FC Haka U20

Haka has historically had close ties with the paper industry in the Valkeakoski area, and is still sponsored by UPM Kymmene.

The club was founded as Valkeakosken Haka in 1934, with significant support from paper entrepreneur Juuso Walden. In 1949 it was promoted to Finland's top division Mestaruussarja (now known as Veikkausliiga), and in 1955 won the inaugural Finnish Cup.

The 1960s was the most successful era in Haka's history, with the club winning both the league and cup three times, including the first double in Finnish football history in 1960. The club was relegated in 1972, but came straight back, and won the double again in 1977.

The club's name was changed to FC Haka in the early 1990s. Haka won the title again 1995, but was relegated the next season. Keith Armstrong was hired as the new coach, and the club came straight back again, winning three straight championships from 1998 to 2000. Goalkeeping legend Olli Huttunen succeeded Armstrong as coach in 2002, and led the club to the championship (2004) and two cups (2002 and 2005).

Haka's best performance in UEFA competition was in the 1983–1984 season when they reached the quarterfinals of the Cup Winners' Cup, losing to eventual champions Juventus 0–2 on aggregate. The club was involved in European competition every year between 1998 and the 2008–2009 season.

In subsequent years the club's financial situation deteriorated on two occasions, like many other small market teams in Veikkausliiga. The first was the 2008–09 season when a group of investors led by local businessman and restaurateur Sedu Koskinen (owner and founder of a nationwide night-club chain) formed FC Haka Oy to help an essentially bankrupt team to finish the season. In 2010 Sedu Koskinen left, after having invested around €1 million of his own money in the club.

Since then the club's operations have been reformed to make it financially sounder. The team, having been one of the most successful and prestigious in Finland, ran at a loss for several years during the 2000s. At the same time the overall global economic situation and sponsorship payments from UPM Kymmene diminished. This forced the club to rationalize its operations and adopt a new role as one of the smaller clubs in Finnish top flight football. The situation at the start of 2012 Finnish football season was described by the chairman and board members as difficult but stable.

These times of financial struggles saw the club move from perennial championship challengers to a team usually poised for relegation. In both 2011 and 2012 pre-season media predictions placed the club in the bottom three. Haka finished last in the standings in 2012 and were relegated to the second tier (then known as Ykkönen, but rebranded in 2023 as Ykkösliiga). The club finally won promotion back to the Veikkausliiga for the 2020 season following a near perfect campaign in the 2019 Ykkönen, where they dropped only 7 points and finished 19 points ahead of second-place TPS.