Bower Lewis Thrower Architects (BLTa) is a US architectural firm, founded and headquartered in Philadelphia, Pennsylvania.

Company background
BLTa was founded as "Bower &Fradley Architects" in 1961 by John Bower and Fred Fradley. In 1978, the firm was renamed to "Bower Fradley Lewis Thrower Architects." The firm kept this name until 1980 when the title changed to "Bower Lewis Thrower Architects." This was shortened in the late 2000s to BLTa for marketing purposes.

People
• Michael L. Prifti - FAIA, Principal
• Eric M. Rahe - AIA, LEED AP, Principal
• Michael R. Ytterberg - PHD, AIA, LEED AP, Principal
• Stanley Tang - AIA, Principal

Selected projects
Education
• Penn State Smeal College of Business (2005)
• Penn State Chemistry Building (2004)
• Penn State Borland Building (2008)
• Penn State School of Forest Resources Building (2006)
Residential
• 101 Walnut Street (2007)
• Symphony House (2007)
• The Phoneix (2002)
• Venice Lofts (2007)
Hospitality
• The Borgata Hotel Casino and Spa (2003)
• Loews Philadelphia Hotel (2000)
• Reading Terminal Headhouse Marriott (1997)
• Revel Resort and Casino (May, 2012)[2]
Mixed Use and Retail
• Amtrak 30th Street Station Rail Yard (2004)
• DC USA (2008)
• The Borgata Hotel and Spa Retail Piazza
Parking and Intermodal
• Amtrak 30th Street Station Parking Garage (2004)
• Philadelphia International Airport Garage (2003)
• Suburban Station (2006)
• UPENN Module 6 Utility Plant and Garage (1995)
Office
• Cira Centre (2005)
• Duane Morris Headquarters (2005)
• Tower Bridge Corporate Campus (2000)