Contact Us

Have a question about any of our online products or services? Contact Opta Online Environmental Services:

175 Commerce Valley Drive West
Markham, Ontario   L3T 7P6

tel: (905) 882-6300     Matthew Thompson x6676
fax: (905) 695-6543     Sunita Kapoor x5426
Anthony Remonde x5410
Catherine Choi x5371
Swati Prajapati x5371
Graham Durrant (tech support)