Clinical and Laboratory Standards Institute Corporate Profile
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Clinical and Laboratory Standards Institute


The Clinical and Laboratory Standards Institute (CLSI) is setting the standard for quality in clinical laboratory testing around the world. A not-for-profit membership organization, CLSI brings together the global laboratory community for advancement of a common cause: fostering excellence in laboratory medicine.

For over 40 years, our members, volunteers and customers have made CLSI a respected, transformative leader in the development and implementation of clinical laboratory testing standards. Through our unified efforts, we will continue to set and uphold the standards that drive quality test results, enhance patient care delivery and improve health care around the world. CLSI distributes more than 75,000 standards worldwide each year.

At A Glance


Clinical and Laboratory
Standards Institute
950 W. Valley Road, Suite 2500
Wayne, PA 19087
Phone: (610) 688-0100
Fax: (610) 688-0700


Standards, companion products, webinars, workshops, certificate programs, document competency quizzes, symposia, training

Chief Executive Officer

Glen fine, MS, MBS, CAE

Senior Vice President Operations

Luann Ochs, MS

Vision: Quality practices for better health.

Mission: Develop clinical and laboratory practices and promote their use worldwide.

Why Use CLSI Consensus Standards?

We have an array of standards that span nine main subject areas. By using CLSI standards, you save time and costs while improving process quality, speeding the development of standard operating procedures and implementing safer practices with greater ease and efficiency. CLSI Companion Products related to the standards are available to improve the ease of use of standards.

CLSI has a hierarchy of committees that oversee the development of our consensus standards. What’s unique about CLSI is that all of our committees have a balanced consensus body, which means that each of the three constituencies—government, industry and professional representatives—has an equal say when approving documents for publication.

Pharmacists—eM100 comes in a version just for you!

eM100™ is an easy-to-use interactive, searchable database for drug selection, interpretation and quality control procedures.

eM100 is an interactive, searchable database for drug selection, interpretation and quality control procedures. It is based on CLSI’s widely recognized AST standard M100-S23—Performance Standards for Antimicrobial Susceptibility Testing; Twenty-Third Informational Supplement. The database can help you work more efficiently by providing the latest recommendations for detecting emerging resistance in an easy-to-use format. You’ll find only the information you need to make informed patient recommendations. Membership discounts apply. If you already own M100-S23, you will receive an additional 50% off your member price for your 2013 eM100 subscription!

Why Volunteer With CLSI?

CLSI’s widely recognized standard M100-S23—Performance Standards for Antimicrobial Susceptibility Testing; Twenty-Third Informational Supplement.

Take part in developing standards that apply to the work you do each day. By donating your time and talents to improve the standards that affect your own work, you will play an active role in improving health care across the globe. Gain recognition from CLSI, your organization, your colleagues and your community by enriching your career and resumé through your contributions.

Clear Guidance on How To Improve Laboratory Practices

Through CLSI’s educational resources, one can learn directly from the experts who developed the standards to implement those technical documents in his or her laboratory and improve quality. Enhance comprehension and use of CLSI standards and earn P.A.C.E.® continuing education credits along the way. Educational opportunities include webinars, document competency quizzes and certificate programs. Participate in webinars related to AST standards, quality management and upcoming CLSI standards. All our educational offerings can be found on our website at​education-programs.

Why Join CLSI?

CLSI members have access to a network of more than 2,000 influential organizations across the global laboratory community. Members can receive up to 70% off the cost of CLSI documents, educational programs and companion products. Along with our revised membership levels and categories, this year we have introduced individual memberships! If you are interested in learning more about CLSI membership, email us at

Raise your standards for excellence with the help of CLSI.

This corporate profile was reviewed and approved by Clinical and Laboratory Standards Institute.