DUNS Number in Australia: Free Lookup and How to Get One
Australian businesses operating internationally, bidding on government contracts, or working with global supply chains will encounter the DUNS number. Issued by Dun & Bradstreet, the DUNS (Data Universal Numbering System) number is a unique nine-digit identifier assigned to business entities worldwide. This guide covers everything Australian businesses need to know about looking up, obtaining, and using a DUNS number.
What Is a DUNS Number?
A DUNS number is a nine-digit business identifier created and maintained by Dun & Bradstreet (D&B). It is used globally to identify and track over 500 million business entities across more than 200 countries. Unlike government-issued identifiers such as the ABN, a DUNS number is assigned by a private company and is primarily used for business credit reporting, supply chain verification, and procurement eligibility.
For Australian businesses, the DUNS number acts as an international passport for commercial credibility. While your ABN identifies you within Australia, the DUNS number identifies you to the global business community.
How to Look Up an Australian DUNS Number for Free
If your Australian business has been operating for any length of time, there is a good chance D&B has already assigned you a DUNS number based on ASIC records and other public data sources. Before applying for a new number, you should check whether one already exists.
Free Lookup Options
-
Use our free lookup tool: The fastest way to check is through our DUNS Number Lookup tool. Enter your Australian business name or ABN and search D&B's database directly.
-
D&B Australia website: You can also search through Dun & Bradstreet Australia (dnb.com.au) using their online lookup facility.
-
Phone inquiry: Contact D&B Australia directly at their Sydney office to request a lookup by phone.
If your business already has a DUNS number, you can begin using it immediately. If the information attached to it is outdated, you can request updates through D&B.
D&B in Australia
Dun & Bradstreet has operated in Australia for over 130 years, making it one of the longest-established business information providers in the country. D&B Australia maintains records on over 7 million Australian and New Zealand business entities, sourced from:
- ASIC (Australian Securities and Investments Commission) company filings
- ABR (Australian Business Register) data
- PPSR (Personal Property Securities Register) records
- Court judgments and insolvency records from Australian courts
- Trade payment data reported by participating businesses
- Direct business submissions and verification calls
D&B Australia is headquartered in Sydney and provides local customer support for DUNS number inquiries, credit reports, and data updates. Their Australian database feeds into D&B's global network, meaning your Australian DUNS record is visible to international partners searching for your business.
ABN vs DUNS Number
Australian business owners often ask how the ABN (Australian Business Number) relates to a DUNS number. They serve different purposes and are issued by entirely different bodies.
| Feature | ABN | DUNS Number |
|---|---|---|
| Issued By | Australian Business Register (ATO) | Dun & Bradstreet (private) |
| Legal Basis | A New Tax System Act 1999 | Voluntary commercial standard |
| Format | 11-digit number | 9-digit number |
| Mandatory | Yes, for Australian businesses | No, but often required in practice |
| Primary Purpose | Tax identification, GST, government dealings | Credit reporting, international trade, procurement |
| Geographic Scope | Australia only | Global (200+ countries) |
| Cost | Free | Free (basic DUNS number) |
| Information Held | Business name, entity type, GST status | Credit score, payment history, financials, corporate structure |
| Public Access | ABN Lookup (abr.business.gov.au) | Basic info free; detailed reports paid |
| Linked to Credit Profile | No | Yes |
Key takeaways:
- Your ABN is a legal requirement for operating a business in Australia. It is used for tax, GST, and dealings with government agencies.
- A DUNS number is not legally required but is practically necessary for international trade, U.S. government contracts, and certain Australian government procurement processes.
- They are not interchangeable. An ABN identifies you to Australian authorities; a DUNS number identifies you to the global commercial ecosystem.
- D&B links your ABN to your DUNS record, so your ABN is one of the data points in your D&B profile.
Australian businesses also hold an ACN (Australian Company Number) if they are registered companies. The ACN is a nine-digit number issued by ASIC, but it serves a different function from the DUNS number and is not recognized internationally for credit or procurement purposes.
Australian Government Procurement and DUNS Numbers
Commonwealth Procurement Rules
The Australian Government's Commonwealth Procurement Rules (CPRs) govern how federal agencies purchase goods and services. While the CPRs do not explicitly mandate a DUNS number, D&B data is widely used in the Australian government procurement ecosystem:
- Supplier due diligence: Commonwealth agencies frequently use D&B credit reports and risk assessments when evaluating potential suppliers during procurement processes.
- AusTender: Australia's central procurement information system (AusTender) does not require a DUNS number for registration, but having one makes it easier for agencies to verify your business through D&B's database.
- Defence procurement: The Australian Department of Defence and its procurement arm (CASG - Capability Acquisition and Sustainment Group) often reference D&B data during supplier qualification. Companies bidding on defence contracts should have an accurate, up-to-date DUNS record.
U.S. Government Contracts
Australian companies bidding on U.S. federal contracts or participating in joint U.S.-Australia defence programs (such as AUKUS initiatives) must register on SAM.gov, which requires a DUNS number. Given the expanding U.S.-Australia defence relationship, this is increasingly relevant for Australian defence and technology companies.
International Development and Aid
Australian NGOs and contractors participating in programs funded by USAID, the World Bank, or other international bodies often need a DUNS number as part of their registration and grant application processes.
