Profile
Ad Valorem Accountancy is a multi award winning UK accounting and advisory firm operating from Milton Keynes, Cambridgeshire, and Bedfordshire. Backed by ETL Global through the ETL GLOBAL UK group, the firm specialises in research and development R and D tax credits and delivers innovative, technology enabled, and family led accounting services to owner managed SMEs.
About ad valorem
Awards and Recognition
Ad Valorem has built a strong reputation for modernising traditional accountancy and enhancing the client experience. Its key accolades include:
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- Xero Mid Size Firm of the Year, winner in both 2020 and 2024
- Independent Firm of the Year at the British Accountancy Awards
- Accounting Excellence Awards 2025 Silver Award in the Deal of the Year category, recognising transformational growth
Partnership with ETL GLOBAL UK
Ad Valorem joined the ETL GLOBAL UK group in August 2024. The partnership was established to support the firm’s continued growth, provide long term stability for its people, and preserve its independent and family led culture.
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The collaboration has also enabled Ad Valorem to expand its international reach, strengthening its ability to support clients trading across Europe and beyond.
Acquisitions and Growth Strategy
Supported by ETL GLOBAL UK and ETL Global through the ETL GLOBAL UK group, Ad Valorem has developed a disciplined acquisition strategy focused on retaining local leadership and firm heritage while integrating enhanced technology capability.
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Key acquisitions include:
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- Collett Hulance acquired in April 2026, bringing over 80 years of Bedfordshire based heritage into the group
- Thompsons Accountancy Services, strengthening the group’s presence in Bedford and expanding services in payroll, succession planning, and tax
- Additional acquisitions, with at least four strategic purchases completed by 2026, broadening regional capability
Ambitions and Outlook
Ad Valorem’s growth strategy is focused on long term regional leadership and sustainable expansion across the Oxford Cambridge growth corridor.
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Key priorities include:
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- Regional strength, deepening its footprint across key economic hubs in the region
- Inward investment opportunity, supporting clients and stakeholders linked to major developments including Bedfordshire emerging infrastructure projects
- Holistic advisory services, scaling specialist offerings such as R and D tax while addressing SME challenges including digital transformation and talent retention, without compromising the independence of acquired firms
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Through this approach, Ad Valorem continues to evolve as a forward looking advisory group combining local expertise with international reach through ETL GLOBAL UK.
Key Contact
Nigel Adams FCCA
Managing Director
Nikki Adams
Director
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Reviews
Details
CB23 2RF



