They were the 2012, 2013, 2016, 2017, 2018, 2019 and 2021 National Champions of the new American Basketball Association (ABA), which they joined as an expansion team for the 2010–2011 season.

In 2014, the team was recognized for their off-the-court achievements with the ABA National Charity Award for their work in the Jacksonville community.

In May 2010 the American Basketball Association announced a new franchise based in Jacksonville would join the league for the 2010–2011 season.

[1] In 2010 owner Sholes stated that he hoped to avoid the fate of the Jam and other minor league basketball teams that have failed in Jacksonville with a more professional marketing strategy.

[6] The Giants had their 2011–2012 opener on December 3, 2011, defeating the Gulf Coast Flash by 1 point on a buzzer beating 3-pointer by Shooting Guard Currye Todd on an inbound pass from former National Basketball Association player and 1992 US Dream Teamer Christian Laettner.

Giants won second ABA Championship in a row, defeating the North Dallas Vandals, from whom they received their only loss of the regular season, 2–0 in a best-of-three series.

The Jacksonville Giants finish the regular season with a 20–1 record and head to the ABA Final 8 in St. Louis, MO.

The Giants take a 129–98 win over the Steel City Yellow Jackets in the first round of playoffs and advance to the semifinals.

In the semifinals the Giants take on the Syracuse Stallions and are able to pull off a 149–129 win which advanced them to the 2019 ABA National Championship game.