Fundraising FoxNucleation Capital
Venture capitalActively deployingLynnwood · Seed–Series A · 2 people tracked
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Investment thesis
Nucleation Capital invests in ventures accelerating the clean energy transition and addressing climate change, with a focus on advanced nuclear energy (fission, fusion, low energy nuclear, radioisotope thermal generators and related atomic technologies), carbon capture and management (CO2 capture, synthesis and conversion into materials), and grid enhancement (more flexible, resilient and intelligent electricity grids). The firm operates Fund I, a low-ticket evergreen venture fund on an online platform for accredited and high net worth investors, and Fund II, a traditionally structured fund in formation targeting a $250M+ raise with a first close in 2026. It also runs a syndicate network of pronuclear and climate investors who can opt into individual equity allocations.
Source: firm website, verified Sep 27, 2026.
Team · 2 people
from public directoriesWhat they invest in
from 19 of 22 portfolio companiesEnergy ×15Deep Tech ×13Cleantech ×11Climate Tech ×9Hardware ×5Advanced Manufacturing ×3Enterprise Software ×2SaaS ×2
HQs:United States×12Canada×1Germany×1Denmark×1United Kingdom×1Sweden×1
Who they back
founder profiles across 18 portfolio companiesFounding team size:solo founder×72 founders×63 founders×34+ founders×2
Where their founders studiedfrom 22 founders with education data
Harvard University ×2University of California, Berkeley ×2Vanderbilt University ×2
What their founders studiedfrom 19 founders with field-of-study data
Engineering ×9Business & Management ×4Physics ×4Computer Science ×2Mathematics & Statistics ×2
Where their founders worked beforefrom 20 founders with career history
Arizona Public Service - APS ×2Marvel Fusion ×2
Accelerator rootsportfolio companies that came through a program
7 founders hold a PhD · 2 hold an MBA (of 21 with degree data)
Investments · 22 tracked
founders shown can be your intro pathBy year:2026 · 22025 · 12021 · 12020 · 22015 · 17 dated
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 develops advanced nuclear reactor technology aimed at producing electricity at under 3 cents per kilowatt-hour.
Climate TechDeep TechEnergyHardwareAustin, US
Matt(Co-founder)inYasir(Co-founder)inYasir Arafat(CTO, President, & Cofounder)inMatt Loszak(CEO & Cofounder)in
Co-investorsAkkaAlumni VenturesAtaraxia CapitalBanca Investis — Family OfficeBasecamp FundBlack Flag+35 more
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)inAvlok K.inBabak Nivi(Founder)Naval Ravikant(Founder)
Co-investorsAccelerator VenturesAccompliceAgman PartnersAltra VentureAngel Collective Opportunity FundAtacama Ventures+55 more
Apollo Atomics develops compact nuclear power systems designed for rapid deployment.
Advanced ManufacturingClimate TechDeep TechEnergyBoston, US
Assil Halimi(CEO)inDrew Walker(COO)in
Co-investorsAlumni VenturesAngel Operator Partners (aop)Cliff CapitalFifty YearsKima VenturesKoru Capital+43 more
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 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
A company focused on developing clean, firm baseload energy solutions to meet growing electricity demand from electrification and artificial intelligence workloads.
CleantechDeep TechEnergyStockholm, SE
Co-investors92 CapitalArmada Investment AGAugust OneCollaborative FundEarth Venture CapitalFarvatn Venture+5 more
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 POWER develops nuclear energy solutions designed for deployment in hard-to-decarbonize industries that require reliable, continuous power.
CleantechClimate TechDeep TechEnergyLondon, GB
Co-investorsMOL SwitchMilltrust International Group
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 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
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
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
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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
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
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
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
The page is a professional biography of executive Jens Thordarson rather than a description of a product or company named Syntholene.
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
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 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)+19 more
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
SHINE Technologies
Exits · 1
1 IPOsDeep IsolationOTC: DBHL
Portfolio news
latest coverage across their companiesDeployable Energy · finsmes.com · Aug 10, 2026
Focused Energy · techcrunch.com · Jun 2, 2026
Apollo Atomics, Inc. · ycombinator.com · May 27, 2026
Radiant · techcrunch.com · Dec 17, 2025
Zeno Power Systems · finsmes.com · May 15, 2025
Frequently asked questions
- How many investments has Nucleation Capital made?
- Nucleation Capital has 22 tracked investments, 1 of which have exited, including 3 dated in the last 24 months.
- What stage does Nucleation Capital invest at?
- Nucleation Capital invests at the Seed, Series A stages.
- What sectors does Nucleation Capital focus on?
- Nucleation Capital focuses on Cleantech, Climate Tech, Deep Tech, Energy.
- Where is Nucleation Capital located?
- Nucleation Capital is headquartered in Lynnwood, US.
- Who does Nucleation Capital co-invest with?
- Nucleation Capital most often shares deals with Neutron Power Ventures, Alumni Ventures, DCVC (Data Collective), among 128 tracked co-investors.
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