Bersyn measures how ChatGPT, Claude, Perplexity, and Gemini describe your B2B SaaS product to buyers, classifies the gaps, and generates the content that closes them. Reykjavík, Iceland.
Bersyn was founded in 2026 in Reykjavík, Iceland after years of building B2B SaaS products that ranked on Google but were invisible to AI assistants. When buyers ask ChatGPT or Claude which tool to use, they get one synthesised answer — not ten links to evaluate. If your product is not in that answer, you do not exist for that buyer.
Bersyn closes that gap. We measure how the four AI assistants describe your product, classify why they get it wrong, and generate the specific content that fixes each gap. Built on a calm protocol — Attest, Measure, Act,Prove.
Our stack
Next.js 16 (App Router) on Vercel. React 19 with TypeScript and Tailwind 4.Supabase Postgres with row-level security and Auth. Resend for transactional email on bersyn.com plus cold outbound on a dedicated send.bersyn.com subdomain. LemonSqueezy for billing. Sentry for monitoring. Direct LLM API calls to OpenAI (GPT-4o), Anthropic (Claude Sonnet 4.5), Perplexity (Sonar), and Google (Gemini 2.0 Flash) for the GEO scanner. Ed25519 cryptographic signing of Product Identity documents.
