深度云海

Searchable, founded in 2025 and operating in New York and London, builds an AI search visibility and performance marketing platform that helps brands track and optimize their presence in AI search results including ChatGPT, Claude, and Perplexity.

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.

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.

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.

Graphite (Graphite Growth) is a research-driven growth agency founded in San Francisco in 2019 by Ethan Smith, focused on SEO and Answer Engine Optimization (AEO) so clients gain visibility in both traditional search and AI-generated answers such as ChatGPT. Clients include MasterClass, Thumbtack, Webflow, n8n and Hinge Health.