In an effort to keep up with the latest business and travel news coming out of Yangon in print form, I scanned and upload a copy I was given of the 2015 Yangon Hotel Directory which lists 160 hotels.
There are more being built and opening every day so this is by no means a complete list but it is a great start to find accommodation in Yangon.
Ministry of Hotels and Tourism (Yangon Hotel Directory 2015)