Telstar

When professional football was introduced in the Netherlands, both IJVV Stormvogels and their neighbouring club, VSV, played in the professional leagues. VSV won the KNVB Cup in 1938. Due to financial difficulties at both clubs, their professional teams were merged on July 17, 1963. The new club was named Telstar, after the Telstar communication satellite launched that year. Both Stormvogels and VSV continued separately as amateur clubs.

Telstar was immediately promoted to the Eredivisie following the 1963–64 season and remained in the top flight for 14 consecutive years. The mid-1970s marked the club's most successful era, with top-flight finishes of sixth in 1973–74, seventh in 1974–75, and ninth in 1975–76. However, performances declined thereafter. The club finished 14th in 1976–77, and in the 1977–78 season, placed 18th and last, resulting in relegation to the Eerste Divisie. The squad during that season included future Bayern Munich and Manchester United manager Louis van Gaal.

From 1978 onwards, Telstar competed in the Eerste Divisie and did not return to the top flight for nearly five decades. The club reached the promotion play-offs in 1978–79 and again in 1981–82, when it recorded its highest post-relegation finish of fourth place. In the mid-1980s, Telstar entered into a partnership with Ajax and functioned informally as a satellite club. During this period, Michel van Oostrum joined from Ajax, and former Ajax assistant coach Cor van der Hart took over as Telstar manager for the 1987–88 season. In 1991–92, the club made its best-ever run in the KNVB Cup, reaching the semi-finals before losing 3–0 to Roda JC.

Telstar made a strong push for promotion in the 1993–94 season, finishing fifth and narrowly missing out by a single point to RKC Waalwijk. Further top-half finishes came in 1991–92 and 2001–02, with the club ending both seasons in seventh place. In 2000–01 and 2004–05, Telstar again participated in the promotion play-offs but failed to advance.

In 2001, Telstar and Stormvogels entered into a renewed partnership, forming Stormvogels Telstar. The merger was intended to strengthen the club's youth development system and benefit from training compensation mechanisms. However, the partnership did not yield the expected results. Few players from the youth academy advanced to the professional first team, and the anticipated financial returns from development fees failed to materialise. As a result, the collaboration was discontinued on 1 July 2008, and the club reverted to its original name, Telstar.

In 2008–09, Telstar reached the play-offs once more as winners of the third period title but were eliminated in the first round by MVV. A resurgence came in the 2017–18 season under head coach Mike Snoei, with Telstar finishing sixth—its highest league position since 1993–94—and reaching the quarter-finals of the KNVB Cup, where they were defeated by Feyenoord.

In 2018–19, the club finished 14th but made another notable KNVB Cup run, reaching the round of 16 before a narrow 4–3 loss to Ajax.

After the 2024–25 season, Telstar finished seventh in the Eerste Divisie, earning a place in the promotion play-offs. In the first round, the club defeated ADO Den Haag 3–0 on aggregate to advance to the semi-finals, where they faced Den Bosch. After a 1–1 draw over two legs, Telstar secured a 2–1 aggregate victory with a 109th-minute goal in extra time from Danny Bakker. In the final, Telstar faced Willem II, which had finished 16th in the Eredivisie after winning the Eerste Divisie the previous season. Following a 2–2 draw in the first leg in Velsen, Telstar won the second leg 3–1 at the Koning Willem II Stadion, securing promotion to the Eredivisie for the first time since 1978.