Clean Planet Valuation, Funding & Investors

Clean Planet is valued at $1.2B as of June 2019.

Last Clean Planet valuation

$1.2B

Strategic investment · Jun 2019

Last Clean Planet funding round

Strategic investment

Amount undisclosed · Mar 2026

Cumulative funding Clean Planet raised

$9M

across 3 funding rounds

Key investors in Clean Planet

Clean Planet Overview

About Clean Planet

Clean Planet is a Japanese research firm developing lattice confinement fusion technology for clean heat generation without radioactive waste. Its scientists conduct experiments on gas-phase and metal-hydride systems to achieve transmutation and excess heat production. Based in Tokyo and founded on September 1, 2012, the company collaborates with universities and operates test reactors in Hokkaido. Clean Planet publishes results from quantum mechanics-based models and partners with Mitsubishi Heavy Industries for commercialization.


Founded

2012

HQ

JapanTokyo

Status

Privately held

Customer focus

B2B

Revenue model

Services

Valuation

$1.2B (Jun 2019)

Clean Planet Valuation

Clean Planet is currently valued at $1.2B, based on its strategic investment round in June 2019.

The $5M round was led by Miura.

Clean Planet valuation by funding round

Clean Planet valuation by funding round
DateStageValuation
Jun 2019Strategic investment$1.2B

Clean Planet Funding History

Clean Planet has raised a total of $9M across 3 funding rounds.

Clean Planet's first fundraising round was a $5M strategic investment round in January 2019. The most recent completed round was a strategic investment round in March 2026.

Clean Planet funding rounds

Clean Planet funding rounds
DateStageInvestorsRaisedValuationDeal Summary
Mar 2026Strategic investmentSankei Building (lead)---
Jun 2019Strategic investmentMiura (lead)$5M$1.2BClean Planet Inc. develops clean energy technologies, focusing on new hydrogen energy as a next-generation CO2-free source nearly reaching practical use. Miura Co., Ltd., Japan's leading boiler manufacturer, invested in Clean Planet through a third-party allotment of newly issued shares on May 15, 2019, to collaborate on implementing these technologies globally for sustainable social infrastructure. Clean Planet, established in September 2012 with head office in Tokyo, had capital of ¥704.1 million plus ¥598.6 million capital surplus and 5 employees as of May 2019.
Jan 2019Strategic investmentMitsubishi Estate (lead)$5M-Clean Planet Inc. is a Tokyo-based venture company developing "New Hydrogen Energy" technology with the goal of commercializing safe, low-cost, and environmentally-friendly hydrogen energy solutions. On January 25, 2019, Mitsubishi Estate Co., Ltd. subscribed to newly issued shares of Clean Planet through a third-party allotment as part of a capital alliance to advance the commercialization of the technology. Mitsubishi Estate, a major Tokyo-based real estate and urban development company, made this investment to support Clean Planet's R&D efforts, which were being conducted in collaboration with Tohoku University. The investment aligned with Mitsubishi Estate's broader ESG and sustainable development goals, including efforts to reduce CO2 emissions and develop low-carbon cities through clean energy integration in urban development projects.

Who has invested in Clean Planet?

3 investors have backed Clean Planet across its funding rounds, including Mitsubishi Estate, Sankei Building and Miura.

Lead investors include Sankei Building, Miura and Mitsubishi Estate.


Clean Planet Investors

Investors in Clean Planet by funding rounds participated
InvestorHQRoundsRoleFirst check
Mitsubishi EstateJapanJapan1LeadJan 2019

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Clean Planet Competitors

Clean Planet competitors include listed companies like Hydrograph Clean Power and Shoals, and private ones like Electra, Climeworks, Radiant and Amogy.

Public and private companies comparable to Clean Planet
CompanyHQStatusRevenueEBITDAValuationRevenue Multiple
ElectraUnited StatesBoulder, COPrivate--$1.2B-
ClimeworksSwitzerlandZurichPrivate--$1.1B-
RadiantUnited StatesLos Angeles, CAPrivate--$1.8B-
AmogyUnited StatesNew York City, NYPrivate--$700M-
Hydrograph Clean PowerCanadaCanadaPublicly listed$43K($8M)$1.4B-
ShoalsUnited StatesUnited StatesPublicly listed$475M$72M$1.3B2.6x

Clean Planet Public Comps

Clean Planet is still privately-owned, but its public comps include Naturenergie, Advantage Energy, JoPetrol, Birchcliff Energy, TotalEnergies EP Gabon, Copperbelt Energy, Transcorp Power, Shoals, Total Energies Marketing Maroc and Banpu Power.

Last FYEV/RevenueEV/EBITDA
RevenueEBITDALast FYLTM2027ELast FYLTM2027E
Naturenergie$1.8B$325M0.7x-3.8x5.0x
Advantage Energy$506M$257M3.6x3.2x7.1x5.6x
JoPetrol$2B$225M1.2x1.0x11.2x12.9x
Birchcliff Energy$521M$278M3.2x2.9x5.9x4.8x
TotalEnergies EP Gabon$418M$210M1.5x-2.9x-
Copperbelt Energy------
Transcorp Power$299M$98M3.8x-11.6x-
Shoals$475M$72M3.2x2.6x20.9x12.8x

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Common questions about Clean Planet

When was Clean Planet founded?Clean Planet was founded in 2012.
Where is Clean Planet headquartered?Clean Planet is headquartered in Tokyo, Japan.
Is Clean Planet publicly listed?No, Clean Planet is a private, VC-backed company.
What is Clean Planet's valuation?Clean Planet was last valued at $1.2B in its strategic investment round in June 2019.
How much funding has Clean Planet raised?Clean Planet has raised $9M across 3 funding rounds.
What was Clean Planet's last funding round?Clean Planet's last funding round was a strategic investment round in March 2026, led by Sankei Building.
Who are Clean Planet's investors?Clean Planet's investors include Mitsubishi Estate, Miura and Sankei Building.
Which companies are comparable to Clean Planet?Companies comparable to Clean Planet include Electra, Climeworks, Radiant, Amogy, Hydrograph Clean Power and Shoals.

See companies similar to Clean Planet

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