Company lists · Data refreshed September 2026

Top 25 Solar installation software companies based in Belgium

RevenueBase identified 340 solar installation software companies headquartered in Belgium as of September 2026 and tracks 2,241 professional contacts across them, including 862 with verified work emails and 57 with mobile numbers. Zaventem is the largest hub.

This list covers solar installation software 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 6, 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 6, 2026 86% judged on-target in blind review
340Companies
2,241Contacts tracked
862Verified emails
57Mobile numbers
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The 25 largest solar installation software companies based in Belgium

Ranked by team size
Top 25 of 340 solar installation software companies based in Belgium, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to solar installation software 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceBrussels, BelgiumHQ checked Sep 6, 202651-200247 contacts →

“3E is a leading technology and SaaS company providing digital solutions and expert services that maximise the performance of renewable energy assets.”

Source: company website · checked Sep 6, 2026
2Partial evidenceZonhoven, BelgiumHQ checked Sep 6, 202611-5058 contacts →

“Met een ervaring van meer dan installaties heeft het management van Opteco de nodige kennis in huis om uw project te realiseren.”

Source: company website · checked Sep 6, 2026
3Indirect evidenceHerent, BelgiumHQ checked Sep 6, 202651-20053 contacts →

“EnergyKing werd in 2013 opgericht door twee ingenieurs: Lucas & Wiet.”

Source: company website · checked Sep 6, 2026
4Partial evidenceLeuven, BelgiumHQ checked Sep 6, 202651-20052 contacts →

“Sitemark provides an AI and robotics-powered platform designed to connect solar site data, teams, and processes across the entire project lifecycle-from design and construction to…”

Source: company website · checked Sep 6, 2026
5Indirect evidenceLille, BelgiumHQ checked Sep 6, 202651-20052 contacts →

“Achieving the energy transition!”

Source: company website · checked Sep 6, 2026
6Indirect evidenceZwevegem, BelgiumHQ checked Sep 6, 202651-20051 contacts →

“Efficiency Thanks to our advice focused on a sustainable ecosystem, we offer our customers a tailor-made energy solution, resulting in optimal efficiency in both the near and…”

Source: company website · checked Sep 6, 2026
7Indirect evidenceHouthalen, BelgiumHQ checked Sep 6, 202651-20045 contacts →

“At Insaver, we guide you every step of the way toward a low-carbon future.”

Source: company website · checked Sep 6, 2026
8Partial evidenceBeernem, BelgiumHQ checked Sep 6, 202611-5042 contacts →

“Als professionele partner ontwerpt, bouwt en onderhoudt Extrapower zonne-energie installaties op maat van KMO’s en industrie.”

Source: company website · checked Sep 6, 2026
9Strong evidenceGeel, BelgiumHQ checked Sep 6, 202611-5042 contacts →

“Virto Solar: Redefining Software for Solar Engineering Founded in 2019, Virto Solar is a global leader in solar engineering software and PV design automation.”

Source: company website · checked Sep 6, 2026
10Partial evidenceHarelbeke, BelgiumHQ checked Sep 6, 202651-20037 contacts →

“Earth is a Flemish company specialized in engineering and installing sustainable solar panels, home batteries, electric charging stations and LED's.”

Source: company website · checked Sep 6, 2026
11Partial evidenceZaventem, BelgiumHQ checked Sep 6, 202611-5033 contacts →

“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: company website · checked Sep 6, 2026
12Indirect evidenceAlleur, BelgiumHQ checked Sep 6, 202651-20026 contacts →

“Designer, manufacturer and installer of ground-mounted structures and photovoltaic shading systems.”

Source: company website · checked Sep 6, 2026
13Indirect evidenceTessenderlo, BelgiumHQ checked Sep 6, 202611-5026 contacts →

“Futech is een zonnepaneleninstallateur op de Belgische residentiële en industriële markt.”

