T.E.K. United were formed in 1946. The club's best years were undoubtedly in the 1960s and 1970s when they routinely featured in the Leinster Senior League Senior Division, Ireland's third tier, winning the division on six separate occasions

The cub has reached the final of the FAI Intermediate Cup on five separate occasions (1963-64, 1964-65, 1971-72, 1973-74, and 1988-89), winning it twice, in 1965 against Glasheen and 1989 against St James's Gate. On Sunday 12th May 1963 they were also crowned FAI Junior Cup champions at Dalymount Park, beating Blackrock of Cork 3-1. Between 1964 and 1967, the club was managed by former Everton forward and Ireland international, Peter Farrell.

T.E.K's name, as detailed by their crest, is an allusion to the 1882 Battle of Tell El Kebir, in which the British Army under Anglo-Irish General Garnet Wolseley, 1st Viscount Wolseley recorded a resounding victory over Khedivate of Egypt forces of Ahmed ʻUrabi in what is now Egypt. While the club doesn't directly take its name from the battle, its name is linked to that of a nearby local dairy company, Sutton's T.E.K. Dairy, whose founder had fought at the battle. More direct references to the battle can be seen in T.E.K's badge, which features an image of the Spinx as well as the year 1882 and the words 'EGYPT' and 'TEL-EL-KEBIR'.

LEINSTER SENIOR LEAGUE MENS HONOURS LIST:

Leinster Senior League Senior Sunday Division: 6

1964-65, 1965-66, 1968-69, 1970-71, 1974-75, 1977-78

Leinster Senior League 1A Division: 1

2014-15

FAI Intermediate Cup Winners: 2

1964-65, 1988-89

FAI Junior Cup: 1

1962-63

EASTERN WOMENS FOOTBALL LEAGUE HONOURS: 

FAI Intermediate Winners: 1

2019

DWSL Premier League Cup Winners: 1

2019