To find a company’s ACN in Australia, begin with the official ABN Lookup search. Search the legal name shown on the relevant invoice, contract or purchase order, then compare the result with the document in front of you. If you need more than a basic identity check, move to ASIC’s company and organisation registers.
A register result is useful, but its purpose is narrow. It can help identify the legal entity you are dealing with. It is not a credit check, proof that someone can sign a contract, or a full legal and commercial due-diligence process.
Quick answer
- Search the company name, ABN or ACN in ABN Lookup.
- Match the legal entity name and identifiers to your source document. Do not rely on a similar trading name.
- Use ASIC’s official register page when you need company-register information beyond the initial ABR check.
- Consider a paid ASIC extract only after deciding the specific question it needs to answer.
- For a material transaction, add the other checks appropriate to the risk, such as credit, authority, security or legal checks.
What is an ACN?
An Australian Company Number, usually called an ACN, is a nine-digit identifier issued by the Australian Securities and Investments Commission when a company is registered. It identifies the registered company, rather than its marketing name or a particular director.
That distinction matters. A business can trade under a name that is different from the name of the company entering a contract. A search should therefore start with the exact legal name printed on the agreement, invoice, order or other controlling document.
ACN and ABN are different identifiers
An ACN identifies a registered company. An Australian Business Number, or ABN, is a separate identifier used by an entity in dealings with government, the tax system and other businesses. A company may have both.
When checking a counterparty, use the identifiers together with the legal entity name. A matching brand name on a website or invoice is not enough on its own.
How to find a company’s ACN by name
1. Open the official ABN Lookup search
Go to ABN Lookup. This is the best first official destination when you need to find an ACN by company name or verify public ABN information.
Use a current official search rather than an old directory entry or a search-engine snippet. Public records and business details can change.
2. Search the full legal name
Enter the name exactly as it appears on the document, including the company suffix where available, such as Pty Ltd. If you already have an ABN or ACN, searching with the number is usually more precise than using a name alone.
If the name appears to be a trading name, ask the counterparty to confirm the underlying legal entity before relying on it for a payment, contract or settlement decision.
3. Compare every plausible result
Similar company names can refer to different entities. Compare the spelling, entity type and identifiers with your paperwork. Look for a complete match rather than selecting the first result that feels familiar.
For example, imagine a supply agreement names Harbour Equipment Pty Ltd. That is a fictional example. A careful buyer would search the exact legal name, then compare the returned identifiers against the agreement and invoice. If the invoice only displays a brand name or the records do not match, the buyer should pause and ask for clarification.
4. Record what you checked
For an internal supplier or customer record, note the date, official source, search term, legal entity name and identifiers you matched. If there is a discrepancy, record the follow-up action instead of silently replacing the information.
What ABN Lookup can and cannot tell you
ABN Lookup is useful for an initial identity check. Depending on the current public record, it may help you:
- find an ACN or ABN associated with a name;
- compare a legal entity name with your document;
- distinguish between similar search results;
- check public registration details; and
- keep an audit trail of the source and date of your search.
It does not establish whether a business is creditworthy, authorised to enter a particular agreement, solvent, free of disputes or a suitable counterparty for a high-value transaction. Those questions require different evidence.
When to use ASIC’s company register
ASIC’s company and organisation registers are the next official destination when ABR Lookup does not answer your company-specific question.
The ASIC register may be appropriate when you need to:
- check company-register information rather than public ABN information;
- clarify a mismatch found in the initial search;
- support a material contract, credit or settlement process;
- obtain information requested by an accountant, lawyer or credit adviser; or
- see whether a current paid extract or document is relevant to a defined question.
Start with the information available without charge. If you need deeper information, read ASIC’s current product descriptions before spending money on an extract. The right record depends on what you are trying to establish.
What is an ASIC company extract?
An ASIC company extract is a paid register product that provides more detailed company information. It is useful only when it helps answer a specific question. Before ordering one, write down:
- the company you are checking;
- the decision the information will support;
- the fact, event or history you need to investigate; and
- whether a qualified adviser should help interpret the result.
Do not assume every extract contains the same information or that an extract completes your due diligence. Confirm the current product scope, access method and price directly with ASIC before you buy.
A practical verification checklist
Before relying on a company search in a business decision, work through these checks:
- Legal entity: Does the exact company name match the contract or invoice?
- Identifiers: Do the ACN and ABN, where relevant, match the same legal entity?
- Current record: Have you noted the status and date of the official search?
- Purpose: What decision will rely on this information, and what is the cost of being wrong?
- Gaps: Do you also need confirmation of signatory authority, a credit check, a PPSR search, legal advice or settlement evidence?
The depth of checking should match the risk. A free search may be enough to correct an internal record. A property settlement, acquisition, large supply agreement or credit decision can call for more investigation and professional advice.
Finding an ACN is not complete due diligence
A company search answers an identity question. It does not answer every commercial question. A broader review may need to consider the contract, the authority of the person signing it, security interests, property, payment risk, licences, disputes or insolvency concerns.
If timing is tight before a settlement or commercial milestone, do the official register check promptly and investigate any mismatch. A registry search does not extend a deadline or resolve a contractual, tax or legal obligation.
For a separate, defined business-purpose funding need, EquityTap can assess whether property-secured finance may be suitable. This is not a substitute for legal or commercial due diligence, and any funding remains subject to assessment, suitable security, valuation, legal requirements and a credible exit strategy.
Frequently asked questions
Can I find an ACN by company name?
Yes. Start with ABN Lookup and search the complete legal name where possible. Review all plausible matches before relying on a result.
Is an ACN the same as an ABN?
No. An ACN is issued to a registered company by ASIC. An ABN is a separate business identifier. A company can have both, so compare each identifier with the same legal entity.
Is ABN Lookup free?
ABN Lookup is a public search service. Check the live service and its current functions when conducting a search.
When do I need an ASIC company extract?
A paid extract may be useful when you need more detailed official company information for a defined, material decision. Review ASIC’s current product descriptions first, and obtain advice where the information needs legal or commercial interpretation.
Does an ACN search show whether a company is creditworthy?
No. An ACN or ABN search helps identify a record. Assessing creditworthiness requires separate information and analysis that is appropriate to the transaction.
Sources and further reading
- Australian Business Register: ABN Lookup
- ASIC: Company and organisation registers
- ASIC: Australian Company Number guidance
This guide is general educational information. Government registers, products, fees and functions can change. Confirm current details with the official source and obtain appropriate legal, accounting or commercial advice for a material decision.
Next step
See If You Qualify to discuss the business purpose and the information available. Any eligibility, terms, costs or timing depend on assessment.