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Refactor Capital

Burlingame, CA · Invests in US · Website

Pre-SeedSeedSeries ASeries BAI & Machine LearningHealthcare & BiotechClimate & EnergySpace & DefenseHardware & DevicesManufacturingBiotech & Life SciencesAerospace & DefenseClimate & Clean EnergySemiconductors & HardwareHealthcare & Digital Health

Thesis

The most enduring companies are created by founders willing to commercialize real science and scale real systems. We focus on hard tech at the intersection of computation and physical sciences—aerospace, biotech, energy, materials—where technical execution is the moat.

Likely not a fit for

No consumer software, no incremental improvements, no non-technical founding teams, no companies that don't require real R&D.

How they invest

Lead or follow
Usually leads
Typical decision
~1 week
Warm intro
Not required
Involvement
Advisor
Fund status
Actively deploying
Assets under mgmt
$225M
Decision process
Solo GP

Partners & team

4 contacts on file

ZB

Zal Bilimoria

General PartnerFounder & Managing Partner · Primary contact

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LinkedIn profile

X profile

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KG

Katie Greenfield

Platform & OpsAdvisor

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SS

Sara Sperling

Platform & OpsAdvisor

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DL

David Lee

PartnerPartner

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Portfolio

AstranisAerospace Defense

Astranis builds the world's most advanced satellites for high orbits, focusing on dedicated satellite broadband and supporting government science, PNT, and communications missions.

64xEnterprise Software

64x.com offers digital imaging, web hosting, and design services, including posters, banners, and promotional product imprinting.

GencoveBiotech Life Sciences

Gencove is unlocking the value of genetic data, enabling the most ambitious applications of genomics across industries, including human and agricultural genomics.

LoyalfordogsBiotech Life Sciences

Loyalfordogs is a veterinary medicine company focused on extending dogs' lifespans and healthspans through clinical-stage drug development.

Octant BioBiotech Life Sciences

Octant is a therapeutics company building small molecule drugs that modulate cellular mechanisms. They focus on next-generation drug discovery using synthetic biology, high throughput chemistry, and AI/ML to target complex diseases, particularly those caused by protein misfolding.

MythicRobotics Automation

Mythic is a pioneering AI processor company specializing in analog compute-in-memory technology, which delivers significant improvements in energy efficiency and performance for edge AI applications. Their Analog Matrix Processors enable high-performance computing for various sectors, including automotive, robotics, and defense, while drastically reducing power consumption and costs.

YourChoice TherapeuticsBiotech Life Sciences

YourChoice Therapeutics is a company focused on developing innovative therapeutic solutions.

MiistBiotech Life Sciences

Miist Therapeutics is setting a new standard in acute care with inhaled therapies that work in seconds, providing instant relief through the peripheral lung.

Parallel BioBiotech Life Sciences

Using immune organoids and AI to design drugs that work in people from the start, delivering safe and effective therapies without the need for traditional clinical trials.

AdventrisBiotech Life Sciences

Adventris is a biotechnology company focusing on cancer immunotherapy.

GranzaBiotech Life Sciences

Granza Bio utilizes the discovery of 'attack particles,' a powerful suite of weapons in the immune system’s arsenal, to transform the fight against diseases such as cancers, autoimmunity, and infections.

Vitra Labs

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Research briefRead more
Refactor Capital Research Investment Thesis Refactor Capital invests in hard tech founders who are willing to commercialize real science and scale real systems. Founded by Zal Bilimoria (former a16z partner), the fund believes that the most enduring companies are created at the intersection of computation and the physical sciences. Rather than betting on incremental improvements, Refactor focuses

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