Benchmark International Successfully Facilitated the Transaction Between Brinson Staniland Partnership Ltd and Cornerstone Group

Benchmark International is delighted to announce the acquisition of Brinson Staniland Partnership (BSP) by Cornerstone Group.

BSP is a highly respected consultancy with a strong reputation for delivering high-quality mechanical and electrical (M&E) services. The company employs a team of experienced chartered engineers with a reputation for delivering innovative, low-energy designs.

Cornerstone Group is a UK-based construction, infrastructure and sustainability business that delivers integrated services across design, civil engineering, utility connections, construction and facility management. With a strong focus on innovation and environmental responsibility, the Group helps clients deliver high-quality, energy-efficient developments while reducing the environmental impact of the built environment. Cornerstone Group is the parent company of Naismiths, Edmond Shipway and N3 Technologies, bringing together complementary expertise across surveying, cost management, project delivery and technology-driven solutions.

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The acquisition represents a significant strategic step for Cornerstone Group, strengthening its mechanical and electrical capabilities and increasing its capacity to deliver complex, large-scale projects. By combining the expertise of both organisations, the Group will benefit from broader sector reach, expanded geographic coverage and enhanced technical depth, creating a stronger, future-ready platform for sustainable growth.

Ben Harwood, CEO of Cornerstone Group, commented: “We are delighted to welcome Brinson Staniland Partnership into the Group. As building performance, sustainability and energy efficiency continue to rise in importance across the built environment, strengthening our M&E expertise is a key part of our long-term strategy. The acquisition of BSP reinforces our commitment to investing in specialist capability and delivering integrated, high-quality professional services to our clients.”

Patrick Brinson, Director at BSP, added: “We are absolutely delighted to be joining Cornerstone Group. This marks an exciting new chapter for BSP, and we look forward to combining our talented team with the existing Cornerstone Group team. Together, we will create a stronger, more scalable platform with greater regional diversity across our mechanical and electrical disciplines. This enhanced capacity positions us well to meet growing demand and deliver even greater value to our clients. We are enthusiastic about the opportunities ahead and how joining the Group will help drive the business forward.”

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