R3 Lithium
A battery-recycling and refining company that turns recovered battery materials into lithium carbonate for battery manufacturers.
$15MSeries A
ParticipantTV
TDK Ventures
tdk-ventures.com ↗Activity from announced rounds
Activity in this selectionSeries A
TDK Ventures is TDK’s corporate venture firm, investing globally in early-stage technology businesses.
Investment approach
The firm backs science and engineering businesses and supports technical and commercial partnerships. Its portfolio spans energy and cleantech, computing and connectivity, mobility and other areas connected with TDK’s technology ecosystem.
Activity recorded by RoundOS
RoundOS records include Ultraviolette’s electric motorcycles and R3 Lithium’s battery-material recovery. Aston Power and C2i Semiconductors address power for AI infrastructure, while Eridu develops networking systems and Ethereal Exploration Guild works on reusable launch vehicles.
These examples cover financings recorded in RoundOS and do not represent the investor’s complete portfolio.
- Rounds participated in
- 4
- Confirmed lead rounds
- 0 3 roles undisclosed
- New companies
- 4 First participation on record · 0 follow-on
- Funding in participating rounds
- $220M 3 disclosed · full round size, not this investor’s share
By stage
By primary sector
By country
Rounds
4 in this selectionC2i Semiconductors
Develops software-defined voltage regulator platforms for AI and HPC data center power delivery
UndisclosedSeries A
Role not disclosedEridu
Develops purpose-built networking silicon and systems for AI data centers and hyperscalers
$200MSeries A
Role not disclosedEthereal Exploration Guild
Develops a fully reusable medium-lift launch vehicle.
$5MSeries A
Role not disclosed