Annual turnover at Southall Travel Group grew by 18% in the past year to £419 million.
The figure for the 12 months to March compares with £355 million in the previous 12 months.
Managing director, Kuljinder Bahia, said: “I am extremely pleased with our achievement last year.
“All the brands are doing well and I am thankful for our strong relationships with our suppliers and to our customers who book with us time and time again.
“In particular our Holiday Team brand working in the B2B market has shown strong results.”
He added: “We have increased investment in consumer marketing and will continue to do so.
“Looking forward, our growth focus is on North American destinations and this will be driven by expanded destination marketing.”