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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enriches isotopes for nuclear energy.

manufactures the most advanced electric powertrains.

develops orally-inhaled therapeutics.

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

is toxin removal for our bodies.

helps reduce energy costs and emissions.

is developing therapeutics for the immune system.

is the foundation model for the subsurface.

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

uses immune organoids to design drugs.

helps the world communicate science.

is building biodefense technologies.

is robotics for data centers.

is bringing the chemical industry online.

uses AI and robotics to develop novel drugs.

is developing the pill for men.

was a crypto wallet and was acquired by FTX.

is telehealth orthodontics and was acquired by Impress.

is the simplest, smartest backup home battery.

creates specialized lipids for premium brands.

is building a virtual immune system.

is making safer drugs.

edits crop genomes and activates novel traits.

uses living neurons to improve AI models.

provides medication and support for quitting opioids.

is robotics for the grid.

uses AI to build autoimmune therapeutics.

is building novel products for cell and gene therapy.

is a nicotine alternative company.

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

builds advanced spacecraft for sustained maneuver.

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

is advancing medicine with intelligent pathology.

is modernizing revenue cycle operations for healthcare.

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

is bringing land back online.

is a digital recovery program and was acquired by Monument.

builds and operates Micro GEO satellites.

develops off-the-shelf cancer therapies.

unlocks a deeper understanding of your mind.

helped providers get paid and was acquired by $HCAT.

is modern emergency department software.

provides lifelong mental health support.

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

transforms kelp into chemicals.

helps couples have healthy babies.

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

provides virtual surgery consults and was acquired by Mendaera.

is advancing hormone-free IVF.

is AI inference infrastructure at the metro edge.

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

is software for aerospace and defense.

is personalized therapies for rare disease.

is automation tech and was acquired by $XMTR.

engineers yeast to do incredible things.

manufactures chemicals using biology.

is fighting COVID and was acquired by $NRBO.

is a global parametric flood insurance solution.

is building a large physics foundation model for the weather.

is a modern employer health plan.

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

5

Funds

$50M

Size

$1-2M

Checks

1

Employee