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
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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
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Ophelia
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Orchid Health
Fertility
Parallel Bio
Immune
Phytoform
Applied Bio
Picnic Health
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Pila Energy
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Remedy Scientific
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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
Health
Vitra Labs
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YourChoice
Fertility

is a nicotine alternative company.

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

uses living neurons to improve AI models.

enriches isotopes for nuclear energy.

is personalized therapies for rare disease.

is AI inference infrastructure at the metro edge.

is building a virtual immune system.

is the foundation model for the subsurface.

helped providers get paid and was acquired by $HCAT.

is building a large physics foundation model for the weather.

helps couples have healthy babies.

is toxin removal for our bodies.

unlocks a deeper understanding of your mind.

uses AI and robotics to develop novel drugs.

is the simplest, smartest backup home battery.

is developing therapeutics for the immune system.

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

is a global parametric flood insurance solution.

is modernizing revenue cycle operations for healthcare.

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

is robotics for data centers.

is bringing the chemical industry online.

is modern emergency department software.

is advancing medicine with intelligent pathology.

is a modern employer health plan.

transforms kelp into chemicals.

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

develops off-the-shelf cancer therapies.

provides virtual surgery consults and was acquired by Mendaera.

builds advanced spacecraft for sustained maneuver.

creates specialized lipids for premium brands.

provides medication and support for quitting opioids.

is automation tech and was acquired by $XMTR.

develops orally-inhaled therapeutics.

is making safer drugs.

is developing the pill for men.

uses immune organoids to design drugs.

was a crypto wallet and was acquired by FTX.

is fighting COVID and was acquired by $NRBO.

is software for aerospace and defense.

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

engineers yeast to do incredible things.

edits crop genomes and activates novel traits.

is a digital recovery program and was acquired by Monument.

manufactures chemicals using biology.

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

is building biodefense technologies.

manufactures the most advanced electric powertrains.

builds and operates Micro GEO satellites.

helps the world communicate science.

uses AI to build autoimmune therapeutics.

is advancing hormone-free IVF.

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

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

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

is telehealth orthodontics and was acquired by Impress.

is building novel products for cell and gene therapy.

is bringing land back online.

is robotics for the grid.

provides lifelong mental health support.

helps reduce energy costs and emissions.

5

Funds

$50M

Size

$1-2M

Checks

1

Employee