Balmain had garnered interest to merge with the Parramatta Eels and Gold Coast Chargers while Western Suburbs had talked with the Canterbury-Bankstown Bulldogs and Penrith Panthers.

This was a controversial selection because of animosity from Balmain supporters due to an incident involving Ellery Hanley in the 1988 Grand Final (see Terry Lamb entry for more information).

Early in the season, key players Craig Field and Kevin McGuinness tested positive to prohibited drugs and both received a one-year suspension.

From the grand final team, Mark O'Neill, and Pat Richards signed with English clubs (Leeds Rhinos and Wigan Warriors respectively).

As defending premiers, the Wests Tigers began the season by travelling to England to play English Super League champions the Bradford Bulls.

Other players to leave at the end of the 2006 season were John Skandalis, Anthony Laffranchi and Shane Elford – all members of the 2005 grand final team.

[13] On an administrative level, in April 2008, CEO Steve Noyce announced he was standing down from his role[14] and was eventually replaced by Scott Longmuir at the end of the 2008 season.

Longmuir was aligned with then chair of the board Kevin Hammond (from the Wests side of the JV) in wanting Sheens to focus on the football, and for the office of the CEO to run the club as a business.

On 25 September 2012, in a press conference CEO Stephen Humphreys and Chairman Dave Trodden announced that Tim Sheens would not be the head coach in 2013[21] in a restructuring of the club.

In September 2014, with the ongoing financial troubles at Balmain Leagues Club (who by this stage had defaulted on payments to the Wests Tigers) a new shareholder agreement was put into place with the supervision of the NRL.

The agreement was made that Wests Ashfield Leagues Club would be offered first call to buy all the shares, pay off the NRL debts and become sole owner.

The club moved to appoint Jason Taylor (who had played for Western Suburbs between 1990 and 1993) on 29 September 2014[28] for the oncoming 2015 season, following guidance of CEO Meyer, and supported by Chair Go.

After a string of mixed results, including two wins against rivals South Sydney, but a poor loss to Newcastle left Wests Tigers 9th on the ladder, a point away from the top 8 at the end of the full season.

In April 2017, the "Big Four" story began from the media after there were reports Mitchell Moses, James Tedesco, Aaron Woods and Luke Brooks had all been looking to leave the club over issues with the salary cap and uncertainty with the playing roster heading into 2018.

During a press conference with Coach Cleary late on in April, a single near throwaway comment was made by Ivan about how he approached his first meeting with the players.

[43] Towards the end of the season, rumours and news swirled around the press and media about Ivan Cleary leaving the Wests Tigers to return to Penrith Panthers.

Head of Football Kelly Egan left the club prior to Pascoe's return as did chairman Marino Go and Chief Operating Officer Ryan Webb.

Justin Pascoe was re-instated back to his role as CEO on 26 June 2019[49] On 12 March 2019[50] the club announced to the media and press that former NSW State premier Barry O'Farrell had been appointed as chair of the board of directors, replacing Marina Go, who had come to the end of her tenure.

A second round win against the free running New Zealand Warriors a week later in front of nearly 10,000 fans in Campbelltown again in wet conditions was a good start to the season.

[60] In round 5 of the competition, there was a lot of emotion at Leichhardt Oval, with the club paying tribute following the death of Western Suburbs legend, Tommy Raudonikis.

In round 9 of the 2021 NRL season, the club played at Campbelltown Sports Ground and they wore specially designed jerseys as part of a celebration into the life of Tommy Raudonikis OAM.

In June 2021, it was announced that Premiership winning coach, Tim Sheens, would be returning to the club in the capacity of Head of Football Performance [64] focussing on pathways, development and talent identification.

[67] The 2022 NRL season began with key playmakers Adam Doueihi and Daine Laurie sidelined through injury, but with new signing Jackson Hastings moving into the number 7 position, with Luke Brooks shifting to 6.

[68] Brett Kimmorley was then handed the role as interim head coach until the end of the season whilst the football club searched for a full time replacement.

[74] On 4 April 2023, the club came under criticism from fans and the media after they released a commemorative ANZAC jersey with a stock image of American soldiers on the front and back.

[76] Round 12 saw the Wests Tigers biggest win of the season, and signs of a recovery of the club, with a score of 66-18 against the North Queensland Cowboys, with a 100% conversion of all eleven tries.

The Wests Tigers Jersey Flegg Cup team also finished with the Wooden Spoon in their respective competition which capped off a bad year for the club.

The review was conducted by former NRL chief financial officer Tony Crawford and managing director of Cooperage Capital Pty Ltd Gary Barnier.

[87] Two new board members, Danny Stapleton and David Gilbert, were appointed, representing shareholders Balmain Tigers RLFC and Holman Barnes Group respectively.

[104] Some notable supporters of the club include Russell Arnold,[105] Jimmy Barnes,[106] Ash Barty[107] Tim Cahill, Michael Clarke,[108] Vic Darchinyan,[105] Anthony Field,[109] Dawn Fraser,[110] Daniel Geale,[105] Julie Goodwin,[111] Sam Konstas, Jimmy Little,[112] Paul Murray,[105] Barry O'Farrell,[113] Dominic Perrottet,[114] Jordan Thompson,[115] and Harry Triguboff.