Greenwich · 6 people tracked
Also known as Tamarack Global Impulse Space · TAMARACK GLOBAL MANAGER LLC
Find your way into Tamarack Global
2,957 people in our graph share verified history with the Tamarack Global team — schools, employers, funds. One of them is your warm intro.
Investment thesis
Tamarack Global concentrates its investing on frontier and hard-technology themes, highlighting defense technology and national security, energy dominance, artificial intelligence applied to the physical world, advanced manufacturing, and the space economy. The firm also references a convergence of venture capital and private equity approaches ('The VC/PE Collision'), suggesting a strategy that blends both models. The homepage organizes its work around these thematic investment areas rather than a single stage or sector, indicating a focus on capital-intensive, strategically significant industries.
Source: firm website, verified Sep 15, 2026.
Team · 6 people
from the firm's website & curated & public directories
Founder mafia
2 people who came through Tamarack Global went on to found or lead other companies.
What they invest in
from 16 of 38 portfolio companiesDeep Tech ×6AI & Machine Learning ×5Hardware ×5Cleantech ×4Climate Tech ×4Defense Tech ×4Energy ×4Advanced Manufacturing ×3
HQs:United States×10United Kingdom×1
Who they back
founder profiles across 14 portfolio companiesFounding team size:solo founder×42 founders×73 founders×3
Where their founders studiedfrom 18 founders with education data
Texas A&M University ×2University of California, Berkeley ×2University of Michigan ×2
What their founders studiedfrom 14 founders with field-of-study data
Engineering ×5Computer Science ×4Finance & Accounting ×2
Where their founders worked beforefrom 18 founders with career history
Virgin Orbit ×2
Accelerator rootsportfolio companies that came through a program
Investments · 38 tracked
founders shown can be your intro path
Archer Aviation is an aircraft manufacturer developing commercial aviation technology, including certification and defense applications.
Hardware
Adam Goldstein(Founder)in
Co-investorsA-Rod CorpAccess Technology VenturesAlleyCorpEvolution VC PartnersFJ LabsHabitat Partners+4 more
Antithesis provides deterministic simulation testing software that automatically finds and reproduces bugs in mission-critical software systems.
AI & Machine LearningDeveloper ToolsEnterprise SoftwareSaaS
Will Wilson(CEO & Co-Founder)inDave Scherer(Co-Founder)Nick Lavezzo(Founder)in
Co-investorsAmplify PartnersBoulder VenturesFrontline VenturesSpark CapitalTeamworthy VenturesWorldQuant Ventures+1 more
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)
BoardOrin Hoffman(Director)Michael Kearney(Director)in
Co-investorsAt One VenturesAngular VenturesNucleation CapitalThe Engine VenturesFounders FundKhosla Ventures+3 more
Chaos Inc. develops portable radar systems and unmanned aerial system (UAS) detection technology for defense applications, offering efficient multi-target tracking and rapid deployment capabilities.
Defense TechHardware
John Tenet(Founder)Gavin Hood(Founder)inJohn T.(Founder)in
Co-investors8VCAccelAlpha Wave GlobalHOF CapitalInflection VenturesManhattan Venture Partners+6 more
Divergent designs, manufactures, and assembles complex metal structures using adaptive factories that operate without fixed tooling, enabling multiple products to be made on the same platform in a single day.
Advanced ManufacturingDefense TechHardwareTorrance, US
Lukas Czinger(Founder)inKevin Czinger(Founder)in
Co-investorsRadicle Impact
Earth AI uses AI to locate critical mineral deposits by analyzing geological data, supporting the supply chain for hardware and emerging technologies.
Advanced ManufacturingAI & Machine LearningClimate TechDeep TechNew MaterialsSan Francisco, US
Roman Teslyuk(Founder)in
BoardIan Rountree(Director)inMikhail Taver(Director)inJamie Lee(Director)inIsabella Sykes(Director)Arnoud Balhuizen(Director)
Co-investorsAirTree VenturesAlpaca VCBlackbird VenturesCantos VenturesCorigin VenturesDCVC (Data Collective)+12 more
Genies creates AI personas with visual avatars that can be customized and deployed across various applications, games, websites, and brands, functioning as AI companions, NPCs, and enterprise agents.
AI & Machine LearningConsumerGamingLos Angeles, US
Akash Nigam(Founder)inEvan Rosenbaum(Founder)in
Co-investorsA.Capital VenturesBase Venture Management, Inc.Breyer CapitalCoinbase VenturesCoinFundCollab+Currency+24 more
Impulse Space develops in-space mobility infrastructure and spacecraft, enabling transportation and logistics between Earth orbit, the Moon, and Mars.
Deep TechDefense TechSpace TechRedondo Beach, US
Tom Mueller(Founder & CEO)inThomas Mueller(Founder)inEric Romo(Executive Officer, Director)inMargaret Abernathy(Executive Officer)in
BoardMichael Linse(Director)inJohn William Raymond(Director)
Co-investors137 VenturesAlumni VenturesArctic DigitalBalerion Space VenturesBanner VCBasecamp Fund+13 more
Isembard builds software and operates a network of distributed precision factories to accelerate manufacturing from prototype to factory-scale production.
