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
Energy
Brelle
Energy
Epana Bio
Immune
Causal Labs
Earth Systems
TBC
AI Infra
General Galactic
Aerospace
Inferra
AI Infra
Lucy
Exits
Pilgrim
Applied Bio
64-X Bio
Applied Bio
Able Health
Exits
Adventris
Applied Bio
ANA Therapeutics
Exits
Atlas
Health
Avail
Exits
Berkeley Yeast
Critical Materials
Betty Labs
Exits
Blockfolio
Exits
Checkerspot
Critical Materials
Clover Health
Exits
Coinbase
Exits
Enzyme
Exits
FactoryFour
Exits
Floodbase
Earth Systems
Granza Bio
Immune
Headspace
Health
Hero
Exits
Kip
Exits
Knowde
Critical Materials
Loyal
Applied Bio
Macro Oceans
Critical Materials
Miist
Applied Bio
Octant
Applied Bio
Onyx Bio
Immune
Ophelia
Health
Orchid Health
Fertility
Parallel Bio
Immune
Phytoform
Applied Bio
Picnic Health
Health
Pila Energy
Energy
Remedy Scientific
Earth Systems
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Stealth
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Stealth
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Stealth
Stealth D
Stealth
Stealth E
Stealth
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Stealth
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Tempest
Exits
Thalo Labs
Earth Systems
Umbrella
Exits
Uniform Teeth
Exits
Vital Health
Health
Vitra Labs
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YourChoice
Fertility

is bringing land back online.

develops off-the-shelf cancer therapies.

is building a large physics foundation model for the weather.

is software for aerospace and defense.

unlocks a deeper understanding of your mind.

is a digital recovery program and was acquired by Monument.

is toxin removal for our bodies.

is a nicotine alternative company.

is the simplest, smartest backup home battery.

builds advanced spacecraft for sustained maneuver.

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

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

creates specialized lipids for premium brands.

helped providers get paid and was acquired by $HCAT.

is advancing hormone-free IVF.

engineers yeast to do incredible things.

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

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

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

is making safer drugs.

is fighting COVID and was acquired by $NRBO.

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

is advancing medicine with intelligent pathology.

develops orally-inhaled therapeutics.

is AI inference infrastructure at the metro edge.

edits crop genomes and activates novel traits.

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

is modern emergency department software.

manufactures chemicals using biology.

is bringing the chemical industry online.

enriches isotopes for nuclear energy.

helps couples have healthy babies.

is a modern employer health plan.

is personalized therapies for rare disease.

is automation tech and was acquired by $XMTR.

is building biodefense technologies.

uses living neurons to improve AI models.

was a crypto wallet and was acquired by FTX.

uses AI to build autoimmune therapeutics.

is developing therapeutics for the immune system.

is modernizing revenue cycle operations for healthcare.

transforms kelp into chemicals.

provides lifelong mental health support.

is the foundation model for the subsurface.

helps reduce energy costs and emissions.

is building a virtual immune system.

uses AI and robotics to develop novel drugs.

is telehealth orthodontics and was acquired by Impress.

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

helps the world communicate science.

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

provides virtual surgery consults and was acquired by Mendaera.

uses immune organoids to design drugs.

is robotics for the grid.

is robotics for data centers.

is building novel products for cell and gene therapy.

provides medication and support for quitting opioids.

builds and operates Micro GEO satellites.

is a global parametric flood insurance solution.

manufactures the most advanced electric powertrains.

is developing the pill for men.

5

Funds

$50M

Size

$1-2M

Checks

1

Employee