Every company Rabbithole has ever backed since 2021. Pre-seed to Series B, sorted by what's working.
Eye-tracking for clinical research.
Sleep-stage AI for circadian therapy.
Lab-grown leather, but mushrooms.
Peer-to-peer lending for renovations.
Open-source LLMs for tax filings.
Synthetic biology for fragrance.
AI red-team toolkit for fintechs.
Micro-mortgages for first-time buyers.
Geothermal-as-a-service for office bldgs.
Engineered fibers from cotton waste.
Microbiome-powered skincare.
Roth IRA for the gig economy.
Distributed compute for climate models.
mRNA therapies for pets, first.
Carbon credits, blockchain-free.
Reusable packaging marketplace.
Carbon-negative fertilizer from algae.
Private inference at the edge.
Indoor light → vertical farming OS.
Subscription CSA for urban kitchens.
Async voice messaging for distributed teams.
GPU spot-market arbitrage for training runs.
Tax-loss harvesting for the unwealthy.
D2C plant-based mushroom jerky.
Bento-box meal kits, Japan-style.
Stealth — observability for AI agents.
Stealth — recommendation engines.
Resale clothing logistics layer.
Plus 99 more, hopping quietly along.
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