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VC firm

Thornapple River Capital

Kingmaker TierBased on the data VC Catalog holds.

Kingmaker Tier: 86 out of 100

  • AI models & AI infrastructure
  • Biotech & therapeutics
  • Care delivery & digital health
  • Health IT
  • Medical devices & diagnostics
  • Mental health & wellness
  • Mobility, autonomy & EVs
  • Women's & family health
  • Seed
  • AI native
  • Deeptech
  • VC
  • Venture studio
  • B2B
Investor type
VC
Investing status
Activeas of 2026-09-20Source (opens in a new tab)
Headquarters
Grand Rapids, MI, United States
Founded
2015
Assets under management
$79.4MForm ADV private fund GAV, as of 2026-03-27Source (opens in a new tab)
Funds
5
Legal name
Thornapple River Capital, LLC
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Record updated 29 September 2026

About

Thornapple River Capital is a closely held investment partnership that invests in and supports teams across healthcare, biotech, medical devices, AIML, deeptech, alt. transport, and more

Investment approach

Thesis
Building and investing in early-stage companies driving tomorrowSource (opens in a new tab)
Investing status notes
a closely held investment partnership actively creating and investing in early-stage companies

Funds

THORNAPPLE RIVER CAPITAL - VENTURE FUND LLC
Main fund
STEELE PARTNERS LLC
Main fund
STEELE OZ PREFERRED LLC
Main fund
KANTSTRAAT LLC
Main fund
TRC-VENTURE FUND II, LLC
Main fund

SEC registration

Registered adviser
THORNAPPLE RIVER CAPITAL LLC
SEC file number
802-120000
Registration
Exempt reporting adviser
Regulatory AUM
$79.4Mas of 2026-03-27
Private funds reported
5
Principal office
GRAND RAPIDS, MI, United States
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