Referrals
Most of our customers are located in Belgium as you find on the map below. Since 2023 we are extending our services abroad.
Every customer has another story of success. Thanks to a professional experience on different kind of companies and a flexible attitude, we deal with every kind of story.
Katholiek Onderwijs
“The platform was commissioned by 115 supervisors after completion. Callista takes a very organised approach, giving demos to our staff and working step by step towards a unified result.”
Lauwereys
“The platform was commissioned by 115 supervisors after completion. Callista takes a very organised approach, giving demos to our staff and working step by step towards a unified result.”
Group Advance
“Using the Callista BuildEase module has greatly simplified our workflow. There are much less errors and following up projects is now much easier. Moreover, Callista's staff are always quick to help me if I have questions about anything.”
CTC Moyson
“Thanks to Callista, we have radically transformed our work processes. Our 85 service staff can now work much more efficiently with access to planning and work orders from any location.”
