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

Funds

$50M

Size

$1-2M

Checks

1

Employee
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Solugen
Critical Materials
Astranis
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Biorender
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Akasa
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Hexium
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64-X Bio
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Able Health
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Adventris
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ANA Therapeutics
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Atlas
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Avail
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Berkeley Yeast
Critical Materials
Betty Labs
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Blockfolio
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Checkerspot
Critical Materials
Clover Health
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Coinbase
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Enzyme
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FactoryFour
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Floodbase
Earth Systems
Granza Bio
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Headspace
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Hero
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Kip
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Knowde
Critical Materials
Loyal
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Macro Oceans
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Miist
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Octant
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Thalo Labs
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Uniform Teeth
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Vital Health
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creates specialized lipids for premium brands.

is personalized therapies for rare disease.

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

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

is developing therapeutics for the immune system.

engineers yeast to do incredible things.

is a global parametric flood insurance solution.

uses immune organoids to design drugs.

enriches isotopes for nuclear energy.

is the simplest, smartest backup home battery.

helps reduce energy costs and emissions.

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

is the foundation model for the subsurface.

is automation tech and was acquired by $XMTR.

builds advanced spacecraft for sustained maneuver.

is fighting COVID and was acquired by $NRBO.

is making safer drugs.

builds and operates Micro GEO satellites.

unlocks a deeper understanding of your mind.

was a crypto wallet and was acquired by FTX.

is AI inference infrastructure at the metro edge.

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

helps couples have healthy babies.

develops off-the-shelf cancer therapies.

uses AI to build autoimmune therapeutics.

manufactures the most advanced electric powertrains.

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

is developing the pill for men.

is telehealth orthodontics and was acquired by Impress.

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

is a digital recovery program and was acquired by Monument.

is advancing hormone-free IVF.

provides medication and support for quitting opioids.

is bringing the chemical industry online.

is building novel products for cell and gene therapy.

helps the world communicate science.

edits crop genomes and activates novel traits.

is robotics for the grid.

is modern emergency department software.

develops orally-inhaled therapeutics.

helped providers get paid and was acquired by $HCAT.

is building biodefense technologies.

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

provides virtual surgery consults and was acquired by Mendaera.

is robotics for data centers.

is advancing medicine with intelligent pathology.

uses AI and robotics to develop novel drugs.

is software for aerospace and defense.

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

manufactures chemicals using biology.

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

is a nicotine alternative company.

is building a large physics foundation model for the weather.

is modernizing revenue cycle operations for healthcare.

is building a virtual immune system.

is bringing land back online.

uses living neurons to improve AI models.

transforms kelp into chemicals.

is a modern employer health plan.

is toxin removal for our bodies.

provides lifelong mental health support.

5

Funds

$50M

Size

$1-2M

Checks

1

Employee