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Harris & Harris Group
AddedFeb 15, 2024
UpdatedJun 28, 2026
Harris & Harris Group

Harris & Harris Group

Operating

Harris and Harris Group, Inc.: Transforming disruptive research into innovative businesses.

Location
New York City, NY, US
Founded
1988
Firm
Compare
Portfolio
Employees
Website

Harris & Harris Group, Inc. focuses on transforming disruptive research into innovative businesses. The firm typically invests in Series A and Series B rounds, supporting companies that are at the forefront of technological and scientific advancements. Their investment size varies depending on the stage and potential of the business, with notable investments in sectors such as biotechnology and nanotechnology.

Notable portfolio companies include Mersana Therapeutics, NanoOpto, Petra Pharma, and Senova Systems. Harris & Harris Group is known for its strategic investment philosophy, emphasizing the commercialization of groundbreaking research. The firm provides unique value-add services to its portfolio companies, leveraging deep industry expertise and a robust network to foster growth and innovation.

Harris & Harris Group - Portfolio Snapshot

Portfolio activity breakdown across disclosed investments and stages

Total Investments4
Current Portfolio Count2
Total Portfolio Exits1

Top Investment Stages

Series A2 (50.0%)
Series B1 (25.0%)
Series Unknown1 (25.0%)

Stage Mix

Series A 50%Series B 25%Series Unknown 25%

Concentration shown as share of disclosed investments by stage.

Recent Investments

Petra Pharma logo

Petra Pharma

Mersana Therapeutics logo

Mersana Therapeutics

Senova Systems logo

Senova Systems

NanoOpto logo

NanoOpto

Harris & Harris Group - Classification

Also Known As
  • Harris & Harris Group, Inc.
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
  • 6720Investment Offices
  • 6722Management Investment Offices, Open-end
ISIC
  • 6430Trusts, funds and similar financial entities
Show 5 more industry codes
NAICS
  • 525900Other Investment Pools and Funds
  • 525990Other Financial Vehicles
  • 525000Funds, Trusts, and Other Financial Vehicles
SIC
  • 6726Unit Investment Trusts, Face-amount Certificate Offices
  • 6000Depository Institutions