/Investor DB

Nucleation Capital — Full Portfolio

22 tracked investments · listed companies and verified rows first

Deep Isolationdeepisolation.comin𝕏OTC: DBHLNov 2020

Deep Isolation Nuclear, Inc. is a company whose stock trades on the OTCQB under the ticker DBHL.

CleantechClimate TechDeep TechEnergyBerkeley, US

Richard Muller(Executive Officer, Director)inElizabeth Muller(Executive Officer, Director)inJesse Sloane(Executive Officer)inSophie McCallum(Executive Officer)inRod Baltzer(Director, President and Chief Executive Officer)inJoseph Nelson(Chief Financial Officer and Treasurer)in

Aalo Atomicsaalo.comin𝕏

Aalo develops advanced nuclear reactor technology aimed at producing electricity at under 3 cents per kilowatt-hour.

Climate TechDeep TechEnergyHardware

Matt(Co-founder)inYasir(Co-founder)inMatt Loszak(Founder)inYasir Arafat(Founder)

Co-investorsAkkaAlumni VenturesAtaraxia CapitalBanca Investis — Family OfficeBasecamp FundBlack Flag+35 more

angellistangellist.comin𝕏

AngelList's investor management platform provides tools for venture capital and private equity firms to streamline LP interactions, automate fund operations, and deliver reporting and portfolio updates through a branded digital experience.

Enterprise SoftwareFintechSaaS

Avlok Kohli(CEO)inBabak Nivi(Founder)Naval Ravikant(Founder)

Co-investorsAccelerator VenturesAccompliceAgman PartnersAltra VentureAngel Collective Opportunity FundAtacama Ventures+54 more

Apollo Atomics, Inc.apolloatomics.comin𝕏Seed

Apollo Atomics develops compact nuclear power systems designed for rapid deployment.

Advanced ManufacturingClimate TechDeep TechEnergyBoston, US

Assil Halimi(Founder)inDrew Walker(Founder)in

Co-investorsAlumni VenturesAngel Operator Partners (aop)Cliff CapitalFifty YearsKima VenturesKoru Capital+42 more

Atomic Insightsatomicinsights.com𝕏

Atomic Insights is a publication and podcast (The Atomic Show) covering nuclear energy technology, reactor development, and nuclear investment topics.

Climate TechEnergyMedia & Entertainment

Rod Adams(Founder & Author)

Co-investorsAquiline Technology Growth

Blue Energyblueenergy.coin𝕏Apr 2026 · $45M

Blue Energy develops scalable small modular reactor (SMR) technology to deliver nuclear power at scale.

CleantechClimate TechDeep TechEnergyHardwareWashington, US

JakeTomJacob Jurewicz(Executive Officer, Director)Thomas O'Neill(Executive Officer, Director)Jake Jurewicz(CEO & Co-founder)

BoardOrin Hoffman(Director)

Co-investorsAt One VenturesAngular VenturesNeutron Power VenturesTamarack GlobalThe Engine VenturesFounders Fund+4 more

Blykallablykalla.comin

A company focused on developing clean, firm baseload energy solutions to meet growing electricity demand from electrification and artificial intelligence workloads.

CleantechDeep TechEnergyStockholm, SE

Jacob Stedmanin

Co-investors92 CapitalArmada Investment AGAugust OneCollaborative FundEarth Venture CapitalFarvatn Venture+5 more

Copenhagen Atomicscopenhagenatomics.comin

Copenhagen Atomics is a Danish nuclear energy company developing thorium molten salt reactors designed for mass manufacturing, sold to nuclear power plant owners as fixed-price 100 MWth reactor units with fuel supply and maintenance.

CleantechDeep TechEnergyKastrup, DK

Thomas Jam Pedersen(Co-founder & CEO)in

Co-investorsNeutron Power VenturesATP

Core Powercorepower.energyin𝕏

CORE POWER develops nuclear energy solutions designed for deployment in hard-to-decarbonize industries that require reliable, continuous power.

CleantechClimate TechDeep TechEnergyLondon, GB

Mikal Bøe(Founder)in

Co-investorsMOL SwitchMilltrust International Group

Deployable Energydeployable.energyin𝕏

Deployable Energy designs and manufactures nuclear microreactors intended for scalable, rapid deployment across diverse applications including remote operations and maritime platforms.

Advanced ManufacturingCleantechDeep TechEnergyHouston, US

Bobby Gallagher(Chief Executive Officer and Founder)in

Focused Energyfocused-energy.coin𝕏Jun 2021

Focused Energy develops laser-driven fusion technology to commercialize fusion power generation at scale.

