GDM is a globally renowned engineering and environmental design consultants firm that provide mechanical and electrical building services, building and home automation solutions, HVAC systems, and sustainable engineering solutions for homes and enterprises.

Rensair is a specialist in air purification, protecting, and enhancing lives through clean air. Its patented technology combines H13 HEPA filtration with germicidal UVC light, was developed to meet the strict standards of Scandinavian hospitals, and is independently validated by scientific research laboratories. Rensair air purification units meet all the standards recommended by the US EPA and UK SAGE committee in their respective reports.

Sureserve is a trusted partner of housing associations, local authorities and residents for compliance and energy services. They provide trusted high-quality solutions that focus on energy efficiency, warm, safe, and compliant homes, and an improved quality of life for residents.