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.
5
$50M
$1-2M
1
helps the world communicate science.
helps reduce energy costs and emissions.
is bringing the chemical industry online.
is developing therapeutics for the immune system.
provides lifelong mental health support.
is the simplest, smartest backup home battery.
is developing the pill for men.
structures the world's medical data and makes it useful.
helped providers get paid and was acquired by $HCAT.
is building biodefense technologies.
is personalized therapies for rare disease.
enriches isotopes for nuclear energy.
is bringing land back online.
edits crop genomes and activates novel traits.
is software for aerospace and defense.
is a senior care marketplace and was acquired by $IAC.
uses AI and robotics to develop novel drugs.
is a mental health company and was acquired by Modern Health.
was a crypto wallet and was acquired by FTX.
gives our best friends (our dogs) more time with us.
unlocks a deeper understanding of your mind.
is AI inference infrastructure at the metro edge.
is building a virtual immune system.
is advancing hormone-free IVF.
helps couples have healthy babies.
builds and operates Micro GEO satellites.
is a digital recovery program and was acquired by Monument.
is advancing medicine with intelligent pathology.
is modern emergency department software.
is building a large physics foundation model for the weather.
uses immune organoids to design drugs.
built Locker Room and was acquired by Spotify ($SPOT).
is a nicotine alternative company.
is toxin removal for our bodies.
uses living neurons to improve AI models.
is a modern employer health plan.
is FDA compliance as a service and was acquired by $ROIV.
is a global parametric flood insurance solution.
is the foundation model for the subsurface.
is modernizing revenue cycle operations for healthcare.
uses AI to build autoimmune therapeutics.
transforms kelp into chemicals.
develops orally-inhaled therapeutics.
builds advanced spacecraft for sustained maneuver.
provides virtual surgery consults and was acquired by Mendaera.
is building novel products for cell and gene therapy.
is telehealth orthodontics and was acquired by Impress.
is robotics for the grid.
is making safer drugs.
is a CRM app and was acquired by People.AI.
develops off-the-shelf cancer therapies.
is robotics for data centers.
is a Medicare Advantage plan and went public ($CLOV).
provides medication and support for quitting opioids.
manufactures the most advanced electric powertrains.
is fighting COVID and was acquired by $NRBO.
is a cryptocurrency exchange and went public ($COIN).
engineers yeast to do incredible things.
is automation tech and was acquired by $XMTR.
manufactures chemicals using biology.
creates specialized lipids for premium brands.
