Fundraising Fox

Sebastian Giwa

Founder

Founder at Ossium Health

United States

FoundedOssium Health

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8,568 people in our graph share verified history with Sebastian — schools, employers, funds. One of them is your warm intro.

Founder at Ossium Health

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Ossium Health's investors · 8

FemHealth VenturesShort Hills · since 2018First Round CapitalSan Francisco · $1M – $7M checks · since 2018Hemisphere Ventures LLCMckinney · since 2018Manta Ray VenturesLondon · since 2018National Institutes of Health (NIH)since 2017Village GlobalCovina · $100K – $500K checks · since 2018Vivo CapitalPalo Alto · $10M – $50M checks · since 2018XYZ Venture CapitalSan Francisco · $10K – $5M checks · since 2018

Co-founders at Ossium Health

KCKevin Caldwell
Kevin CaldwellCEO, Co-Founder & President
DW
Dr. WoodsChief Science Officer, Co-Founder, EVP, CLIA Laboratory Director
EWErik Woods
Erik WoodsFounder

Experience

  1. Sylvatica Biotech, Expanse Bio and (since 2025) Stealth CoFounder & CEOcurrent2021 — present
  2. Elevian, Inc.Founding Executive Chairman / Since 2021, Chairman2017 — 2023Menlo Park, CA & Cambridge, MA
  3. Ossium Inc / Ossium HealthFounder, CEO and Executive Chairman2014 — 2018
  4. Organ Preservation AllianceFounder and CEO, then Chairman2012 — 2017NASA Research Park, Mountain View, Ca (Silicon Valley)
  5. Bridgewater AssociatesSenior Investment Associate2009 — 2015
  6. Bain & CompanyConsultant2004 — 2007
  7. Goldman SachsSummer Analyst2003
  8. .President, The Swedish National Youth Council2000 — 2002

Skills & more

Creative EntrepreneurshipResearch and Development (R&D)BiotechnologyManagement ConsultingPrivate EquityDue DiligenceValuationResearchFinancial ModelingCorporate DevelopmentAsset ManagementInvestments
+12 moreHedge FundsAlternative InvestmentsFinancial AnalysisStrategyLBOEntrepreneurshipEquitiesCapital MarketsPortfolio ManagementEconomicsBusiness StrategyFixed Income

From Sebastian's professional profile.

Frequently asked questions

Who is Sebastian Giwa?
Director at Ossium Health
Where does Sebastian Giwa work?
Sebastian Giwa is Founder of Ossium Health.
What companies did Sebastian Giwa found?
Sebastian Giwa founded Ossium Health.
Where did Sebastian Giwa go to school?
Sebastian Giwa studied at Harvard Business School (MBA with High Distinction, Named a Baker Scholar); Stockholm School of Economics (Doctor of Philosophy (Ph.D.), Game theory, behavioral economics, experimental economics); Harvard University (Special PhD student, Graduate econ coursework and research).

Founder mafias

Massachusetts Institute of Technology mafia1,211

Also came through, then founded or led a company.

Elad GilPhDFounded Brain Co. +1Hemant TanejaS.B.Founded Hippocratic AINat FriedmanBachelor of ScienceFounded XamarinBrad FeldS.B.Founded TechstarsMatt HuangB.S.Founded Paradigm +1Delian AsparouhovDropoutFounded Nightingale +1

+ 1,204 more

Harvard Business School mafia885

Also came through, then founded or led a company.

Tim DraperMBAFounded Draper AssociatesMike Maples JrMBAFounded Pattern BreakersHristo BorisovOPM Class 64Founded PayhawkNoubar AfeyanVisiting LecturerFounded ProFound Therapeutics +13Wade MyersMBAFounded RealManage +6Nick PerrettPLDFounded Prosper list view +4

+ 878 more

Goldman Sachs mafia522

Also came through, then founded or led a company.

