A great fit!

Critical Path Services, LLC

knoell finally sets foot in the US with the integration of Critical Path Services, LLC (CPS), a contract research organization that offers GLP-compliant laboratory analysis, analytical consulting, technical writing, and dossier services to the regulated scientific industry. In 2013, CPS began offering regulatory services from its new office in Research Triangle Park, NC. CPS and knoell not only complement each other with their service offerings, they also share the same core values - integrity, flexibility, and passion for excellence.


Critical Path Services, LLC
3070 McCann Farm Drive
Suite 112
Garnet Valley, PA 19060
Phone: 610.558.3001
Fax: 610.558.6025

Research Triangle Park, NC

Critical Path Services, LLC
68 T.W. Alexander Drive
Alexander Business Suites
Research Triangle Park, NC 27709
Phone 610.558.3001
Fax: 610.558.6025

Carrollton, TX

Critical Path Services, LLC
2828 E-Trinity Mills Rd
Suite 206
Carrollton, TX 75006 - 2310
Phone 972.416.3400
Fax 972.416.7755

Jeff Sumpter Sales Manager, knoell USA
+1 610-558-3001 ext. 191 send mail
Dr. med. Isabelle Lang-Zwosta Global Regulatory Affairs and Business Development Medical Devices
+1 615 374 1242 send mail
Laura S. Treml, VMD, PhD Head, Veterinary Product Development USA
+1 610-457-6056 send mail