| Year | Club Name | Why? | | Year | Club Name | Why? |
 | 2010 | Boston United | Promoted via play-offs from Northern Premier League |  | 2018 | Chester | Relegated after finishing 23rd in National League |
 | 2012 | Brackley Town | Promoted as champions of Southern League |  | 2018 | Hereford | Promoted as champions from Southern League Premier Division |
 | 2012 | Bradford (Park Avenue) | Promoted via play-offs from Northern Premier League |  | 2019 | Farsley Celtic | Promoted as champions from Northern Premier League |
 | 2015 | AFC Telford United | Relegated after finishing 23rd in Conference |  | 2019 | Gloucester City | Transfer from National League South |
 | 2015 | Alfreton Town | Relegated after finishing 21st in Conference |  | 2019 | Kettering Town | Promoted as champions from Southern League Premier Central Division |
 | 2015 | Curzon Ashton | Promoted via play-offs from Northern Premier League |  | 2020 | AFC Fylde | Relegated after finishing 23rd in National League |
 | 2016 | Darlington | Promoted as champions from Northern Premier League |  | 2020 | Chorley | Relegated after finishing 24th in National League |
 | 2016 | Kidderminster Harriers | Relegated after finishing 23rd in National League |  | 2022 | Banbury Town | Promoted as champions from Southern League Premier Division Central |
 | 2017 | Blyth Spartans | Promoted as champions of Northern Premier League |  | 2022 | Buxton | Promoted as champions from Northern Premier League Premier Division |
 | 2017 | Leamington | Promoted via play-offs from Southern Premier League |  | 2022 | King's Lynn Town | Relegated after finishing 21st in National League |
 | 2017 | Southport | Relegated after finishing 23rd in National League |  | 2022 | Peterborough Sports | Promoted via play-offs from Southern League Premier Division Central |
 | 2017 | Spennymoor Town | Promoted via play-offs from Southern League Premier Division |  | 2022 | Scarborough Athletic | Promoted via play-offs from Northern Permier League Premier Division |