Fund profile / Japan

Marunouchi Innovation Partners

Geography: Japan
Stage: Series A
Fund size: $744M
Focus: AI/ML and Climate & Sustainability
Signals: Published

N°01 / About

About Marunouchi Innovation Partners

Marunouchi Innovation Partners is a venture capital firm based in Japan, focusing on Series A stage investments. The fund actively supports founders building innovative solutions in AI/ML, Climate & Sustainability, providing strategic guidance and capital to help startups scale.

N°02 / Thesis

Investment Focus

Location / RegionJapan

Funding StageSeries A

Industry Focus

AI/ML

Climate & Sustainability

Investor Signals Profile

active

Sweet Spot

Growth-stage climate tech founder scaling globally

climate tech

carbon neutral

growth capital

global markets

deep tech

Bullish Signals

Mitsubishi Corp as main sponsorexternal

London branch opening 2026external

Invested Fervo Energy, Fabric8Labs, Ubicquiaexternal

Active follow-on investments ongoingexternal

3-shareholder JV — diversified backingwebsite

Wide climate tech scope — no narrow nichewebsite

Marunouchi Climate Tech Growth Fund activewebsite

ESG policy formally in placewebsite

Recent 2025 follow-on in Fervo Energywebsite

Recent 2025 investment in Fabric8Labswebsite

2026 London expansion confirms global scale-upwebsite

Ubicquia geospatial infra investment Feb 2026website

Emerald AI investment Sept 2026 — AI orchestrationwebsite

Actively deploying capital across portfoliowebsite

Mission: Japan to world carbon-neutral 2050website

Contrarian Signals

Corporate JV — strategic agenda may applyexternal

Japan-HQ, global reach still emergingexternal

Founder Do's

Have cutting-edge climate tech

Ready to scale commercially

Seeking growth-stage capital

Open to global market access

Align with carbon-neutral 2050

Founder Don'ts

Early pre-revenue stage

Non-climate tech sectors

No global scaling ambition

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Facts

Fund Overview

Fund Size$744M

Saves0

Website

People

Key People

Chiro Miyoshi

N°04 / See also

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