Teekkarireserviläiset – TERES ry is a reservist association for members of Aalto University Student Union. Teekkarireserviläiset was founded in March 9th, 1954 with the name of Teekkariupseerit (TRIUPS). The name was changed to Teekkarireserviläiset in March 29th, 1977. The association was listed to the register of associations in January 28th, 1999. During the registration the name of the association was changed to its modern format, Teekkarireserviläiset – TERES ry.