Source: company website · checked Sep 6, 2026
14Indirect evidenceVeurne, BelgiumHQ checked Sep 6, 202651-20024 contacts →

“Op maat van elke individuele klant werkt ESE de technisch optimale en meest economische oplossing uit voor hun specifieke energie problemen en dit steeds vanuit een ecologisch…”

Source: company website · checked Sep 6, 2026
15Indirect evidenceEvere, BelgiumHQ checked Sep 6, 202611-5023 contacts →

“Soltis est une entreprise créée en 2008 qui accompagne professionnels et particuliers dans la mise en place de solutions vertes et rentables avec un seul but: améliorer…”

Source: company website · checked Sep 6, 2026
16Indirect evidenceKapellen, BelgiumHQ checked Sep 6, 202611-5022 contacts →

“As specialists in the field of renewable energy and energy efficiency, we offer unique proposals to both individuals and businesses.”

Source: company website · checked Sep 6, 2026
17Partial evidenceKortrijk, BelgiumHQ checked Sep 6, 202651-20021 contacts →

“BALTI SOLAR is uw partner bij: het plaatsen van zonnepanelen, het installeren van batterijopslag het plaatsen van laadpunten Al deze systemen worden aangestuurd door een…”

Source: company website · checked Sep 6, 2026
18Indirect evidenceZedelgem, BelgiumHQ checked Sep 6, 202651-20021 contacts →

“Vraag gratis je offerte aan, Bespaar dankzij de zonnepanelen van BeliVert heel wat energiekosten.”

Source: company website · checked Sep 6, 2026
19Partial evidenceIeper, BelgiumHQ checked Sep 6, 202611-5020 contacts →

“Bij Avasco Solar zetten we al jaren de toon als dé Belgische specialist in montagesystemen voor platte daken.”

Source: company website · checked Sep 6, 2026
20Indirect evidenceBarchon, BelgiumHQ checked Sep 6, 202611-5020 contacts →

“Chez Polarsun, nous concevons, installons et assurons le suivi de solutions énergétiques durables pour les particuliers, les entreprises et les collectivités.”

Source: company website · checked Sep 6, 2026
21Strong evidenceWaasmunster, BelgiumHQ checked Sep 6, 202651-20019 contacts →

“Bij Go-Solar by D'Ieteren gaan wij verder dan alleen de installatie van zonnepanelen.”

Source: company website · checked Sep 6, 2026
22Strong evidenceLummen, BelgiumHQ checked Sep 6, 202611-5019 contacts →

“Verisol is an expert in the installation of cleantech products including photovoltaic solar installations, solar thermal systems, heat pumps, airconditioning systems, isolation en…”

Source: company website · checked Sep 6, 2026
23Indirect evidenceCerexhe-heuseux, BelgiumHQ checked Sep 6, 20261-1018 contacts →

“Ecostal is an importer and a wholesaler of green energy solutions and particularly photovoltaic products.”

Source: company website · checked Sep 6, 2026
24Indirect evidenceStrépy-bracquegnies, BelgiumHQ checked Sep 6, 202651-20017 contacts →

“Metubel est une société spécialisée dans la pose et le raccordement des différentes énergies pour les particuliers et les entreprises.”

Source: company website · checked Sep 6, 2026
25Indirect evidenceMarche-en-famenne, BelgiumHQ checked Sep 6, 202611-5017 contacts →

“Green Energy 4 Seasons created in 2008 is the Walloon leader in photovoltaics.”

Source: company website · checked Sep 6, 2026

Showing 25 of 340 solar installation software companies based in Belgium

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Solar installation software companies based in Belgium at a glance

As of Sep 6, 2026
38.5%Verified-email coverage
2.5%Mobile-number coverage
6.6Average contacts per company
1-10Median size (employees)
2.1%Largest-city concentration · Zaventem
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
196
11-50
111
51-200
27
201-500
3

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

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 solar installation software 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 “solar installation software 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 solar installation software 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 solar installation software 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, 862 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 6, 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 solar installation software 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 solar installation software companies are there based in Belgium?

RevenueBase identified 340 solar installation software 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?

3e, headquartered in Brussels, tops this list with the largest team on record.

Which city has the most solar installation software companies?

Zaventem leads with 7 headquartered companies, followed by Bruxelles (6) and Liege (6).

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 862 verified decision-maker contacts tracked across these 340 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 6, 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.