Aimbridge Hospitality and Interstate Hotels & Resorts, two of the largest hotel management companies in the world, have entered into an agreement to merge. The combined company would manage a portfolio of more than 1,400 branded and independent properties in 49 states and 20 countries. Dave Johnson, CEO of Aimbridge, will become CEO of the combined business. Michael Deitemeyer, CEO of Interstate, will become global president, overseeing operations globally and corporate disciplines. Advent International, a private equity investor, acquired a majority ownership stake in Aimbridge earlier this year and will assume majority ownership of the combined entity. The transaction is subject to regulatory approval and customary closing conditions. It is expected to be completed by the end of this year. Johnson said the combined scale will ensure access to more robust data and the best talent “to further differentiate us as leading hospitality managers.”