Ratchaburi FC

Ratchaburi Football Club was founded in 2004 and then joined 2006 Thailand Division 2 League. Ratchaburi able to win the Thailand Division 2 League title, get the right to compete in the 2007 Thailand League Division 1.

The 2007 League Division 1 season has a total of 24 teams participating in the competition, divided into 2 groups, 12 teams each and at the end of the competition, the top five of each group will be relegated to the competition. Thai League Division 2, the club did not perform very well, finished the season with the last place in the group A table.

In 2008, Ratchaburi finished in seventh place out of the 11 participating teams, causing the team to relegate, but due to the Football Association of Thailand reshaping the competition in the season 2009 makes Ratchaburi continue to compete in the Thai League Division 2

2009 Regional League Division 2 is the first season to compete in a 5-region zone system, Ratchaburi Football Club is organized in the Central and Eastern region. The club finished the season with 9th place out of 12 participating teams.

In 2010, the Nitikarnchana family decided to take over Ratchaburi Football Club, which was then in the Regional League Division 2. In 201, the club won the Central-East Division before earning promotion to Division 1 after winning Group A of the Division 2 playoffs.

Prior to the 2012 season, Ratchaburi was sponsored by the Mitr Phol Group and announced the change of the club's name to Ratchaburi Mitr Phol, with Sorraaut Klinprathum as the club's president, Boonying Nitikarnchana as the club's vice president and Thanawat Nitikarnchana is the team manager and Somchai Maiwilai is a head coach.

Whilst in Division 1, Ratchaburi made it to the 2012 Thai League Cup final where they lost 4–1 to Buriram United. The final was most remembered for the farcical circumstances that Ratchaburi faced as they didn't have any substitutes on the bench due to having several ineligible loanees from opponents Buriram United. Ratchaburi never stood a chance as Buriram won the final at a canter.

In the following season, Ratchaburi flew through the 2012 Thai Division 1 League winning the title on their way to the top flight league.

In the first season of the Ratchaburi in top-tier league is considered unsuccessful, ranked 15th out of the total of 18 teams, but due to the problem of scrambling for the rights of the team between Sisaket and Esan United escalate, The Thai League company decided to increase the top 20 teams in TPL, resulting in the Thai Premier League competition in 2013 season, there was only one relegation team, Pattaya United (17th place).

In 2014 season, Ratchaburi reacted by appointing former Girona manager Ricardo Rodríguez as their new manager for the new 2014 Thai Premier League season. The Dragons finished comfortably in 4th place.

After participating in the top league for 3 years, Ratchaburi Mitr Phol has a project to build its own football stadium. The stadium started construction in 2015 and opened for the first time in mid-2016. In 2016 the club moved to new ground, Mitr Phol Stadium and the club appointed Robert Procureur as the club technical director.

In 2016, Following the death of King Bhumibol Adulyadej, the Football Association of Thailand cancelled the remaining league and cup season on 14 October 2016, with three rounds remaining. Ratchaburi then was announced as the 2016 Thai FA Cup champions where the title was shared among Chainat Hornbill, Chonburi and Sukhothai who was then in the semi-finals. Ratchaburi then finished the league in 6th place.

In the 2017 season, Ratchaburi continued to progress under Pacheta's stewardship, and with a team containing half blood players Philip Roller and Kevin Deeromram reached league finish as 6th place as well as reaching the semi-final of the League Cup losing 0–1 to Chiangrai United at Supachalasai Stadium.

In 2018 season, a dismal run of form saw the team slip to the bottom of the league table. Ratchaburi finished the season in 12th place with 43 points, they were one point adrift from safety.

In 2019, after beating Buriram United in the semi-final, Ratchaburi reached the 2019 Thai FA Cup Final for the first time in their history. In the final, played at Leo Stadium, Ratchaburi lost to Port 1–0, with a goal by Sergio Suárez scored in second half. Ratchaburi made it becoming the runner-up of the competition.

In 2021, Ratchaburi qualified to 2021 AFC Champions League for the first time in club history after finishing the position in top four in the 2020–21 season. Ratchaburi was then placed in group G alongside South Korean Pohang Steelers, Japanese club Nagoya Grampus and Malaysian club Johor Darul Ta'zim. On 4 July 2021, the club then registered their first ever points in the tournament after a goalless draw against Pohang Steelers.

In 2022, Ratchaburi ended their 10-years sponsorship with Mitr Phol where the club name was shorten back to Ratchaburi. The club stadium has also renamed to Dragon Solar Park after the solar panel manufacturing company Dragon Solar.