Do Clocktower Ventures and Y Combinator invest together?

Yes — Clocktower Ventures and Y Combinator appear together in 18 tracked portfolio companies, including Affinity, Arc, Benepass, Casca, Concourse.

How do Clocktower Ventures and Y Combinator compare on check size?

Clocktower Ventures typically writes checks of $100K – $20M, 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.

	Clocktower Ventures	Y Combinator
Type	Venture capital	Accelerator
HQ	Santa Monica	San Francisco
Founded	2007	2005
Check size	$100K – $20M	$500K
Stages	Seed, Series A, Series B, Series C, Growth	Pre-Seed, Seed, Series A
Sectors	Consumer, Enterprise Software, Fintech, Retail Tech, SaaS	AI & Machine Learning, Biotech, Climate Tech, Deep Tech, EdTech, Robotics, SaaS, Sector Agnostic, Space Tech
AUM	$2.3B	—
Tracked investments	220	6,130
Exits (acquired/public)	2	839
Led rounds on record	—	21
Dated deals, last 24 mo	4	1304

Do Clocktower Ventures and Y Combinator invest together?: Yes — Clocktower Ventures and Y Combinator appear together in 18 tracked portfolio companies, including Affinity, Arc, Benepass, Casca, Concourse.
How do Clocktower Ventures and Y Combinator compare on check size?: Clocktower Ventures typically writes checks of $100K – $20M, while Y Combinator writes $500K.