Company lists · Data refreshed September 2026

Top 25 Enterprise SEO agencies based in Belgium

Name: Enterprise SEO agencies based in Belgium
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 200 companies tracked

There are 200 enterprise SEO agencies headquartered in Belgium (RevenueBase, September 2026). RevenueBase tracks 902 professional contacts across them, including 294 with verified work emails and 35 with mobile numbers. Antwerpen is the largest hub.

This list covers enterprise SEO 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, how directly it supports the match, and when it was last checked. Data refreshed September 2, 2026.

200Companies

902Contacts tracked

294Verified emails

35Mobile numbers

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The 25 largest enterprise SEO agencies based in Belgium

Ranked by team size

Top 25 of 200 enterprise SEO agencies based in Belgium, ranked by team size, largest first. Data refreshed Sep 2, 2026. Evidence rates how directly each company's own description names enterprise SEO agencies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts	Verified emails
1	Bluetime SAIndirect evidence “Créée en 1997, Bluetime SA (anciennement Intelliga SA) est une agence de communication digitale.” Source: company website · checked Sep 2, 2026	Auderghem, Belgium	11-50	39	27
2	UniversemIndirect evidence “Active since 2007, Universem is more than just a digital marketing agency.” Source: company website · checked Sep 2, 2026	Oudergem Brussels, Belgium	11-50	39	15
3	Kixx Strategy In CommunicationIndirect evidence “Als marketingbureau graven we met ons team van experten, we noemen ze kernkrakers, tot in de kern van bedrijven.” Source: company website · checked Sep 2, 2026	Loppem, Belgium	11-50	37	19
4	EteamsysIndirect evidence “eTeamsys is a search engine optimization company located in Luxembourg and Belgium that will bring you better rankings in search engine result pages, increase your traffic…” Source: company website · checked Sep 2, 2026	Liege, Belgium	11-50	30	5
5	Creatic Digital AgencyIndirect evidence “Wij maken online impact bereikbaar voor kmo’s Enkele jaren geleden maakten we één heel bewuste keuze: wij werken enkel voor kmo’s en niet voor overheden, grote bedrijven en…” Source: company website · checked Sep 2, 2026	Pelt, Belgium	11-50	24	16
6	E-NetIndirect evidence “E-net Business est l'agence d'e-communication de référence.” Source: company website · checked Sep 2, 2026	Floreffe, Belgium	11-50	23	12
7	Synapse AgencyIndirect evidence “Digital creatives, data heroes.” Source: company website · checked Sep 2, 2026	Belgium	11-50	22	11
8	SemacticPartial evidence “Stop drowning in confusing SEO audits.” Source: company website · checked Sep 2, 2026	Nivelles Walloon, Belgium	1-10	21	10
9	IdweaverIndirect evidence “Your privileged web agency for e-marketing, web sites, email marketing and search engine optimization.” Source: company website · checked Sep 2, 2026	Waterloo, Belgium	51-200	20	1
10	TOP On WEBIndirect evidence “Top On Web est une agence web spécialisée dans le référencement et la création de sites Internet.” Source: company website · checked Sep 2, 2026	Nivelles, Belgium	11-50	19	11
11	Cookies AgencyIndirect evidence “Cookies Agency est une agence de marketing digital active depuis 2018.” Source: company website · checked Sep 2, 2026	Vise, Belgium	11-50	16	15
12	MultimediumPartial evidence “Multimedium is een team van gepassioneerde internetprofessionals: webdesign, webshops, de ontwikkeling van CMS, SEO, social media, usability en andere webdisciplines zijn onze…” Source: company website · checked Sep 2, 2026	Hoogstraten, Belgium	11-50	15	13
13	RéférenceurIndirect evidence “Referenceur.be™, agence web spécialisée en visibilité sur internet.” Source: company website · checked Sep 2, 2026	Sart-Lez-Spa, Belgium	11-50	14	4
14	InboundIndirect evidence “Inbound is een full service internetcommunicatiebureau met erg veel ervaring in webontwikkeling, internet marketing en webinhoud.” Source: company website · checked Sep 2, 2026	Edegem, Belgium	1-10	14	3
15	Studio RogerIndirect evidence “Studio Roger, helpt je gericht online groeien.” Source: company website · checked Sep 2, 2026	Harelbeke, Belgium	11-50	12	6
16	DigitongIndirect evidence “Hi there!” Source: company website · checked Sep 2, 2026	Tongeren, Belgium	11-50	11	7
17	OctaveIndirect evidence “Nous sommes votre partenaire certifié Google pour le référencement naturel & payant ainsi que l'analyse de vos conversions.” Source: company website · checked Sep 2, 2026	Flemalle, Belgium	1-10	10	9
18	WAT ConsultIndirect evidence Source: company website · checked Sep 2, 2026	Waterloo, Belgium	1-10	9	2
19	DAS MediaIndirect evidence “DAS Media is een digitaal marketing bureau in Waregem en biedt een brede waaier van digitale diensten aan, zoals webdesign, responsive design, ontwikkeling van websites en…” Source: company website · checked Sep 2, 2026	Belgium	11-50	7	6
20	Applic GroupIndirect evidence “Applic Group specialises in internet marketing and the design and development of websites and webshops.” Source: company website · checked Sep 2, 2026	Antwerpen, Belgium	1-10	7	3
21	Link OptimizerIndirect evidence “Link Optimizer laat uw klanten scoren.” Source: company website · checked Sep 2, 2026	Jabbeke, Belgium	1-10	7	1
22	SynexisIndirect evidence “Internet est devenu un média incontournable tant au niveau personnel que professionnel.” Source: company website · checked Sep 2, 2026	Anderlecht, Belgium	1-10	6	3
23	EazyclickIndirect evidence “Trop de PME belges ont un site web qui existe.” Source: company website · checked Sep 2, 2026	Ukkel Brussels, Belgium	11-50	5	1
24	JNB WEB PromotionPartial evidence “Wij bieden professionele SEO diensten om uw organische zoekresultaten drastisch te verhogen en de hoogste posities te bereiken - ook als het gaat om zeer concurrerende zoekwoorden.” Source: company website · checked Sep 2, 2026	Baarle-Hertog, Belgium	1-10	4	1
25	komate.beIndirect evidence “We are Komate, proud to be your strategic partner in online marketing.” Source: company website · checked Sep 2, 2026	Belgium	1-10	3	3