How to Get a DUNS Number in Australia
If your lookup confirms that your business does not yet have a DUNS number, follow these steps to apply. For a more general overview, see our complete guide to getting a DUNS number.
Step 1: Gather Your Business Information
Prepare the following before starting your application:
- Legal business name as registered with ASIC or the ABR
- ABN (Australian Business Number)
- ACN (Australian Company Number) if applicable
- Registered business address and principal place of business
- Entity type (Pty Ltd, Ltd, sole trader, partnership, trust, etc.)
- ANZSIC code or description of your business activity
- Number of employees
- Annual revenue (approximate figures are acceptable)
- Name and contact details of a director or authorized representative
- Year of establishment
Step 2: Submit Your Application
Visit the Dun & Bradstreet Australia website (dnb.com.au) and locate the DUNS number request section. You can also call D&B Australia directly.
- Free application: Standard processing takes approximately 30 business days. D&B may contact you to verify details.
- Expedited application: Paid options are available for faster turnaround, typically 1-5 business days. Contact D&B Australia for current pricing.
Step 3: Verification
D&B Australia will verify your information against ASIC records, ABR data, and other public sources. They may contact you directly by phone or email to confirm details. Respond promptly to avoid delays.
Step 4: Receive and Verify Your DUNS Number
Once assigned, your DUNS number is permanent. Review the information in your D&B profile to ensure accuracy, particularly your legal name, address, entity type, and corporate family tree (parent/subsidiary relationships).
Step 5: Keep Your Record Updated
Update your D&B profile after significant business events such as changes in directorship, address changes, business name changes, mergers or acquisitions, or significant changes in revenue or headcount. Learn more about how long the DUNS process takes.
Australian-Specific Requirements and Considerations
Sole Traders and Partnerships
Australian sole traders and partnerships can obtain DUNS numbers. Unlike companies registered with ASIC, these business structures may require additional verification documentation such as:
- ABN confirmation letter
- Business name registration certificate
- BAS (Business Activity Statement) as proof of trading
- Bank statement showing the business name
Trust Structures
Australian businesses commonly operate through trust structures (family trusts, unit trusts, discretionary trusts). D&B can assign DUNS numbers to trustee entities. Ensure you apply using the trustee company's details, as the trust itself is not a separate legal entity in most cases.
Multiple Locations
D&B assigns separate DUNS numbers to each physical business location. If your Australian business has offices in Sydney, Melbourne, and Brisbane, each location may receive its own DUNS number linked in a corporate family tree. Ensure the headquarters is correctly identified as the parent entity.
New Zealand Operations
Many Australian businesses also operate in New Zealand. D&B covers both countries from their Australasian operations. If you have a New Zealand subsidiary or branch, it will receive a separate DUNS number linked to your Australian parent entity.
Common Issues for Australian Businesses
Issue 1: Outdated Information
D&B's Australian database is large, but information can become outdated, especially for smaller businesses that change addresses or directors frequently. If you find incorrect data in your DUNS profile, contact D&B Australia to request corrections.
Issue 2: Duplicate Records
Some Australian businesses end up with multiple DUNS numbers due to name changes, restructuring, or data entry errors. If you discover duplicates, contact D&B to have them consolidated.
Issue 3: Low Credit Score
Your DUNS number is linked to a D&B credit profile. If your D&B credit score is lower than expected, review the underlying data for errors in payment history, court judgments, or financial figures. Incorrect negative information can be disputed through D&B's correction process.
Issue 4: Confusion with Other Identifiers
Australia has several business identifiers (ABN, ACN, ARBN, TFN). None of these replace a DUNS number for international purposes. If an overseas partner requests your DUNS number, providing your ABN will not suffice.
Frequently Asked Questions
Is a DUNS number free in Australia?
Yes. The basic DUNS number is free to obtain through D&B Australia. Expedited processing is available for a fee if you need the number quickly.
How long does it take to get a DUNS number in Australia?
Standard processing takes up to 30 business days. Expedited processing is typically 1-5 business days for an additional fee.
Do I need a DUNS number if I already have an ABN?
The ABN and DUNS number serve different purposes. If you only operate domestically and do not need international credit reporting or procurement access, you may not need a DUNS number. However, if you trade internationally or bid on government contracts that reference D&B data, a DUNS number is practically necessary.
Can a sole trader get a DUNS number in Australia?
Yes. Sole traders, partnerships, trusts, and all other Australian business structures can obtain DUNS numbers from D&B Australia.
Does my DUNS number expire?
No. Once assigned, your DUNS number is permanent and does not require renewal. However, you should keep your business information updated with D&B.
Can I look up another company's DUNS number?
Yes. You can use our free DUNS lookup tool to search for any Australian or international company's DUNS number.
Next Steps
- Search for your DUNS number to check if D&B Australia already has your business on file
- Learn the basics of DUNS numbers if you are new to the system
- Follow our step-by-step application guide for detailed instructions
- Visit our Australia country guide for additional resources
- Find out how long the DUNS application takes and what to expect
For Australian businesses engaging in international trade, government procurement, or supply chain partnerships, a DUNS number is a foundational piece of business infrastructure. It costs nothing to obtain, takes minimal effort to set up, and provides global commercial credibility that domestic identifiers like the ABN cannot deliver on their own.