Searchable

Gauge is a San Francisco company from Y Combinator's Summer 2024 batch that offers an AI visibility platform, helping brands track and improve how often they are mentioned and cited in answers from ChatGPT, Gemini, Perplexity and Claude, and helping developer tools get discovered and chosen by AI coding agents via Gauge Agents. It originally built the open-source dependency tool Tach at gauge.sh before pivoting.

Ranketta, founded in 2025 in Brno, Czech Republic, helps brands measure and improve their visibility and conversion in AI search and AI shopping results.

Bluefish AI, founded in 2023 in New York, helps Fortune 500 companies monitor and optimize their brand presence in AI-generated search results and recommendations.

Profound, founded in 2024 in New York, helps brands monitor and improve their visibility in AI search results. The platform processes over 100 million AI search queries per month, supports six languages across 18 countries, and counts Indeed, MongoDB, and Ramp among its customers.

geoSurge, founded in April 2025 in London, offers a corpus engineering approach that helps brands understand and improve how large language models learn and represent them, maintaining brand visibility in AI responses from ChatGPT, Gemini, and Claude across model updates.

Petra Labs is a New York-based enterprise AI search optimization (AEO/GEO) company founded 2025, helping brands measure and improve how they appear in answers from ChatGPT, Claude, Perplexity and Gemini. It pairs proprietary software (demand queries, brand/sentiment/competitor tracking, purchase-intent LLM visibility simulation) with an embedded team and custom last-mile attribution tying AI visibility to traffic, acquisition and revenue.