Companies · category

Top Software Development Companies in Belgium

115 IT service providers ranked by rating, review volume and listing quality.

Software development here means building software to order — a product, an internal system, or a replacement for something that has outgrown a spreadsheet. It spans firms that take a specification and deliver against it, and teams that work discovery-first and expect the specification to change.

The distinction worth establishing early is who owns the decisions. A supplier that builds exactly what was asked will deliver exactly what was asked, including the parts that were wrong. A partner that pushes back costs more in meetings and less in rework. Neither is better in the abstract; they suit different buyers and different projects, and the mismatch is where these engagements go wrong.

Want your company here?

Between them, the 115 IT service providers on this page cover IT services (99), web development (87), frontend (49) and web design (42). 109 of them have written a profile you can read before you get in touch.

Filter by fitbudget, engagement, size and more

Eonix SA
Search Engine Optimization · IT Services · Web Development
Eonix is a UCL university spin-off created in 2007. It is active in data acquisition and management.
Write a review
Tobania
Social Media Marketing · IT Services · Web Design
As the leading Belgian Business & Technology Consulting firm, we guide your company through your digital business transformation.
Write a review
Think Tomorrow
Social Media Marketing · Search Engine Optimization · Web Development
Think Tomorrow is an interactive marketing agency and we provide social media marketing, web optimization and advertising with a strong strategy.
Write a review
Wepika
Social Media Marketing · Search Engine Optimization · IT Services
Are you looking for a trusted partner for your e-commerce project?
Write a review
GANTNER Benelux-UK
IT Services · Web Development · Frontend
GANTNER has been offering its clients high-quality total solutions for software automation of swimming pools, sports, youth and wellness centers, museums, zoos, amusement parks and…
Write a review
Be-Mobile
IT Services · Web Development · Big Data
As a world leader in smart mobility, Be-Mobile offers a wide array of smart mobility solutions to help public authorities, road operators and private companies improve daily…
Write a review
Teamleader CRM
CRM Development · CRM
Teamleader helps you and your team to work smarter, so your small business thrives.
Write a review
Eezee-It
ERP Software Development · Web Development · CRM Development
ODOO #OPENSOURCE #ERP and #CRM \ \ ODOO INTEGRATION & DEVELOPMENT\ \ Eezee-It is a Belgian company partner of ODOO (former Open ERP).
Write a review
Sparklink
IT Services · Web Development · Cloud
We help companies stand out and meet evolving customer expectations by reshaping how work is done. On a mission to make it simpler, more pleasant, and more productive.
Write a review
Marlon
Social Media Marketing · Search Engine Optimization · IT Services
Marlon is a full-service web agency. We design and develop web applications, websites, and webshops with a focus on usability, flexibility, and manageability.
Write a review
Calibrate
Search Engine Optimization · IT Services · Web Development
In the past 15 years, we have gained large expertise in consulting organizations in various industries on developing tailor-made solutions using various open-source tools and…
Write a review
Aranea Labs
IT Services · Web Development · Web Design
Expert in custom software, innovative digital solutions, honest IT advice and very proud of our own software products (Notify … check it out!).
Write a review
Smals
IT Services · Web Development · Web Design
Smals realizes innovative IT projects and services for work, family, and health for social security and healthcare institutions and offers them a wide range of IT services.
Write a review
NSI IT Software & Services
Artificial Intelligence - AI · Mobile App Development · ERP Software Development
Together, let's build the solutions of tomorrow. We provide world-class products and services to develop the best recipes for the success of your business or organization.
Write a review
Appamist
Mobile App Development · IT Services · Web Development
Grow Your Business !! Create Innovative Apps !! We build secure high-quality innovative apps for Mobile & Web, in close cooperation with your company, while challenging you to…
Write a review
Thalento
IT Services · Frontend · Backend
Talent Solutions that drive Workforce Optimisation through Personality & Motivation Assessments, Behavioural & Cognitive Tests, Competency Solutions, People Analytics & Learning…
Write a review
CentralApp
Social Media Marketing · Web Development · Digital Marketing
CentralApp is a successful international Belgian startup. After raising 500k€ from the founders of Keytrade and Skynet, CentralApp has developed a platform that digitally…
Write a review
Optimy
IT Services · Web Development · Frontend
The customer-oriented sponsorship & grant management software trusted by more than 250 organizations worldwide with a retention rate of 95%.
Write a review
Cognizone
IT Services · Web Development · Web Design
Cognizone is a startup of several ICT engineers, experienced in different computer science disciplines, working with data and semantics for the last 15 years, providing…
Write a review
Go4Logistics
Custom Software Development · IT Services · Web Development
Go4Logistics develops software solutions for transport & logistics companies.
Write a review
Clear bvba
Mobile App Development · IT Services · Web Development
Welcome to Clear - a brand new Digital Agency. We've combined the best content, frontend, backend and mobile developers, advertising specialists and social media strategists to…
Write a review
Connective
IT Services · Web Development · Web Design
WE Redesign your identity & Signature Driven Processes Into an Unparalleled User Experience Connective is a key player in delivering European Identity services & digital signature…
Write a review
Business & Decision Belgium
Artificial Intelligence - AI · IT Services · Web Development
Business & Decision (B&D) is an international consulting, management and systems integration group that answers business needs by being a trusted partner for digital and data…
Write a review
Flow Pilots
IT Services · Web Development · Web Design
At Flow Pilots, we believe that the smart use of smart digital technologies will be a key driver in the success of modern companies. That is why we don’t just develop apps.
Write a review

For vendors

Want to see your company here?

The order is earned: ratings, verified reviews and listing quality decide it, and nobody can pay to move up. There are two ways to stand out, and each one says what it is.

Not on TrustList yet? Add your company or claim its listing, free.

Get vetted

Free

We check your registration, your website and your clients
Approved listings show the Verified badge here and on their profile
It earns a rank number and counts towards the TrustList Score; renewed yearly

Apply for vetting How vetting works

Sponsor the Software Development ranking

Paid · always labelled

A Sponsored card above the Software Development ranked list
Marked Sponsored, and it never changes the order
Booked by the month; cancel any time

Book a spot See prices

Software Development in other countries

Other services in Belgium

Same subject

More it service providers rankings

Every other way we rank it service providers — by what they do and where they are.

All 284 rankings

Articles

More categories

Jump to another ranked category.

All categories

Keep exploring

More on TrustList

Everything here links back to the same verified catalogue. Pick your next stop.

Top Software Development Companies in Belgium

Eonix SA

Tobania

Think Tomorrow

Wepika

GANTNER Benelux-UK

Be-Mobile

Teamleader CRM

Eezee-It

Sparklink

Marlon

Calibrate

Aranea Labs

Smals

NSI IT Software & Services

Appamist

Thalento

CentralApp

Optimy

Cognizone

Go4Logistics

Clear bvba

Connective

Business & Decision Belgium

Flow Pilots

Want to see your company here?

Get vetted

Sponsor the Software Development ranking

Software Development in other countries

Other services in Belgium

More it service providers rankings

Related reading

Cloudflare Artifacts, versioned Git-style storage for AI agents, starts billing on 15 October 2026

Atlassian removes legacy Jira Forge dashboard modules on 17 May 2027: app makers must migrate to the new dashboards modules

AI API retirements: Claude Sonnet 4.5 retires on 30 November 2026; three OpenAI models leave the API on 1 April 2027

More categories

More on TrustList