Rayong United

The club was founded in 2005 but took their first steps on the Thai professional league setup in 2007 when they played in Division 2 which was at the time a league that was at step 3 and was a national league, unlike today's system of regional leagues at step 3. Prachinburi finished in third position in their debut season but missed out on promotion as only two clubs at the time were promoted.

In 2008, Prachniburi built on their debut season and won the 2008 Thailand Division 2 League (Group A) championship and the end of season playoff match against the Army Welfare team to be crowned overall champions and promotion to the 1st Division.

The club settled very well into life in a high division and came a creditable 5th place in the 2009 Thai Division 1 League campaign, staying well clear of the relegation places but still rather short on any challenge to promotion to the Thai Premier League. Things were overall looking rather well and the club seemed to be in a healthy position to build on again for the next campaign.

But 2010 would see the lowest point in Prachinburi's history to date. The local authority entered a new club, Prachinburi United, into the Regional League more or less telling Prachinburi that they weren't welcome anymore. The off-field issues appeared to move on field as well and the club came in 13th, a position that would normally keep a team in the same division, but the Thai FA decided to introduce end-of-season playoffs to determine relegation and promotion between Division 1 and the Regional League as part of a league expansion shakeup.

In the playoff's, Prachinburi were drawn to play Rangsit University JW whom themselves had struggled in earlier playoff matches at Regional League level. Prachinburi duly lost 1:0 over two legs and were relegated.

With relegation confirmed, Prachinburi in theory should have joined the Regional League Central-East Division, but due to the football associations policy of one province per league, the club had to move into the Bangkok Area Division as Prachinburi United were already allocated the Central-East spot.

In early 2012 the club relocated to Rayong and would play at the Klaeng District Stadium. Thai web forums would also refer to the club as Prachinburi (Rayong United) FC, which would suggest that the club was preparing to play football in the province on a full-time basis. The move out of their home province seems to have been forced with the local government authority getting behind the Prachinburi United football club that was formed in 2010.^[]

The relocation proved successful as they were promoted to Division 1 after finishing second in the Bangkok Regional league and then in the same place in the playoffs.

In 2022, Pluakdaeng United competed in the Thai League 3 for the 2022–23 season. It is their 16th season in the professional league. The club started the season with a 1–2 home defeat to Pattaya Dolphins United and they ended the season with a 0–2 away defeat to Pattaya Dolphins United. The club has finished 7th place in the league of the Eastern region. In addition, in the 2022–23 Thai League Cup Pluakdaeng United was defeated 0–1 by Chiangmai United in the qualification play-off round, causing them to be eliminated.