Audit services that build
confidence and trust

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Our Audits are
Straight forward

Most companies see audits as a burden.

We see them as an opportunity. At Sumer, our audits are straightforward, efficient and genuinely helpful, giving you clarity, confidence and peace of mind. Rather than disruptions and delays, you’ll get valuable insights that can help you drive your business forward.

Audit Services

We focus on the areas that matter most to your business, helping you strengthen performance, reduce risk and stay in control. With partner-led relationships and local delivery, you get audits grounded in sector expertise and real-world understanding. And because audits shouldn’t add stress, we keep our advice clear and practical, with straightforward insights you can actually use.

Sumer Audit Services
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How we champion your business

Sumer Bank
Turn compliance into confidence:

Statutory audits that give you clarity and reveal opportunities to
grow stronger.

Sumer Magnifying lens
Get clarity, not complexity:

We make the numbers make sense, providing clear, practical advice you can
act on.

Sumer Puzzle Piece
Plan with certainty

Our audits give you a solid foundation for budgeting, forecasting and better business decisions.

Sumer Synchro arows
Solve real-world challenges:

Tailored assurance that reflects the realities of your sector and the pressures you face.

Find out how we can help you move forward with
confidence and peace of mind.

Meet the team

There are plenty of ways Sumer can make a difference to your business.

But if we had to pick one, it’s our people. With partner-led services from local experts in every region, we offer national scale and personal support from people who understand your sector and your community. From succession planning and exits to international growth, our specialists are here to help you make the big decisions with confidence.

Sumer - Team Image - HW Fisher - Carol Rudge

Carol Rudge

London
Sumer - Team Image - HW Fisher - Carol Rudge

Carol Rudge

I lead the NFP group at HW Fisher and am Head of Coaching. I have worked in the sector for 30 years having followed my passion to become a specialist in this area not long after qualifying as a chartered accountant.

My experience extends across charities, universities, independent schools, trade unions and membership bodies and I have worked with a very diverse range of clients in terms of both size and activities. This has enabled me to develop significant expertise across all aspects of accounting, assurance and governance as well as strategic issues and risk.

I am a member of the Charity Commission’s SORP committee which gives me first-hand knowledge of the technical direction of travel for the sector. I have also been a member of an audit committee of a large international charity.

I am an accredited coach and really enjoy my coaching activities as I strongly believe that coaching can make a real difference to individuals. I am also a passionate believer in EDI.

I joined HW Fisher as a partner in 2021 having previously been a partner and global head of Not for Profit at Grant Thornton for many years.


Expertise

  • Charities
  • Universities
  • Membership bodies
  • Trade unions
  • Independent schools
  • Audit
  • Governance
  • Strategy
  • Coaching

Sector Specialisms


Memberships

ICAEW

European Mentoring and Coaching Council

Charity Commission’s SORP committee

Sumer - Executive Team Image - Lindsey Tyler

Lindsey Tyler

National
Sumer - Executive Team Image - Lindsey Tyler

Lindsey Tyler

Appointed in May 2025 as Group Head of Audit, Lindsey’s leadership is defined by her investment in people and her commitment to advancing audit technologies. She is passionate in fostering a culture of collaboration, learning, and excellence—ensuring clients benefit from rigorous compliance standards and future-ready audit solutions.

Lindsey brings her transformative leadership across the audit practice in England, Northern Ireland, and Scotland. Drawing on more than 20 years of expertise working with privately owned, family owned, and private equity backed businesses across property, manufacturing, healthcare, technology, and distribution sectors.

Lindsey leads over 600 auditors across 50+ offices, cultivating an environment where talent is nurtured and new technologies are embraced to ensure exceptional audit quality. A graduate of the University of Reading, she has progressed through senior roles in national audit firms, equipping her with the strategic vision needed to empower teams and drive continual improvement.

Let’s get your business growing