Circumference is a team of laboratory specialists founded in 2015 that focuses solely on helping implement patient testing in laboratories across the U.S. Our team has 20+ years of experience in outfitting and managing laboratories, working with CLIA and COLA, developing methods, and delivering high-quality, accurate, rapid results to our clients. We’ve processed over 41 million tests and passed over 200 audits since inception. We work with all levels of laboratory testing from POC waiver devices to high complexity molecular, toxicology, and PCR applications.






We Currently Operate In:

Our Team
Our Team

Dr. Phil Radford, PhD. - CEO and Founder

Jaclyn North - Director of Sales & Operations

Sydney Waldrup - Senior Data Analyst

Ahmed Haija - Laboratory Specialist II - MOL

Harshil Patel - Laboratory Specialist II - TOX

Angee Davis - Operations Administrative Assistant

Jasmine Wolf - Laboratory Production Associate I

Isabelle Hamm - Laboratory Production Associate I

Calvin Johnson - Molecular Applications Support

Shayla Gilbert - Operations Support Associate
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