/Investor DB

Marunouchi Innovation Partners — Full Portfolio

13 tracked investments · listed companies and verified rows first

Fervo Energyfervoenergy.cominNASDAQ: FRVOMar 2024 · $244M

Fervo Energy develops next-generation geothermal technology using advanced drilling and sensing techniques to unlock carbon-free, 24/7 power generation in previously uneconomic locations.

CleantechClimate TechEnergyHouston, US

Tim Latimer(Founder)inJack Norbeck(Founder)in

BoardDavid Thomas Danielson(Director)inNicholas Walrod(Director)inIon Yadigaroglu(Director)

Co-investorsB Capital GroupB4 CapitalBaruch Future VenturesBeast VenturesBreakthrough Energy VenturesCarbon+16 more

Fabric8Labsfabric8labs.cominNov 2025 · $50M✓ verified

Fabric8Labs develops Electrochemical Additive Manufacturing (ECAM), a room-temperature metal 3D printing technology that produces dense, high-purity metal parts with micron-scale resolution and no post-processing.

Advanced ManufacturingDeep TechHardwareSemiconductorsSan Diego, US

Jeffrey Herman(Executive Officer, Director)David Pain(Founder)inDavid Wirth(Founder)Jeff Herman(Founder)

BoardCyril Vancura(Director)inGreg Papadopoulos(Director)in

Co-investorsIntel CapitalLam CapitalSE VenturesTDK VenturesEricsson VenturesAsimov Ventures+7 more

Amogyamogy.coin𝕏

Amogy develops patented ammonia cracking technology that converts ammonia into electric power for hydrogen fuel cells and engines, targeting decarbonization of heavy industries including transportation and maritime.

CleantechClimate TechDeep TechEnergyHardwareHealthtechSan Francisco, US

Seonghoon Woo(Founder)inHyunho Kim(Founder)inJongwon Choi(Founder)inYoung Suk Jo(Founder)

BoardAndrew Hinkly(Director)in

Co-investorsAF WPartnersAP VenturesBonAngels Venture PartnersCollaborative FundCongruent VenturesDCVC (Data Collective)+7 more

Boston Metalbostonmetal.comin

Boston Metal develops Molten Oxide Electrolysis (MOE), an electrified process for producing steel and other metals from a range of oxide feedstocks without direct emissions.

Advanced ManufacturingCleantechClimate TechNew MaterialsWoburn, US

Donald Sadoway(Founder)inAntoine Allanore(Founder)Tadeu Carneiro(CEO)inJames Yurko(Founder)

Co-investorsBreakthrough Energy VenturesClimate InvestmentPrelude VenturesInternational Finance CorporationBMW i VenturesEnergy Impact Partners+8 more

Emerald AIemeraldai.coin𝕏Sep 2026 · $150M

Emerald AI develops software to enable power flexibility in data centers by orchestrating power demand in response to grid needs.

AI & Machine LearningCloud ComputingData & InfrastructureDeep TechEnergyBoston, US

Varun Sivaram(Founder)inAyse Coskun(Chief Scientist)in

BoardRob Toews(Director)inMarkus Specks(Director)in

Co-investorsCarbonCongruent VenturesDCVC (Data Collective)Energy Impact PartnersIn-Q-TelNeotribe Ventures+15 more

GridPointgridpoint.comin𝕏Mar 2025 · $45M

GridPoint develops building energy management and optimization technology for commercial buildings, aimed at reducing energy consumption, decarbonizing facilities, and supporting grid modernization.

CleantechClimate TechEnergyIoTSaaSArlington, US

Peter Corsell(Founder & Chairman (former CEO))Derek Booth(Chief Executive Officer)inKrupa Amlani(Fractional Chief Financial Officer)Tom Nelson(General Counsel & Senior Vice President)inMark Danzenbaker(Former CEO (2016-2025))inKate Gardella(SVP of Enterprise Growth & Success)

Co-investorsI Squared CapitalKensington Capital Partners LimitedNew Enterprise Associates (NEA)Samos InvestmentsFortress Investment GroupGoldman Sachs+1 more

HIVEDhived.spaceinJul 2025

HIVED is the UK's first parcel delivery company designed for e-commerce, operating with a focus on sustainable and technology-enabled delivery methods.

CleantechE-commerceLogistics & Supply ChainUK, GB

Murvah Iqbal(Co-founder)inMathias Krieger(Co-founder)in

Co-investorsEka VenturesEverywhere VenturesFuture Back VenturesGlobal BrainMaersk GrowthNordicNinja+5 more

Infinitumgoinfinitum.com

Infinitum designs and manufactures energy-efficient electric motor systems built around a printed circuit board (PCB) stator, aimed at reducing electricity consumption in HVAC, data centers, commercial/industrial, and mobility applications.

CleantechData & InfrastructureEnergyEnterprise SoftwareHardwareIoTAustin, US

Co-investorsAventurine PartnersRice Investment GroupSAIC Technologies Fund II, LLCGalvanize Climate Solutions

Infinitum Electricinfinitumelectric.cominMay 2021

Infinitum Electric develops high-efficiency electric motors optimized for data center cooling systems, delivering superior energy performance compared to conventional motors.

CleantechEnergyHardwareRound Rock, US

Bernhard Schuler(Executive Officer, Director)Bernard Schuler(Executive Officer, Director, Promoter)Bob Brown(Executive Officer)inRick Tewell(Executive Officer)in

BoardBenoit Grobon(Director)Jaime Aguirre(Director)

Co-investorsAventurine PartnersCottonwood Technology FundApplied VenturesChevron Technology VenturesEnergy Innovation Capital

Mainspring Energymainspringenergy.cominApr 2025

Mainspring Energy develops power generation systems.

Deep TechEnergyHardware

Shannon Miller(Founder)inAdam Simpson(Founder)Matt Svrcek(Founder)

BoardTom Linebarger(Chairman & Chief Executive Officer)

Co-investorsKhosla VenturesAlumni VenturesClearSkyDCVC (Data Collective)Fine Structures VenturesGeneral Catalyst+5 more

Omnidianomnidian.comin𝕏Apr 2025 · $87M

Omnidian provides post-installation care and performance protection for solar and clean energy investments, focusing on the service experience after systems are installed.

AI & Machine LearningCleantechClimate TechEnergySaaSSeattle, US

Mark Liffmann(Founder & CEO)inMark Liffman(Executive Officer, Director)Caroline Bec Cox(Executive Officer)in

BoardRick Viton(Director)inTom Groos(Director)inAbe Yokell(Director)in

Co-investorsACTIVATE CAPITAL PARTNERSAlumni VenturesB Capital GroupB4 CapitalBlue Bear Capital PartnersBridges Fund Management Ltd.+13 more

Ubicquiaubicquia.comin𝕏Feb 2026 · $106M

Ubicquia builds intelligent infrastructure products, including smart streetlighting systems with data analytics, that connect to existing utility and city assets.

CleantechEnergyGovTechHardwareIoTFort Lauderdale, US

Ian Aaron(Chief Executive Officer)inLowell Kraff(Chairman, Co-Founder)inHeather Ritchie(Executive Officer)inSantiago Serrano(Executive Officer)inKyle Brown(Executive Officer)inMansour Ghomeshi(General Counsel & Secretary of Board)in

Co-investorsClearSkyFuel Venture CapitalGMS+Hamilton Lane

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

Mainspring

Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.