1979 - Tom Gelsosomo opens his first restaurant in Portage, Indiana.
1989 - Gelsosomo's Pizza won an award naming them the Best Tasting Pizza in Porter County.
1990 - Gelsosomo's Franchise Corp. founded. The new franchise company was given clearance by the State of Indiana to begin its franchise expansion program.
1990 - A site in Chesterton, Indiana was chosen. Mr. Ron Nabhan opens the first franchise.
1991 - Gelsosomo's growing popularity was proven when their pizza was named Best Tasting Pizza in Northwest Indiana.
1995 - Experiencing much success at his Chesterton location, Mr. Nabhan opens a carryout and delivery location inside Innman's Recreation Center in Valparaiso, Indiana.
2000 - A new site in Valparaiso, Indiana was selected for a full service restaurant to relocate the pizzeria at Innman's Recreation Center.
2003 - A site was chosen in Michigan City, Indiana for a full service restaurant.
2005 - The train depot in Saint Joseph Michigan was selected for a full service restaurant at historical Silver Beach.
2007- A site was chosen in Crown Point Indiana for a full service restaurant.
2012- A site was chosen in Cedar Lake Indiana for a full service restaurant.
Gelsosomo's: More than 30 years of excellent pizza, Post Tribune Reader Choice Awards, 4/24/2011(.jpg)
Gelsosomo's Pizzerias, an Unbeatable Recipe for Success, Portage News, 02/22/2003 (.pdf)
Gelsosomo's Pizzeria Moves to a Hot Spot, The Times, 09/23/2002 (.pdf)
Gelsosomo's Pizzeria Neighbor's Choice Pizza, Post-Tribune, 04/17/2000 (.pdf)
Gelsosomo's Pizzeria: 'Like One of the Family', Duneland News, 01/14/2000 (.pdf)
Gelsosomo's Pizzeria Among Area's Upper-Crust Pizzerias, Post-Tribune, 04/23/1999 (.pdf)
Gelsosomo's Pizzeria Franchising its Business, Portage News, 03/23/1996 (.pdf)