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Legal expertise that understands your business

Legal expertise that understands your business
About us

Mayne Wetherell are experts in corporate, finance and tax law. We advise on significant and complex business transactions, creating opportunities and driving successful outcomes for our clients.

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What we do

Comprehensive legal services across practice areas and industries

Banking and finance

We structure financing arrangements that work commercially, from acquisition facilities to complex restructuring.

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Capital raising

Mayne Wetherell’s capital raising practice delivers strategic, commercially grounded advice across the full spectrum of equity and debt funding.

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Corporate advisory

Mayne Wetherell’s corporate advisory team is a trusted partner to New Zealand’s leading corporates, investors and boards.

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Debt capital markets

Mayne Wetherell has a market-leading debt capital markets practice, advising New Zealand issuers on their debt-raising transactions.

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Financial services regulation

Mayne Wetherell draws upon a depth of experience to advise across all aspects of New Zealand’s regulatory compliance, licensing and consumer protection legislation.

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Infrastructure

New Zealand’s infrastructure pipeline is expanding and the stakes have never been higher.

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Leveraged finance

Mayne Wetherell partners with sponsors, borrowers and lenders on complex, high-stakes leveraged transactions where layered capital structures and bespoke mechanics are central to the deal.

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Mergers and acquisitions

Mayne Wetherell’s M&A practice is trusted on New Zealand’s most complex and strategically significant transactions.

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Overseas investment

Mayne Wetherell advises on New Zealand’s most complex and strategically significant inbound investments.

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Private capital

Private capital encompasses the entire capital stack from ordinary equity to debt and in between.  Private capital transactions demand speed, discipline and flawless execution.

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Private client and family office

Mayne Wetherell acts for family offices and high-net-worth investors on strategic investments, capital deployment and governance matters. 

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Real assets

Real assets demand long-term thinking and sector-specific insight.

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Restructuring and insolvency

Mayne Wetherell is the trusted advisor for lenders, investors, corporates, and insolvency practitioners navigating complex restructuring and insolvency matters.

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Securitisation and structured finance

Mayne Wetherell’s structured finance and securitisation practice stands at the very top of the New Zealand market.

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Tax

Mayne Wetherell advises on all types of New Zealand direct and indirect taxation.

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Tax controversy

Mayne Wetherell is recognised as New Zealand’s leading tax disputes practice.

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Working with us
We have built our firm around how clients actually want to work with their legal advisers – direct access to senior expertise, commercial focus and genuine partnership from day one.

Strategic insight

We embed strategic insight, creativity and innovation into our legal advice, helping clients make better decisions and unlock opportunities, not just manage risk.

Breadth of practice  

Mayne Wetherell’s transactional practice spans Corporate, Finance and Tax. Our partners advise across a wide range of complex, multi-jurisdictional transactions and regularly act as New Zealand counsel supporting leading US, UK and Australian firms on global transactions.

Trusted partners

We take a partnership-based approach, supporting clients throughout the full lifecycle of their business. By developing close relationships and a deep understanding of our clients’ operations, we help facilitate commercial outcomes efficiently, with meaningful partner involvement.

Comprehensive support

Our specialist team brings deep experience, a proven track record and the ability to respond quickly to large-scale and time-critical transactions.
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The people behind the work

Our strength lies in our people. All client work goes directly through experienced partners who bring both technical excellence and genuine commitment to understanding your business. Get to know the team and find the right expertise for your needs.
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Latest insights

Keep up to date with us

Stay informed with our latest firm news, legal perspectives and insights on global business change.
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Celebrating promotions across the Mayne Wetherell team
December 12, 2025
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Court of Appeal releases its decision in Hoban v Attorney‑General
December 9, 2025
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Advising Watercare on major financing milestones
December 5, 2025
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Launching Extraordinary Pay for our team
December 1, 2025
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Supporting emerging talent in M&A
November 27, 2025
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