Contact OnMaterials

To find out how we can partner with you to achieve cost effective and successful project completion, or to find out more about our products and services, please call or email today.


1533 Simpson Way

Escondido, CA 92029

Telephone / Fax: 760-306-3255


John Freim III, Ph.D, President:

James Harvey IV, Field Srvs. Engineering Manager:

Diane Freim, Business Manager:

For sales in EPA regions 1,2, & 3 please contact Mark Kluger: