Swell Partners

Emerging manager

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

Website: https://swell.vc
HQ: NY

Swell Partners is a New York-based pre-seed and seed fund investing in AI for critical infrastructure. Its portfolio includes Parametric, which is building robots for warehouse operations, starting with box assembly and fulfillment. Other companies include NanduX, which combines muon sensors with AI to help locate copper and guide drilling decisions, Onava, which connects protein design with laboratory tests of biological function, and Crisp, which connects and standardizes retail data for inventory and replenishment.

New fund likely raising soon

The firm's newest fund is 4 to 7 years past its first sale and no newer Form D has been filed.

01 · Says / Does

Tag	Says	Does
Stages	Pre-seed, Seed	Not enough dated deals
Sectors	Enterprise SaaS, Biotech, Energy, Robotics, Aerospace and defense, Manufacturing	Not enough dated deals
Regions	NY	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
Swell Partners Fund II, L.P. Swell Partners is a pre-seed and seed investor backing founders who use AI to rebuild critical infrastructure. Focus areas include space and defense, biology, industrial systems, and enterprise infrastructure, with software that runs consequential operations and excludes consumer apps and undifferentiated SaaS. Inferred from the firm's website	2022	$2.45M to $9.99M (Form D)	Late investment period

03 · People across funds

James Ralston III, Manager of the General Partner of the Issuer
Swell Partners Fund II, L.P. (Named on Form D)
Mrityunjay Patil, Manager of the General Partner of the Issuer
Swell Partners Fund II, L.P. (Named on Form D)

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