Do Mantis Capital and Y Combinator invest together?

Yes — Mantis Capital and Y Combinator appear together in 9 tracked portfolio companies, including Beacons, BeGo, Jeeves, Kalshi, Openlayer.

How do Mantis Capital and Y Combinator compare on check size?

Mantis Capital typically writes checks of $100K – $1M, while Y Combinator writes $500K.

Two firms that co-invest: side by side on stage, sector, check size, and track record, from public filings and the firms' own sites.

	Mantis Capital	Y Combinator
Type	Venture capital	Accelerator
HQ	Santa Monica	San Francisco
Founded	2019	2005
Check size	$100K – $1M	$500K
Stages	Seed, Series A	Pre-Seed, Seed, Series A
Sectors	AI & Machine Learning, Consumer, Crypto & Web3, Cybersecurity, Digital Health, EdTech, Enterprise Software, Fintech, Gaming, Mental Health, SaaS, Sales Tech	AI & Machine Learning, Biotech, Climate Tech, Deep Tech, EdTech, Robotics, SaaS, Sector Agnostic, Space Tech
Tracked investments	141	6,130
Exits (acquired/public)	3	839
Led rounds on record	—	21
Dated deals, last 24 mo	2	1304

Do Mantis Capital and Y Combinator invest together?: Yes — Mantis Capital and Y Combinator appear together in 9 tracked portfolio companies, including Beacons, BeGo, Jeeves, Kalshi, Openlayer.
How do Mantis Capital and Y Combinator compare on check size?: Mantis Capital typically writes checks of $100K – $1M, while Y Combinator writes $500K.