| Year | Club name | Why? | | Year | Club name | Why? |
![](/media/images/user-images/1309/Chelmsford_City.png) | 2008 | Chelmsford City | Promoted as champions of Isthmian League | ![](/media/images/user-images/1309/Worthingfclogo.png) | 2022 | Worthing | Promoted as champions from Isthmian League Premier Division |
![](/media/images/user-images/1309/200px-Eastbourne_Borough_FC_logo.svg.png) | 2011 | Eastbourne Borough | Relegated after finishing 23rd in Conference | ![](/media/images/user-images/1309/Aveleyfc.png) | 2023 | Aveley | Promoted via play-offs from Isthmian League Premier Division |
![](/media/images/user-images/1309/150px-Bath_City_FC.png) | 2012 | Bath City | Relegated after finishing 23rd in Conference | ![](/media/images/user-images/1309/Maidstone_United_Crest_New.png) | 2023 | Maidstone United | Relegated after finishing 24th in National League |
![](/media/images/user-images/1309/180px-Hemel_Hempstead_Town_F.C._logo.png) | 2014 | Hemel Hempstead Town | Promoted as champions from Southern League | ![](/media/images/user-images/1309/Torquay_United_Logo_1899.png) | 2023 | Torquay United | Relegated after finishing 21st in National League |
![](/media/images/user-images/1309/180px-St_albans.png) | 2014 | St Albans City | Promoted via play-offs from Southern League | ![](/media/images/user-images/1309/Truro_City_FC.png) | 2023 | Truro City | Promoted via play-offs from Southern League Premier League South |
![](/media/images/user-images/1309/180px-Hampton__Richmond_Borough_F.C._logo.png) | 2016 | Hampton & Richmond Borough | Promoted as champions from Southern League | ![](/media/images/user-images/1309/Weston-super-Mare_AFC_logo.svg.png) | 2023 | Weston-super-Mare | Promoted as champions from Southern League Premier League South |
![](/media/images/user-images/1309/150px-WellingUnitedBadge.png) | 2016 | Welling United | Relegated after finishing 24th in National League | ![](/media/images/user-images/1309/Boreham_Wood_F.C._logo.svg.png) | 2024 | Boreham Wood | Relegated after finishing 21st in National League |
![](/media/images/user-images/1309/160px-Chippenham_Town_F.C._logo.png) | 2017 | Chippenham Town | Promoted as champions of Southern League | ![](/media/images/user-images/1309/Chesham_United_F.C._logo.png) | 2024 | Chesham United | Promoted as champions from Southern League Premier Division South |
![](/media/images/user-images/1309/Slough_Town_FC_logo1.png) | 2018 | Slough Town | Promoted via play-offs from Southern League | ![](/media/images/user-images/1309/200px-Dorking_Wanderers_F.C._logo.png) | 2024 | Dorking Wanderers | Relegated after finishing 23rd in National League |
![](/media/images/user-images/1309/Tonbrdige_angels_fc.png) | 2019 | Tonbridge Angels | Promoted via play-offs from Isthmian League | ![](/media/images/user-images/1309/Enfield_Town_F.C._logo.png) | 2024 | Enfield Town | Promoted via play-offs from Isthmian League Premier Division |
![](/media/images/user-images/1309/Farnborough_FC.png) | 2022 | Farnborough | Promoted via play-offs from Southern League Premier Division South | ![](/media/images/user-images/1309/Hornchurchfc.png) | 2024 | AFC Hornchurch | Promoted as champions from Isthmian League Premier Division |
![](/media/images/user-images/1309/Weymouth-edit.png) | 2022 | Weymouth | Relegated after finishing 22nd in National League | ![](/media/images/user-images/1309/salisbury_city_fc.png) | 2024 | Salisbury | Promoted via play-offs from Southern League Premier Division South |