Risking It All?
Better Call ↳Zal.
I’m Zal (rhymes with “Saul”), solo GP at Refactor. For over a decade, I’ve backed founders refactoring the real world: atoms, not bits.
I invest $1–2M in seed stage hard tech startups across the US. One investor managing $300M across five funds. If we work together, I want to be your first call.
Submit your pitch → it goes straight to my inbox.
A Refactor founder coined “Better Call Zal.” I try to earn it every day.
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$50M
$1-2M
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gives our best friends (our dogs) more time with us.
is a cryptocurrency exchange and went public ($COIN).
is AI inference infrastructure at the metro edge.
is building a virtual immune system.
creates specialized lipids for premium brands.
develops off-the-shelf cancer therapies.
unlocks a deeper understanding of your mind.
is the simplest, smartest backup home battery.
built Locker Room and was acquired by Spotify ($SPOT).
helps the world communicate science.
helped providers get paid and was acquired by $HCAT.
is automation tech and was acquired by $XMTR.
engineers yeast to do incredible things.
is robotics for data centers.
builds advanced spacecraft for sustained maneuver.
is a senior care marketplace and was acquired by $IAC.
is building a large physics foundation model for the weather.
structures the world's medical data and makes it useful.
is building novel products for cell and gene therapy.
enriches isotopes for nuclear energy.
transforms kelp into chemicals.
provides medication and support for quitting opioids.
is bringing the chemical industry online.
provides lifelong mental health support.
is the foundation model for the subsurface.
is a Medicare Advantage plan and went public ($CLOV).
is a nicotine alternative company.
provides virtual surgery consults and was acquired by Mendaera.
is developing therapeutics for the immune system.
helps couples have healthy babies.
helps reduce energy costs and emissions.
is advancing medicine with intelligent pathology.
uses AI to build autoimmune therapeutics.
uses AI and robotics to develop novel drugs.
is a modern employer health plan.
is telehealth orthodontics and was acquired by Impress.
develops orally-inhaled therapeutics.
is a digital recovery program and was acquired by Monument.
is modern emergency department software.
edits crop genomes and activates novel traits.
is a CRM app and was acquired by People.AI.
uses living neurons to improve AI models.
is a global parametric flood insurance solution.
uses immune organoids to design drugs.
is advancing hormone-free IVF.
is FDA compliance as a service and was acquired by $ROIV.
is robotics for the grid.
is personalized therapies for rare disease.
is modernizing revenue cycle operations for healthcare.
is bringing land back online.
is a mental health company and was acquired by Modern Health.
is fighting COVID and was acquired by $NRBO.
builds and operates Micro GEO satellites.
manufactures chemicals using biology.
was a crypto wallet and was acquired by FTX.
is software for aerospace and defense.
is making safer drugs.
is building biodefense technologies.
is developing the pill for men.
is toxin removal for our bodies.
manufactures the most advanced electric powertrains.
