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.
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5

Funds

$50M

Size

$1-2M

Checks

1

Employee
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Companies
Solugen
Critical Materials
Astranis
Aerospace
Biorender
Health
Curative
Health
PathAI
Health
Akasa
Health
Hexium
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Brelle
Energy
Epana Bio
Immune
Causal Labs
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TBC
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Inferra
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Lucy
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Pilgrim
Applied Bio
64-X Bio
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Able Health
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Adventris
Applied Bio
ANA Therapeutics
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Atlas
Health
Avail
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Berkeley Yeast
Critical Materials
Betty Labs
Exits
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
Exits
Floodbase
Earth Systems
Granza Bio
Immune
Headspace
Health
Hero
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Kip
Exits
Knowde
Critical Materials
Loyal
Applied Bio
Macro Oceans
Critical Materials
Miist
Applied Bio
Octant
Applied Bio
Onyx Bio
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Ophelia
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Orchid Health
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Parallel Bio
Immune
Phytoform
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Picnic Health
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Tempest
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Thalo Labs
Earth Systems
Umbrella
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Uniform Teeth
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Vital Health
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Vitra Labs
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YourChoice
Fertility

is the simplest, smartest backup home battery.

is modernizing revenue cycle operations for healthcare.

is the foundation model for the subsurface.

transforms kelp into chemicals.

was a crypto wallet and was acquired by FTX.

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

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

uses AI and robotics to develop novel drugs.

helps couples have healthy babies.

engineers yeast to do incredible things.

is building a large physics foundation model for the weather.

is software for aerospace and defense.

is a modern employer health plan.

is automation tech and was acquired by $XMTR.

is building novel products for cell and gene therapy.

develops off-the-shelf cancer therapies.

is fighting COVID and was acquired by $NRBO.

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

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

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

is a global parametric flood insurance solution.

enriches isotopes for nuclear energy.

is a digital recovery program and was acquired by Monument.

provides virtual surgery consults and was acquired by Mendaera.

edits crop genomes and activates novel traits.

is toxin removal for our bodies.

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

builds advanced spacecraft for sustained maneuver.

is making safer drugs.

uses AI to build autoimmune therapeutics.

uses immune organoids to design drugs.

builds and operates Micro GEO satellites.

helped providers get paid and was acquired by $HCAT.

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

creates specialized lipids for premium brands.

provides medication and support for quitting opioids.

manufactures chemicals using biology.

uses living neurons to improve AI models.

is developing the pill for men.

manufactures the most advanced electric powertrains.

is a nicotine alternative company.

helps reduce energy costs and emissions.

helps the world communicate science.

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

is developing therapeutics for the immune system.

is robotics for data centers.

is building a virtual immune system.

is advancing medicine with intelligent pathology.

unlocks a deeper understanding of your mind.

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

provides lifelong mental health support.

is telehealth orthodontics and was acquired by Impress.

is building biodefense technologies.

is advancing hormone-free IVF.

is robotics for the grid.

is AI inference infrastructure at the metro edge.

is personalized therapies for rare disease.

is bringing land back online.

is bringing the chemical industry online.

develops orally-inhaled therapeutics.

is modern emergency department software.

5

Funds

$50M

Size

$1-2M

Checks

1

Employee