Circularis Research Site

2945 Webster Street

Oakland,  CA 94609

Leadership Team

Paul Picture
Paul Feldstein, PhD

Co-Founder & CEO

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


– 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.

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.