3
3DC
Energy · Sendai, Japan · Founded 2022
Cutting edge carbon material company aims to promote battery evolution MoreLess
3DC is a Japanese startup that operates in the energy storage market, specifically in the development and commercialization of advanced carbon materials for batteries. The company's flagship product is Graphene MesoSponge (GMS), a three-dimensional graphene material with a unique sponge-like structure. This innovative material, developed by the Nishihara Lab at the Advanced Institute for Materials Research of Tohoku University, has the potential to revolutionize battery technology due to its balance of porosity, conductivity, corrosion resistance, and flexibility.
3DC's business model revolves around providing GMS for electrodes in various types of batteries, including lithium-ion and next-generation solid-state batteries. This positions the company to serve a wide range of clients, from battery manufacturers to industries that rely heavily on energy storage solutions, such as electric vehicles, renewable energy, and consumer electronics.
The company's commitment to innovation and sustainability is evident in its vision of contributing to a decarbonized society through the evolution of battery technology. This vision has earned 3DC recognition as one of the Hello Tomorrow Deep Tech Pioneers, and it continues to showcase its advancements at industry events such as the JAPAN Rechargeable Battery part of the ENERGY WEEK.
In summary, 3DC is a promising startup that leverages advanced carbon materials to enhance energy storage capabilities, thereby serving a critical need in today's increasingly electrified and eco-conscious world.
Keywords: 3DC, Graphene MesoSponge (GMS), energy storage, battery technology, carbon materials, decarbonization, lithium-ion batteries, solid-state batteries, Tohoku University, Nishihara Lab.
Company overview
3DC company information
The essential company record, classifications and operating signals in one place.
- Status
- Operational
- Founded
- 2022
- Headquarters
- Sendai, Japan
- Employees
- 29
- Open positions
- None listed
- Dealroom signal
- 43.0
Valuation & funding
3DC funding history
Company financing events and reported valuations.
| Deal type | Date | Amount | Valuation | Investors | Source |
|---|---|---|---|---|---|
| SERIES A✓Equity / VC | Mar 2026 | $2.8M | $96M | Toho Acetylene | ↗ |
| SERIES A✓Equity / VC | Sep 2025 | $19M | $75M | Osaka University Venture Capital · Kanagawa Science Park · Sony Innovation Fund · 77 Bank | ↗ |
| SEED✓Equity / VC | Jun 2024 | $2.5M | $10M | ANRI · Kanagawa Science Park · Mitsubishi UFJ Capital · SMBC Venture Capital | ↗ |
| SEED✓Equity / VC | Jan 2024 | $1.9M | $7.7M | Morimatsu T&S · ANRI | ↗ |
| SEEDEquity / VC | May 2022 | — | — | UntroD Capital | — |
Financials
Workforce over time
Available workforce history. Financial fields without reported data are omitted.
| Year | Employees |
|---|---|
| 2026 | 29 |
| 2025 | 29 |
| 2024 | 27 |
| 2023 | 25 |
| 2022 | 5 |
Growth signals
3DC website traffic
Latest recorded traffic for 3DC is 3.6K monthly website visits, up 20% over the last three months. 3DC's team grew 0% over the past year.
Comparisons
3DC compared with similar companies
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Talent graph
3DC's talent
Source: Dealroom Talent Intelligence.
Investors
15 investors on 3DC's cap table
Sourced from Dealroom's funding and investor records.










Global footprint
Where 3DC has talent and traffic
team presence
In the news
Latest news about 3DC
Recent press, funding announcements, and product moves mentioning 3DC — open to read from the original sources.
Market sentiment
What the market is saying about 3DC
An AI-synthesized read of the highest-engagement posts about 3DC on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
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