The company

Thesys SRL is a Belgian company active in the ICT field since 2004.

We put our know-how at the service of our customers, whether by accompanying them to realize their projects, by realizing them ourselves or by completing their operational teams on site.

Our philosophy

Competence and simplicity.

We are craftsmen in the first sense of the word. Our pride comes from the quality of the projects we carry out and the satisfaction of our customers.

Realizing our projects on-time on-budget with a human approach, always positive and with a good mood is more than essential: it is our goal in life.

Our solutions

Customized and always adapted to your needs and your budget

ERP development for your company or a simple application to facilitate management, realization of a personalized Webshop or a major Marketplace, design of your website, complete outsourcing of your IT, consultancy, provision of staff, ...
Learn more...

Our references

In Belgium and much further

Our European clients are present in fields as varied as credit insurance, metal processing, construction, trading, real estate, bank-insurance, etc.
Learn more...

Our partners

A complete outsourced IT service

In partnership with Expranet, we offer the complete outsourcing of your computer system. This is the possibility for SMEs who do not want to have IT staff to have a complete outsourced IT team covering network needs, security, IT management and application development.
Learn more...

Our solutions

ERP development
ERP development

Several large European companies have trusted our teams to achieve and maintain their ERP managing their entire business. Made-to-measure developments that meet exactly the business needs of your business.

Integrating your ERP with your accounting system
Integrating your ERP with your accounting system

Injecting your invoices from your ERP automatically into your accounting system, reporting payment information in real time to your sales teams is an important operational gain for your business. We have made it a specialty by interfacing accounts such as SAP FICO, BOB, WINBOOKS, ...

Implementing your application architecture
Implementing your application architecture

Move from the Cobol world to a multi-tier object-oriented architecture, migrate archaic applications to Web and Mobile applications, realize interoperable messaging platforms.

E-Commerce: Webshop, Marketplace, integration of online payment solutions, ...
E-Commerce: Webshop, Marketplace, integration of online payment solutions, ...

Our teams recently created the new Belgian market-place Beltik, dedicated to Belgian craftsmen and designers.

Want to make your custom web shop? Or implement a payment solution in your e-commerce site (ING, KBC, Stripe, etc.). Or why not launch your own custom developed marketplace?

Web Design
Web Design

We advise you to build your website, adapt your existing site to mobile platforms (responsive design), develop your 'App' on mobile.


We have been active in the field of consultancy for more than 20 years. Whether in project management, application development, application architecture (pattern or implementation), etc.

Our references

logo Credendo
Credendo Group

logo 2RS
Risk & Reinsurance Solutions

logo JGI
Jean Goldschmidt International

logo Hydrometal

logo Cogeco

logo Cegeka

logo Beltik

logo Belgikie

logo Ysiarc

Our partners


IT Infrastructure Management

Business Inside Software

Application development


Headquarters :

Thesys SRL

Rue des Myosotis 52
1180 UCCLE

Phone number

+32 473 56 47 80

Opening hours

Monday – Friday 8am – 6pm

Client space

Remote assistance

Please use the form below to allow remote control of your computer :