The firm was founded in 2000 and has grown to a turnover of £109m making a pre-tax profit of £4m for the year to 31 May 2025.
Founder Semus Quinn said: “The move to an Employee Ownership Trust represents an exciting new chapter for Quinn London.
“Our people have always been central to our success, and this transition ensures they have a direct stake in the future of the business. It allows us to preserve our values, strengthen our culture, and build on the solid foundations we have established.”
The company will continue to operate under its existing leadership team, ensuring continuity for clients, partners, and employees.

