Company lists · Data refreshed September 2026

Top 25 Custom web development agencies based in Belgium

Name: Custom web development agencies based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 1,071 companies tracked

RevenueBase identified 1,071 custom web development agencies headquartered in Belgium as of September 2026 and tracks 3,629 professional contacts across them, including 960 with verified work emails and 162 with mobile numbers. Bruxelles is the largest hub.

This list covers custom web development agencies 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 1, 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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

1,071Companies

3,629Contacts tracked

960Verified emails

162Mobile numbers

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The 25 largest custom web development agencies based in Belgium

Ranked by team size

Top 25 of 1,071 custom web development agencies based in Belgium, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to custom web development agencies: 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	Axecibles	Indirect evidence	Waterloo, Belgium	51-200	197 contacts →
	Indirect evidence “Création et suivi de site Internet pour le PME, PMI (Création graphique, Hébergement, Dévelopements informatiques, Référencement naturel, Positionnement payant, emailing…” Source: RevenueBase Database · checked Sep 1, 2026
2	Uniway Belgium	Partial evidence	Belgium	51-200	76 contacts →
	Partial evidence “Uniway is a Belgian digital solutions web agency, based in Brussels and Ghent (Belgium), specialized in building digital web solutions based like websites, intranet, e-commerce…” Source: RevenueBase Database · checked Sep 1, 2026
3	PHPRO	Indirect evidence	Hasselt, Belgium	51-200	59 contacts →
	Indirect evidence “At PHPro, we build high-performing websites, e-commerce platforms, and applications that truly make an impact, always aligned with your strategic goals.” Source: RevenueBase Database · checked Sep 1, 2026
4	DJM Digital	Partial evidence	Vise, Belgium	11-50	45 contacts →
	Partial evidence “Spécialisée dans les technologies web et mobiles, djm digital est une agence digitale qui réalise pour vous des projets innovants depuis En plus de développer des sites web et des…” Source: RevenueBase Database · checked Sep 1, 2026
5	Synchrone	Partial evidence	Barchon, Belgium	11-50	41 contacts →
	Partial evidence “Synchrone is a Belgian digital agency offering complete solutions for website creation & e-commerce, tailor-made development and digital marketing.” Source: RevenueBase Database · checked Sep 1, 2026
6	Inventis	Indirect evidence	Opglabbeek, Belgium	11-50	32 contacts →
	Indirect evidence “Inventis verzorgt sinds 2003 allerhande webgebaseerde toepassingen, van de meest uitgebreide websites over geavanceerde webapplicaties maar ook promotionele minisites.” Source: RevenueBase Database · checked Sep 1, 2026
7	Hilarious	Indirect evidence	Auderghem, Belgium	11-50	30 contacts →
	Indirect evidence “Hilarious is above all a generous crew livened up by a big sense of curiosity.” Source: RevenueBase Database · checked Sep 1, 2026
8	ESIGN	Indirect evidence	Belgium	11-50	29 contacts →
	Indirect evidence “Esign is met trots onderdeel geworden van Dynamate, een nieuwe, krachtige samenwerking waarin we onze krachten bundelen om digitale groei en innovatie naar een hoger niveau te…” Source: RevenueBase Database · checked Sep 1, 2026
9	Collide	Partial evidence	Herentals, Belgium	11-50	23 contacts →
	Partial evidence “Collide biedt digitale, innovatieve oplossingen en staat voor development op maat.” Source: RevenueBase Database · checked Sep 1, 2026
10	Lodestar	Indirect evidence	Gent, Belgium	11-50	20 contacts →
	Indirect evidence “Wij bedenken, bouwen en beheren websites en webapplicaties.” Source: RevenueBase Database · checked Sep 1, 2026
11	Flux Belgium	Indirect evidence	Antwerpen, Belgium	11-50	19 contacts →
	Indirect evidence “Flux builds websites from A to Z for small and medium sized businesses.” Source: RevenueBase Database · checked Sep 1, 2026
12	TOP On WEB	Partial evidence	Nivelles, Belgium	11-50	19 contacts →
	Partial evidence “Top On Web est une agence web spécialisée dans le référencement et la création de sites Internet.” Source: RevenueBase Database · checked Sep 1, 2026
13	ANVIL	Partial evidence	Kontich, Belgium	11-50	17 contacts →
	Partial evidence “Anvil specialises in website development using the best Content Management Systems (CMS) and frameworks.” Source: RevenueBase Database · checked Sep 1, 2026
14	Opengraphy	Partial evidence	Schaerbeek Bruxelles, Belgium	11-50	16 contacts →
	Partial evidence “OpenGraphy is a leading digital agency that blends cutting-edge technologies with creative expertise to deliver high-impact solutions for web and social media.” Source: RevenueBase Database · checked Sep 1, 2026
15	Sitemanager	Partial evidence	Ghent, Belgium	11-50	16 contacts →
