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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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
Stealth C
Stealth
Stealth D
Stealth
Stealth E
Stealth
Stealth F
Stealth
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Stealth
Tempest
Exits
Thalo Labs
Earth Systems
Umbrella
Exits
Uniform Teeth
Exits
Vital Health
Health
Vitra Labs
Fertility
YourChoice
Fertility

is the simplest, smartest backup home battery.

is bringing land back online.

is robotics for data centers.

engineers yeast to do incredible things.

was a crypto wallet and was acquired by FTX.

is advancing medicine with intelligent pathology.

is a nicotine alternative company.

is modernizing revenue cycle operations for healthcare.

is building novel products for cell and gene therapy.

provides lifelong mental health support.

helped providers get paid and was acquired by $HCAT.

uses AI to build autoimmune therapeutics.

creates specialized lipids for premium brands.

is building a large physics foundation model for the weather.

is a modern employer health plan.

helps the world communicate science.

is making safer drugs.

is automation tech and was acquired by $XMTR.

is a global parametric flood insurance solution.

is a digital recovery program and was acquired by Monument.

provides virtual surgery consults and was acquired by Mendaera.

manufactures chemicals using biology.

is personalized therapies for rare disease.

is advancing hormone-free IVF.

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

is telehealth orthodontics and was acquired by Impress.

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

manufactures the most advanced electric powertrains.

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

enriches isotopes for nuclear energy.

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

is the foundation model for the subsurface.

develops orally-inhaled therapeutics.

uses AI and robotics to develop novel drugs.

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

unlocks a deeper understanding of your mind.

is toxin removal for our bodies.

is bringing the chemical industry online.

uses living neurons to improve AI models.

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

is modern emergency department software.

builds and operates Micro GEO satellites.

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

is building a virtual immune system.

helps reduce energy costs and emissions.

edits crop genomes and activates novel traits.

uses immune organoids to design drugs.

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

is developing the pill for men.

is developing therapeutics for the immune system.

is AI inference infrastructure at the metro edge.

helps couples have healthy babies.

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

is software for aerospace and defense.

develops off-the-shelf cancer therapies.

builds advanced spacecraft for sustained maneuver.

provides medication and support for quitting opioids.

is fighting COVID and was acquired by $NRBO.

transforms kelp into chemicals.

is robotics for the grid.

is building biodefense technologies.

5

Funds

$50M

Size

$1-2M

Checks

1

Employee