Identity
- Fund name
- TDK Ventures
- Full name
- TDK Ventures, Inc. Wholly owned corporate venture arm of TDK Corporation (Tokyo: 6762).
- Type
- Corporate venture capital, deep tech and hard tech, priced early stage equity.
- Track
- Strategic corporate venture. Thesis fit strong, structure fit weak.
- Round
- Round 1
- Fund size and AUM
- About 500 million dollars across four funds. David Delfassy sits on Fund EX1 (energy transition, 150 million dollars, multi LP anchored by ATL). Fund 3 (150 million dollars, 2025) has a named future of data centers pillar.
- HQ
- San Jose CA
- Offices
- Boston, London, Tokyo, Bengaluru, and a China presence.
Money
- Typical ticket
- 100 thousand to 5 million dollars, sweet spot about 1.5 million. Seed to Series B. Leads or co leads in hard tech.
- Stage focus
- Seed to Series B.
- Lead or follow
- Leads or co leads in hard tech.
- Reserves
- Reserves for follow ons and helps raise the next round.
Structure appetite what they actually write
EquitySAFEConvertibleVenture debtProject finance
Thesis fit
- Sectors
- Component and materials technology for energy, power and data center systems.
- Pattern
- King of the Hill component and materials technology bets, not infrastructure roll ups. Seed to Series B.
Track record and key investments
A cluster directly adjacent to MicroLink: NovoLINC (data center thermal interface materials for liquid cooling), Amperesand (solid state transformers for data center power), Aston Power (rapid deploy private power grids for AI data centers, Delfassy quoted), C2i Semiconductors (grid to core power delivery), Peak Energy (sodium ion storage for AI data centers) and Rodatherm (closed loop geothermal, Delfassy on the board). Also Groq (AI inference, pending Nvidia asset deal) and Ascend Elements. 54 portfolio companies and four unicorns.
Exits
GenCell IPO (Tel Aviv 2020). SLD Laser to Kyocera. Origin to Stratasys. Groq pending Nvidia asset deal reported at about 20 billion dollars. Fund returns not public.
Transaction types
Priced equity, up to 5 million dollars, Seed to Series B, leads or co leads. Equity investor only, no debt, no project finance.
Stakeholders who sits behind the fund
David DelfassyGatekeeper and existing contact
Investment Director, London
Leads Fund EX1 energy and decarbonization, the right door. Board director at Rodatherm.
Tina TosukhowongChampion
Investment Director
Led NovoLINC data center cooling. Second most relevant IC.
Nicolas SauvageDecision maker
Founder and President
Delegates deal conviction to the team.
Sam HillChampion
Sent a Zoom meeting booking on 15 Jul 2026.
Process
- How they like to work
- Priced equity only, no venture debt, no project finance. They write about project finance as other capital that founders should stack, not something they provide. Strategic strings: TDK Goodness, access to TDK R and D, manufacturing and supply chain, framed as an equal win with no public evidence of mandatory supply or exclusivity terms.
- Diligence
- Rigorous, technical and patient. A Diverse Advocate session where the team lists only reasons not to invest. A small IC of about 3 people reaches a decision on demand.
Fit for MicroLink
Strong thesis fit for the operating company equity: future of data centers is a named pillar and the Delfassy EX1 fund covers waste heat and efficiency. Poor structure fit for the 300MW Ohio project finance, which is out of mandate. Rodatherm is the template: venture equity in the tech company, megawatts financed separately. Frame the raise as company technology equity and separate the Ohio project finance explicitly.
Contractual posture
Board seat or observer when they lead. Pro rata, liquidation preference, ROFR and IP terms not public. High founder NPS and no reports of onerous terms.
Relationship
- Intro source
- David Delfassy replied by redirecting to the online application portal, a neutral default signal.
- Current stage
- Meeting booked
- Next action
- Submit the portal as a checkbox, then pursue a warm intro to Delfassy or Tosukhowong via an Aston Power, Rodatherm or NovoLINC founder or a shared co investor, with a technology forward framing.
- Note
- Thesis fit strong, structure fit weak. Reach via warm intro, not the portal.
Interaction log
10 Jul
David Delfassy replied. Redirected to the online application portal, a neutral default signal.
11 Jul
Deep research profile completed and loaded.
15 Jul
Sam Hill sent a Zoom meeting booking.
16 Jul
Moved to Target. by Nick Searra
16 Jul
Moved to Meeting booked. by Nick Searra