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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PathAI
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Akasa
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Hexium
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Epana Bio
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Able Health
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Adventris
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ANA Therapeutics
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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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Enzyme
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FactoryFour
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provides medication and support for quitting opioids.

is the simplest, smartest backup home battery.

manufactures the most advanced electric powertrains.

is making safer drugs.

is a modern employer health plan.

manufactures chemicals using biology.

is bringing the chemical industry online.

is toxin removal for our bodies.

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

is automation tech and was acquired by $XMTR.

helps couples have healthy babies.

is bringing land back online.

helps the world communicate science.

is building a virtual immune system.

is the foundation model for the subsurface.

is telehealth orthodontics and was acquired by Impress.

is advancing hormone-free IVF.

is robotics for data centers.

helps reduce energy costs and emissions.

is building biodefense technologies.

edits crop genomes and activates novel traits.

provides virtual surgery consults and was acquired by Mendaera.

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

was a crypto wallet and was acquired by FTX.

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

is AI inference infrastructure at the metro edge.

is building novel products for cell and gene therapy.

uses immune organoids to design drugs.

enriches isotopes for nuclear energy.

builds and operates Micro GEO satellites.

is developing therapeutics for the immune system.

is modernizing revenue cycle operations for healthcare.

is fighting COVID and was acquired by $NRBO.

develops off-the-shelf cancer therapies.

provides lifelong mental health support.

helped providers get paid and was acquired by $HCAT.

is modern emergency department software.

is a digital recovery program and was acquired by Monument.

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

uses AI and robotics to develop novel drugs.

is a global parametric flood insurance solution.

uses living neurons to improve AI models.

is advancing medicine with intelligent pathology.

creates specialized lipids for premium brands.

builds advanced spacecraft for sustained maneuver.

is a nicotine alternative company.

develops orally-inhaled therapeutics.

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

is building a large physics foundation model for the weather.

is personalized therapies for rare disease.

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

transforms kelp into chemicals.

engineers yeast to do incredible things.

is robotics for the grid.

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

is software for aerospace and defense.

is developing the pill for men.

uses AI to build autoimmune therapeutics.

unlocks a deeper understanding of your mind.

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

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

5

Funds

$50M

Size

$1-2M

Checks

1

Employee