Bangkok United

The club was originally formed as Bangkok University in 1988 as a team for students at Bangkok University's Rangsit Campus in Pathum Thani province, just north of Bangkok, the club have gone from provincial football, and winning university-level titles, to being a professionally run outfit in the top flight in the Thai Premier League.

Along the way to the Top flight, they won the Thai Division 1 League in 2003 and even captured the 2006 Thailand Premier League title against the odds, which has also enabled the club to taste life in the AFC Champions League.

The club appeared in the 2007 AFC Champions League but played their home matches in the group stage away from the club's home. The first match on 7 March 2007 against Korea's Chunnam Dragons was played at the Thai-Japanese Stadium in Bangkok and the second, on 25 April against Indonesia's Arema Malang, was played at the Thai Army Sports Stadium in Bangkok, where tickets cost 50 baht. Both matches ended 0–0. The third, against Japan's Kawasaki Frontale, was played at the Thai Army Sports Stadium. The team has failed to qualify for the next stage.^[]

Bangkok University always used the Bangkok University Stadium for domestic competitions until the end of the 2008 Thailand Premier League season. The stadium was based on the Bangkok University's Rangsit Campus and had a capacity of 5,000, currently used by the club as a training ground.^[]

At the start of the 2009 season, the club changed their club name from Bangkok University to Bangkok United with a partnership with the Bangkok Metropolitan Administration (BMA) to be in line with the Football Association of Thailand's (FAT) new regulations that all teams in the top flight must be registered as limited companies. They also changed their club nickname to 'Bangkok Angels', and were officially unveiled on 4 March 2009.

Also, with this name change, the club relocated to a new stadium, the Thai-Japanese Stadium which was based further center in Greater Bangkok. The stadium is for multi-use, such as athletics and football and holds a capacity of 10,320. The stadium was also shared by Thai Port whilst they waited for their stadium to be upgraded. On 31 May 2009, after 5 home matches, the club returned to using Bangkok University Stadium as a home ground again until the renovations of Thai-Japanese Stadium were finished before the start of 2009 season's second leg in August. Bangkok United narrowly escaped relegation in the 2009 Thai Premier League.^[]

For the 2010 Thai Premier League season, Bangkok United was backed by Thai media company True Corporation. The early season optimism did not last long and the 2010 campaign ended in relegation. The Angels only won two home games all season. Rather surprisingly the two victories were against high-fliers Buriram PEA and Chonburi. Incidentally, both victories were achieved at the Bangkok University Stadium after they switched their home fixtures from the Thai-Japanese Stadium to the university midway through the season.

In the 2015 season, the club move to the Thammasat Stadium to pass the assignment of AFC Champions League stadium regulation. Brazilian head coach Alexandré Pölking improved the club during the season before to finish fifth in the Thai Premier League. Since 2015, the club became one of big club in Thailand league. The team under Pölking has been widely praised for instilling an energetic, play with a galivanting style of attacking football reaching levels of intensity that are rarely seen in this league.

Entering the 2016 season, Bangkok United ended in second place in the Thai League 1 and created history by claiming 75 points – the club's highest points in a single season. The team missed an opportunity to qualify for the 2016 AFC Champions League by failing to beat Malaysian club Johor Darul Ta'zim in the qualifying play-offs match.

In 2017, Bangkok United started winning 1–0 against Navy on the opening day in the league. Nevertheless, The team managed to end their season on a high note by finishing third in the Thai League 1 and reaching the 2017 Thai FA Cup final, losing 4–2 to Chiangrai United. Despite coming third, The club managed to be the league highest scorers with 97 goals from 34 games, making them the most productive team in the division by far and finishing just one short of breaking a record set by Buriram United themselves in 2015. A big contributing factor to this was the goals from attacking duo Dragan Bošković and Mario Gjurovski who netted 50 goals between them.

In the 2018 season, Bangkok United ended in second place with 71 points.

In the 2022–23 season, Bangkok United ended in second place with 62 points and also ended up as the runners-up in the 2022–23 Thai FA Cup.

In 2023, after a long 15 years absent, Bangkok United returns to the AFC Champions League group

stage being drawn in Group F with Jeonbuk Hyundai Motors, Kitchee SC and Lion City Sailors. On 20 September 2023, the club plays its first AFC Champions League match away from home coming back from 1–0 down to eventually winning the game to 1–2 with goals from club captain, Everton and Thitiphan Puangchan at the Jalan Besar Stadium. On 4 October 2023, Bangkok United secured a famous 3–2 home victory against Korean champions, Jeonbuk Hyundai Motors taking them to the top of the group with 6 points on matchday 2. Bangkok United went on to become group leaders with 4 wins, 1 draw and 1 lost, being 1 point ahead of Jeonbuk Hyundai Motors thus seeing the club qualifying to the round of 16. Bangkok United then faced off against 2022 J1 League champions, Yokohama F. Marinos where both team settled for a 2–2 draw in the first leg. While in the second leg, Bangkok United managed to hold on Yokohama F. Marinos until extra-time where they conceded a late penalty in the 120+2th minute. Bangkok United lost 3–2 on aggregate and was knocked out by the eventual runners-up of the tournament.

Bangkok United ended up the 2023–24 season in second place with 61 points where the club won the 2023–24 Thai FA Cup in a penalties shootout against Dragon Pathumwan Kanchanaburi. Bangkok United then qualified to the 2024–25 AFC Champions League Elite qualifying play-offs facing against Chinese club Shandong Taishan on 13 August 2024. However, Bangkok United failed to qualified to the 2024–25 AFC Champions League Elite after losing 4–3 on penalties shootout thus seeing the club entering the 2024–25 AFC Champions League Two being drawn in Group G alongside Singaporean club Tampines Rovers, Hong Kong club Lee Man and Vietnamese club Nam Định. Bangkok United went on to top the group in the AFC Champions League Two with 13 points seeing the team advance to the round of 16.