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