We are dedicated to being the champions for SME businesses. Delivering a range of accounting, tax, audit, advisory and business services across the UK and Ireland. Whether its to free up time so that businesses can focus on the things that matter, help grow the business, or work through the trickiest of problems, we are here to help you succeed.
Location: United Kingdom, England, Guildford
Employees: 1001-5000
Founded date: 2022
Investors 1
| Date | Name | Website |
| 10.03.2024 | Penta Capi... | pentacapit... |
Mentions in press and media 2
| Date | Title | Description |
| 25.05.2026 | Ex-KPMG led accounting giant stalls £1bn sale | One of the UK’s largest accounting firms founded by a former KPMG head has put a £1bn auction on hold despite receiving a wealth of interest from investors. Sumer, a ‘consolidator’ firm that buys majority stakes in smaller independent accou... |
| 22.04.2024 | Why I left my leading role at KPMG to start my own accountancy firm for Britain’s SMEs | Jennifer Sieg sits down with Warren Mead, former KPMG chief operating officer and founder of Sumer, the accountancy firm with a unique mission to help Britain’s SMEs. Warren Mead was 26 years into his corporate career at Big Four accounting... |