Paris-based family office · Pre-seed to Series A
Smart Capital from Builders
C Square Capital combines decades of operational expertise with strategic capital to back ambitious B2B technology and AI founders from pre-seed to Series A
- Companies
- 25
- Partners
- 6
- Founded
- 2025
Who we are
Investment Philosophy
Founded by the Combes and Comets families in 2025, we bring decades of operational expertise across technology, finance, pharmaceuticals, and infrastructure to early-stage B2B technology and AI companies
What We Look For
- 01
Builder Mindset
Founders with the courage and resilience to build from scratch, who see problems as opportunities
- 02
Real-World Impact
Technology companies solving genuine pain points for businesses, not solutions searching for problems
- 03
Coachable Ambition
Teams that dream big but stay grounded, value honest feedback, and iterate quickly
How we invest
Investment Thesis
- Check Size
- €10K - €50KInitial investment per company
- Stage
- Pre-seed to Series AEarly-stage focus with follow-on capacity
- Geography
- GlobalLocation agnostic, talent first
- Sectors
- B2B Tech & AIFocus on enterprise software, biotech, fintech, infrastructure
Beyond the check
More Than Just Capital
We are operators first, investors second. Our value extends far beyond the check
- Proven Track Record
Operational Expertise
35+ years scaling telecoms, tech, and industrial companies. We've sat in your seat — from CEO to board member across multiple continents
- Global Reach
Strategic Network
Direct access to decision-makers across telecommunications, enterprise software, pharma, and infrastructure. Warm intros that open doors
- Long-term Partners
Patient Capital
Family office structure means no fund timelines, no pressure for premature exits. We move at the pace your business requires
FAQ
Questions Founders Ask
What is C Square Capital?
C Square Capital is a Paris-based family office founded in 2025 by the Combes and Comets families. We invest our own capital in early-stage B2B technology and AI startups, and back founders with decades of operating experience
What stage and check size do you invest at?
We invest from pre-seed to Series A. Initial checks range from €10K to €50K per company, with capacity to follow on in later rounds
Which sectors and geographies do you cover?
B2B technology and AI: enterprise software, biotech, fintech and infrastructure. We are location agnostic and invest globally
How is a family office different from a venture capital fund?
We invest family capital, so there are no fund timelines and no pressure for premature exits. We move at the pace the business requires
How do I pitch C Square Capital?
Email your deck to contact@csquarecap.com with the problem you solve, your solution, traction, team and the round you are raising. We reply within 2-3 business days
Ready to scale together?
Join 25 companies already backed by C Square Capital