Name that company

I began in 1919, when my founder bought a hotel in Cisco, Texas, instead of the bank he’d planned to buy. In 1943, I already had hotels in California; buying New York’s Roosevelt and Plaza hotels, I became the country’s first coast-tocoast hotel chain. Today, with brands including Conrad, DoubleTree, Embassy Suites, Hampton Inn, Homewood Suites and Waldorf Astoria, I encompass more than 6,100 properties with more than 971,000 rooms in 119 countries and territories. Brownies were invented, in 1893, at a Chicago hotel that later became one of my properties. I pioneered the airport hotel concept, too. Who am I? Last Week’s Trivia Answer: Paychex