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
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 a cryptocurrency exchange and went public ($COIN).

is fighting COVID and was acquired by $NRBO.

is automation tech and was acquired by $XMTR.

is advancing medicine with intelligent pathology.

helps the world communicate science.

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

is robotics for data centers.

helps reduce energy costs and emissions.

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

is bringing the chemical industry online.

engineers yeast to do incredible things.

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

manufactures chemicals using biology.

helped providers get paid and was acquired by $HCAT.

is modern emergency department software.

is personalized therapies for rare disease.

is building biodefense technologies.

is the simplest, smartest backup home battery.

develops off-the-shelf cancer therapies.

is a digital recovery program and was acquired by Monument.

builds advanced spacecraft for sustained maneuver.

is AI inference infrastructure at the metro edge.

uses living neurons to improve AI models.

uses AI and robotics to develop novel drugs.

is building a virtual immune system.

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

is a modern employer health plan.

creates specialized lipids for premium brands.

unlocks a deeper understanding of your mind.

edits crop genomes and activates novel traits.

is software for aerospace and defense.

is developing therapeutics for the immune system.

transforms kelp into chemicals.

uses immune organoids to design drugs.

is building a large physics foundation model for the weather.

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

is the foundation model for the subsurface.

manufactures the most advanced electric powertrains.

builds and operates Micro GEO satellites.

helps couples have healthy babies.

provides lifelong mental health support.

is building novel products for cell and gene therapy.

provides medication and support for quitting opioids.

uses AI to build autoimmune therapeutics.

is advancing hormone-free IVF.

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

is developing the pill for men.

provides virtual surgery consults and was acquired by Mendaera.

is modernizing revenue cycle operations for healthcare.

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

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

is making safer drugs.

is bringing land back online.

is robotics for the grid.

is telehealth orthodontics and was acquired by Impress.

is a global parametric flood insurance solution.

is toxin removal for our bodies.

is a nicotine alternative company.

enriches isotopes for nuclear energy.

was a crypto wallet and was acquired by FTX.

develops orally-inhaled therapeutics.

5

Funds

$50M

Size

$1-2M

Checks

1

Employee