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3DC

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Cutting edge carbon material company aims to promote battery evolution

Sendai, JapanFounded 2022Energy
Valuation $50–100M Last recorded · 2026
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
Unlock exact values This page shows ranges. Dealroom has the exact numbers for 3DC and the history behind them.

About 3DC

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.

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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.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2022
Headquarters
Sendai, Japan
Employees
29
Open positions
None listed
Dealroom signal
43.0/100
Sub-industry
Energy Storage
Sector
Energy, Composite Materials, Graphene, Lithium-Ion Batteries, Battery, Nanomaterials, Sustainable Development Goals, Advanced Materials, Solid-State Battery
Technology
Hardware, Deep Tech, Nanotech
Business model
Manufacturing
Client focus
b2b

Funding history

5 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
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 ↗
Showing the latest 2 of 5 recorded eventsBook a demo for the full funding history →

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.

Latest monthly visits3.6K 3-month web change+20% 1-year team growth0%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

15 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Seed8 investors entered at this stage

  • UntroD Capital
  • Morimatsu T&S
  • ANRI
  • Kanagawa Science Park
  • Mitsubishi UFJ Capital
  • SMBC Venture Capital
  • Sony Innovation Fund
  • CBC

Series A4 investors entered at this stage

  • Osaka University Venture Capital
  • 77 Bank
  • Kyoritsu Holdings
  • Toho Acetylene

Other known investors3 additional known investors

  • Dawn Capital
  • Mitsui Sumitomo Insurance Venture Capital
  • Neo Ventures
Team profiled 4 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 4 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
3 countries with
team presence
🇯🇵 Japan76.5%
🇧🇷 Brazil5.9%
🇨🇦 Canada5.9%
3 countries shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about 3DC on X, ranked by likes and reposts, corporate channels excluded.

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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