Circularis Research Sites


Plant and Fungal Research

UC Davis-HM.Clause Life Science Innovation Center

28605 County Road 104

Davis, CA  95618


Synthetic Biology and Biologics Production Research

1933 Davis Street, Suite 312

San Leandro,  CA 94577


Diagnostics Research

Oakland Genomic Center

355 30th Street

Oakland, CA  94609

Leadership Team

Paul Picture
Paul Feldstein, PhD

Co-Founder & CEO

Driscoll Pic
Tom Driscoll

Chief Business Officer

LeAnn Picture
LeAnn Lindsay, PhD

Senior Scientist

Jim Lincoln148
Jim Lincoln, PhD

Senior Scientist

– 30+ Years Experience–RNA Biochemistry and ribozyme expertise
– 22 scientific publications across broad scientific disciplines
– Co-PI in $1.5million in federal grants, 1 issued patent , 2 applications, 3 provisionals
– University of California – Davis

– P&L Management & broad commercial experience
– Multiple acquisitions, divestitures, in / out licensing transactions
– Hundreds of product launches covering instruments, reagents, consumables, and drug discovery services
– Amersham-Pharmacia, Molecular Devices, Becton Dickinson, Fluxion, Transcriptic

– 30+ Years Experience as a protein biochemist, mammalian cell culture and enzymology expertise
– 34 peer reviewed scientific publications
– Co-PI in $1.5million in federal grants
– University of California – Davis

–  Plant and microbial molecular biologist
–  32 peer reviewed scientific publications
– University of California – Davis


At Circularis, our mission is to revolutionize gene expression and enable wide-scale production of biologically derived products. We enable our customers to improve the traits of organisms by discovering, analyzing and evolving transcription, RNA stability and translation control sequences. To realize our mission, we are guided by these five values:

  1. Integrity – We are open, honest, and fair with ourselves, our customers, and everyone with whom we interact. We do the right things the right way.
  2. Respect – We treat others as we expect to be treated. We embrace each individual’s unique talents and honor diverse life and work styles. We operate in a spirit of cooperation and value human dignity.
  3. Innovation – We anticipate change and shape it to fit our purposes. We identify, develop, and deploy leading edge technologies and process improvement tools.
  4. Commitment – We hold ourselves accountable to deliver on our commitments. We say what we do, and we do what we say.
  5. Collaboration – Together with our customers and partners we are stronger and can contribute more to human health. Trust, shared goals, and respect lead to greater mutual success.

Partnering with Circularis

Circularis is NOT a contract service organization, we don't want to run the same assays that you can. We bring new discoveries to our partners that improve their operations in discovery and manufacturing.

We enter into partnerships with a focus on our customers’ specific processes and optimize promoters under very specific manufacturing conditions. We enable the discovery of production tools that our customers can’t find anywhere else. Through our partnerships, we leverage our technology to create disruptive products that support biopharmaceutical drug discovery and production.​

Contact Us

Click here to let us how we can help improve your application or enable new discoveries, we'd love to discuss your application in detail.