Contact CLSI: Get in Touch with Us Today

We’d be happy to speak with you more about our products, programs, membership, and mission.

CLSI MENA Address

Clinical and Laboratory Standards Institute MENA
Office Suite # 902, Level 9, Dubai World Trade Center,
P.O.Box 124752,Dubai, United Arab Emirates

CLSI Address

Clinical and Laboratory Standards Institute
950 West Valley Road, Suite 2500
Wayne, PA 19087 USA

Please send payments to:

CLINICAL AND LABORATORY STANDARDS INSTITUTE
PO Box 645766
PITTSBURGH, PA 15264-5255

Please send overnight courier payments to:

PNC Bank C/O CLINICAL AND LABORATORY STANDARDS INSTITUTE
Lockbox Number 645766
500 1ST AVE
PITTSBURG, PA 15219

Phone Numbers

P: +971 4 311 6357
P: +1.610.688.0100
F: +1.610.688.0700
Toll Free (US): 877.447.1888
Customer Service phone hours
8:30 AM–5:00 PM Eastern (US) Time