The six biggest overall senior living operators on the LeadingAge Ziegler 150 list remained unchanged in their rankings from 2016 to 2017, and three additional organizations made the top 10 both this year and last. This year’s list was released Monday.

The report, from Washington, DC-based LeadingAge and Chicago-based specialty investment bank Ziegler, is the 14th annual ranking of the largest not-for-profit senior living providers of multi-site systems, single-site campuses and government-subsidized multi-site housing in the United States, in order of total owned market-rate units as of Dec. 31, 2016.

Holding on to their tops spots, in descending order, were National Senior Campuses of Maryland, Evangelical Lutheran Good Samaritan Society of South Dakota, ACTS Retirement Services of Pennsylvania, Presbyterian Homes & Services of Minnesota, Benedictine Health System of Minnesota and Covenant Retirement Communities of Illinois.

Ascension Senior Living of Missouri moved from No. 7 last year to No. 8 this year, Trinity Senior Living Communities (formerly Trinity Health Senior Communities) of Michigan moved up from the 10th spot to No. 9, and the Retirement Housing Foundation of California fell from No. 8 to No. 10. Moving up eight spaces into the top 10 this year was Cornerstone (formerly Cornerstone Affiliates — ABHOW and of California, taking the No. 7 spot compared with No. 15 last year. Lifespace Communities of Iowa, in the No. 9 spot last year, moved to No. 11.

The 10 largest providers represent approximately 30% of the total number of units for all systems in the LZ 150, Ziegler said.

Additional highlights of this year’s report:

  • Only one organization that was not on the overall 2016 list made the 2017 list: the Carmelite System of New York, in 18th place with 3,129 total units.
  • Tops in the rankings for independent living units was National Senior Campuses, with 16,346 units, almost three times as many as the next organization on the list.
  • No. 1 on the list based on number of assisted living units was the Evangelical Lutheran Good Samaritan Society, with 2,274 units. Good Samaritan also topped the list of nursing care providers, with 10,434 beds.
  • The largest single-campus senior living community was Charlestown, an Erickson Living retirement community in Catonsville, MD, which had 1,815 total units.
  • Topping the individual campus list was Riderwood Village, a National Senior Campuses community in Silver Spring, MD, with 2,180 total units.
  • The No. 1 provider of affordable housing was Mercy Housing of Colorado, with 22,255 units across 323 communities.
  • 75.2% of communities said they plan to expand or reposition an existing community within the next two years.

This year’s list totals more than 265,000 market-rate units at more than 1,300 market-rate communities in 47 states, in addition to affordable housing properties and home and community-based service offerings, Ziegler said. The organizations have grown at a rate of approximately 3% over more than 10 years, according to the bank; in recent years, much of that growth has come from affiliations and campus expansions.