Tony Kim
Founder, CEO
Presales & solutions at Ripple, working with Tier-1 banks. Now also leads engineering at InlookAI and Ageospatial. Started Zephior after writing 150+ proposals by hand.
LinkedIn →Company
Built by operators who lived the problem.
We started Zephior in Lausanne in 2024 because we saw the same pattern across every industry: organisations losing deals not because they weren't qualified, but because the proposal process was broken.
Our thesis
AI changes the economics of responding.
When generating a high-quality proposal response takes minutes instead of days, the entire procurement landscape shifts. Smaller companies can compete with incumbents. Qualified sellers stop losing to better-resourced ones. Buyers get better responses from a wider field.
We're not building a writing tool. We're building the intelligence layer between buyers and sellers, understanding what each side needs and closing the gap.
The team
Small, senior, shipping.
Built by people who have written the proposals, run the compliance, and shipped the software.
Sebastien Thevenaz
Founding Engineer
Founded and led InvestGlass as CTO, a Swiss client-management platform for banking and wealth. 10+ years building enterprise software.
Advisors
Laurent De Carlo
Risk & Compliance
Chief Compliance & Risk Officer at Groupe Mutuel.
Reiner Guthier
Banking & FinTech
50 years banking, 25 years in board positions.
Alexander Vizi
Growth & Operations
Invesco ETF Distribution. Co-founder, Go Kidogo.