IESO was formed in 2002 as a membership, certification
and standard making organization. Its primary membership
included residential property inspectors seeking the
latest information about identification of microbial
contamination. In less than three years, IESO attracted
more than 1,000 members and trained and certified an
equal number of Certified Residential Mold Inspectors.
2010 IESO entered into a new agreement with IAQA whereby
IESO became a wholly owned, non-profit subsidiary of
IAQA. As the
parent company, IAQA provides IESO with essential
services, staffing, facilities and funding necessary to
fulfill its mission.
This leaves IESO able to focus more of its
attention on its core mission:
the development of American National Standards.