They finished 20th in season 2008–09 and reached the quarter-finals of the Ernest Armstrong Second Division Cup being beaten by eventual finalists Sunderland RCA.

The ground has seen widespread development – security fencing has been erected and the Teesdale Park site now has a teen shelter, fitness trail, nature trail and some wooden owl statues funded from a National Lottery Community spaces lottery grant to enable the site to be developed for the community.

In season 2015–16 they finished 7th in Division 2 and reached the semi-finals of the North Riding Cup being defeated by Middlesbrough FC the winners.

Their U16 girls competed in the Russell Foster Premier Division, winning the league shield and North Riding County Cup in their first season.

[5] In June 2024, the committee of Thornaby FC led by Trevor Wing voted to remove the entire female section of the club, ranging from under 7s to the women's team.

[7] People expressing support for the Thornaby women included politician Andy McDonald, footballer Beth Mead and life peeress and Olympic wheelchair athlete Tanni Grey-Thompson.