Irwin Mitchell Sells IM Asset Management to Shackleton
Deal News | Jun 01, 2025 | Irwin Mitchell

Shackleton has acquired IM Asset Management (IMAM) and TWP Wealth from Irwin Mitchell. IMAM, including TWP, now strengthens Shackleton's position in financial planning and investment management. The firms have significant regional presence and bring £1.4bn in funds under management to Shackleton, with 88 staff including CEO Stewart Sanderson joining the new organization. Shackleton is implementing a new division focused on clients with serious injuries, offering specialized financial and investment advice. Irwin Mitchell sees this sale as an opportunity to streamline operations and concentrate on their core services in law.
Sectors
- Financial Services
- Legal Services
Geography
- United Kingdom – The companies involved are based in the UK, with operations and significant client bases throughout the country.
- England – IMAM has a strong presence in various cities across England, and Shackleton is headquartered in London.
Industry
- Financial Services – This industry involves companies that manage money, including financial planning and wealth management services provided by IMAM and Shackleton.
- Legal Services – Irwin Mitchell is a full-service law firm, and the transaction relates to their strategy to focus on core legal services by divesting a non-core asset.
Financials
- 1.4bn – Funds under management and advice by IMAM and TWP, now part of Shackleton.
Participants
Name | Role | Type | Description |
---|---|---|---|
IM Asset Management (IMAM) | Target | Company | A financial planning and investment management firm acquired by Shackleton from Irwin Mitchell. |
Irwin Mitchell | Selling Company | Company | A full-service law firm that sold IM Asset Management as part of a strategic divestment. |
Shackleton | Bidding Company | Company | A Chartered financial adviser and wealth manager that acquired IM Asset Management and TWP Wealth. |
TWP Wealth | Other Company | Company | A financial planning company acquired by IM Asset Management in 2022, now part of Shackleton. |
Stewart Sanderson | CEO of Target | Person | CEO of IM Asset Management and now part of Shackleton's executive committee. |
Craig Marshall | CEO of Selling Company | Person | Group CEO of Irwin Mitchell. |
Paul Feeney | CEO of Bidding Company | Person | CEO of Shackleton. |