Company lists · Data refreshed September 2026

Top 25 Structural steel contractors based in Belgium

Name: Structural steel contractors based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 224 companies tracked

RevenueBase identified 224 structural steel contractors headquartered in Belgium as of September 2026 and tracks 2,571 professional contacts across them, including 722 with verified work emails. Antwerpen is the largest hub.

This list covers structural steel contractors 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 18, 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 18, 2026 86% judged on-target in blind review

224Companies

2,571Contacts tracked

722Verified emails

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The 25 largest structural steel contractors based in Belgium

Ranked by team size

Top 25 of 224 structural steel contractors based in Belgium, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to structural steel contractors: 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	Joris IDE	Indirect evidence	Zwevezele, BelgiumHQ checked Sep 18, 2026	1,001-5,000	483 contacts →
	Indirect evidence “With passion for our trade.” Source: RevenueBase Database · checked Sep 18, 2026
2	Victor Buyck Steel Construction	Partial evidence	Eeklo, BelgiumHQ checked Sep 18, 2026	201-500	159 contacts →
	Partial evidence “Victor Buyck Steel Construction is one of the largest trendsetting steelwork companies in Europe.” Source: RevenueBase Database · checked Sep 18, 2026
3	Frisomat Group	Partial evidence	Wijnegem, BelgiumHQ checked Sep 18, 2026	201-500	130 contacts →
	Partial evidence “Frisomat designs and produces industrial steel buildings and we do so in almost every continent.” Source: RevenueBase Database · checked Sep 18, 2026
4	Actum Services	Indirect evidence	Poperinge, BelgiumHQ checked Sep 18, 2026	51-200	98 contacts →
	Indirect evidence “Specialist in constructie, onderhoud & opbouw van technische installaties & staalconstructies.” Source: RevenueBase Database · checked Sep 18, 2026
5	Vlassenroot Group	Strong evidence	Be - 1702 Groot-bijgaarden, BelgiumHQ checked Sep 18, 2026	201-500	91 contacts →
	Strong evidence “We are a family‑owned leader in steel structure manufacturing, operating modern production sites across Europe.” Source: RevenueBase Database · checked Sep 18, 2026
6	Mahieu Construct	Indirect evidence	Komen, BelgiumHQ checked Sep 18, 2026	51-200	67 contacts →
	Indirect evidence “Reeds meer dan 30 jaar voorziet MAHIEU-CONSTRUCT bedrijven van een optimale, aangepaste bedrijfsruimte.” Source: RevenueBase Database · checked Sep 18, 2026
7	Vanloot	Indirect evidence	Vlamertinge, BelgiumHQ checked Sep 18, 2026	51-200	48 contacts →
	Indirect evidence “Als complete prefabbouwer (metaal, hout, beton) legt Vanloot zich toe op de constructie van industriële, agrarische en kmo-gebouwen, inclusief betonwerken.” Source: RevenueBase Database · checked Sep 18, 2026
8	Aelterman BV	Partial evidence	Gent, BelgiumHQ checked Sep 18, 2026	51-200	48 contacts →
	Partial evidence “As a strong player within the European steel construction industry, Aelterman amazes with its innovative and premium quality projects time and again.” Source: RevenueBase Database · checked Sep 18, 2026
9	VAN DE Walle Industrial Building Contractor	Indirect evidence	Aalter, BelgiumHQ checked Sep 18, 2026	11-50	35 contacts →
	Indirect evidence “Onze kernactiviteit bestaat uit het bouwen van allerlei industriële constructies.” Source: RevenueBase Database · checked Sep 18, 2026
10	CSM Steelstructures	Indirect evidence	Hamont-achel, BelgiumHQ checked Sep 18, 2026	51-200	33 contacts →
	Indirect evidence “CSM nv, met vestigingen in Achel en Hamont, is sinds de oprichting in 1964 uitgegroeid tot een toonaangevend bedrijf in de engineering, fabricage, conservering en montage van…” Source: RevenueBase Database · checked Sep 18, 2026
11	Vulsteke Bedrijfsgebouwen	Indirect evidence	Kortemark, BelgiumHQ checked Sep 18, 2026	11-50	31 contacts →
	Indirect evidence “Vulsteke Bedrijfsgebouwen staat voor doordachte bedrijfsgebouwen.” Source: RevenueBase Database · checked Sep 18, 2026
12	Staalbeton	Indirect evidence	Rijkevorsel, BelgiumHQ checked Sep 18, 2026	51-200	30 contacts →
	Indirect evidence “Staalbeton ‘een’ hoogwaardige wapeningscentrale en metaalschrijnwerkerij?” Source: RevenueBase Database · checked Sep 18, 2026
13	Group Delrue	Indirect evidence	Herseaux, BelgiumHQ checked Sep 18, 2026	11-50	28 contacts →
	Indirect evidence “Group Delrue BETONSTAAL - METAALCONSTRUCTIES - BOUWACCESOIRES ACIER BETON ARME - CONSTRCUTION METALLIQUE - ACCESSOIRES BATIMENT *Metaalhandel Delrue NV - Betonijzerbuigcentrale…” Source: RevenueBase Database · checked Sep 18, 2026
14	BCS Swinnen	Indirect evidence	Balen, BelgiumHQ checked Sep 18, 2026	51-200	26 contacts →
	Indirect evidence “BCS Swinnen is een gespecialiseerd aannemersbedrijf dat al sinds 1985 vakkundig allerhande bouwwerken uitvoert in de industriële, KMO, nucleaire en petrochemische sector.” Source: RevenueBase Database · checked Sep 18, 2026
