/Investor DB

J4 Ventures — 2025 Investments

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

Ethosphereethosphere.aiinSep 2025 · $2.5M

Ethosphere is a privacy-first platform that records and analyzes in-person, customer-facing conversations on the retail sales floor to generate coaching feedback for associates, action steps for managers, and fleet-wide performance insights for brands.

AI & Machine LearningHR TechRetail TechSeattle, US

Curran Dougherty(Founder)inAhad Rana(Founder)Evan Smith(Founder)

Co-investorsAllen Institute for AI (AI2) IncubatorPoint72 VenturesAI2 IncubatorHike Ventures

Hearvanahearvana.aiNov 2025

Hearvana is developing acoustic intelligence technology aimed at enhancing listening capabilities for both humans and machines.

AI & Machine LearningDeep TechHardware

Shyam Gollakota(Founder)inMalek Itani(Founder)inTuochao Chen(Founder)

Co-investorsAllen Institute for AI (AI2) IncubatorAscend Venture CapitalPoint72 VenturesSCB 10XAI2 IncubatorAmazon Alexa Fund+6 more

Sonarsonarmentalhealth.cominFeb 2025 · $9.5M

Sonar builds technology for early identification of and intervention in youth mental health challenges, aiming to help students build support networks for preventative mental healthcare.

Digital HealthHealthtechMental Health

Drew Barvir(Founder)inGabriel MoynihanGabe

Co-investors500 GlobalInformed Ventures Advisors, LlcMaccabee VenturesNina CapitalThe 23 FundThe MBA Fund+1 more

Sonarsendsonar.comin𝕏Feb 2025 · $9.5M

Sonar is a business text messaging platform that helps sales and marketing teams engage with customers via SMS, incorporating AI and chatbots to optimize mobile channel performance and drive conversions.

AI & Machine LearningDeveloper ToolsMarketing TechMedia & EntertainmentSaaSSales Tech

Matthew Bermanin

Co-investors500 GlobalGSR VenturesNina Capital

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.