TOT is a founding member of the Thai Premier League in 1996/97 season and came second in the regular season championship but were defeated byBangkok Bank FC in the semi-final Championship Playoffs. This has so far proved to be TOT's best campaign.
Besides being relegated to the Thailand Division 1 League in 2003, they have more or less been a middle-ranking team, yet to break into the top four since 1996/97. They have been relegated on two occasions, bouncing back to the top flight at the first time of asking and claiming the Division One championship in the 2003/04 season.
Notable other achievements have been winning the Thailand FA Cup in 1993 and the now defunct Pro League in 2006 with their reserve team.
Ownership dispute
In 2010 the club was taken over by Piroj Suwannachavee and renamed the team as TOT-CAT FC. CAT, another Thai government telecommunication company, joint the club namely as a co-owner. In 2011 The Football Association of Thailand (FAT) and Thai Premier League (TPL) were called to settle a dispute between original owners TOT and the newly formed TOT-CAT FC. They ruled in favor of TOT and the club will revert back to the original. Nowadays TOT changes their football club's name officially to TOT SC (TOT Sport Club)
Club Home
At the start of the Thai Premier League 2009 season, TOT relocated from the central Nonthaburi Province to the Western provinceKanchanaburi to try and generate a bigger fan base. Nonthaburi is situated directly north west of Bangkok.
They left their previous Namkaejon Stadium for the 13,000 capacity Kleab Bua Stadium, which would be used as their home stadium from 2009 onwards.
Their stay in Kanchanaburi only lasted one season and they returned to Nonthaburi Province to ground share with Muangthong United F.C. at the Yamaha Stadium. The move failed to attract new supporters and TOT-CAT fans were regularly outnumbered by the away support at their home games during the 2010 Thai Premier League. They used the Yamaha Stadium as a home until the end of the first leg of TPL 2011. After a few years of construction, their newly 5000-seat stadium called TOT Stadium (located in TOT HQ., Laksi District) is completed and ready for use as the home stadium since the TPL 2011 second leg. The club training ground and club office is located at TOT Training Center or TOT Academy in Nonthaburi province around 15 kilometres away from their home stadium.
Asian Competition
TOT have only played in Asian competition once, representing Thailand in the 1994–95 Asian Cup Winners' Cup after winning the 1993 Thai FA Cup. In the first round they met East Bengal of India, they duly dispatched them 4:1 in the first leg and were awarded a walkover tie in the return when East Bengal withdrew. In the 2nd round they met Vietnamese opposition Quang Nam Danang winning through 8:2 over two legs. TOT seemed to be taking to Asian competition rather easily at this point and in the last roudn before East Asia met West Asia they came up against Kuala Lumpur FA of Malaysia. This was a much tougher match and they came through in extra time. This took TOT through to the semi-finals, held in the UAE, where they would meet Japanese powerhouse Yokohama Flügels. Flügels proved to be one step to far, losing 4:2 in the one legged neutral venued matchup. But, TOT still had one game to go in the 3/4 place match against not only Saudi giants, but Asian giants Al Ittihad. The match went to penaltied with Ittihad winnign 4:2.