Showing 25 of 200 enterprise SEO agencies based in Belgium

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Enterprise SEO agencies based in Belgium at a glance

As of Sep 2, 2026

1-10Median size (employees)

AntwerpenLargest hub · 14 HQs

35Contacts with mobile numbers

Sep 2, 2026Data refreshed

Companies by employee count

1-10

167

11-50

51-200

Enterprise SEO agencies by metro

Metro	Companies
Enterprise SEO agencies in Antwerpen	14
Enterprise SEO agencies in Antwerp	8
Enterprise SEO agencies in Brussels	7
Enterprise SEO agencies in Bruxelles	6
Enterprise SEO agencies in Mont-Saint-Guibert	4
Enterprise SEO agencies in Sint-Niklaas	3
Enterprise SEO agencies in Liege	3

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 enterprise SEO agencies, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
What qualifies: Companies headquartered in Belgium whose own description of what they do matches “enterprise SEO agencies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among enterprise SEO 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 an evidence rating so you can judge each match yourself.
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, 294 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 2, 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

How many enterprise SEO agencies are there based in Belgium?

There are 200 enterprise SEO agencies headquartered in Belgium as of September 2026 (RevenueBase).

What is the largest company on this list?

Bluetime SA, headquartered in Auderghem, tops this list with the largest team on record.

Which city has the most enterprise SEO agencies?

Antwerpen leads with 14 headquartered companies, followed by Antwerp (8) and Brussels (7).

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 294 verified decision-maker contacts tracked across these 200 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 2, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.