Development tool
Due DiligenceFreeCompanies Office NZ — Company & Director Search
Free public register of every NZ company. Background-check every counterparty.
By James Guilford · Last reviewed 2026-05-30
The Facts
The Companies Office is the New Zealand business register operated by the Ministry of Business, Innovation and Employment (MBIE). It holds the public record for every registered NZ company including directors, shareholders, registered office, constitution where filed, annual returns, and the financial accounts of large or public-interest companies. The register is free to search, with results returned in seconds. The Companies Office also operates the registers for limited partnerships, incorporated societies, and overseas-registered companies. The site links to related registers — Personal Property Securities Register (PPSR), Disqualified Directors, and the Insolvency Register.
A Developer's Take
Free counterparty DD that most developers don't know exists. Companies Office NZ is the government register of every NZ company, director, shareholder, and registered charge. Free to search. Updated daily.
Before you contract with a builder, supplier, lender, vendor, or anyone you're putting money on the line with, run their entity through Companies Office. Five minutes, no login.
What to look for:
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How long has the company existed? Newly formed (under 2 years) on a large contract is a flag.
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Who are the directors? Have they been directors of liquidated companies? The register shows current and prior directorships across NZ.
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Shareholding structure. Is the contracting entity the trading entity, or a thin shell with no assets?
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Registered charges. Banks and lenders register charges over company assets. Heavy charges from non-bank lenders can indicate a stretched balance sheet.
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Annual return status. Companies that haven't filed annual returns are non-compliant and can be struck off.
The other use: vendor DD on property deals where the seller is a company or trust. The Companies Office register tells you who the directors and shareholders actually are. The PPSR (Personal Property Securities Register, separate but related) tells you what security interests are registered over the entity's assets.
For builders and trade suppliers specifically, also check whether they're members of Master Builders or NZ Certified Builders. Both register their members publicly. Membership isn't a guarantee of quality but lack of membership for a builder claiming to do volume work is worth noting.
If you see a developer or counterparty with lots of liquidated companies it's good to try and understand why. Are they named as past projects you can see on their website? If so, this is typically because banks don't lend to developers with potential ongoing liability. Are there more liquidated companies than what the projects tab on their website indicates? Perhaps they've run into issues before. Who are the common directors this person partners with? Are there associated companies that may provide context to the wider business relationships? This process can seem menial but it's important to ask smart questions. Even if they can't be answered.
When to use this
Search the Companies Office on every counterparty before signing anything. Vendors, buyers, contractors, joint venture partners, agents. A two-minute search reveals director track records, shareholder changes, recent registrations, and patterns of company churn that flag risk. If you're acquiring a property held in a company, the share register tells you who really benefits. If you're contracting a builder, the director history tells you whether they've quietly walked away from previous companies.
Quick facts
| Type | Public business register |
| Provider | MBIE |
| Cost | Free |
| Format | Web search, downloadable extracts |
| Coverage | All NZ companies, partnerships, societies |
| Update cycle | Real-time |
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