	Partial evidence “The SiteManager platform empowers agencies and web professionals to scale their web design business.” Source: RevenueBase Database · checked Sep 1, 2026
16	Multimedium	Indirect evidence	Hoogstraten, Belgium	11-50	15 contacts →
	Indirect evidence “Multimedium is een team van gepassioneerde internetprofessionals: webdesign, webshops, de ontwikkeling van CMS, SEO, social media, usability en andere webdisciplines zijn onze…” Source: RevenueBase Database · checked Sep 1, 2026
17	Novation	Indirect evidence	Belgium	11-50	15 contacts →
	Indirect evidence “Novation is een digital agency dat gebeten is door de internet-microbe en reeds meer dan 10 jaar ervaring heeft in de sector.” Source: RevenueBase Database · checked Sep 1, 2026
18	Digitalmind	Indirect evidence	Poperinge, Belgium	11-50	13 contacts →
	Indirect evidence “Waar de 'inter' van het internet vroeger eerder stond voor 'inter'essante informatie, is dit vandaag ontegensprekelijk 'inter'actie geworden.” Source: RevenueBase Database · checked Sep 1, 2026
19	Aldrin Agency	Indirect evidence	Antwerpen, Belgium	11-50	12 contacts →
	Indirect evidence “Bij ALDRIN vind je de experts om jouw bedrijf een digitale boost te geven.” Source: RevenueBase Database · checked Sep 1, 2026
20	3sign	Indirect evidence	Belgium	11-50	12 contacts →
	Indirect evidence “3SIGN creates websites.” Source: RevenueBase Database · checked Sep 1, 2026
21	Studio Roger	Indirect evidence	Harelbeke, Belgium	11-50	12 contacts →
	Indirect evidence “Studio Roger, helpt je gericht online groeien.” Source: RevenueBase Database · checked Sep 1, 2026
22	Brainlane	Strong evidence	Hasselt, Belgium	11-50	11 contacts →
	Strong evidence “Brainlane is a Belgian based full service agency, specialized in webdesign, webdevelopment, search engine optimization, custom web solutions, strategy, e-business, e-commerce…” Source: RevenueBase Database · checked Sep 1, 2026
23	I-Logics	Partial evidence	Ixelles, Belgium	11-50	11 contacts →
	Partial evidence “I-Logics is an all-round web based digital communication and digital marketing agency.” Source: RevenueBase Database · checked Sep 1, 2026
24	Great Company	Indirect evidence	Antwerpen, Belgium	11-50	11 contacts →
	Indirect evidence “In today's competitive landscape, a strong digital presence is essential for success.” Source: RevenueBase Database · checked Sep 1, 2026
25	sparkle.tech	Partial evidence	Belgium	11-50	10 contacts →
	Partial evidence “sparkle.tech est une agence de développement spécialisée dans la conception de produits digitaux web, mobile et IA.” Source: RevenueBase Database · checked Sep 1, 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: custom web development agencies. 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 custom web development agencies.
Partial evidence: Its own public description names part of custom web development agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom web development agencies. 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 1,071 custom web development agencies based in Belgium

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Custom web development agencies based in Belgium at a glance

As of Sep 1, 2026

26.5%Verified-email coverage

4.5%Mobile-number coverage

3.4Average contacts per company

1-10Median size (employees)

4.1%Largest-city concentration · Bruxelles

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

966

11-50

51-200

201-500

1,001-5,000

10001+

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 custom web development agencies, 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 “custom web development agencies”. 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 custom web development agencies), 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 custom web development agencies, 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, 960 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 1, 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.

Custom web development agencies by metro

Custom web development agencies in Bruxelles44
Custom web development agencies in Antwerpen32
Custom web development agencies in Brussels30
Custom web development agencies in Gent26

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 custom web development agencies, 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 custom web development agencies are there based in Belgium?

RevenueBase identified 1,071 custom web development agencies 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?

Axecibles, headquartered in Waterloo, tops this list with the largest team on record.

Which city has the most custom web development agencies?

Bruxelles leads with 44 headquartered companies, followed by Antwerpen (32) and Brussels (30).

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 960 verified decision-maker contacts tracked across these 1,071 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 1, 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.