Fundraising FoxCitadel
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What they invest in
from 5 of 6 portfolio companiesData & Infrastructure ×3Cloud Computing ×2Developer Tools ×2AI & Machine Learning ×1Biotech ×1Crypto & Web3 ×1Digital Health ×1Enterprise Software ×1
HQs:United States×4
Investments · 6 tracked
founders shown can be your intro pathBy year:2026 · 32021 · 12020 · 15 dated
Allurion offers a weight-loss program built around a swallowable, procedureless gastric balloon combined with nutrition coaching, connected digital tools, and AI-driven clinician support.
Digital HealthMedical DevicesWellness & FitnessNatick, US
Shantanu Gaur(Co-founder)inSamuel Levy(Co-founder)inBrendan Gibbons(Executive Officer)inOjas Buch(Executive Officer)inRam Chuttani(Executive Officer)Jonathan D Wecker(Executive Officer, Director)in
Co-investorsKube VCREMUS CapitalRunway Growth CapitalCPH CapitalRomulus Capital
LayerZero builds decentralized infrastructure for interoperability across blockchains and asset issuance, enabling applications and chains to connect liquidity and extend reach across ecosystems.
Crypto & Web3Data & InfrastructureDeveloper Tools
Bryan Pellegrino(Founder)inRaz Zarick(Founder)inCaleb Banister(Founder)Ryan Zarick(Founder)
Co-investorsa16z cryptoAndreessen HorowitzAndromeda CapitalBitDAOBixin CapitalBixin Ventures+36 more
Nscale builds AI infrastructure, systems, and solutions—including GPU cloud services and data center capacity—for practitioners, enterprises, and governments to deploy and scale AI workloads.
AI & Machine LearningCloud ComputingData & InfrastructureDeveloper Tools
Josh Payne(Founder)inJosh Payne Nathan Townsend(Founder)Nathan Townsend(Founder)
Co-investorsG SquaredT VenturesTORUSTranspose Platform ManagementVentureSouq8090 Industries+4 more
Clinical-stage biotech developing cell therapy products for transplant and autoimmune conditions
BiotechLouisville, US
Suzanne Ildstad(Executive Officer, Director)Scott Requadt(Executive Officer, Director)Geoff Mackay(Director)Francois Nader(Director)
BoardSandip Agarwala(Director)inMark McDade(Director)in
Co-investorsAisling CapitalKeyhorse CapitalLongitude CapitalQiming Venture Partners USAViking GlobalBlackstone Life Sciences+3 more
Yellowbrick Data provides a secure data analytics platform deployed within customer cloud accounts and on-premises, designed for enterprises that require data security, availability, and granular access control.
Cloud ComputingData & InfrastructureEnterprise SoftwareMountain View, US
Neil Carson(Founder)inMark Brinicombe(Founder)Jim Dawson(Founder)
Co-investorsThird Point VenturesBMW i VenturesGV (Google Ventures)In-Q-TelIVP (Institutional Venture Partners)Menlo Ventures+5 more
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
Exits · 1
1 IPOsAllurionOTC: ALURD
Portfolio news
latest coverage across their companies
Nscale · techcrunch.com · Sep 25, 2026
LayerZero · layerzero.network · Nov 18, 2025
Fund performance · per public LP disclosures
as of Jun 2024| Fund | Vintage | Committed | Net IRR | TVPI | DPI |
|---|---|---|---|---|---|
| Citadel Residential Mortgage Opportunities Fund, LLCLPs: North Carolina Retirement Systems | 2011 | — | 1.0% | — | — |
Source: public limited-partner disclosures (CalPERS, CalSTRS). Net IRR / TVPI / DPI as reported by the limited partner; a fund's early-year IRR is an interim estimate (J-curve).
IPO stake values · per SEC filings
Value of this firm's stake in each portfolio company at its IPO price, from the prospectus principal-stockholder table.
| Company | Owned | IPO price | At IPO | Stake value |
|---|---|---|---|---|
| Allurion | 5.3% | $1.20 | Jun 2024 | $3.1M |
Source: SEC S-1 / 424B prospectus filings. Stake value = shares beneficially owned × the initial public offering price, as disclosed — a market value at IPO, not a return multiple (the firm's original cost is not disclosed).
Frequently asked questions
- How many investments has Citadel made?
- Citadel has 6 tracked investments, 1 of which have exited, including 3 dated in the last 24 months.