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Rationalwave
AddedFeb 15, 2024
UpdatedJun 28, 2026
Rationalwave

Rationalwave

Acquired

NY-based Rationalwave Capital Partners provides financial services and invests in tech companies since 2003.

Location
Scarsdale, NY, US
Founded
2003
Firm
Compare
Portfolio
Employees
Website

Rationalwave Capital Partners, a New York-based venture capital firm, focuses on seed and Series A investments in technology companies. The firm targets visionary teams with novel approaches to solving problems in large markets, emphasizing companies with a technological edge. Rationalwave's investment strategy includes both private and public equities, with typical investment rounds at the seed and pre-seed stages.

Founded in 2003 by Mark Rosenblatt, Rationalwave's portfolio includes notable companies such as Xometry, Insurify, and StatSocial. The firm's investment philosophy centers on long-term returns from long-term investments, supporting dedicated and experienced teams. Rationalwave's approach combines financial services expertise with a keen focus on technology-driven solutions across various sectors.

Rationalwave - Portfolio Snapshot

Portfolio activity breakdown across disclosed investments and stages

Total Investments5
Current Portfolio Count5
Total Portfolio Exits0

Top Investment Stages

Seed4 (80.0%)
Pre-Seed1 (20.0%)

Stage Mix

Seed 80%Pre-Seed 20%

Concentration shown as share of disclosed investments by stage.

Recent Investments

Brij logo

Brij

Aromyx logo

Aromyx

Insurify logo

Insurify

Xometry logo

Xometry

StatSocial logo

StatSocial

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Rationalwave - Classification

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
Show 5 more industry codes
NAICS
  • 525000Funds, Trusts, and Other Financial Vehicles
  • 523910Miscellaneous Intermediation
SIC
  • 6000Depository Institutions
  • 6790Miscellaneous Investing
  • 6799Investors, Not Elsewhere Classified