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Keystone Law

Work 020 3319 3700
Fax 0845 458 9398

JP Irvine

Work 020 3319 3700
Keystone Law

Work Department

Corporate, Commercial


JP is a corporate and commercial lawyer with a wealth of experience gained working with start-up companies, online digital service providers, and larger institutions (like Lloyds of London). JP has blended private practice experience at a Magic Circle firm with 10 years in board-level General Counsel roles. JP’s experience at Keystone includes group reorganisations and M&A transactions, shareholder options and agreements, and GDPR/data protection & cyber security compliance programmes.


2017 Keystone Law | Consultant Solicitor
2014 Northern Ireland Housing Executive, Northern Ireland Public Service Ombudsman, NI Children and Young People's Commissioner | Non-Executive Member
2010 - 2017 Translink Group | General Counsel & Company Secretary
2006 - 2010 NI Utility Regulator/Energy Regulator | Legal Director
2004 Qualified as a solicitor in Northern Ireland
2004 - 2006 Arthur Cox/Pinsent Masons (collaboration on PFI/PPP Projects) | Corporate Lawyer
2003 Qualified as a solicitor in England and Wales
2001 - 2004 Clifford Chance LLP | Corporate Lawyer

London: Corporate and commercial

M&A: smaller deals up to £50m

Within: M&A: smaller deals up to £50m

Keystone Law counts start-ups, high-growth companies and large corporates, as well as private investors, venture capitalists and angel investors, among its clients; it has a particular focus on the TMT, healthcare and real estate sectors. Nadim Zaman advised WFL Media (trading as DesignMyNight) and its shareholders on its $30m sale to private equity-owned The Access Group; Andrew Stilton and Northern Ireland-based JP Irvine, who joined the firm from an in-house position at Translink Group, acted for pre-cast concrete products manufacturer CPM Group on its £38m sale to hard landscaping specialist Marshalls; and Catherine Williams assisted beauty services provider Blow with a £3.5m follow-on equity round investment by Unilever Ventures.

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Northern Ireland: Corporate and commercial

Corporate and M&A

Within: Corporate and M&A

Following its merger with commercial law boutique McMahon McKay in 2017, Keystone Law  is very well known for its track record on M&A and investment work. The group represents buy-side and sell-side clients from a range of sectors, including manufacturing and real estate. Highlights included advising a prominent investment fund on the £70m investment in Halo Belfast, a 5-year cyber and economic development project. John McMahon  leads the team, in which J P Irvine  and Danny McKay  are key names.

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