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About CLSI


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CLSI members around the world are achieving greater accuracy, efficiency, and safety in their own laboratories while helping to improve patient care quality across the globe. Discover how.

Become a Member

Why Join CLSI? Our membership offerings bring you more options, more benefits, and more value, so you can take full advantage of the resources most relevant to you and your organization.

Select your role to explore your benefits:

Join today to receive our New Member Special Offer

Join CLSI this month and receive $100 OFF your organization’s first year of membership dues!

submit your application

For Current Members

Access Your Member Benefits and
Share Your Insights.

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Find your member resources at My CLSI, or join
the conversation at our social communities.

my clsi   clsi communities

ARUP laboratories videoDavid Grenache of ARUP Laboratories, an Industry member of CLSI, discusses why his company chose to join our organization and the value they have found.learn more about our members

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CLSI by the Numbers

active participants

countries have clsi members

standards and guidelines distributed per year, worldwide

What’s New in Membership?

  • More Options: New membership choices to better meet your needs and budgets.
  • More Benefits: Easier standards access, volunteering options, and unmatched networking.
  • More Value: Access the resources most relevant to you and your organization.


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