Kamil Rextin

I build companies and tools at the intersection of AI and B2B marketing. Founder of 42 Agency, 42Slash, and Marvin.

I spend most of my time thinking about how AI changes the way we do demand generation and paid media. I write about B2B marketing, growth, and building companies.

• 42 Agency — B2B demand generation and paid media
• 42Slash — AI-powered marketing tools
• Marvin — AI assistant for marketing teams