GMT Timeline
2017
All four divisions move to new facility.
2015
GMT Escorts their 47th Band to the Rose Parade.
2010
GMT Escorts 5 bands to the Rose Parade
2007
New GMT logo and branding is launched.
2005
Michael takes the helm with his wife Erika.
2005
Grueninger’s purchase the Ambassadair assets from ATA including Ambassadair Groups & Incentives and Amber Travel.
1997
Grueninger’s makes a substantial investment in the King Kamehameha Parade.
1995
GMT branding and name is launched.
1991
Othmar and Libby’s son Michael joins the team after graduating from Indiana University.
1984
Grueninger invests in a motorcoach to show guests around the country.
1975
GMT escorted our first band to King Kamehameha Parade in Hawaii.
1973
George Mickleson launched his dream forming AmbassadairTravel Club.
1973
GMT escorted our first band to the 37th Macy’s Thanksgiving Day Parade.
1967
Grueninger continues to escort students around Europe.
1966
Grueninger invests in three Pullman Train Cars to take passengers to the Montreal Expo.
1963
Grueninger Travel Services (GTS) escorted our first band to the Rose Parade.
1956
Othmar and Libby start a full-service travel agency.
1954
Othmar Grueninger (exchange student from Germany) hosts his maiden tour with DePauw Students and meets his wife Libby.
