|Location||400 North Ashley Street, Tampa, Florida|
|Management||Morning Calm Management LLC|
|Roof||454 ft (138 m)|
|Floor area||92,900 m2 (1,000,000 sq ft)|
|Design and construction|
The Rivergate Tower, also known as the Sykes building. With 31 floors, it is the sixth tallest building in Tampa. Rivergate Tower's principle tenant is Sykes Enterprises, a publicly traded company that operates technical help and customer support centers internationally. The building was constructed from 1986 to 1988. Harry Wolf (architect) based its measurements on the Fibonacci series. in which each number is the sum of the two preceding numbers. His design for Rivergate Tower was given the 1993 National Honor Award from the American Institute of Architects. The building is faced in French and Texas limestone, making it one of the tallest limestone structures in the world. The distinctive cylindrical shape was meant to symbolize a lighthouse and represent optimism. The building was purchased by In-Rel Properties in 2011.
The building was constructed in 1988 as headquarters for NCNB, a predecessor to Nations Bank. It cost $150 million. Parking is provided in a two-story sub level structure with a total of 731 spaces.
An adjacent cube houses a Kahwa Coffee, a bank, and the Florida Museum of Photographic Arts. On April 18, 2012, the American Institute of Architects's Florida Chapter placed the Rivergate Tower on its list of Florida Architecture: 100 Years. 100 Places. The Gulf of Mexico can be seen from the building.