Former Brisbane Roar defender Milan Susak played a major role in Ange Postecoglou's Premiership and Championship winning side.
The following year they dropped the "Riverside" name and were promoted to the First Division of the NSW State League as Avala.
Under Brian Brown the club has achieved three Premierships respectively in 2010, 2012 and 2014 alongside two Championships in 2013 defeating the Rockdale City Suns at Penrith Stadium in front of over 8000 spectators thanks to a solitary goal from Former Adelaide United Striker Robbie Younis.
The club continued their Championship winning feat in 2015 with a 2–0 victory of arch rivals Blacktown City at Leichhardt Oval in-front of a crowd of 3000.
The club also reached the 2010 and 2012 NSW Premier League Grand Finals but lost to Blacktown City and Marconi Stallions respectively.
After an abysmal 2018 season for the club, the Bonnyrigg White Eagles were relegated and will now compete in the NSW NPL 2 competition in 2019.
Bonnyrigg's club badge consists and a crowned double-headed White Eagle with a soccer ball over a boomerang in its centre.
In 2001, an additional 1.2 hectares of land was purchased as part of a plan to renovate the club and expand the training grounds.
Bonnyrigg was demoted to the Winter Super League due to fan violence and would not meet Sydney United again until 2009.
Blacktown and Bonnyrigg are long time rivals with the history of both teams dating back to the 1970s where they first met.
Australia Yugoslavia Guinea Lebanon Malaysia Mozambique New Zealand Northern Ireland Peru Philippines Serbia Indonesia Bonnyrigg's most notable achievements include; Bonnyrigg's most successful year in their history came about in the 1992 season, a year their fans will never forget.
Despite finishing Grand Finalists in 2004–05 and claiming the club championship, Bonnyrigg were not offered a position in the 2006 NSW Premier League season.