Where does Steve Gillis work?

Steve Gillis is Board director at hC Bioscience and Board director at Skylark Bio and Board director at Pheast Therapeutics.

What check size does Steve Gillis write?

Steve Gillis typically writes checks of $50K – $150M.

What boards does Steve Gillis sit on?

Steve Gillis holds tracked board seats at Basking Biosciences, Skylark Bio.

Steve Gillis

Investor

Board director at hC Bioscience · Board director at Skylark Bio · Board director at Pheast Therapeutics

Seattle, Washington

Writes $50K – $150M checks · typically $25M

About

Steve Gillis is an immunologist-turned-VC who founded Immunex and Corixa, helped develop Enbrel, and leverages roles at Takeda and early-stage biotech boards to bridge science and pharma operations.

Contact· self-published, not guessed

s•••@archventure.comreveal

Likely email· guessed from name + firm domain, not firm-published

s•••@archventure.comreveal100% confident

Invests in

AI & Machine LearningBiotechDeep TechHardwareHealthtechMedical Devices

Board director at hC Bioscience

Intro paths

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In turn, Steve can intro founders to hC Bioscience's investors below.

hC Bioscience's investors · 4

8VCAustin · $100K – $50M checks ARCH Venture PartnersChicago · $50K – $250M checks Taiho Ventures, LLCMenlo Park Takeda VenturesCambridge · $1M – $5M checks

Co-founders at hC Bioscience

Leslie J WilliamsExecutive Officer, Director

Board director at Skylark Bio

Intro paths

→

In turn, Steve can intro founders to Skylark Bio's investors below.

Skylark Bio's investors · 1

ARCH Venture PartnersChicago · $50K – $250M checks · since 2022

Board director at Pheast Therapeutics

Intro paths

→

In turn, Steve can intro founders to Pheast Therapeutics's investors below.

Pheast Therapeutics's investors · 2

ARCH Venture PartnersChicago · $50K – $250M checks · since 2025 Catalio Capital Management, LPNew York · since 2025

Co-founders at Pheast Therapeutics

Irv WeissmanCofounder, Scientific Advisor, Board Director

Ravi MajetiCofounder, Scientific Advisor, Board Observer

Amira BarkalPrincipal Founder, Scientific Advisor, Board Director

Roy MauteCofounder & Chief Executive Officer

Experience

ARCH Venture PartnersManaging Director

Deals · 1

Skylark BioBoard seat

via ARCH Venture Partners · filed Apr 2024 · $40.9M raise

Attribution from SEC filings, press coverage, and firm rosters.

Other disclosed investments

Board seats

Basking Biosciences

Per SEC Form D filings.

Network1

Dave Maki

Managing Partner at Altitude Ventures Management, Llc

Investors connected to Steve in public investor directories — a warm-intro map.

Frequently asked questions

Who is Steve Gillis?: Steve Gillis is an immunologist-turned-VC who founded Immunex and Corixa, helped develop Enbrel, and leverages roles at Takeda and early-stage biotech boards to bridge science and pharma operations.
Where does Steve Gillis work?: Steve Gillis is Board director at hC Bioscience and Board director at Skylark Bio and Board director at Pheast Therapeutics.
What does Steve Gillis invest in?: Steve Gillis invests in AI & Machine Learning, Biotech, Deep Tech, Hardware, Healthtech, Medical Devices.
What check size does Steve Gillis write?: Steve Gillis typically writes checks of $50K – $150M.
What boards does Steve Gillis sit on?: Steve Gillis holds tracked board seats at Basking Biosciences, Skylark Bio.