15	Ortmans	Indirect evidence	Thimister-clermont, BelgiumHQ checked Sep 18, 2026	11-50	26 contacts →
	Indirect evidence “Actifs dans la fabrication métallique depuis plus de deux siècles, nous nous sommes spécialisés dans les constructions soudées inox, intégrant nouveaux alliages et métaux nobles.” Source: RevenueBase Database · checked Sep 18, 2026
16	Almex Metaal	Indirect evidence	Hoogstraten, BelgiumHQ checked Sep 18, 2026	11-50	26 contacts →
	Indirect evidence “almex metaal werd in 2006 opgericht en is een ambitieus bedrijf in volle groei.” Source: RevenueBase Database · checked Sep 18, 2026
17	Emts Steeldesign	Indirect evidence	Middelkerke, BelgiumHQ checked Sep 18, 2026	1-10	25 contacts →
	Indirect evidence “Stalen ramen & deuren, meubilair, trappen en opritpoorten - Steeds volledig op maat - High-end afwerking - Vakwerk met oog voor detail - Alles in eigen atelier: van ontwerp tot…” Source: RevenueBase Database · checked Sep 18, 2026
18	MBB	Indirect evidence	Ocquier, BelgiumHQ checked Sep 18, 2026	11-50	23 contacts →
	Indirect evidence “Le 31 juillet 2017, au cœur de l’été, la société MATIERE SAS a fait l’acquisition des Ateliers Roger Poncin & Cie s.a.” Source: RevenueBase Database · checked Sep 18, 2026
19	C-Metal	Partial evidence	Temse, BelgiumHQ checked Sep 18, 2026	51-200	20 contacts →
	Partial evidence “C-metal is the internal production facility within the Cordeel Group with expertise in the manufacture of steel constructions in hot-welded steel.” Source: RevenueBase Database · checked Sep 18, 2026
20	JECO	Indirect evidence	Bree, BelgiumHQ checked Sep 18, 2026	11-50	18 contacts →
	Indirect evidence “Industriële gebouwen, industriële renovaties, staalconstracties, dak- en gevelbekleding.” Source: RevenueBase Database · checked Sep 18, 2026
21	Vaneenoo NV	Indirect evidence	Wingene, BelgiumHQ checked Sep 18, 2026	11-50	17 contacts →
	Indirect evidence “Vaneenoo is een gevestigde waarde in de industriebouw.” Source: RevenueBase Database · checked Sep 18, 2026
22	Real Corporation	Indirect evidence	St-gillis-waas, BelgiumHQ checked Sep 18, 2026	51-200	16 contacts →
	Indirect evidence “Real Corporation - staalconstructies Als aannemer van metaalconstructies en staalbouw, met een centrale ligging tussen de havengebieden van Antwerpen en Gent, zijn onze…” Source: RevenueBase Database · checked Sep 18, 2026
23	Molenschot Industriebouw	Indirect evidence	Balen, BelgiumHQ checked Sep 18, 2026	11-50	15 contacts →
	Indirect evidence “Volg op deze pagina de laatste ontwikkelingen binnen Molenschot Industriebouw en de voortgang van onze projecten.” Source: RevenueBase Database · checked Sep 18, 2026
24	Technocon BV	Indirect evidence	Aalter, BelgiumHQ checked Sep 18, 2026	1-10	15 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 18, 2026
25	AMC NV	Partial evidence	Eksaarde, BelgiumHQ checked Sep 18, 2026	51-200	14 contacts →
	Partial evidence “The large and complex steel constructions in production companies, are engineered, produced and erected by AMC.” Source: RevenueBase Database · checked Sep 18, 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: structural steel contractors. 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 structural steel contractors.
Partial evidence: Its own public description names part of structural steel contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name structural steel contractors. 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 224 structural steel contractors based in Belgium

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Structural steel contractors based in Belgium at a glance

As of Sep 18, 2026

28.1%Verified-email coverage

11.5Average contacts per company

11-50Median size (employees)

2.2%Largest-city concentration · Antwerpen

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

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 224 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 structural steel contractors, 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 “structural steel contractors”. 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 structural steel contractors), 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 structural steel contractors, 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, 722 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 18, 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 structural steel contractors, 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 structural steel contractors are there based in Belgium?

RevenueBase identified 224 structural steel contractors 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?

Joris IDE, headquartered in Belgium, tops this list with the largest team on record.

Which city has the most structural steel contractors?

Antwerpen leads with 5 headquartered companies, followed by Roeselare (5) and Sint-Niklaas (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 722 verified decision-maker contacts tracked across these 224 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 18, 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.