Quadric's clients include the following companies and organisations:

Addagrip
Annecy School, Seaford
Ashburnham Trust
Battle Baptist Church
Bishop Bell School
Blackboys School
Bowles Outdoor Centre
Brighton & Hove City Council
Brightwell Dispensers
Caring Homes Ltd
Crawley Borough Council
Downland Housing Association
East Sussex Ambulance Service
East Sussex County Council
East Sussex National Golf Club
East Sussex Hospitals NHS Trust
Eastbourne & County Healthcare
Eastbourne Borough Council
Eastbourne College of Arts & Technology
Edenbridge Town Council
English Heritage
Freedom Leisure
Guildford Borough Council
Hailsham Trust
Hastings & Rother NHS Trust
Historic Properties & Renovation
Landmark Trust
Martha Trust
National Trust
Oakdene Homes PLC
Raven Group
Rother District Council
Rye Town Council
Seaford Town Council
St Andrews Church, Portslade
St Richards School, Bexhill
Southern Housing Group
Southern Water
Sussex Archaeological Society
Sussex Magistrates Court Service
Sussex Police Authority
Sussex University
Sutton Valance School
The RAF Benevolent Fund
Thomas Scanlan Housing Trust
Tonbridge & Malling Town Council
Town & Country Housing Association
University of Brighton
Wealden District Council
West Sussex County Council