| Acumen Field Limited | Stockport | 2016 |
| Acumen Fieldwork Limited | Manchester | 2005 |
| Acumen Financial Management Limited | Ferndown | 2020 |
| Acumen Fire Protection Specialists (Afps) Ltd | Llanelli | 2019 |
| Acumen Global Ltd. | Cardiff | 2015 |
| Acumen Group Management Ltd. | London | 2018 |
| Acumen Growth Accounting Ltd | Leicester | 2025 |
| Acumen IBC Ltd | Abingdon | 2016 |
| Acumen Images Ltd. | London | 2004 |
| Acumen Innovations Ltd | London | 2005 |
| Acumen Intelligent Consulting Limited | Hereford | 2020 |
| Acumen Investment Management Solutions Limited | London | 2024 |
| Acumen Investments Limited | London | 1992 |
| Acumen Law Limited | Hove | 2008 |
| Acumen Legal Ltd | Doncaster | 2024 |
| Acumen London Ltd | London | 2017 |
| Acumen Management International Limited | Brighouse | 2010 |
| Acumen Marketing Services Limited | Northampton | 1999 |
| Acumen Medtech Limited | Nottingham | 2015 |
| Acumen Motorsport Consulting Ltd | Billericay | 2026 |
| Acumen Oxford Ltd | Oxford | 2024 |
| Acumen Part Time FD Limited | Redhill | 2010 |
| Acumen Portfolio Solutions Limited | Haywards Heath | 2009 |
| Acumen Professional Services Limited | Surrey | 2004 |
| Acumen Property Consultants Ltd | Wolverhampton | 2025 |
| Acumen QS Ltd | St. Helens | 2025 |
| Acumen Realty Services Ltd | Essex | 2024 |
| Acumen Regulatory Consultants Limited | Billingshurst | 2019 |
| Acumen South Shields Limited | Newcastle Upon Tyne | 2024 |
| Acumen Staffing Management Ltd | Croydon | 2009 |
| Acumen Stars Ltd | London | 2025 |
| Acumen Strategy Partners Limited | Wirral | 2004 |
| Acumen Surveying Management Services Limited | Ashford | 2012 |
| Acumen Tax Ltd | Glasgow | 2020 |
| Acumen Taxation Services (Manchester) Ltd | Preston | 2020 |
| Acumen Taxation Services (Preston) Ltd | Leyland | 2019 |
| Acumen Trade Limited | Harlow | 2009 |
| Acumen Ventures Limited | Chichester | 2016 |
| Acumen+ Accountants Ltd | Rushden | 2024 |
| Acumenica Group Ltd | Grangemouth | 2018 |
| Acumenix Limited | Ash Vale | 2016 |
| Acumenmc Limited | Northants | 2003 |
| Acumensis Ltd | Co. Antrim | 2003 |
| Acumental Limited | London | 2015 |
| Acumentec Ltd | Cheltenham | 2022 |
| Acumentree UK Ltd | London | 2025 |
| Acumeq Ltd | Nottingham | 2025 |
| Acumeus Accountants Ltd | Stanmore | 2022 |
| Acumine Ltd | Maple View | 2020 |
| Acuming Ltd | Markfield | 2026 |
| Acumist Accounting Limited | Rickmansworth | 2014 |
| Acumo-Accountancy Ltd | Peterborough | 2021 |
| Acumon Accounts I Tax I Wealth Limited | London | 2022 |
| Acumon Advisors Limited | Ealing | 2023 |
| Acumon Commercial Consulting Limited | Ealing | 2026 |
| Acumon Directors Limited | London | 2021 |
| Acumon Law Limited | London | 2022 |
| Acumon Private Clients Limited | London | 2021 |
| Acumon UK Group Limited | London | 2025 |
| Acumplished Ltd | London | 2022 |
| Acumu IT Limited | Bexleyheath | 2014 |
| Acunavis Ltd | London | 2026 |
| Acupec Limited | Bournemouth | 2018 |
| Acupeople Ltd | Reading | 2022 |
| Acupet VET Ltd | Dingwall | 2021 |
| Acupin Limited | Cheltenham | 2013 |
| Acura Consultants Limited | Romford | 2013 |
| Acura Consulting Ltd | London | 2025 |
| Acura Engineering Consultants Ltd | Luton | 2021 |
| Acura Medical Consulting Ltd | Cambridge | 2023 |
| Acuratec Limited | Manor Way, Borehamwood | 2013 |
| Acure Limited | Wolverhampton | 2018 |
| Acuri Ltd | Manchester | 2025 |
| Acuron Ltd | Chipping Norton | 2026 |
| Acurutek Ltd | Swindon | 2022 |
| Acuserv Solutions Limited | London | 2018 |
| Acushla Ltd | Edinburgh | 2018 |
| Acushla Training Ltd | Newry | 2020 |
| Acusol Ltd | Milton Keynes | 2018 |
| Acustica Limited | Gloucester, | 2005 |
| Acutax Limited | Ipswich | 2026 |
| Acute Accountants and Business Advisors Ltd | Ashford | 2016 |
| Acute Accounting Limited | London | 2013 |
| Acute Agency Ltd | London | 2020 |
| Acute Blossom & Co Ltd | London | 2013 |
| Acute Building Design Limited | Castle Cary | 2008 |
| Acute Business Consultants Ltd | Ashford | 2020 |
| Acute Change Limited | London | 2015 |
| Acute Consultants Limited | Chester | 2007 |
| Acute Consulting Engineers Limited | Lowestoft | 2017 |
| Acute Consulting Limited | Sidcup | 2019 |
| Acute Contracts Limited | Staines-Upon-Thames | 1990 |
| Acute Conveyancing Ltd | Liverpool | 2019 |
| Acute Demolition Limited | London | 2011 |
| Acute Developments (Chingford) Limited | Hertfordshire | 2006 |
| Acute Developments (Finchley) Limited | Herts | 2007 |
| Acute Engineering Ltd | London | 2004 |
| Acute Engineering Surveys Limited | Dungannon | 2005 |
| Acute Financial Solutions Limited | Eastbourne | 2015 |
| Acute Financials Limited | Bradford | 2012 |