Joseph Jacks is the Founder and General Partner of OSS Capital, where he has directed seed-stage investments since 2018. He previously contributed to the CNCF through his work with Kismatic.
What Joseph can write
OSS Capital L.P. writes $500K to $10M checks, larger than 71% of firms in the atlas.
Bars: how many firms report each check band. Highlighted: OSS Capital L.P..Career
- Kismatic2014
- OSS Capital · Founder and General Partner2018-
- Kismatic2014
- OSS Capital L.P. · Founder & General PartnerNow
Companies founded
Focus
Partners like Joseph
At firms with a similar stage, sector and check size.
Alert me when OSS Capital L.P. is active
One email when Joseph's firm raises a fund, adds a partner or shows new activity.
Send Mode VC your deck
Raising a pre-seed or seed round? We write $1M to $5M first checks and help founders with distribution. A partner reads every deck.
Send your deckQuestions
Who is Joseph Jacks?
Joseph Jacks is the Founder and General Partner of OSS Capital, where he has directed seed-stage investments since 2018. He previously contributed to the CNCF through his work with Kismatic.
How much does Joseph Jacks invest?
Joseph Jacks invests through OSS Capital L.P., which writes checks of $500K to $10M at pre-seed, seed.
How do I pitch Joseph Jacks?
Email [email protected], the firm's inbox for founders, and name Joseph in the subject. A warm intro from a founder OSS Capital L.P. backed works better.
What did Joseph Jacks do before OSS Capital L.P.?
Kismatic; Founder and General Partner at OSS Capital; Kismatic.
Last updated 2026-10-15. Is this you? Ask for a correction.