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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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 building a large physics foundation model for the weather.

was a crypto wallet and was acquired by FTX.

is building a virtual immune system.

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

edits crop genomes and activates novel traits.

is telehealth orthodontics and was acquired by Impress.

engineers yeast to do incredible things.

is advancing medicine with intelligent pathology.

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

manufactures chemicals using biology.

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

builds advanced spacecraft for sustained maneuver.

provides lifelong mental health support.

is making safer drugs.

provides virtual surgery consults and was acquired by Mendaera.

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

is AI inference infrastructure at the metro edge.

enriches isotopes for nuclear energy.

helps the world communicate science.

is advancing hormone-free IVF.

creates specialized lipids for premium brands.

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

unlocks a deeper understanding of your mind.

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

develops orally-inhaled therapeutics.

helped providers get paid and was acquired by $HCAT.

is a global parametric flood insurance solution.

is automation tech and was acquired by $XMTR.

is personalized therapies for rare disease.

is toxin removal for our bodies.

manufactures the most advanced electric powertrains.

uses AI and robotics to develop novel drugs.

is a nicotine alternative company.

is building novel products for cell and gene therapy.

provides medication and support for quitting opioids.

is bringing the chemical industry online.

builds and operates Micro GEO satellites.

is fighting COVID and was acquired by $NRBO.

uses living neurons to improve AI models.

is the foundation model for the subsurface.

is developing therapeutics for the immune system.

is software for aerospace and defense.

is a modern employer health plan.

is bringing land back online.

is modernizing revenue cycle operations for healthcare.

uses immune organoids to design drugs.

is robotics for the grid.

is building biodefense technologies.

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

develops off-the-shelf cancer therapies.

is the simplest, smartest backup home battery.

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

is robotics for data centers.

is developing the pill for men.

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

helps reduce energy costs and emissions.

is a digital recovery program and was acquired by Monument.

uses AI to build autoimmune therapeutics.

helps couples have healthy babies.

transforms kelp into chemicals.

is modern emergency department software.

5

Funds

$50M

Size

$1-2M

Checks

1

Employee