IEST is the only organization that exclusively serves professionals in the fields of contamination control, environmental test and reliability, and nanotechnology facilities. We are dedicated to advancing the knowledge of the environmental sciences and technology community by sharing our recognized global expertise in cleanrooms and controlled environments. 

Our multidisciplinary membership comes from all areas of the controlled environment community, including defense and aerospace, biotechnology, mechanical and industrial engineering, electrical & electronic manufacturing, consultants, academia, chemists, scientists, and others.  Connect with IEST to access training, resources, knowledge, and a professional network of experts working together to help each other advance in their careers and the profession as a whole.


Renew Today. 
IEST Memberships expire April 30, 2022. Renew Your Membership


Choose the membership category that's right for you: Whether you are a professional with years of experience, new to the industry, or still a student - IEST offers a number of memberships to fit your specific needs:

Individual Membership 
Available to all professionals actively engaged in a field related to IEST. 
Annual Dues: $210

Young Professional Member  
Available to any graduate of a college or institution (within the last two years) or currently a master's degree student with less than two years of industry experience. A copy of diploma, degree, or certificate is required for recent graduates. A copy of student ID and course schedule is required for master's degree students.
Annual Dues: $90

Student Member 
Available to any student attending 12 or more hours of courses and not employed full-time. Copy of student ID and course schedule is required.
Annual Dues: $30

Download Print Application
Download Dues Support Letter Template


  • Access IEST Expertise. IEST has been developing environmental test and contamination control guidelines since our founding in 1953. By becoming a member, you will have access to leading experts, networking tools and research that help our industry safeguard people, products, and processes.
  • Influence + Impact Your Field. IEST is an ANSI-accredited standards developing organization and welcomes professionals of all experience levels to shape the guidelines and best practices that affect how we do our jobs. By getting involved with IEST, you and your company can immediately contribute to the development of standards and recommended practices.
  • Receive Exclusive Resources + Discounts. IEST has been training the workforce for more than 50 years. The need for fundamental knowledge and proper training is a common request among industry employers. When you join IEST, you save on the education, publications, and career services you need to avoid errors and advance professionally.


IEST serves a network of more than 7,000 individuals located in 40+ countries.   The average IEST member has more than 16+ years of experience in the industry.

Who do IEST Members work for? 
Download the list of companies.

An IEST membership belongs to the joining member. Only the individual member can use the benefits of membership. These benefits cannot be transferred or used by other individuals, even within the member’s organization. Membership dues are non-refundable and transferable. Membership transfers require the member’s permission.   

The IEST membership period runs on a fixed billing cycle: May 1 - April 30 for all members. Incoming members pay the full annual dues rate at the time of application. Upon renewal of membership, IEST will prorate member dues for the unused months. The prorated amount will apply only if the membership is renewed. No refunds will be given.



About IEST
IEST is a non-profit technical society and ANSI-accredited standards-developing organization; Secretariat of ISO/TC 209 Cleanrooms and associated controlled environments; Administrator of the ANSI-accredited US TAG to ISO/TC 209; and a founding member of the ANSI-accredited US TAG to ISO/TC 229 Nanotechnologies.

The support and participation of IEST members and partnering organizations allows us to:

  • Drive IEST’s work on cornerstone standards; we provide expert support for the evolving MIL-STD-810, oversee the ISO 14644 Standards Series as the Secretariat to ISO/TC 209, and lead the conversation on nanotechnology facilities best practices.
  • Back the volunteer experts who write, and keep current, IEST Recommended Practices.
  • Train and advance the environmental sciences and technology community through IEST education, peer-reviewed research, conferences, and support services. 

Chapter Organizations
For additional networking, members may designate a chapter affiliation during the membership application or renewal process.
IEST chapter locations.

Voluntary Contributions
Individuals may also submit a tax deductible donation in support of IEST scholarships, training or standards development.
Make a donation. 

Request Information
Access our help center for more information, or submit an inqury via contact form and a member of our team will respond.
Help Center.

Partners Make IEST possible

Corporate Sponsors allow IEST to fulfill our non-profit mission of advancing industry knowledge and contribution to world progress. Click here to learn more about these vital companies and the benefits of working with them.