Advanced ManufacturingAI & Machine LearningDeep TechEnterprise SoftwareLondon, GB
Alexander Fitzgerald(CEO)in
Co-investorsIQ CapitalNotion CapitalUnion Square Ventures (USV)CIV
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Natrion develops solid-state battery materials, including a US-made ceramic-polymer "active separator" for lithium-ion and Li-metal cells.
EnergyAlbany, US
Thomas Rouffiac(Cofounder)inAlex Kosyakov(Cofounder)
BoardManas Gosavi(Director)Terry Howerton(Director)in
Co-investorsCool Climate CollectiveIllinois VenturesIU VenturesLG Technology VenturesUnruly CapitalTechNexus Venture Collaborative
Phosphor is a technology-enabled real asset developer that builds development pipelines and non-dilutive growth financing for industrial and climate technology companies, targeting institutional capital.
CleantechClimate TechEnergy
Poseidon develops unmanned aerial vehicles for cargo logistics, specifically wave-skimming seagliders designed to reduce the cost per ton-mile of air freight.
Deep TechHardwareLogistics & Supply ChainSan Francisco, US
Parker Tenney(Cofounder)inDavid Zagaynov(Cofounder)in
Co-investorsBig Brain HoldingsCade VenturesDraper AssociatesGoAhead VenturesStarship VenturesTq Ventures Llc
Reload Energy develops and delivers digital and energy infrastructure sites selected for resilient access to fiber, power, water, and natural gas networks.
CleantechEnergy
Co-investorsService Provider Capital
Rainmaker provides a cryptocurrency wallet using account abstraction technology that allows users to open accounts via email, fund them directly from traditional banking sources, and participate in decentralized finance without paying blockchain transaction fees.
Fintech
Carlos Reyes Stoneham(Founder)inBrent Traut(Founder)in
Co-investorsY CombinatorChampion Hill VenturesDay One VenturesLong Journey Ventures
Rainmaker uses cloud seeding technology to combat water scarcity by generating freshwater at scale.
AgTechCleantechClimate TechDeep TechEl Segundo, US
Augustus Doricko(Founder)in
Co-investorsChampion Hill VenturesInvariantes FundKortschak Investments L.P.Long Journey VenturesSpacecadet VenturesStarship Ventures+4 more
Rilian builds Caspian, an agentic security orchestration platform that unifies a fragmented security stack through a single interface and captures practitioner expertise, alongside DawnTreader, a deployment engine for air-gapped, sovereign, and compliance-restricted environments.
AI & Machine LearningCybersecurityDefense Tech
Co-investorsFirst In
Investment and project development firm combining venture capital with project execution to scale technology companies in industrial sectors.
Co-investorsEnsemble VC
Mohammad Adib(Cofounder)Noah Benton(Cofounder)
Co-investorsLong Journey Ventures
Trousdale Ventures is a global venture capital firm that invests in mission-driven companies across climate tech, deep tech, space and mobility, and consumer sectors.
Sector AgnosticSeal Beach, US
Sarah Duggleby(Executive Officer, Director)inAndrew Duggleby(Executive Officer, Director)in
BoardPhillip Sarofim(Founder)in
Co-investorsCubit CapitalHalogen Ventures Management Company LlcMercury FundMESHRed Beard VenturesSeraph Group+6 more
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
10 Figure12 Fuse EnergyABL Space SystemsBlue Energy NnrkkCHAOS IndustriesChirpChirp RoboticsFigureFuse EnergyImpulsePoseidonRadiant NuclearReady aiReadyAIReloadStealth (EV OEM)Stealth EVTerminal IndustriesVest
Exits · 1
1 IPOsArcher AviationNYSE: ACHR
Portfolio news
latest coverage across their companiesGenies · en.wikipedia.org · Aug 18, 2026
Venus Aerospace · houston.innovationmap.com · Jul 30, 2026
The New Industrial Corporation · alleywatch.com · Jul 21, 2026
Blue Energy · simplywall.st · Jul 18, 2026
Impulse Space · govconwire.com · Jun 5, 2026
Isembard · tectonicdefense.com · Mar 10, 2026
Frequently asked questions
- How many investments has Tamarack Global made?
- Tamarack Global has 38 tracked investments, 1 of which have exited, including 1 dated in the last 24 months.
- What sectors does Tamarack Global focus on?
- Tamarack Global focuses on Advanced Manufacturing, AI & Machine Learning, Cleantech, Climate Tech, Deep Tech, Defense Tech, Energy, Fintech, Hardware, Logistics & Supply Chain, Mobility & Transportation, New Materials, Robotics, Space Tech.
- Where is Tamarack Global located?
- Tamarack Global is headquartered in Greenwich, US.
- Does Tamarack Global lead rounds?
- Tamarack Global typically participates in rounds rather than leading them.
- Who does Tamarack Global co-invest with?
- Tamarack Global most often shares deals with 8VC, DCVC (Data Collective), Manhattan Venture Partners, among 106 tracked co-investors.
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