Thomas Giehm
InvestorInvestment Manager at Underground Ventures
Copenhagen, Capital Region of Denmark, Denmark
Find your path to Thomas
286 people in our graph share verified history with Thomas — schools, employers, funds. One of them is your warm intro.
Danielle RomanowskiunlockedThomas: together at UC Santa Barbara (2013–2014)
×2Thomas: together at Geneva Graduate Institute
Thomas: together at UC Santa Barbara
×5Thomas: together at University of York
About
Thomas Giehm is an Investment Manager at Underground Ventures, where he focuses on next-generation geothermal investments. Originally from the Faroe Islands, his areas of interest include venture capital, private equity, energy, supply chains, and aquaculture.
Experience
- Underground VenturesInvestment Managercurrent2025 — presentCopenhagen, Capital Region of Denmark, Denmark
- Endgame CapitalVenture Fellow2024 — 2025Brussels Region, Belgium
- StartupsCo-Founder2023 — 2024Amsterdam, North Holland, Netherlands
- Aqua-SparkInvestment Manager2022 — 2024Utrecht, Netherlands
- Aqua-SparkDealflow Manager2020 — 2022Utrecht, Netherlands
- Louis Dreyfus CompanyInvestment Analyst2017 — 2019Geneva, Switzerland
- International Energy AgencyTrainee - Economics and Investment Office2016Paris, France
- United Nations Economic Commission for EuropeIntern - Sustainable Energy Division2016Geneva, Switzerland
Skills & more
Microsoft Excel6Interpersonal SkillsAttention to DetailStrategy2Public Speaking13Equity FinancingVice PresidentsEntrepreneurshipDesignSalesValue EnhancementPrincipal Investing
+12 more
OriginationsEnvironmental, Social, and Governance (ESG)Financial ReportingFundraisingRisk AssessmentFund of Funds (FOF)Business Relationship ManagementPresentationsExcel ModelsVenture CapitalAquacultureAgribusinessLanguages Danish · English · Faroese · German · Norwegian · Swedish
From Thomas's professional profile.
Colleagues at Underground Ventures
Per Lundahl
Director, JA Technologies at Underground Ventures
Rebecca Schulz
Senior Analyst, International Energy Agency at Underground Ventures
Soraya Bornaz
Technology Specialist at Underground Ventures
Terra Rogers
Program Director, Superhot Rock Energy at Clean Air Task Force (CATF) at Underground Ventures
Torsten Kolind
Co-Founder & Managing Partner at Underground Ventures
Network5
Amy Novogratz
Managing Partner at Aqua Spark
Chen Zhu
Board Member Portfolio Companies at Aqua Spark
Frank van Roest
Board Member Portfolio Companies at Aqua Spark
Jan Slootweg
External expert (board member portfolio companies) at Aqua Spark
John Mairlot
Investor at Aqua Spark
Investors connected to Thomas in public investor directories — a warm-intro map.
Frequently asked questions
- Who is Thomas Giehm?
- Thomas Giehm is an Investment Manager at Underground Ventures, where he focuses on next-generation geothermal investments. Originally from the Faroe Islands, his areas of interest include venture capital, private equity, energy, supply chains, and aquaculture.
- Where does Thomas Giehm work?
- Thomas Giehm is Investment Manager at Underground Ventures.
- Where did Thomas Giehm go to school?
- Thomas Giehm studied at Geneva Graduate Institute (MA, International Affairs (Trade and International Finance)); Iceland School of Energy - Reykjavik University (Field Course, Geothermal Energy); University of Geneva (MSc, Commodity Trading).
Same school
Also attended Geneva Graduate Institute19
Melissa DonohoeVice President at Notion CapitalAviral GoenkaSenior Associate, India at Jungle VenturesUlises CejaVenture Associate at Untapped VenturesIbrahim KöranHead of GovTech at Heliad AGAmir WeitmannCo-Founder, Managing Partner at Champel CapitalFabio SofiaCo-Founder and Managing Partner at Zebra Impact Ventures
+ 13 more
Also attended University of Geneva88
Massimo PrelzInvestor at DN CapitalChristoph FreiPartner, Head of Energy at Emerald Technology Ventures AgErich SieberFounding General Partner at PeakBridge VCDavid MarcusInvestor at FELIX CAPITALMichelle PiontekImpact & ESG Associate at AENUPatrik BrudererCFO at CV Labs
+ 82 more
Also attended University of York85
Bob ThomasPartner at OxxNicole QuinnCo-Founder and Managing Partner at Connect VenturesPhil VenablesVenture Partner at Ballistic VenturesAnthony AvedissianPartner at Canonical CryptoConor ScanlanAssociate Partner at Nauta CapitalChris McCourtInvestment Director at Mercia Ventures
+ 79 more
Shared employers
Also worked at Endgame Capital3
Also worked at Aqua-Spark18
Mike VelingsCo-Founder and CEO at Aqua SparkMaria VelkovaChief Portfolio Officer (CPO) at Aqua SparkStephanie RakelsChief Development Officer (CDO) at Aqua SparkBen GimsonLead Africa at Aqua SparkJohn VogelLegal Director at Aqua SparkMichiel KraussDevelopment Officer at Aqua Spark
+ 12 more
Also worked at Louis Dreyfus Company11
Crystal OhPrincipal at Reefknot InvestmentsIoana MateiSwitzerland Board Member at MassChallenge MexicoHemantChair, Investment Committee at TRIVEElena Dal PozzoDirector at Scouting Capital & Family AdvisorsSébastien BoucrautPartner & CSO at BreegaOmar KaloutiPartner, Fund Head, Venture Capital at Ajeej Capital
+ 5 more
Also worked at International Energy Agency8
Till StenzelPartner at SET VenturesSierra PetersonFounder + Managing Partner at Voyager PartnersYu KawasakiAssociate at Acario InnovationPeter SopherInvestment Partner at Clean Energy VenturesRebecca SchulzSenior Analyst, International Energy Agency at Underground VenturesMaya Ben DrorVenture Partner at Next Gear Ventures
+ 2 more



















































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