The company says the job losses are part of a restructuring and cost-cutting exercise, following the retirement of one of the partners.
Caversham was established in the Island in 1977 and within the last five years has opened offices in Geneva and London.
In addition to trust and company business, the Caversham Group offers audit and accounting services, corporate and personal fiscal planning, and management and administration of investments.
Prior to the redundancies, the Jersey fiduciary office in Union Street employed 49 staff.
Managing director Stephen Whale said: ‘The market for fiduciary services has become increasingly cost-sensitive in the last two years.
The effect of this is that all businesses in our industry need to strive for greater efficiency to ensure their long-term success.
Mr Whale said that the firm ‘remained committed’ to business development in Jersey.
The company has engaged a consultant to assist staff who have lost their jobs to find alternative employment.
