1
2
3
4
5
6
7
8
9
10
11
1973
Maintenance, Inc.
1978
Maintenance of America, Inc.
1982
Maintenance of Houston, Inc.
1982
Maintenance of Ft. Worth, Inc.
1983
Maintenance of Dallas, Inc.
1984
Maintenance of San Antonio, Inc.
1984
Maintenance of Austin, Inc.
1993
Premium Maintenance, Inc.
1995
Maintenance of Arkansas, Inc.
1996
Maintenance of Florida, Inc.
1999
Maintenance of Denver, Inc.