Australia's most comprehensive company archive.
From incorporation to deregistration, and everything a company did in between, we never delete a record.
What you can find
Government contracts
$12.1B
won by Thales Australia alone
1,031 Commonwealth contracts since 2025, amendment-resolved to the true final value. Search resolves every supplier this precisely.
See all federal suppliers →
Company health
327,488
companies flagged zombie, in strike-off, or GST-lapsed right now
Tracked from the exact week each status changed, not just the current snapshot.
See all distress signals →
Workforce size
165,526
staff reported by Woolworths Group alone
One of 10,066 employers with verified headcount reported to government, not just a name on a register.
See all reported headcounts →
Name history
6 names
recorded for Boeing Defence Australia Ltd alone
We keep every one, with the exact date each change was made.
Boeing Defence Australia Ltd profile →
Archive vitals
Companies
4,018,281
Every company ever registered with ASIC, from 1878 to this week. Includes proprietary companies, public companies, and foreign bodies registered in Australia.
search all →
All business entities
20,495,750
Sole traders, trusts, partnerships, and superannuation funds from the Australian Business Register. Every ABN ever issued, active or cancelled. Companies and registered trading names are searchable here; individual sole trader identities are not shown, to protect personal privacy.
Names & aliases
12,002,111
Current names, former names, and registered trading names. A company that changed its name 10 times is still findable under any of them.
Deregistered: still searchable
223,482
Deregistered companies are not deleted from this archive. Directors, creditors, and researchers can still find the full record including the date it left the register.
browse deregistered →
Zombie companies
49,373
Registered with ASIC but ABN cancelled by the ATO. Two government registers disagree about whether these entities exist.
browse zombies →
Listed companies mapped
1,782
ASX-listed companies linked to their full ASIC register history, including pre-listing name changes and the date first incorporated.
browse ASX-listed →
How this archive works
CompanyIQ ingests weekly snapshots from ASIC and the Australian Business Register, building a permanent record of every company and business entity that has ever held an ACN or ABN. Each snapshot is compared to the previous one; new registrations, deregistrations, name changes, and status transitions are recorded as dated events.
Most commercial databases suppress or delete deregistered entries. This archive keeps them. A company that ceased trading in 1992 is still here, with its name history, original registration date, directors, and the event that ended it.
Search by ACN (9 digits), ABN (11 digits), company name, former name, or trading name. Deregistered and cancelled entities are included in all searches by default.
Data sources: ASIC Company Dataset (CC-BY 3.0 AU, weekly since 2016), ABR Bulk Extract (CC-BY 4.0, periodic), WGEA Employer Dataset (annual), ACNC Registered Charities, AusTender contract notices.
Frequently asked questions
How do I check if a company is registered in Australia?
Search by company name, ACN, or ABN above. ASIC is the national regulator; a company with status REGD is currently registered. Searching by ACN (9 digits) or ABN (11 digits) gives an exact match with no ambiguity.
What does deregistered mean for a company?
A deregistered company has been removed from the ASIC register. It can no longer trade, enter contracts, or own property as a corporate entity. CompanyIQ keeps the full record for every deregistered company, including its name history, original registration date, and the date it left the register.
How do I find a company's ACN?
Every Australian company is assigned a unique 9-digit ACN (Australian Company Number) when it registers with ASIC. Search by company name above to find the ACN, or enter a known ACN directly into the search box. Former and trading names are also searchable.
What is the difference between an ACN and an ABN?
An ACN (Australian Company Number) is issued by ASIC and identifies a company specifically. An ABN (Australian Business Number) is issued by the ATO and covers all business entities: companies, sole traders, trusts, and partnerships. All ASIC-registered companies have an ACN; most also have an ABN, but some do not if they have never engaged with the tax system as a business.
What is a zombie company in Australia?
A zombie company is registered with ASIC (its ACN is active) but its ABN has been cancelled by the ATO. The two government registers disagree about whether the entity is alive. This is not rare: CompanyIQ currently tracks over 49,000 such cases. The archive flags each one rather than choosing one register over the other.
Why can't I find my own ABN?
If you are a sole trader registered under your own name, your ABN will not appear in search results. This is deliberate: the archive shows companies and registered trading names, not the personal identities of individuals. Business names and trading names linked to your ABN are searchable, even if your own name is not.
Snapshots: ASIC 7 Sep 2026 · ABR 3 Sep 2026 · WGEA 2021-22 to 2024-25 · AusTender Feb 2025 to Sep 2026
Oldest living entity: Westpac Banking Corporation, registered 8 Apr 1817, 210th year.
This week: 19,202 registered · 12,100 deregistered · 14,276 entered strike-off