Greystone is the 25th largest senior housing operator in the U.S., according to the latest American Seniors Housing Association (ASHA) ranking. The ASHA 50 Owners and Managers is the definitive annual ranking of the nation’s 50 largest owners and operators of market-rate senior housing.

With more than 4,250 units, Greystone is in the top half of the 2014 list. Greystone moved up 9 spots from #34 in the 2013 rankings.