The club was established in 1948, taking over from Stewarts & Lloyds as the main team in the town. The new team contained a mix of Stewarts & Lloyds and new players, and took over from Stewarts and Lloyds in the United Counties League. Their first league match saw them win 5–1 against Wellingborough Town. They went on to win back-to-back league titles in 1950–51 and 1951–52, after which they joined the Midland League as it was expanded to 24 clubs, with the reserve team taking the club's place in the United Counties League. Having signed sixteen new players, many of whom had played in the Football League, they went into the final match of the season on 1 May 1953 sitting level at the top of the table with Nottingham Forest reserves, who were the visitors to Corby for the final match. In front of a crowd of 6,294, Corby lost the match and Forest reserves won the title by two points. In 1954–55 the club reached the first round of the FA Cup for the first time, losing 2–0 at home to Watford.