Join us in celebrating our 50th Anniversary!
Join us in celebrating our 50th Anniversary!

CLSI Support

For immediate assistance or support, contact CLSI by any of the methods listed below:

Phone: +1.610.688.0100
Toll Free (US): 877.447.1888
Fax: +1.610.688.0700
E-mail: customerservice@clsi.org

Submit a Question Online

If you would like to submit a question to CLSI, please fill out the following form:

Please let us know how we can help. We will get back to you as soon as possible.