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Andy Atwell is a Senior Associate in the Employment department. Andy has a strong reputation for his quick understanding of complex legal issues, and ability to communicate solutions effectively. As a result Andy is key to relationship support and management for clients across a number of sectors including energy, media and retail. He advises on a broad range of matters including complex grievance, capability and conduct issues, managing the transfer of employees under TUPE, workforce reductions, changes to terms and conditions, senior exits, and sensitive employee and industrial relations issues. He also uses this experience to great effect across his other work; whether advising on the employment aspects of corporate transactions, or managing litigation and appearing before the Employment Tribunal. Andy regularly supports employers on mobile staffing issues, including cross-border, expat and international termination issues. Andy is an experienced client trainer, with GDPR, off-payroll rules (IR35), and the duty to prevent sexual harassment being recent examples.

Relevant experience

  • Defending a multinational energy services company against claims for whistleblowing, unfair dismissal and breach of contract.
  • The lead employment adviser in relation to an operator’s disposal of over EUR 1bn worth of assets in the North Sea, including TUPE aspects transactional document negotiations, and transitional personnel matters.
  • Ithaca plc on its employment integration and immigration issues following a significant business combination with Eni.
  • IT services company on sensitive personnel investigations. 

Education

  • 2005 – Legal Practice Course, Oxford Insitute of Legal Practice, Oxford
  • 2004 – Graduate Diploma in Law, BBP, London
  • 2001 – MA Classics, Bristol University, Bristol

Further reading

  • CMS advises Patron Capital on sale of Generator Hostels

Insights by Andy

Collective redundancies under the Employment Rights Act 2025 (ERA): consultation launched on organisation-wide threshold

03 Mar 2026 4 min read

Employment Rights Act – the final position

13 Jan 2026

Too much information?

12 Dec 2022 5 min read

People considerations in Energy Transactions

01 Dec 2022
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