Index Ventures evolved from a 1970s Swiss bond-trading firm into a transatlantic VC with permanent hubs in Geneva, London, San Francisco and New York, operating a "one fund, one team" model where the same partnership backs companies from seed through growth across geographies. The firm has built detailed playbooks and tools for European founders expanding to the US, including five specific expansion archetypes and data-driven hiring guidance from analyzing 200,000+ career profiles, while also shaping European startup policy through research that pushed multiple governments to reform stock-option tax rules.