CleantechClimate TechDeep TechEnergyHardwareDarmstadt, DE

Thomas Forner(Co-Founder & CEO)inMarkus Roth(Co-Founder & CSO)inTodd Ditmire(Executive Officer)inDebbie Calahan(Chief Strategy Officer)Suzanne Wuersch(Executive Officer)Anika Stein(Executive Officer)

Co-investorsA-Rod CorpDraper AssociatesPrime Movers LabEuropean Innovation Council Fund

Nuclearnnuclearn.aiin𝕏

Nuclearn builds nuclear-grade AI software that automates engineering, maintenance, and compliance workflows for nuclear operators.

AI & Machine LearningEnergyEnterprise SoftwarePhoenix, US

Jerrold Vincent(Co-Founder & CFO)inBradley Fox(Co-Founder & CEO)inPhil Zeringue(Chief Revenue Officer)inLorenzo Slay(VP of Product)inJeff Karau(VP of Engineering)in

BoardErnst Sack(Director)in

Co-investorsAZ-VCBlue Bear Capital PartnersCopper Sky CapitalSJF Ventures

Path Powerpath-power.comSep 2026

Reimagining underground power transmission through self-propelled cable systems.

Berkeley, US

Zac Judkins(Founder)inZachary Judkins(Executive Officer, Director)

BoardJack Peurach(Director)

Co-investorsAmerica's Frontier FundBlindspot Ventures Management CoRoadrunner VenturesZero Index

Planetaryplanetarytech.comin

Planetary Technologies develops ocean-based carbon removal technology to address climate change.

CleantechClimate TechDeep TechNova Scotia, CA

Dr. Greg Rau(Senior Scientist & Co-Founder)Mike Kelland(Chief Executive Officer, Co-Founder & Board Member)in

Co-investorsAmplify CapitalAstanor VenturesMaRS Investment Accelerator Fund (IAF)XAngeGreen Generation Fund

Radiantradiantnuclear.comin𝕏

Radiant Nuclear develops Kaleidos, a portable nuclear microreactor designed to replace diesel generators for remote locations and provide resilient backup power to hospitals, datacenters, and military installations.

Deep TechEnergyHardwareEl Segundo, US

Doug Bernauer(Founder)inBob Urberger(Founder)in

Co-investorsAcequia Capital (AceCap)Align VenturesAndreessen HorowitzBeyond CapitalCantos VenturesCarbon+26 more

Shinefusionshinefusion.comin𝕏

Shine Fusion develops nuclear technology solutions aimed at building a more sustainable world.

CleantechDeep TechEnergyMedical DevicesMadison, US

Greg Piefer(Founder and CEO)in

Co-investorsAlumni VenturesKoch Disruptive TechnologiesNV NOM

Statcounterstatcounter.comin𝕏

Statcounter provides website analytics and visitor tracking software that displays traffic data, user behavior, and engagement metrics in a simple interface.

AdTechData & InfrastructureMarketing TechSaaS

Aodhán Cullen(Founder and CEO)

Co-investorsGabriel Venture PartnersHomegrown CapitalHuangpu River CapitalIaso VenturesKumpulan Modal PerdanaNventure+2 more

Syntholene, newsyntholene.comin𝕏

The page is a professional biography of executive Jens Thordarson rather than a description of a product or company named Syntholene.

Twelvetwelve.coin𝕏Apr 2015

Twelve transforms CO2 into chemicals, fuels, and materials through carbon transformation technology.

Advanced ManufacturingCleantechClimate TechHealthtechNew MaterialsMoses Lake, US

Nicholas Flanders(Founder)inEtosha Cave(Founder)inKendra Kuhl(Founder)inAndrew Cleeland(Executive Officer, Director)in

BoardMarc-Henri Galletti(Director)Nimesh Shah(Director)

Co-investorsBreakout VenturesDCVC (Data Collective)Dolby Family VenturesFifth WallAdvantage Partners Inc.Aera VC+36 more

Ultra Safe Nuclearusnc.cominJan 2020

Seattle, Washington-based developer of the TRISO-fueled Micro Modular Reactor and micro-space reactors.

EnergySeattle, US

Francesco Venneri(Executive Officer, Director)inGiulia DeLorenzi-Venneri(Executive Officer)Eva Zhang(Director)Lorenzo Venneri(Director)Ritesh Budree(Executive Officer)

Co-investorsAndreessen HorowitzChevron Technology VenturesCrucible CapitalDecisive PointFundomoStepstone Group+1 more

Zeno Power Systemszenopower.comin𝕏Jan 2025

Zeno develops nuclear batteries that convert heat from decaying radioisotopes into electricity for extended-duration applications in space and deep-sea environments where conventional power sources are inadequate.

CleantechDeep TechDefense TechEnergyHardwareSpace TechArlington, US

Jonathan Segal(Founder)inTyler Bernstein(Founder)inJake Matthews(Founder)

BoardArjun Sethi(Director)inSam Rohr(Director)John M. Richardson(Director)

Co-investors7percent VenturesAIN VenturesAlumni VenturesBalerion Space VenturesBeyond Earth VenturesDCVC (Data Collective)+17 more

Other

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

SHINE Technologies

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.