Karel Callens
Karel Callens is Co-founder and CEO of Luzmo (formerly Cumul.io), a Leuven-based embedded analytics platform purpose-built for SaaS companies.
Karel co-founded Luzmo with Haroen Vermylen and Thomas De Clerck. He brought over 18 years of BI and data visualization experience from senior consultant and manager roles at CSC and the Belgian Ministry of Economics. The company was originally called Cumul.io before rebranding to Luzmo.
Luzmo's platform enables SaaS companies to embed customer-facing analytics directly into their products without building custom visualization tooling. In 2024, the company launched Luzmo IQ, bringing hyper-personalized AI-driven analytics to embedded use cases. Luzmo has a partnership with Lansweeper (also Belgian) as a reference for the strength of the Flemish B2B SaaS ecosystem.Career Highlights
Career
Roles
LuzmoFounderSep 2015 – Present
- FOD Economie / SPF Economie / FPS EconomyBig Data & AnalyticsMar 2014 – Oct 2015
- CSC#65factoryManager EMEA South & West - Big Data & Analytics non-ERPApr 2013 – Mar 2014
- CSC#65factorySenior ConsultantSep 2011 – Mar 2014
- CSC#65factoryConsultantSep 2007 – Sep 2011
Education
- The Johns Hopkins University#166schoolDistinction, Data Analysis2013 - 2013
- APM GroupPRINCE II Foundation2009 - 2009
Université catholique de Louvain#4schoolMaster, Management of innovative organizations2006 - 2007
KU Leuven#1schoolMaster, Handelsingenieur (Economics)2001 - 2006
From public career histories · 9 entries