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. One investor 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
Aerospace
Biorender
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PathAI
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Akasa
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Hexium
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Brelle
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Epana Bio
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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
Immune
Headspace
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Hero
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Kip
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Knowde
Critical Materials
Loyal
Applied Bio
Macro Oceans
Critical Materials
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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Vitra Labs
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is the foundation model for the subsurface.

is a global parametric flood insurance solution.

is developing the pill for men.

is robotics for data centers.

builds advanced spacecraft for sustained maneuver.

is a modern employer health plan.

was a crypto wallet and was acquired by FTX.

uses living neurons to improve AI models.

uses AI to build autoimmune therapeutics.

provides medication and support for quitting opioids.

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

is advancing medicine with intelligent pathology.

is the simplest, smartest backup home battery.

is making safer drugs.

helps reduce energy costs and emissions.

is advancing hormone-free IVF.

is developing therapeutics for the immune system.

helps couples have healthy babies.

is fighting COVID and was acquired by $NRBO.

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

is personalized therapies for rare disease.

is bringing the chemical industry online.

is a nicotine alternative company.

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

uses AI and robotics to develop novel drugs.

manufactures the most advanced electric powertrains.

provides lifelong mental health support.

is a digital recovery program and was acquired by Monument.

develops off-the-shelf cancer therapies.

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

is building novel products for cell and gene therapy.

is automation tech and was acquired by $XMTR.

is toxin removal for our bodies.

is telehealth orthodontics and was acquired by Impress.

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

provides virtual surgery consults and was acquired by Mendaera.

is software for aerospace and defense.

is bringing land back online.

engineers yeast to do incredible things.

helps the world communicate science.

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

edits crop genomes and activates novel traits.

is building biodefense technologies.

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

creates specialized lipids for premium brands.

helped providers get paid and was acquired by $HCAT.

is robotics for the grid.

uses immune organoids to design drugs.

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

develops orally-inhaled therapeutics.

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

is modernizing revenue cycle operations for healthcare.

enriches isotopes for nuclear energy.

transforms kelp into chemicals.

manufactures chemicals using biology.

builds and operates Micro GEO satellites.

is AI inference infrastructure at the metro edge.

is building a virtual immune system.

is building a large physics foundation model for the weather.

unlocks a deeper understanding of your mind.

is modern emergency department software.

5

Funds

$50M

Size

$1-2M

Checks

1

Employee