The Drug Detection Agency (TDDA)

Services | Warkworth


The Drug Detection Agency (TDDA)
PO Box 101-612, ,
North Shore, 0745

Open times



Here at the North Harbour branch of The Drug Detection Agency (TDDA) we are the complete solution provider for all workplace drug and alcohol management plan - including policy design, education and testing needs. Our end-to-end services provide our clients with a level of comfort in relation to creating a safer workplace together.

TDDA started in 2005, and was conceived in order to supply a specialised service to companies that were conducting workplace drug and alcohol testing or looking at doing so within their own organisation.

Our team is extremely knowledgeable about the illicit drug industry and its negative effects. With over 10 years of operation TDDA has forged an excellent reputation with our clients through our world-class services.

TDDA has gone on to have each of our 24 offices around New Zealand independently accredited by IANZ under ISO 15189. Making TDDA the only truly nationally accredited organisation throughout New Zealand. We now have a total coverage of Australia as well.

When you deal with TDDA you can be confident you are getting services that offer superior methodology, an adaptable attitude, people who genuinely care about what they do and internationally recognised standards of quality.

We are pleased to announce the opening of a new office in Warkworth in early May this year.  Full details will be communicated when finalised.