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

is bringing land back online.

is developing the pill for men.

is making safer drugs.

is robotics for the grid.

develops orally-inhaled therapeutics.

is a modern employer health plan.

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

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

uses AI to build autoimmune therapeutics.

creates specialized lipids for premium brands.

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

is fighting COVID and was acquired by $NRBO.

was a crypto wallet and was acquired by FTX.

is advancing medicine with intelligent pathology.

is building a large physics foundation model for the weather.

uses AI and robotics to develop novel drugs.

edits crop genomes and activates novel traits.

is automation tech and was acquired by $XMTR.

is software for aerospace and defense.

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

builds advanced spacecraft for sustained maneuver.

provides lifelong mental health support.

provides medication and support for quitting opioids.

helps the world communicate science.

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

uses immune organoids to design drugs.

helps couples have healthy babies.

is modern emergency department software.

is the simplest, smartest backup home battery.

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

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

uses living neurons to improve AI models.

engineers yeast to do incredible things.

is a nicotine alternative company.

is AI inference infrastructure at the metro edge.

manufactures chemicals using biology.

is a global parametric flood insurance solution.

is building novel products for cell and gene therapy.

provides virtual surgery consults and was acquired by Mendaera.

helps reduce energy costs and emissions.

unlocks a deeper understanding of your mind.

manufactures the most advanced electric powertrains.

is building a virtual immune system.

is personalized therapies for rare disease.

enriches isotopes for nuclear energy.

transforms kelp into chemicals.

is a digital recovery program and was acquired by Monument.

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

is telehealth orthodontics and was acquired by Impress.

is modernizing revenue cycle operations for healthcare.

is toxin removal for our bodies.

is building biodefense technologies.

is bringing the chemical industry online.

helped providers get paid and was acquired by $HCAT.

is robotics for data centers.

develops off-the-shelf cancer therapies.

builds and operates Micro GEO satellites.

is developing therapeutics for the immune system.

is advancing hormone-free IVF.

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

is the foundation model for the subsurface.

5

Funds

$50M

Size

$1-2M

Checks

1

Employee