Stijn Vande Casteele

Cybersecurity / AI Entrepreneur - Tech Investor

📍 Belgium🔄 Updated September 2026💼 1 investments📅 2 years investing🗓 Last invested Jan 2024
Operator-angel🌍 Belgium
1
Total investments
1
Early stage
0
Mid stage
0
Late stage
2y
Years active

Portfolio

1 investments · sorted by recency
All investments
Early stage
Mid stage
Late stage
Investor
Jan 2024
Syndicate One is an international network-driven fund making early-stage investments into high-potential Belgium-based and Belgian-founded tech startups. Syndicate One pools valuable expertise, a vast international network, and smart seed capital from an impressive group of experienced founders, operators and professional investors to help young Belgian startups reach the next level. Additionally, Syndicate One frequently launches targeted initiatives to strengthen Belgium’s tech ecosystem, such as the first standardised convertible note agreement fit for the Belgian market, the ‘State of Belgian Tech Report’, and industry events. In its first four years, Syndicate One has invested in two unicorns, Aikido Security and Fundamental, as well as high-growth companies like Techwolf, Conveo, Sirona Technologies, Donna, Tekst, Cosmic Aerospace, Powernaut, SAPI, Mindoo and other promising startups.
Experience · 3 entries
All (3)
Investments (1)
Founder (2)
2024
Investor
Jan 2024
Syndicate One is an international network-driven fund making early-stage investments into high-potential Belgium-based and Belgian-founded tech startups. Syndicate One pools valuable expertise, a vast international network, and smart seed capital from an impressive group of experienced founders, operators and professional investors to help young Belgian startups reach the next level. Additionally, Syndicate One frequently launches targeted initiatives to strengthen Belgium’s tech ecosystem, such as the first standardised convertible note agreement fit for the Belgian market, the ‘State of Belgian Tech Report’, and industry events. In its first four years, Syndicate One has invested in two unicorns, Aikido Security and Fundamental, as well as high-growth companies like Techwolf, Conveo, Sirona Technologies, Donna, Tekst, Cosmic Aerospace, Powernaut, SAPI, Mindoo and other promising startups.
2016
Founder
Oct 2016
Outpost24 helps organizations improve cyber resilience with a complete range of solutions that enable Continuous Threat Exposure Management (CTEM). Our intelligent cloud platform unifies asset management, automates vulnerability assessment, and quantifies cyber risk in business context. Executives and security teams around the world trust Outpost24 to identify and prioritize the most important security issues across their attack surface to accelerate risk reduction. To learn more about our products and services go to https://outpost24.com
2012
Owner
Dec 2012
Intelligent Security (INSEC) is providing independent consultancy services to clients in various sectors.