Founder mentor signet
Jacob Key

Jacob Key

Co-founder & General Partner at Luminar Ventures.

A former founder and angel investor backing Nordic companies from pre-seed and seed.

Jacob Key is Co-founder and General Partner at Luminar Ventures, backing seed and pre-seed technology startups across the Nordic region.

Before starting Luminar, he was a serial entrepreneur and made close to 20 early-stage angel investments. His portfolio included Challengermode, Unacast, Audiodo, Blykalla and FirstVet; the companies Sportamore, Vera&John and Vetzoo later became exits.

As a mentor, he takes an active, long-term stance: working closely with early founders on product validation, initial governance, financing strategy and international market expansion.

Where Jacob can help

  • Nordics
  • pre-seed
  • seed
  • AI
  • deep tech

Operating and investing experience

A selection of companies and roles connected to Jacob Key.

Ventures

Luminar Ventures

Co-founder & General Partner

Angel investing

Made close to 20 early-stage investments before Luminar, including Challengermode, Unacast, Audiodo, Blykalla and FirstVet.

Highlights

  1. Co-founded Luminar Ventures to back pre-seed and seed-stage Nordic technology companies.
  2. Made close to 20 early-stage angel investments before Luminar.
  3. His prior angel portfolio included three company exits: Sportamore, Vera&John and Vetzoo.

Questionsfounders ask aboutJacob Key

Where can Jacob help founders?

Jacob advises founders on early product-market fit, structuring pre-seed and seed financing, forming initial advisory boards, and internationalising from the Nordics.

Which company-building situations are most relevant to Jacob’s experience?

He is especially relevant for early-stage European and Nordic software and deep tech teams navigating the initial leap from concept to institutional funding.

What perspective does Jacob bring as a mentor?

He brings the perspective of a founder turned venture capital general partner who values transparent, long-term alignment across early company building.

The best mentors spot the best founders early.

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