Solos currently takes about 11,000 customers on holiday every year, specialising in escorted tours.
Andrew Williams, managing director, said: “The singles market is seeing strong growth, and we look forward to capitalising on this with our new investment.”
As part of the deal, Solos will have access to £1 million growth capital to support its expansion plans.
“We are looking forward to expanding our Club Solos offering [properties reserved for the singles market], but more excitingly, we will be introducing new marketing channels for 2020,” he added.
Steward Baird, chief executive of Stone Ventures, told TTG that while Solos already works with the trade, “part of the plan is to grow that”.