/Investor DB

IronGate Capital Advisors — 2025 Investments

3 investments dated 2025 · listed companies and verified rows first · show all

Lonestar Data Holdingslonestar.spaceOct 2025

Lonestar builds orbital data storage and AI infrastructure, placing "data embassies" on satellites and the Moon to preserve critical information under a customer's own sovereign legal authority.

AI & Machine LearningData & InfrastructureSpace TechSt Petersburg, US

Christopher Stott(Executive Officer, Director)Carol Goldstein(Executive Officer)inMark Matossian(Executive Officer)Michael Potter(Director)

BoardBradley C. Harrison(Director)inJose Hernandez(Director)

Co-investorsScout VenturesScout VenturesAtypical VenturesKittyHawk VenturesSeldor CapitalThe Veteran Fund

Osney Capitalosneycapital.comin𝕏Apr 2025

Osney Capital is a venture capital firm specializing in early-stage cybersecurity companies in the UK, typically investing in rounds under £5m.

CybersecurityUK, GB

Co-investorsEnterprise Capital FundsBritish Business Bank

Zeno Power Systemszenopower.comin𝕏Jan 2025

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)+21 more

Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.