Coventry-born Ison joined his local team United as a youngster in 2016 after spending time at the Gordon Strachan Football Academy and made several appearances in the Midland League during the season, attracting interest from several professional clubs in the process.

In July 2017, he signed a one-year deal with SkyBet League One side Bristol Rovers and joined their academy side.

​His first season barely got started, however, after Ison suffered a serious ACL injury whilst playing for Rovers' reserves when he was on the cusp of the first team.

Despite a long lay-off recovering, Ison was offered a one-year extension by the Pirates in the summer of 2018.

​After failing to make the breakthrough at the Memorial Stadium during the following season, Ison was one of several players released by the club in May 2019, returning to his West Midlands roots and linking up with Southern Premier League Central newcomers Nuneaton Borough.

However, he elected to re-join Coventry United the following month without making an appearance for Boro

​He was an ever-present for United in the 2019/20 season before the season was brought to a halt and subsequently voided in April 2020 due to the coronavirus pandemic.

​After agreeing to remain at Coventry for the 2020/21 season, Ison was again an ever-present at the Butts Park Arena with 11 starts until the season was once again brought to a halt due to the pandemic once more in November 2020.

​With grassroots football on hold for the foreseeable future, Ison elected to join the Pitmen after a move for the player by Hednesford manager Keenen Meakin-Richards.