Sheraton Systems plans to double turnover for its underwriting and broking system Websure within the next 12 months.
Sheraton managing director Nick Beach said the company was looking to add up to five new customers in the next year, to double its turnover to £1m.
Beach said the company had already signed up one new customer, commercial schemes operator Freelance.
Beach said: "We want to grow the business, and are now advertising and looking for new customers. But we want the expansion to be controlled and at a reasonable pace."
Several subsidiaries of Sheraton's parent company Holman's already used the system for both underwriting and broking, said Beach.