Relixir, a San Francisco, CA-based AI search inbound engine, has raised $2 million in a Seed funding round.
Investors
The round was led by Y Combinator, with participation from z21 Ventures, 468 Capital, DG Daiwa Ventures, Vijay Krishnan (Founder of Turing), and others.
Y Combinator (YC) is a technology startup accelerator and venture capital firm founded in March 2005. YC runs an intensive three-month program twice a year, providing accepted startups with $500,000 in standardized Seed funding along with hands-on mentorship to help them achieve product–market fit and rapid growth.
Relixir Use of Funds
The company will use the funding to scale its platform, expand its team, and enhance its AI search inbound engine.
About Relixir
Relixir is a company that offers an AI generative engine optimization platform designed to help brands increase visibility in AI-powered search and answer engines. Its inbound engine for AI search helps B2B brands generate qualified leads from AI search engines. The platform monitors brand visibility and automatically generates optimized content to get brands cited as authoritative answers—then ties it to inbound attribution so teams can see which queries and answers drive pipeline growth. Since its launch in early 2025, Relixir has delivered over 10,000 inbound leads for more than 200 fast-growing B2B and B2C companies, including Rippling, Airwallex, and HackerRank.
Funding Details
Company: Relixir, Inc.
Raised: $2.0M
Round: Seed
Funding Date: November 2025
Lead Investor: Y Combinator
Additional Investors: z21 Ventures, 468 Capital, DG Daiwa Ventures, Vijay Krishnan, others
Company Website: https://www.relixir.com/
Software Category: AI Search / Generative Engine Optimization (GEO)
Source: Lauren Schiffman – PressFriendly