Neil Rimer co-founded Index Ventures in 1996 after building its venture activity from within his father's Geneva-based brokerage firm, giving him a founder's perspective on creating a venture firm from scratch. He has served as board co-chair at Human Rights Watch while becoming one of Europe's most recognized tech investors, particularly known for leading early investments in major gaming companies like Supercell and Roblox and advocating for Europe as an entrepreneurial continent.

• A sharp focus on product quality and user experience. He frequently offers critique on services that have great content but poor technical execution, such as expressing frustration with the F1 TV app for bad audio syncing or complaining about the friction of constantly logging into the Discogs app. Conversely, he praises tools that enable better communication and seamless presentation.
• Deep engagement with human rights and global social justice. He is heavily involved with Human Rights Watch and consistently highlights the importance of press freedom, holding power to account, and protecting vulnerable populations. He respects organizations that pursue justice and transparency, suggesting he connects well with founders who demonstrate strong ethical leadership.
• Interest in category-defining platforms that empower communities rather than just distributing content. He provided a deep analysis of Roblox, noting how it creates value by giving tools to creators to build their own experiences and social connections, contrasting this model with traditional media companies like Disney that rely on acquiring talent and content.
• Valuing operational experience and talent acquisition. He advises aspiring investors to first work inside startups to gain experience managing people, budgets, and products. He also actively engages in policy discussions regarding how to unblock talent bottlenecks in European tech hubs to help startups scale more effectively.