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.