Jorn Vanysacker

TLDR

Jorn Vanysacker co-founded Henchman, a Ghent legal AI startup acquired by LexisNexis in 2024, and then co-founded 100IN, a EUR 12M pre-seed fund writing EUR 100K checks to 100 Belgian startups.

Overview

Jorn Vanysacker's career demonstrates the exit-to-investor trajectory that has become one of the defining patterns in Belgian tech over the past decade.

He first founded Rendeevoo, an earlier venture, before co-founding Henchman in 2020 alongside Gilles Mattelin and Wouter Van Respaille. Henchman was conceived during the COVID pandemic with the idea of building an AI "Chief of Staff" for legal professionals: a tool that helps lawyers search and reuse clauses from their own contract history when drafting new agreements.

Henchman launched in June 2021 and grew 750% in revenue within its first years, reaching 100+ customers across 15 countries. The company raised EUR 6.5M in a Series A round in 2023. In June 2024, LexisNexis acquired Henchman and integrated it into the Lexis Create+ product. The deal was positioned as a strategic fit: Henchman needed content depth that only LexisNexis could provide.

Following the acquisition, Jorn and Gilles Mattelin launched 100IN, a EUR 12M pre-seed vehicle structured around a highly systematic model: EUR 100K tickets to 100 startups. The goal is to serve as the first institutional check for Belgian founders. Julie Capiau joined as a third partner, bringing a different background from consumer brands and Brussels.

The fund positions itself against the traditional Belgian angel model of ad hoc deal-by-deal investing, offering founders a faster and more systematized entry into the Belgian funding chain.

Career History

• Managing Partner at 100IN (2024 - present), EUR 12M pre-seed fund
• Co-Founder & Co-CEO at Henchman (2020 - 2024), legal AI, acquired by LexisNexis 2024
• Founder at Rendeevoo (earlier venture)

About

Jorn is a product of the Ghent legal tech cluster. His co-CEO arrangement with Gilles Mattelin at Henchman reflects the deliberate splitting of responsibilities (product/tech and commercial) that characterizes the Ghent co-founder model. His post-exit path into fund management follows the Lorenz Bogaert / Nicolas Van Eenaeme archetype.

Notes

Good representative of the Belgian exit-to-fund-manager pattern. The 100IN model is worth tracking as it matures and portfolio companies progress to seed and Series A. Jorn is also speaker at The Future.be conferences, giving him public ecosystem visibility.