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Early Stage Partners
AddedFeb 13, 2024
UpdatedJul 22, 2026
Early Stage Partners

Early Stage Partners

Operating

Early Stage Partners LP: A US-based venture capital firm investing in early-stage tech, life sciences, and cleantech companies.

Location
Cleveland, OH, US
Founded
2001
Firm
Compare
Portfolio
Employees
Website

Early Stage Partners is a venture capital firm focused on investing in early-stage technology companies in the Midwest United States. The firm targets sectors including technology, life sciences, advanced materials, instruments, control, electronics, and cleantech. Their investment strategy typically involves participating in Series A and B rounds, with occasional involvement in later stages.

Notable portfolio companies include OnShift, HistoSonics, and Juventas Therapeutics. Early Stage Partners' leadership team includes Jim Petras as Managing Director and Jonathan Murray as co-founder. The firm aims to provide capital, advice, and connections to promising startups, fostering success for entrepreneurs and investors while contributing to regional economic growth.

Early Stage Partners - Portfolio Snapshot

Portfolio activity breakdown across disclosed investments and stages

Total Investments29
Current Portfolio Count15
Total Portfolio Exits1

Top Investment Stages

Series A10 (34.5%)
Series B7 (24.1%)
Series C6 (20.7%)
Series Unknown4 (13.8%)
Series D2 (6.9%)

Stage Mix

Series A 34%Series B 24%Series C 21%Series Unknown 14%Series D 7%

Concentration shown as share of disclosed investments by stage.

Recent Investments

HistoSonics logo

HistoSonics

OnShift logo

OnShift

Cardiox logo

Cardiox

Juventas Therapeutics logo

Juventas Therapeutics

Linestream Technologies logo

Linestream Technologies

SeaStar Medical logo

SeaStar Medical

SironRX Therapeutics logo

SironRX Therapeutics

Axiomed logo

Axiomed

Prevacept Infection Control logo

Prevacept Infection Control

Intelligent Clearing Network logo

Intelligent Clearing Network

Arisdyne Systems logo

Arisdyne Systems

Ecosmart Technologies logo

Ecosmart Technologies

Imalux logo

Imalux

Blue Spark Technologies logo

Blue Spark Technologies

Five Star Technology Solutions logo

Five Star Technology Solutions

Unitask logo

Unitask

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Early Stage Partners - Classification

Also Known As
  • Early Stage Partners, L.P.
NAICS
  • 520000Finance and Insurance
  • 523000Securities, Commodity Contracts, and Other Financial Investments and Related Activities
  • 523900Other Financial Investment Activities
  • 523990All Other Financial Investment Activities
  • 523999Miscellaneous Financial Investment Activities
SIC
  • 6700Holding And Other Investment Offices
  • 6790Miscellaneous Investing
  • 6799Investors, Not Elsewhere Classified
ISIC
  • 6630Fund management activities
Show 9 more industry codes
NAICS
  • 525000Funds, Trusts, and Other Financial Vehicles
  • 523910Miscellaneous Intermediation
  • 523940Portfolio Management and Investment Advice
SIC
  • 6000Depository Institutions
  • 6200Security And Commodity Brokers, Dealers, Exchanges, And Services
  • 6280Services Allied With The Exchange Of Securities Or Commodities
  • 6720Investment Offices
  • 6282Investment Advice
  • 6722Management Investment Offices, Open-end