| Clubname: | AC Allianssi |
| Fullname: | AC Vantaan Allianssi |
| Ground: | Pohjola Stadion Vantaa |
| Capacity: | 4,700 |
| Season: | 2005 |
| Position: | Veikkausliiga, 7th |
| Leftarm1: | F1771D |
| Body1: | F1771D |
| Rightarm1: | F1771D |
| Shorts1: | FFFFFF |
| Socks1: | FFFFFF |
| Pattern B2: | _unknown |
| Leftarm2: | FFFFFF |
| Body2: | FFFFFF |
| Rightarm2: | FFFFFF |
| Shorts2: | FFFFFF |
| Socks2: | FFFFFF |
AC Vantaan Allianssi (or AC Allianssi) was a Finnish football club, based in the town of Vantaa.
Allianssi were a club in decline, following an 8–0 defeat at fellow Finnish club FC Haka. The match was believed to have been fixed by a Belgian-Chinese betting cartel, which took control of the club in summer 2005. A subsequent police investigation failed to find sufficient evidence of match fixing though.[1] In 2006, a former managing director, Olivier Suray, admitted that the notorious match was fixed. However, he accused Chinese owner Ye Zheyun for fixing.[2]
On 11 April 2006, club chairman Erkki Salo announced that the club would be filing for bankruptcy with immediate effect.
| Season | League | Finnish Cup | Finnish League Cup | Top goalscorer | Manager | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Div. | Pos. | Pl. | W | D | L | GS | GA | P | Name | League | |||||
| 2002 | 1st | 4th | 29 | 12 | 5 | 12 | 39 | 44 | 41 | Semi Final | - | Petteri Kaijasilta | 13 |  Ari Tiittanen | |
| 2003 | 1st | 6th | 26 | 10 | 6 | 10 | 43 | 44 | 36 | Runners Up | - | Ari Tiittanen | |||
| 2004 | 1st | 2nd | 26 | 14 | 6 | 6 | 36 | 28 | 48 | Quarter Final | Winners | Ari Tiittanen | |||
| 2005 | 1st | 7th | 26 | 8 | 10 | 8 | 33 | 41 | 34 | Winners | Ari Tiittanen /  Thierry Pister | ||||
| Season | Competition | Round | Club | Home | Away | Aggregate |
|---|---|---|---|---|---|---|
| 2003 | UEFA Intertoto Cup | First round |  Hibernians | 1–0 | 1–1 | 2–1 |
| Second round |  Akratitos | 0–0 | 1–0 | 1–0 | ||
| Third round |  AC Perugia | 0–2 | 0–2 | 0–4 | ||
| 2004–05 | UEFA Cup | First qualifying round | Glentoran | 1–2 | 2–2 | 3–4 |
| 2005–06 | UEFA Cup | First qualifying round |  CS Pétange | 3–0 | 1–1 | 4–1 |
| Second qualifying round |  Brann | 0–2 | 0–0 | 0–2 |