Risking It All?
Better Call Zal.
I’m Zal (rhymes with “Saul”), solo capitalist at Refactor. For over a decade, I’ve backed founders refactoring the real world.
I invest $1–2M in seed stage hard tech startups across the US. Refactor is a solo employee firm managing $300M across five funds. If we work together, I want to be your first call.
A Refactor founder coined “Better Call Zal.”
I try to earn it every day.
5
$50M
$1-2M
1
is a mental health company and was acquired by Modern Health.
is building biodefense technologies.
is the foundation model for the subsurface.
provides virtual surgery consults and was acquired by Mendaera.
is building novel products for cell and gene therapy.
is making safer drugs.
is building a virtual immune system.
uses AI and robotics to develop novel drugs.
uses living neurons to improve AI models.
is AI inference infrastructure at the metro edge.
is a global parametric flood insurance solution.
develops off-the-shelf cancer therapies.
is software for aerospace and defense.
edits crop genomes and activates novel traits.
provides medication and support for quitting opioids.
creates specialized lipids for premium brands.
engineers yeast to do incredible things.
is a modern employer health plan.
structures the world's medical data and makes it useful.
helps reduce energy costs and emissions.
is modernizing revenue cycle operations for healthcare.
is developing the pill for men.
is bringing the chemical industry online.
is the simplest, smartest backup home battery.
is building a large physics foundation model for the weather.
was a crypto wallet and was acquired by FTX.
uses immune organoids to design drugs.
is personalized therapies for rare disease.
is advancing medicine with intelligent pathology.
enriches isotopes for nuclear energy.
is robotics for the grid.
helped providers get paid and was acquired by $HCAT.
is toxin removal for our bodies.
manufactures chemicals using biology.
is developing therapeutics for the immune system.
is a cryptocurrency exchange and went public ($COIN).
built Locker Room and was acquired by Spotify ($SPOT).
is modern emergency department software.
develops orally-inhaled therapeutics.
manufactures the most advanced electric powertrains.
provides lifelong mental health support.
builds and operates Micro GEO satellites.
uses AI to build autoimmune therapeutics.
is a senior care marketplace and was acquired by $IAC.
is advancing hormone-free IVF.
helps couples have healthy babies.
is automation tech and was acquired by $XMTR.
transforms kelp into chemicals.
gives our best friends (our dogs) more time with us.
helps the world communicate science.
is a CRM app and was acquired by People.AI.
is a nicotine alternative company.
is a digital recovery program and was acquired by Monument.
is telehealth orthodontics and was acquired by Impress.
is fighting COVID and was acquired by $NRBO.
is robotics for data centers.
builds advanced spacecraft for sustained maneuver.
is a Medicare Advantage plan and went public ($CLOV).
is FDA compliance as a service and was acquired by $ROIV.
unlocks a deeper understanding of your mind.
is bringing land back online.
