Kinbrook Group has acquired Old Mill and Brook Financial in the South West, under a partnership-led structure aimed at regional scale-up. 

The deal positions Old Mill — which boasts more than 350 professionals across offices in Exeter, Yeovil, Wells, Chippenham and Ilminster — as Kinbrook’s anchor hub in the region. Its services span accountancy, tax, wealth management and business advisory; Brook Financial brings specialist outsourced finance and payroll capabilities. 

Old Mill’s senior leadership team remains in place and continues to run the business, with many existing shareholders retained, ensuring continuity for both clients and staff. 

Mark Neath, CEO of Old Mill, said:

“Joining Kinbrook marks an important step in our journey – one that enables us to continue delivering the personal, long-standing service our clients value, while investing more in our people and the future. The partnership strengthens our ability to grow with purpose, broaden our services, and collaborate with like-minded firms. We’re proud to be Kinbrook’s South West hub and excited about the next chapter for Old Mill and Brook Financial.” 

Ian Symes, CEO of Kinbrook Group, added:

“Old Mill is an outstanding business with deep regional roots and a clear vision for the future. Their team shares Kinbrook’s commitment to people, excellence and long-term client relationships. This partnership marks a key moment for the group as we establish a strong presence in the South West and continue to grow with firms that lead in their regions.” 

The acquisition supports Kinbrook’s strategy of building a UK-wide network of regional firms that are “excellence-driven and nationally connected”.