Eight firms cover quantity surveying on the island — all limited companies, six RICS-regulated, four holding MRICS. Five work from St Peter Port, two from St Martin, one from Forest. WT Partnership (1965) is the longest-established chartered QS firm on the island; BTP (2015) the newest. Six list project management alongside quantity surveying. —
St Peter Port·Professional services
Part of WT Partnership (international consultancy with offices across UK, Europe and beyond)
✦Active since 1965
Chartered Quantity Surveying practice established in 1965, regulated by RICS, providing quantity surveying, cost management, and project management.
Forest·Professional services·Est. 2014
RICS Regulated Firm established in 2014, specialising in quantity surveying, project management, and contract administration in Forest.
St Peter Port·Professional services
RICS Regulated Firm specialising in chartered quantity surveying for residential customers and commercial contracts.
St Martin
Guernsey construction and consulting firm offering project delivery, strategic support, fleet optimisation, and ESG initiatives.
St Peter Port·Professional services
Construction and property consultancy established in 2009, offering project management, quantity surveying, cost consultancy, and employer's agent services.