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CLSI is Committed to Continually Advancing Laboratory Practices!

Discover how we are striving to improve medical laboratory testing.

Learn more about our history, vision, and mission. View our Board of Directors and see open career opportunities.

About CLSI

We make the world a healthier place by helping laboratories deliver standardized high-quality test results. When laboratory testing is standardized, health care providers receive more accurate results, so patients can get well faster. Learn more about who we are and what we do.

Our 50th Anniversary

This year CLSI celebrates 50 years of making the world a healthier place. Join the celebration and learn more about how and why CLSI was formed by checking out our history, enjoying vintage CLSI photos, and reading about timely topics in public health.

Vision, Mission, & Values

CLSI’s vision, mission, and values are the driving force behind the work we do to improve the quality of medical laboratory testing. CLSI brings the worldwide medical laboratory community together to advance a common cause. Learn more.

Board of Directors

CLSI’s board of directors includes a fair and balanced representation of the health care professions, government, and industry. Learn more about the responsibilities of the CLSI Board of Directors and view their profiles to learn more about them. CLSI's strategic plan and bylaws can also be found here.


Founded in 1947, the International Organization for Standardization (ISO) is an international body composed of representatives from various global standards organizations. CLSI serves as the Secretariat of ISO Technical Committee 212 (ISO/TC 212), Clinical laboratory testing and in vitro diagnostic test systems.


Do you want to make a positive difference in the world? Consider joining our dedicated team of professionals. Advance your career while doing work you can feel good about.

Contact Us

Do you have questions about CLSI or the products and services we offer? We’d love to hear from you. Let us know how we can help.