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

is a modern employer health plan.

is the foundation model for the subsurface.

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

is telehealth orthodontics and was acquired by Impress.

enriches isotopes for nuclear energy.

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

provides lifelong mental health support.

is making safer drugs.

builds advanced spacecraft for sustained maneuver.

is fighting COVID and was acquired by $NRBO.

is modernizing revenue cycle operations for healthcare.

engineers yeast to do incredible things.

is personalized therapies for rare disease.

helps the world communicate science.

develops off-the-shelf cancer therapies.

transforms kelp into chemicals.

helped providers get paid and was acquired by $HCAT.

is AI inference infrastructure at the metro edge.

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

is automation tech and was acquired by $XMTR.

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

provides virtual surgery consults and was acquired by Mendaera.

uses AI and robotics to develop novel drugs.

is developing therapeutics for the immune system.

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

uses immune organoids to design drugs.

is a global parametric flood insurance solution.

is bringing the chemical industry online.

provides medication and support for quitting opioids.

uses AI to build autoimmune therapeutics.

unlocks a deeper understanding of your mind.

helps reduce energy costs and emissions.

is a nicotine alternative company.

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

is building biodefense technologies.

is advancing hormone-free IVF.

creates specialized lipids for premium brands.

is building a virtual immune system.

helps couples have healthy babies.

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

is bringing land back online.

is the simplest, smartest backup home battery.

is software for aerospace and defense.

is robotics for data centers.

develops orally-inhaled therapeutics.

is advancing medicine with intelligent pathology.

manufactures chemicals using biology.

is toxin removal for our bodies.

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

is modern emergency department software.

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

edits crop genomes and activates novel traits.

uses living neurons to improve AI models.

is a digital recovery program and was acquired by Monument.

is building a large physics foundation model for the weather.

was a crypto wallet and was acquired by FTX.

manufactures the most advanced electric powertrains.

builds and operates Micro GEO satellites.

is developing the pill for men.

is robotics for the grid.

is building novel products for cell and gene therapy.

5

Funds

$50M

Size

$1-2M

Checks

1

Employee