Company lists · Data refreshed September 2026

Top 19 Renewable energy monitoring companies based in Belgium

RevenueBase identified 36 renewable energy monitoring companies headquartered in Belgium as of September 2026 and tracks 617 professional contacts across them, including 297 with verified work emails. Brussels is the largest hub.

This list covers renewable energy monitoring 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
36Companies
617Contacts tracked
297Verified emails
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The 19 largest renewable energy monitoring companies based in Belgium

Ranked by team size
Top 19 of 36 renewable energy monitoring 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 monitoring 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
1Strong evidenceBrussels, BelgiumHQ checked Sep 17, 202651-200247 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 17, 2026
2Partial evidenceKortrijk, BelgiumHQ checked Sep 17, 202651-20080 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
3Indirect evidenceHouthalen, BelgiumHQ checked Sep 17, 202651-20045 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
4Indirect evidenceGeel, BelgiumHQ checked Sep 17, 202611-5042 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 17, 2026
5Strong evidenceBrussels, BelgiumHQ checked Sep 17, 202611-5020 contacts →

Strong evidence

“Zensor provides full, integrated and intelligent monitoring solutions for the industrial production, renewable energy and infrastructure sectors.”

Source: RevenueBase Database · checked Sep 17, 2026
6Partial evidenceKapellen, BelgiumHQ checked Sep 17, 202611-5016 contacts →

Partial evidence

“Eoluz bouwt vandaag aan de energie van morgen.”

Source: RevenueBase Database · checked Sep 17, 2026
7Partial evidenceOttignies, BelgiumHQ checked Sep 17, 202611-5015 contacts →

Partial evidence

“Memoco est une société de 25 personnes basée à LLN, spécialiste du Metering (comptage intelligent), du Monitoring (suivi à distance) et du Contrôle.”

Source: RevenueBase Database · checked Sep 17, 2026
8Partial evidenceLiège, BelgiumHQ checked Sep 17, 202611-5014 contacts →

Partial evidence

“Mitis is an innovative technology company dedicated to developing cutting-edge solutions for the energy transition, making power generation more efficient and environmentally…”

Source: RevenueBase Database · checked Sep 17, 2026
9Indirect evidenceKruibeke, BelgiumHQ checked Sep 17, 20261-109 contacts →

Indirect evidence

“Durable performance of your solar parks is key to an optimal return on investment.”

Source: RevenueBase Database · checked Sep 17, 2026
10Indirect evidenceNiel, BelgiumHQ checked Sep 17, 20261-108 contacts →

Indirect evidence

“Building robust and highly scalable end-to- end solutions for the management of infrastructure such as PV parks, data centers and buildings.”

Source: RevenueBase Database · checked Sep 17, 2026
11Strong evidenceLeuven, BelgiumHQ checked Sep 17, 20261-108 contacts →

Strong evidence

“We are in the middle of an energy transition and in order to achieve our climate goals it won't be enough to just install renewable energy.”

Source: RevenueBase Database · checked Sep 17, 2026
12Strong evidenceLiège, BelgiumHQ checked Sep 17, 20261-107 contacts →

Strong evidence

“Flexide Energy is driving the next generation of renewable energy and electrification projects, making them flexible and adaptable to customer needs while enhancing grid…”

Source: RevenueBase Database · checked Sep 17, 2026
13Partial evidenceLouvain-la-neuve, BelgiumHQ checked Sep 17, 202611-506 contacts →

Partial evidence

“Since 1982, Steel is an expert in energy metering & power quality solutions.”

Source: RevenueBase Database · checked Sep 17, 2026
14Partial evidenceWavre, BelgiumHQ checked Sep 17, 202611-506 contacts →

Partial evidence

“GreenWatch provides monitoring to photovoltaic installation owners in Belgium.”

Source: RevenueBase Database · checked Sep 17, 2026
15Indirect evidenceWortegem-petegem, BelgiumHQ checked Sep 17, 202611-505 contacts →

Indirect evidence

“Welcome to SunElektro!”

Source: RevenueBase Database · checked Sep 17, 2026
16Partial evidenceErembodegem, BelgiumHQ checked Sep 17, 202611-504 contacts →

Partial evidence

“nanoGrid® is an independent company which specializes in developing an energy management system for multi-site companies.”

Source: RevenueBase Database · checked Sep 17, 2026
17Indirect evidenceLouveigné, BelgiumHQ checked Sep 17, 20261-103 contacts →

Indirect evidence

“OFF-GRID SERVICES a pour but de vendre des systèmes de stockage électriques, des convertisseurs et autre électronique de puissance, liés à des générateurs à énergie renouvelables…”

Source: RevenueBase Database · checked Sep 17, 2026
18Partial evidenceLo-reninge, BelgiumHQ checked Sep 17, 20261-103 contacts →

Partial evidence

“Service and Monitoring of photovoltaic installations”

Source: RevenueBase Database · checked Sep 17, 2026
19Indirect evidenceEvergem, BelgiumHQ checked Sep 17, 20261-102 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026

Showing 19 of 36 renewable energy monitoring companies based in Belgium

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Renewable energy monitoring companies based in Belgium at a glance

As of Sep 17, 2026
48.1%Verified-email coverage
17.1Average contacts per company
1-10Median size (employees)
5.6%Largest-city concentration · Brussels
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
18
11-50
15
51-200
3

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 36 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 monitoring 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 monitoring 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 monitoring 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 monitoring 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, 297 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 monitoring 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 monitoring companies are there based in Belgium?

RevenueBase identified 36 renewable energy monitoring 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 renewable energy monitoring companies?

Brussels leads with 2 headquartered companies, followed by Dilsen-Stokkem (2) and Gent (2).

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 297 verified decision-maker contacts tracked across these 36 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.