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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
client focusb2btechnologyHardwaretechnologyDeep TechtechnologyNanotechsub industryEnergy Storagebusiness modelManufacturingsectorComposite MaterialssectorGraphenesectorLithium-Ion BatteriessectorBatterysectorNanomaterialssectorSustainable Development GoalssectorAdvanced MaterialssectorSolid-State Battery

Valuation & funding

3DC funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
SERIES AEquity / VC Mar 2026 $2.8M $96M Toho Acetylene
SERIES AEquity / VC Sep 2025 $19M $75M Osaka University Venture Capital · Kanagawa Science Park · Sony Innovation Fund · 77 Bank
SEEDEquity / VC Jun 2024 $2.5M $10M ANRI · Kanagawa Science Park · Mitsubishi UFJ Capital · SMBC Venture Capital
SEEDEquity / VC Jan 2024 $1.9M $7.7M Morimatsu T&S · ANRI
SEEDEquity / VC May 2022 UntroD Capital
Showing 5 recorded eventsUnlock the complete deal history →

Financials

Workforce over time

Available workforce history. Financial fields without reported data are omitted.

YearEmployees
2026 29
2025 29
2024 27
2023 25
2022 5
Company filings, research estimates and Dealroom dataOpen the full financial model →

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%
Monthly website visits43 observations · Oct 2022–Jul 2026
Hover or focus a point to see its exact monthly valueCompare with peers →

Comparisons

3DC compared with similar companies

Dealroom’s weighted taxonomy model identifies the closest operating peers. Company identity and context stay open; selected comparison metrics preview what is available in the platform.

Showing 8 of the closest matchesCompare every metric →
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.

Investors

15 investors on 3DC's cap table

Sourced from Dealroom's funding and investor records.

Seed 8 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 A 4 investors entered at this stage
Osaka University Venture Capital
77 Bank
Kyoritsu Holdings
Toho Acetylene
Other known 3 additional known investors
Dawn Capital
Mitsui Sumitomo Insurance Venture Capital
Neo Ventures

Global footprint

Where 3DC has talent and traffic

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

In the news

Latest news about 3DC

Recent press, funding announcements, and product moves mentioning 3DC — open to read from the original sources.

See all news

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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