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

Funds

$50M

Size

$1-2M

Checks

1

Employee
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Solugen
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is a cryptocurrency exchange and went public ($COIN).

is a Medicare Advantage plan and went public ($CLOV).

helped providers get paid and was acquired by $HCAT.

is FDA compliance as a service and was acquired by $ROIV.

uses living neurons to improve AI models.

is toxin removal for our bodies.

edits crop genomes and activates novel traits.

is robotics for the grid.

is making safer drugs.

is a global parametric flood insurance solution.

is a nicotine alternative company.

built Locker Room and was acquired by Spotify ($SPOT).

is the simplest, smartest backup home battery.

unlocks a deeper understanding of your mind.

is advancing medicine with intelligent pathology.

is developing the pill for men.

provides virtual surgery consults and was acquired by Mendaera.

builds and operates Micro GEO satellites.

is a senior care marketplace and was acquired by $IAC.

is modernizing revenue cycle operations for healthcare.

helps reduce energy costs and emissions.

is a CRM app and was acquired by People.AI.

builds advanced spacecraft for sustained maneuver.

uses AI and robotics to develop novel drugs.

transforms kelp into chemicals.

develops off-the-shelf cancer therapies.

is bringing the chemical industry online.

is fighting COVID and was acquired by $NRBO.

is building a virtual immune system.

is a digital recovery program and was acquired by Monument.

is AI inference infrastructure at the metro edge.

is building a large physics foundation model for the weather.

is building biodefense technologies.

is a mental health company and was acquired by Modern Health.

is building novel products for cell and gene therapy.

is software for aerospace and defense.

is personalized therapies for rare disease.

engineers yeast to do incredible things.

provides medication and support for quitting opioids.

uses immune organoids to design drugs.

develops orally-inhaled therapeutics.

is bringing land back online.

is automation tech and was acquired by $XMTR.

gives our best friends (our dogs) more time with us.

uses AI to build autoimmune therapeutics.

is robotics for data centers.

helps couples have healthy babies.

is advancing hormone-free IVF.

helps the world communicate science.

is telehealth orthodontics and was acquired by Impress.

provides lifelong mental health support.

manufactures chemicals using biology.

is the foundation model for the subsurface.

structures the world's medical data and makes it useful.

was a crypto wallet and was acquired by FTX.

is developing therapeutics for the immune system.

enriches isotopes for nuclear energy.

is modern emergency department software.

manufactures the most advanced electric powertrains.

creates specialized lipids for premium brands.

is a modern employer health plan.

5

Funds

$50M

Size

$1-2M

Checks

1

Employee