Leander won six medals to take their tally to 14 in three days, while Mount Kelly added another five to their tally.
Both teams claimed one gold apiece on Thursday evening.
Leander’s came courtesy of Harry Middleton in the 15-year-old boys’ 50m backstroke. He touched in 27.42 seconds.
Mount Kelly’s gold came from Kaylee Dekker in the 12/13-year-old girls’ 100m freestyle. Dekker, who won a silver in the 50m butterfly on the opening night, clocked 59.68 seconds for the two length race.
Reece Worth and Lauren Hession claimed silvers for Mount Kelly and Abi Rawlings and Jack Hutchin bronze medals.
Worth, who won a silver medal at the ASA Open Water Championships on Monday, took second in the 18 and over 200 IM with a time of 2:08.53. Hession’s silver came in the 14-year-old girls’ 100m freestyle, where she clocked 1:00.04.
Rawlings came third in the 16/17 girls’ 200m breaststroke in 2:42.33, while Hutchin just edged out his Mount Kelly team-mate Jacob Newcombe for bronze in the 14-year-old boys’ 50m backstroke. Hutchin touched in 29.96 seconds, with Newcombe fourth in 30.05.
Leander claimed three silvers and two bronze medals to add to Middleton’s gold.
Imogen McCalman was second in the 15-year-old girls’ 100m freestyle in 59.26 seconds, with Frederick Cornwell claiming a silver in the 16/17-year-old’s 200m butterfly in 2:08.40.
Leander’s other silver came from their senior 4x200m freestyle relay team of John Slater, Freddy Clampett, Alexander Millington and Luke Oakley.
They also won a bronze in the 14/16 4x200m freestyle relay courtesy of Oscar Brain, Adam Davies, Callum Rayment and Alexander Raw.
Leander’s other medal came from Masai Zebe-Chaka, who took third in the men’s 50m backstroke with a time of 27.42 seconds.