Contact AMTSO

Phone: (+1) 415-475-8472
Mailing address for general communication purposes:

Anti-Malware Testing Standards Organization Inc.
132 South State Street,
Salt Lake City, UT 84111

Registered office address for legal and official documents:

Anti-Malware Testing Standards Organization Inc.
One Montgomery Street, Suite 3000,
San Francisco, CA, 94104

To join AMTSO, please apply from our joining page.

To comment on our Standards project, please fill in the change request form.

If you’d like us to delete all information we hold on you as an individual, please send a request to

How to support AMTSO

AMTSO stands for integrity, responsibility and fairness in testing: