Thomas D. Willis

Chief Executive Officer at

Sequenta, Inc.

Health Technology

Consumer Services

Commercial Services

Profile

Thomas D.
Willis was the founder of ParAllele BioScience, Inc. since 2001, serving as Chief Scientific Officer from 2001 to 2013.
Dr. Willis is the founder of Sequenta, Inc. since 2007, serving as Chief Executive Officer.
Current jobs include Chief Executive Officer at Arima Genomics, Inc. since 2025 and Venture Partner at IIF Management Co. LLC since 2017.
Former jobs include Director at Boreal Genomics, Inc., Director at SpinX Technologies SA, Vice President-DNA Product Marketing at Affymetrix, Inc. in 2007, and Principal at Stanford Genome Technology Center from 1996 to 2013.
Education includes graduate and doctorate degrees from Stanford University and an undergraduate degree from Yale University.

Thomas D. Willis active positions

Companies	Position	Start
Sequenta, Inc. Sequenta, Inc. BiotechnologyHealth Technology Operates as a biotech company which discovers and develops clinical diagnostics based on immune system status	Chief Executive Officer	2010-08-17
IIF Management Co. LLC IIF Management Co. LLC Investment ManagersFinance Illumina Ventures invests in companies located in the United States. The firm focuses on companies operating in the fields of life science tools, diagnostics, therapeutics, digital health and sustainability sectors. It provides financing for early stage capital requirements.	Private Equity Investor	2016-12-31
Arima Genomics Inc. Arima Genomics Inc. BiotechnologyHealth Technology Engages in research, development and testing of cancer diagnostics	Chief Executive Officer	2025-06-16

All active positions of Thomas D. Willis

Former positions of Thomas D. Willis

Companies	Position	End
SpinX Technologies SA SpinX Technologies SA Medical SpecialtiesHealth Technology Develops and manufactures laboratory equipment	Director/Board Member	2010-08-11
AFFYMETRIX, INC.	Sales & Marketing	2006-12-31
Boreal Genomics, Inc. Boreal Genomics, Inc. Medical SpecialtiesHealth Technology Develops and markets DNA and RNA purification, enrichment, and detection equipment and tools	Chairman	-
Stanford Genome Technology Center	Corporate Officer/Principal	-
ParAllele BioScience, Inc. ParAllele BioScience, Inc. Miscellaneous Commercial ServicesCommercial Services Develops biochemical processes to analyze variations in the human genome	Chief Executive Officer	-

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Linked companies

Private companies	10
Affymetrix, Inc. Affymetrix, Inc. Medical SpecialtiesHealth Technology Develops, manufactures and sells products and services for genetic analysis	Health Technology
ParAllele BioScience, Inc. ParAllele BioScience, Inc. Miscellaneous Commercial ServicesCommercial Services Develops biochemical processes to analyze variations in the human genome	Commercial Services
Sequenta, Inc. Sequenta, Inc. BiotechnologyHealth Technology Operates as a biotech company which discovers and develops clinical diagnostics based on immune system status	Health Technology
Boreal Genomics, Inc. Boreal Genomics, Inc. Medical SpecialtiesHealth Technology Develops and markets DNA and RNA purification, enrichment, and detection equipment and tools	Health Technology
Stanford University Stanford University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
Yale University Yale University Other Consumer ServicesConsumer Services Functions as a College/University	Consumer Services
SpinX Technologies SA SpinX Technologies SA Medical SpecialtiesHealth Technology Develops and manufactures laboratory equipment	Health Technology
Stanford Genome Technology Center
IIF Management Co. LLC IIF Management Co. LLC Investment ManagersFinance Illumina Ventures invests in companies located in the United States. The firm focuses on companies operating in the fields of life science tools, diagnostics, therapeutics, digital health and sustainability sectors. It provides financing for early stage capital requirements.	Finance
Arima Genomics Inc. Arima Genomics Inc. BiotechnologyHealth Technology Engages in research, development and testing of cancer diagnostics	Health Technology