About Us

The Drug Detection Agency

Our Mission

To protect the girl on the bike

Our Vision

Creating drug-free environments

Who we are

The Drug Detection Agency (TDDA) was established in 2005 to provide New Zealand and Australian businesses with end-to-end workplace substance testing, education, and policy services. TDDA is a leader in workplace substance testing with more than 300 staff, 90 mobile health clinics, 65 locations throughout Australasia, and processing more than 250,000 tests annually.

Accreditation

TDDA holds ISO17025 accreditation for workplace substance testing in both Australia and New Zealand, ensuring its operations meet rigorous international standards in quality management and competence. Please refer to the IANZ and NATA websites for TDDA’s full accreditation details.

Our leadership →

TDDA are fantastic, the team there are very helpful when you are getting started and trying to implement new Drug and Alcohol polices, they helped us and I don’t know where we would be today without their help.

Their service is second to none: they make the staff feel comfortable when completing the drug testing they are very informative to all staff and management but at the same time the testing is very confidential. They have the ability to drug test on site, off site and any time of the day which makes it so easy for us. What a fantastic team!!!!!

Shantee Palmer
Operations Manager
Natural Insulation Northland