Our Company

Digital HR experts that guide you in your move to cloud HR .

Adessa is part of SD Worx, one of the leading digital HR companies in Europe. As a dedicated brand, we focus on HR services and technologies based on third party HCM & SD Worx technology. We specialise in large and mid-market enterprises and public customers across Europe.

Why Adessa


European Countries






Years of Experience


certified consultants in SAP, SF, WFS

Proudly partners

with the finest HR solutions providers

Our Story

Adessa was founded in 2005, but our history goes a long way with SD Worx and launch!.  Swipe to learn more about us!


SD Worx was founded as a payroll administration company in Belgium


SD Worx started as SAP HCM Partner in Belgium


Adessa Group was founded as a SAP HCM Partner in Belgium


launch!  was founded as SAP HCM partner in the Netherlands


Adessa Group opened offices in Switzerland


launch! became a SAP SuccessFactors partner


Adessa Group opened offices in Spain


Adessa Group started WorkForce Management services with Kronos (now UKG) and WorkForce Software


Adessa Group opened offices in Germany & France


SD Worx acquired Adessa Group, merging their SAP HCM departments and growing from 65 employees to 350


Adessa, an SD Worx Company acquired launch! and received the SAP Gold partnership


Adessa, an SD Worx company is active in 17 European countries and reached over 650 employees

Bas Ossewaarde

Adessa is a unique brand with a unique culture that enables its people to deliver top-notch services to its customers.

Bas Ossewaarde, Managing Director at Adessa

Our Values

We have been able to make a difference in so many businesses’ and people’s lives by staying in line with our values.

Customer first: We always have the client’s best interest at heart. We align closely in the research and quest for long-term sustainable solutions.

We deliver technology with a human touch, collaborating with our customers in order to fully understand their constraints and objectives.

We’re committed to deliver quality and effectiveness.

We are open-minded and promote the development of skills by adopting a culture of knowledge transfer, both within our organisation and with our customers.

A spirit of teamwork and cooperation. We help each other be at our best.

Commitment, professional attitude.

Our Global Locations

As a pan-European technology & services consultancy, we have local expertise. Find out where we are located.

Ready to talk?

Please tell us about your current or future HR needs. One of our local experts in your region will contact you directly and help you choose the right solutions to meet your goals.