Expertise

  • High value lending
  • Restructuring
  • Non-bank lending
  • Structured financial advice

Related Sectors

Career & Experience

Katie has spent just under 15 years at City firm Simmons & Simmons, gaining experience working on high value lending transactions, acting for UK and international syndicates of banks on a secured and unsecured basis, as well as advising corporate borrowers – whether on general financings or in restructuring situations. Whilst there she spent time on secondment at SEB and Barclays Corporate.

Katie is a leading adviser to third party agents on non-bank lendings, advising facility and security agents and also trustees across a range of capital markets and structured finance products. She frequently advises on the cash management and collateral administration aspects of private credit transactions.

This experience with private credit aligns to Katie’s particular focus on the private equity sector, advising lenders, private equity clients and their portfolio companies on finance throughout the investment lifecycle.

Katie is ranked as a Leading Partner in the Legal 500 directory and is ranked in the Chambers and Partners directory.

Accolades

  • Team winners of the Regional Legal Adviser of the Year at the Real Deals Private Equity Awards in 2020 and 2024

Career & Experience

Katie has spent just under 15 years at City firm Simmons & Simmons, gaining experience working on high value lending transactions, acting for UK and international syndicates of banks on a secured and unsecured basis, as well as advising corporate borrowers – whether on general financings or in restructuring situations. Whilst there she spent time on secondment at SEB and Barclays Corporate.

Katie is a leading adviser to third party agents on non-bank lendings, advising facility and security agents and also trustees across a range of capital markets and structured finance products. She frequently advises on the cash management and collateral administration aspects of private credit transactions.

This experience with private credit aligns to Katie’s particular focus on the private equity sector, advising lenders, private equity clients and their portfolio companies on finance throughout the investment lifecycle.

Katie is ranked as a Leading Partner in the Legal 500 directory and is ranked in the Chambers and Partners directory.

Accolades

  • Team winners of the Regional Legal Adviser of the Year at the Real Deals Private Equity Awards in 2020 and 2024

Testimonials

Don't just take our word for it

She is very hard-working, conscientious and diligent, handles the complex with ease, takes all of the stress out of the engagement and is fun to work with.

Chambers & Partners, 2026

She makes our job immeasurably easier.

Chambers & Partners, 2026

Katie provides an excellent level of service, with clear and regular communication, and offers flexible and commercial solutions to any problems that may arise.

Chambers & Partners, 2026

Katie-Jane Rees is an exceptionally smart lawyer who genuinely engages with the client, is impeccable at managing moving timelines, takes away all of the stress of a legal project, and is a joy to work with.

Legal 500, 2026

Katie-Jane, Toby and the FA team wasted no time in getting up to speed with the acquisition and refinancing, given this was our inaugural transaction together. Their flexible and pragmatic approach to communicating our requirements to the lenders in a cost efficient manner was greatly appreciated. I now consider them a trusted business partner.

Joe Wykes, CEO, Jollyes

‘Katie-Jane Rees is an absolute pleasure to work with. She is thorough and makes sure our interests are always protected whilst being commercial. My working day is always easier when she is involved in a transaction as she is very ordered and prepared and will go above and beyond to ensure her team handles all the aspects in good time.’

Legal 500 UK, 2025

‘Katie-Jane Rees – very knowledgeable with a can-do attitude, suggesting work arounds for complex matters, providing timely responses and remaining available as required.’

Legal 500 UK, 2025

“Katie provided a high degree of knowledge and commercial understanding.”

Chambers and Partners UK, 2025

“Katie’s knowledge and experience is invaluable.”

Chambers and Partners UK, 2025

“She is a very knowledgeable individual who demonstrates expertise with a can-do attitude. She understands the risks to reward ratio and provides solutions using industry knowledge.”

Chambers and Partners UK, 2025

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