The business has shot up from 18th to 11th in the 2018 list, which ranks Britain’s private mid-market companies by sales, with Hays Travel entering at 61st.
2018 proved another strong year for travel, with Travel Counsellors rising from 125th to 121st, Click Travel 158th to 134th, Audley Travel 146th to 178th and Riviera Travel 208th to 178th.
Eleventh is Southall’s best showing in the league, now into its 14th year, and becomes the highest ranked privately-owned travel agency and tour operator in the country.