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Top 53 SaaS Companies in Brussels, Belgium, May 2026

As of May 2026, there are 53 SaaS companies based in Brussels. They have combined revenues of $446.8M and employ 3.4K employees. They've raised $16.3M in capital and serve 547.2K customers combined.

Companies
53
Revenue
$446.8M
Funding
$16.3M
Employees
3.4K

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Top SaaS Companies in Brussels

Showing 10 of 7 companies ranked by annual revenue.

1
Kampani

Brussels, Brussels, Belgium

Kampani is a pioneering way to fight poverty and promote development. It invests in producer organisations and agri SMEs in the Global South.

Revenue
$49.7M
Customers
-
Year founded
-
Funding
-
Team size
192
Growth
-
2
Efficy

Brussels, Brussels, Belgium

Trusted by over 13,500 customers and empowering more than 330,000 users, efficy is Europe’s leading provider of flexible, scalable, and powerful CRM solutions. Our Mission We are the CRM partner that connects people, technology and intelligence to elevate customers’ experience, cultivating seamless collaboration with agile solutions. Our Vision We bring together human intuition and smart technology, to create clarity, trust and insights, leading to stronger and more sustainable connections. Our Values We connect, deliver, innovate, cultivate trust and embrace diversity!

Revenue
$47.7M
Customers
-
Year founded
2005
Funding
-
Team size
434
Growth
-
3
Aukera Energy

Brussels, Brussels Region, Belgium

Aukera Energy is a renewable energy company focused on leading the global transition to clean energy across Europe. The company develops, invests in, and operates grid scale renewable energy assets.

Revenue
$44.9M
Customers
-
Year founded
2021
Funding
-
Team size
116
Growth
-
4
Nodalview

Brussels, Belgium

virtual tour solutions for real estate

Revenue
$15M
Customers
-
Year founded
2016
Funding
$6.8M
Team size
63
Growth
-
5
Maxflow(CrazyGames)

Brussels, Brussels-Capital Region, Belgium

CrazyGames is a browser games platform that hosts a variety of HTML5 games, garnering over 300,000,000 instant gameplays each month. The company aims to provide a user-friendly platform for playing games online for free.

Revenue
$13.9M
Customers
-
Year founded
-
Funding
-
Team size
100
Growth
-
6
AppTweak

Brussels, Brussels Region, Belgium

AppTweak is an App Store Marketing & Intelligence Platform driven by data science, enabling mobile leaders to optimize their app’s organic and paid performance in the app stores. AppTweak stands out as the industry's most comprehensive platform, providing ASO Intelligence, Search Ads Campaign Management, App Store Review Management, and Market Intelligence. We empower app marketers with tools, data, and managed services to make more informed decisions and stay ahead of the competition. At the core of AppTweak is Atlas AI, our proprietary deep-learning language model trained on app store data since 2014. This technology, combined with unparalleled support, makes AppTweak the trusted partner for mobile leaders such as Uber, Zynga, and The North Face. AppTweak's Privacy Policy: https://www.apptweak.com/en/legal/privacy-policy AppTweak's VAT: BE0839.873.510

Revenue
$13.3M
Customers
-
Year founded
2014
Funding
-
Team size
121
Growth
-
7
e-OER

Brussels, Belgium

e-OER is a company that specializes in digital transformation for organizations.

Revenue
$10.1M
Customers
-
Year founded
1981
Funding
-
Team size
16
Growth
38.67%