Fred EhrsamTraderFounded Nudge +1Matt HuangSummer AnalystFounded Paradigm +1David VélezAnalystFounded Nubank +1Tarek MansourEquity Derivatives AnalystFounded KalshiColin WebbSummer AnalystFounded Saucepricing +1Jeppe RindomSummer InternshipFounded Pleo

+ 515 more

Goldman Sachs mafia326

Also came through, then founded or led a company.

Fred EhrsamForeign Exchange TraderFounded Nudge +1David VélezAnalystFounded Nubank +1Tarek MansourEquity Derivatives AnalystFounded KalshiGordon WintrobSummer Analyst, Investment BankingFounded Newfrontinsurance +2Henson OrserAssociateFounded Soter +2Steffen Wulff PetersenSummer Analyst, IBD - Nordic M&A CoverageFounded Lazada +2

+ 319 more

Bridgewater Associates mafia77

Also came through, then founded or led a company.

Max NovendsternAnalystFounded Tools for Humanity +2Margaret WangManager, China Strategy and OversightFounded Rhea Fertility +1Conor MurrayTechnology AssociateFounded Open Invest +1Phillip WeiTechnology AssociateFounded Deliveroo +1Michael HeinrichPortfolio ConstructionFounded OG Labs +1Dhruv GuptaTechnology Associate InternFounded Drumkit +1

+ 70 more

Same school

Also attended Harvard Business School2,000

Brad GerstnerFounder & CEO of Altimeter CapitalVictoria TreygerGeneral Partner at Felicis VenturesDeep NisharInvestment Team at General CatalystJohn KimInvestor Relations at General CatalystAdrianna MaInvestor at Index VenturesNeil RimerInvestor at Index Ventures

+ 1,994 more

Also attended Stockholm School of Economics312

Jeppe RindomCo-founder & CEO of PleoVictor JacobssonCo-founder of Klarna; investorJosefin LandgårdCo-founder & CEO of MANTLE; co-founder of KryMattias LjungmanInvestor at Moonfire VenturesPär-Jörgen PärsonPartner at NorthzoneJessica SchultzPartner at Northzone

+ 306 more

Also attended Harvard University2,000

Ron ConwayFounder of SV AngelAlfred LinPartner at Sequoia CapitalChris DixonFounder & Managing Partner of a16z crypto at Andreessen HorowitzSarah TavelVenture Partner at BenchmarkDanny RimerPartner at Index VenturesLaela SturdyManaging Partner at CapitalG

+ 1,994 more

Also attended Massachusetts Institute of Technology2,000

Fred WilsonCo-founder & Partner at Union Square VenturesElad GilSolo general partner investing through Gil CapitalAileen LeeFounder & Managing Partner of Cowboy VenturesHemant TanejaCEO & Managing Director of General CatalystPhilippe LaffontFounder & CIO of Coatue ManagementNat FriedmanCo-lead of Meta Superintelligence Labs; co-founder of NFDG

+ 1,994 more

Shared employers

Also worked at Elevian, Inc.3

Justin BriggsScientist, entrepreneur, and investor building companies at the nexus of biology, chemistry, and engineeringMark LeslieExecutive Advisory Board at NYU Innovation Venture FundMark AllenExecutive Officer, Director at Elevian

Also worked at Ossium Inc / Ossium Health2

Kevin CaldwellCEO, Co-Founder & President at Ossium HealthErik WoodsFounder at Ossium Health

Also worked at Organ Preservation Alliance2

Alexander Wissner-GrossManaging Director at ReifiedErik WoodsFounder at Ossium Health

Also worked at Bridgewater Associates163

Max NovendsternCo-founder of Tools for Humanity; founder of ManaCoen ArmstrongInvestor at Spark CapitalJared FriedmanYC Group PartnerAnkit GuptaGeneral Partner at Y CombinatorMark LurieVenture Partner at FJ LabsNicole FraenkelInvestor at Khosla Ventures

+ 157 more