evidence: Its own public description names part of renewable energy construction companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy construction companies. 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 150 renewable energy construction companies based in Belgium

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Renewable energy construction companies based in Belgium at a glance

As of Sep 17, 2026

38.5%Verified-email coverage

9.8Average contacts per company

1-10Median size (employees)

2.0%Largest-city concentration · Antwerpen

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 150 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 renewable energy construction companies, 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 “renewable energy construction companies”. 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 renewable energy construction companies), 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 renewable energy construction companies, 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, 565 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 17, 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 renewable energy construction companies, 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 renewable energy construction companies are there based in Belgium?

RevenueBase identified 150 renewable energy construction companies 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 renewable energy construction companies?

Antwerpen leads with 3 headquartered companies, followed by Brussels (3) and Bruxelles (3).

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 565 verified decision-maker contacts tracked across these 150 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 17, 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.