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About CLSI


Find the Latest in CLSI Membership

Learn more about your fellow members and the opportunities available through CLSI.

The strength of CLSI begins with our members, and we thank you for taking part in our vision of improving the quality of laboratory testing to advance the quality of patient care around the world.

For Our Members

View the Events Calendar

See our newest educational opportunities like webinars and workshops, and find out where to meet up with CLSI at upcoming conferences and tradeshows.

Launch Calendar

Access the CLSI Membership Directory

Find contact information for any of our 2,000+ member organizations.

View Directory

Use the CLSI Submission Box

Have a question or suggestion for CLSI? We’d love to hear your ideas and thoughts on things we can do to make your membership experience even more beneficial.

Submit Now

Member Spotlight

If you have a video you’d like to submit to be featured, please e-mail us at

david grenache on membership David Grenache of ARUP Laboratories discusses why his company chose to join CLSI, and the unique value they have found as members.
andy quintenz on membership Andy Quintenz of Bio-Rad Laboratories speaks to how, through membership, his organization can now make a positive impact on the standards that CLSI develops.

If you have any additional questions or needs, please contact the Membership Department at 610.688.0100 or

renew your membership


The Key to Quality™

The Fundamentals for Implementing a Quality Management System (QMS) in the Clinical Laboratory

Learn More


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