Cornerstone Group expands with acquisition of Brinson Staniland Partnership (BSP)

We are delighted to announce that Cornerstone Group has acquired Brinson Staniland Partnership (BSP), marking the next significant step in our strategic expansion.

BSP is a highly respected consultancy with a strong reputation for delivering high-quality Mechanical & Electrical (M&E) services. Their technical expertise, client relationships and sector experience make them a natural fit for the Group.

This acquisition significantly strengthens our M&E capability. By combining BSP’s established team with the existing Cornerstone M&E operation, we are creating a deeper, more scalable and more regionally diverse offering.

The result is:

• Greater technical depth across mechanical and electrical disciplines.
• Enhanced capacity to deliver complex, large-scale projects.
• Broader sector reach and geographic coverage.
• A stronger, future ready platform for sustainable growth.

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. This move reinforces our commitment to investing in specialist capability and delivering integrated, high-quality professional services to our clients.

Most importantly, this is a partnership built on shared values, technical excellence, client focus and collaborative delivery.

We are excited to welcome the BSP team to the Group and look forward to the opportunities this next stage of expansion will bring for our people, our clients and our partners.

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 of 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.”