Booko
YC W26San Francisco, US · Founded 2025 · 2 employees · Hiring · 9 known investors
Find your way into Booko
Sign up to see every warm intro you have to Booko
- Paths you didn't know you had: your email and LinkedIn already hold routes to the Booko team. We find them for you
- 2nd- and 3rd-degree connections: the friend-of-a-friend routes that take hours to manually find through your inbox or LinkedIn
- Answers now, not in days: momentum is everything in a raise. Skip asking around whether someone knows someone
Days of research, done the moment you sign in, with every route ranked by how warm it is.
Booko uses AI to predict which service appointment slots won't fill and automatically applies targeted discounts to recover revenue from unsold time. The platform integrates with existing booking systems (MindBody, Mariana Tek, etc.) to analyze demand patterns and incentivize customers to book previously empty slots across fitness studios, salons, med spas, consulting, and similar service businesses.
Also known as Booko App, Inc.
Founders & leadership· Y Combinator alumni (W26)
Booko was founded in 2025 by Will Hall and Arjun Saluja.


Investors · 9
How we know: the Y Combinator directory · press coverage · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
Related companies · 1
Companies working in the same space as Booko.
Legal entities · 1
corporate structureIn the news
Frequently asked questions
- What does Booko do?
- Booko uses AI to predict which service appointment slots won't fill and automatically applies targeted discounts to recover revenue from unsold time. The platform integrates with existing booking systems (MindBody, Mariana Tek, etc.) to analyze demand patterns and incentivize customers to book previously empty slots across fitness studios, salons, med spas, consulting, and similar service businesses.
- Who founded Booko?
- Booko was founded by Will Hall, Arjun Saluja in 2025.
- Who are Booko's investors?
- Booko's investors include Y Combinator, Alumni Ventures, Batch Ventures, Blast.Club, BoxGroup, C Square Capital, Phosphor Capital, Premise Ventures and 1 more.
- Where is Booko headquartered?
- Booko is headquartered in San Francisco, US.



