Fellows Directory

Roald Sieberath


Roald has been an entrepreneur since he graduated as computer science engineer back in 1992. He's been involved as co-founder, shareholder, and board member in a handful of companies that have done video streaming, mobile messaging, ebooks, elearning, Big Data, and business applications. He has raised an aggregate $18M of venture funding, including one failure, one exit, one IPO-bound.

Since 2015, Roald has been a Venture Partner for LeanSquare, a tech seed fund based in Liège, Belgium. He has a keen focus on Impact investing, on Deep Tech, and on leveraging the latter to improve the former. LeanSquare is part of Noshaq, a larger, evergreen fund investing ca. 120 M€ / year, with a portfolio of 300+ companies.

In the past 10 years, Roald spent considerable time coaching startups as part of several accelerators and incubators, including: Microsoft Innovation Center (Belgium), Nest'Up, StarTech, VentureLab, BeCentral, French Tech Culture, YunusSB (Tunisia), and MG Seed (Brazil).

Roald helped set up an AI coding bootcamp franchise. He co-founded BeCentral, the largest digital skills space in Europe, located above Brussels Central Station, home to 40 startups, advocacy groups, and training centers including Google Atelier.

Education, Personal, and Fellowship

Roald has both a deep technical background (computer science engineer, UCLouvain), and a solid business training from Solvay Brussels School, Stanford (EPGC ; VC Unlocked), and Louvain School of Management (Exec MBA).

An avid MOOC learner, he keeps a fresh eye on sectors including blockchain and deep learning. He also teaches entrepreneurship as a guest professor at UCLouvain and at University of Namur.

As a member of Class 23, Roald is serving his fellowship at LeanSquare, under the mentorship of Gaëtan Servais.