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Sarah Mathieson
BCom LLB(Hons) • Auckland
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Sarah is a specialist corporate lawyer, with experience in mergers and acquisitions, private equity, venture capital and strategic arrangements.
She advises international and domestic clients on acquisitions, divestments and other corporate and commercial matters. Sarah has extensive expertise advising financial investors and works across a broad range of sectors.
Sarah returned to Simpson Grierson in 2026 after six years working in London for international law firm CMS. During her time in London, Sarah also spent time on secondment at Legal & General (a FTSE 100 company).
Work Highlights
United Trust Bank
A leading UK specialist bank, on a minority investment from private equity firm Warburg Pincus.*
An Indian Premium League cricket franchisee
On a number of strategic transactions.*
Clearscore
A credit marketplace business, on its US$200 million investment from financial investor Invus Opportunities.*
Ametek
A NYSE listed manufacturing company on various transactions, including its acquisition of Alphasense.*
Fidelity International
On the sale of Fidelity’s unit-linked Section 32 pension block (c. 40,000 policy holders, c. £2.2bn of assets) and a block of 1,000 annuities.*
Phoenix Group
A FTSE 100 company on its policy outsourcing arrangements with WIPRO.*
Management team of Dishoom
A restaurant group on an investment by leading global consumer focussed investment firm L Catterton.*
Legal & General
A FTSE 100 company on M&A and corporate venture activity, including investments in ESG focussed technology start-ups.*
Equinor
A Norwegian multinational energy company on corporate venture activity.*
The Administrators of Rowanmoor Personal Pensions
On the sale of its pension business to Alltrust Services.*
* Denotes overseas experience prior to joining Simpson Grierson
