Rank Science

RankScience is an SEO and AI search optimization agency serving startups, SaaS companies, B2B businesses and local service businesses, founded in Y Combinator's W17 batch. RankScience has helped hundreds of clients grow their visibility across ChatGPT, Google AI Overviews, Gemini, Perplexity, Google AI Mode and Claude. Clients include Zapier, Calm and Rippling, as well as local businesses in healthcare, legal and professional services. RankScience discontinued all software products in 2024, including the SEO A/B testing platform and ContentEdge AI copywriting tool, along with PPC services. RankScience now focuses exclusively on SEO and AI search optimization. RankScience delivers four core services spanning Google organic search and AI platforms. SEO Foundation builds sustainable organic traffic through technical optimization, content strategy and authority building. RankScience's Generative Engine Optimization (GEO) helps businesses appear in AI search results from ChatGPT, Google AI Overviews, Gemini, Perplexity, Google AI Mode and Claude. RankScience's Large Language Model Optimization (LLMO) makes content readable to AI training systems and context windows. RankScience's Answer Engine Optimization (AEO) positions a business as the cited source when AI platforms answer user questions. RankScience embeds directly with each client's team, working alongside founders, marketers and growth leads. The agency reports on rankings, organic traffic and revenue from its San Francisco headquarters, serving clients across the United States and internationally.