18 West

Emerging manager

Built from this firm's Form D filings. The firm files no SEC adviser report.

Website: https://18w.co
HQ: CA

18 West is an early-stage venture firm focused on quantum technologies across the quantum stack, including computing, sensing, networking, and the hardware and software underneath. Its co-founders and managing partners are Adam Klotz and Zach Greenberg.

01 · Says / Does

Tag	Says	Does
Stages	Seed, Series A	Not enough dated deals
Sectors	Quantum	Not enough dated deals
Regions	US, Global	Not enough dated deals

Says: what the firm's funds state. Does: from 0 dated deals in the last 24 months.

02 · Fund history

Fund	Year	Size	Status
18 West Fund I, L.P. 18 West is an early-stage venture firm investing across the quantum stack, including computing, sensing, networking, and the enabling hardware and software beneath them. It backs seed to Series A+ companies. Inferred from the firm's website	approx. 2026	$50M (Form D)	Raising

03 · People across funds

Adam Klotz, Co-Founder & Managing Partner
18 West Fund I, L.P. (Named on Form D)
Zachary Greenberg, Managing Partner of the General Partner of the Issuer
18 West Fund I, L.P. (Named on Form D)
Zach Greenberg, Co-Founder & Managing Partner
18 West Fund I, L.P. (Team)

04 · Recent deals

No dated deals found yet.

05 · Latest from the firm

No news from the firm's website yet.

06 · Sources

Fund dates and sizes are from SEC Form D filings.

Last verified: Oct 28, 2026