/Investor DB

Haystack — 2025 Investments

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

AlphaXivalphaxiv.orgin𝕏Nov 2025 · $7M

alphaXiv is a platform that connects academic papers, researchers, and organizations, providing AI-grounded answers based on underlying research work.

AI & Machine LearningDeep TechMedia & Entertainment

Rehaan Ahmad(Founder)inLino Le Van(Founder)inDaniel J. Kim(Founder)inRaj Palleti(Founder)

Co-investorsSHAKTIThe Westly GroupUpfront VenturesInnovation EndeavorsMenlo Ventures

Boardboard.fun𝕏Feb 2025

Board makes physical, tabletop board games designed for in-person, face-to-face play, emphasizing tactile game pieces and inclusive design for players of all ages and skill levels.

ConsumerGamingHardwareMiami, US

Brynn Putnam(Founder)Antonio Goncalves(Executive Officer, Director)Jake Vollkommer(Executive Officer, Director)

BoardJonathan Bradford(Director)

Co-investorsBoxGroupCoalition OperatorsFirst Round CapitalIngeborg InvestmentsLerer HippeauPatron+1 more

Conductor AIconductorai.coinMar 2025 · $15M

Conductor AI builds the Conduit platform, which ingests complex policy documents and encodes expert processes into AI-powered agentic workflows for document review, approval, agentic search, and redaction.

AI & Machine LearningDefense TechGovTechBiddeford, US

Eric Schwartz(Executive Officer, Director)inBen Fichter(Founder)inZachary Long(Executive Officer, Director)

Co-investorsAbstract VenturesBooz Allen VenturesBungalow CapitalHumba VenturesLux CapitalSunflower Capital Management Fund+2 more

Rivetrivet.appin𝕏Nov 2025 · $5.1M

Rivet is a marketing platform that unifies fan and audience data across social, commerce, ticketing, ads, and streaming to identify high-intent segments and activate them via email, SMS, DMs, ads, and D2C tools.

AI & Machine LearningMarketing TechSaaS

Simran Pabla(Founder)inAnj "Fayemz" Fayemi(Founder)in

Co-investorsLongJump VenturesRevUp CapitalService Provider CapitalCapitalize VCSusa VenturesXYZ Venture Capital

Rivet Workrivet.workinNov 2025 · $5.1M

RIVET's platform provides workforce management and communication tools for specialty contractors, enabling centralized dispatch of schedules, job assignments, and workforce notifications across field teams.

Construction TechEnterprise SoftwareFuture of WorkSaaSDetroit, US

Louis Gelinas(Executive Officer)inRyan Meitl(Executive Officer, Director)inAndrew(VP of Engineering)PatrickAdamRandy

Co-investorsAugment VenturesBrick Mortar VenturesDefy PartnersDetroit Venture PartnersDraper Goren BlockchainMichigan Rise+3 more

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

Onos Health

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.