For all other questions please contact

How do I become a Thiess Supplier?

As a preference we select suppliers locally, nationally and then internationally. The group supply chain team targets those categories of spend that have applicability to multiple business units and runs a robust evaluation process. Corporate suppliers are selected based on our priorities and a view towards a long term relationship. Project suppliers tend to be selected on a fixed term basis for products or services with a specific or specialised local need.  To become a supplier, please register your interest online. 

If we already provide services or products to Thiess should we still register?

The team has likely already categorised your offering and has entered this into our database.  It is not necessary for you to register again, however if your business range or other details have changed, it is a good idea to register and update us.

What should we do if we have an offer that Thiess simply must see?

Please send an e-mail to  describing the situation. This e-mail is reviewed daily and funnelled to the relevant category manager for assessment.

Do we need to supply our products or service to all Thiess to be considered?

No.  Thiess uses a combination of local and national suppliers.


I cannot start the registration process?

Please contact

My registration will not go through due to some technical problem?

Be sure ALL required information has been entered. Only complete online profiles will be accepted. If all required fields have been populated, please mail to to report your problem. Include any error message you receive.

How do I know when I am registered in Thiess' system?

You will receive an email confirmation notice once you have successfully submitted your online registration.

Can more than one person register from the same company?

Yes, more than one person can register within the same company.

Who has access to my information?

Your company information will be made available to CIMIC Group employees as required for the supplier evaluation and in accordance with our privacy policy.

Can I save a partially completed registration?

No, you must complete all required information and "submit" for your registration to be successful.

What do I do if I can't find my product or service listed in the CATEGORY section?

Go to the UNSPSC website  and search for your category that best fits the goods or services supplied by your organisation. Once you have found it you must enter both the UNSPSC ID and the UNSPSC Name.

I was part way through my registration and lost power/access – do I start over?

Yes, you will need to start over.

Do I have to have an ABN to register?

If you are an Australian supplier, you need an ABN number to register.

Is there a cost to register?

No, there is no charge to register as a supplier.

After we have registered, what’s next?

Thiess independently schedules sourcing events based on demand or changes to the market.  By registering with us your company name will be entered into our database and reviewed when we next go to market for that category.