/Investor DB

Fathom Fund — Full Portfolio

5 tracked investments · listed companies and verified rows first

Xscape Photonicsxscapephotonics.cominOct 2024 · $44M✓ verified

Xscape Photonics develops laser light sources for AI infrastructure, including comb-based laser modules and wafer-scale integrated multicolor laser chiplets.

AI & Machine LearningDeep TechHardwareSemiconductorsFort Lee, US

Alexander Gaeta(Executive Officer, Director)inVivek Raghunathan(Co-Founder & CEO)inYoshitomo Okawachi(Executive Officer)Alexander Kash(Executive Officer, Director)Alex(Co-Founder & President)Yoshi(Co-Founder & VP of R&D)

Co-investorsCisco InvestmentsIAG Capital PartnersLifeX VenturesNVIDIAOUP (Osage University Partners)Addition+2 more

FeX Energyfexenergy.cominSep 2025 · $4.8M

FeX Energy develops iron-based thermochemical energy storage systems that convert electricity into sustained high-temperature heat up to 900°C for industrial applications.

CleantechDeep TechEnergyMontreal, CA

Jeffrey Bergthorson(Professor)

Co-investorsAmplify CapitalMaRS Investment Accelerator Fund (IAF)Antares Ventures Pte. Ltd.

NovoLINCnovolinc.cominDec 2025 · $10.2M

NovoLINC develops nanocomposite thermal interface materials designed to lower thermal resistance and improve heat dissipation in electronic chipsets.

Deep TechHardwareNew MaterialsPittsburgh, US

Robert Wenner(Executive Officer)Sheng Shen(Executive Officer, Director)

BoardTina Tosukhowong(Director)inEric Rosenblum(Director)inNing Li(Executive Officer, Director)inPaul Sheng(Director)in

Co-investorsFoothill VenturesHitachi VenturesM VenturesTDK VenturesCarnegie Mellon University

Personagetpersona.xyzinMay 2025 · $27M

A platform for qualitative research that recruits participants from a global panel or accepts brought-in participants and conducts AI-moderated interviews in 50+ languages.

AI & Machine LearningData & InfrastructureMarketing TechSaaS

Rick Song(Founder & CEO)inCharles Yeh(Founder)in

Co-investorsm]x[v CapitalEmbedded VenturesFounders FundGOOSE CapitalIBK CapitalInvicta Growth+5 more

Persona AIpersona.aiin𝕏Jul 2026 · $27M

Persona AI develops modular industrial humanoid robots for skilled physical tasks such as welding, grinding, inspection, fabrication, and maintenance.

AI & Machine LearningHardwareRobotics

Nicolaus Radford(Co-Founder and CEO)inJide Akinyode(Co-Founder and COO)inJerry Pratt(Co-Founder and CTO)in

Co-investorsBaseTwoBig Brain HoldingsEmbedded VenturesFelix JahnGOOSE CapitalK50 Ventures+9 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.