Company and ABN verification.
The name on the quote may not be the legal entity.
Many builders operate under a trading name that is different from their registered business or company name. A builder quoting as "Smith Brothers Constructions" may be trading through a company called "J&M Construction Services Pty Ltd" or through a sole trader ABN in their own name.
The legal entity is what matters for contract enforcement. If a dispute arises, you need to know the correct legal name and registration type to pursue your rights through a tribunal or court. An error in the entity name on a home building claim form can delay or invalidate the claim.
The building contract itself should state the builder's full legal name, ABN or ACN, and contractor licence number. If the contract shows only a trading name with no ABN or ACN, ask for the complete details before signing.
Proprietary company (Pty Ltd)
Incorporated under the Corporations Act 2001. Has an Australian Company Number (ACN) and usually an ABN. Separate legal entity from its directors and shareholders.
Sole trader
An individual trading in their own name or under a registered business name. Has an ABN but no ACN. The individual is personally liable for debts.
Partnership
Two or more individuals or entities trading together. Has an ABN. Each partner is jointly and severally liable for the partnership's debts.
Trust (trading via trustee)
A trustee entity (often a Pty Ltd) holds assets and operates a business on behalf of a trust. The trust's ABN may differ from the trustee's ABN.
What the public registers tell you.
Legal name and entity type
ABN status (active or cancelled)
GST registration status and date
Main business location (state)
Business names registered to the ABN
Date ABN was registered
Registered company name and ACN
Company type and status (registered, deregistered)
Date of registration
Registered address
Officeholders (directors, secretaries)
Ultimate holding company (if applicable)
Company status and registration date.
An ASIC company search will show whether the company is currently registered or has been deregistered. A deregistered company has no legal existence — it cannot enter contracts, sue, or be sued. A company that has been deregistered recently may indicate it has been wound up or voluntarily deregistered.
The registration date is relevant to a company's history. A company incorporated recently may be a newly formed entity, but it may also be a new entity formed by the same directors after a previous company was liquidated or deregistered — a practice sometimes described as "phoenixing."
TrustSignal checks director history across all ASIC-registered entities for the person linked to a builder, surfacing patterns across multiple companies whether active, deregistered or in external administration.
Director links and related entities.
A building company's ASIC record names its current and former directors. Searching each director's name in ASIC Connect will reveal all other companies where that person holds or has held an officeholder role.
Patterns worth noting in the director history include:
Multiple companies in the same industry that have been deregistered
Companies where the director resigned shortly before the company was wound up
Companies that were placed into external administration while the director was an officeholder
A series of companies with similar names incorporated shortly after predecessor entities were deregistered