Isthmian League
Şampiyonlar > Yükselme

Ligin 1905'teki kuruluşundan bu yana, aşağıdaki kulüpler İngiliz futbol ligi sisteminde daha yüksek liglere yükseldi:
| Sezon | Yükselme |
| --- | --- |
1979-1986: Alliance Premier League
1986-2003: Football Conference
2003-2005: Football Conference National
2004-2015: Football Conference North
2004-2015: Football Conference South
2015-günümüz: National League North
2015-günümüz: National League South
| Sezon | Kulüp | Pozisyon | Yükseldiği lig |
| --- | --- | --- | --- |
| 1980-81 | Enfield Dagenham | 2. 8. | Alliance Premier League Alliance Premier League |
| 1984-85 | Wycombe Wanderers | 3. | Alliance Premier League |
| 1985-86 | Sutton United | 1. | Football Conference |
| 1986-87 | Wycombe Wanderers | 1. | Football Conference |
| 1987-88 | Yeovil Town | 1. | Football Conference |
| 1988-89 | Farnborough Town | 2. | Football Conference |
| 1989-90 | Slough Town | 1. | Football Conference |
| 1990-91 | Redbridge Forest | 1. | Football Conference |
| 1991-92 | Woking | 1. | Football Conference |
| 1993-94 | Stevenage Borough | 1. | Football Conference |
| 1994-95 | Slough Town | 2. | Football Conference |
| 1995-96 | Hayes | 1. | Football Conference |
| 1996-97 | Yeovil Town | 1. | Football Conference |
| 1997-98 | Kingstonian | 1. | Football Conference |
| 1998-99 | Sutton United | 1. | Football Conference |
| 1999-2000 | Dagenham & Redbridge | 1. | Football Conference |
| 2000-01 | Farnborough Town | 1. | Football Conference |
| 2001-02 | Gravesend & Northfleet | 1. | Football Conference |
| 2002-03 | Aldershot Town | 1. | Football Conference National |
| 2003-04 | Canvey Island Kettering Town Sutton United Thurrock Hornchurch Grays Athletic Carshalton Athletic Hayes Bognor Regis Town Bishop's Stortford Maidenhead United Ford United Basingstoke Town St Albans City Lewes (IL DOS) | 1. 9. 2. 3. 5. 6. 7. 8. 10. 11. 12. 13. 14.* 19.* 1.* | Football Conference National Football Conference North Football Conference South Football Conference South Football Conference South Football Conference South Football Conference South Football Conference South Football Conference South Football Conference South Football Conference South Football Conference South Football Conference South Football Conference South Football Conference South |
| 2004-05 | Yeading Eastleigh | 1. 3.* | Football Conference South Football Conference South |
| 2005-06 | Braintree Town Fisher Athletic | 1. 3.* | Football Conference South Football Conference South |
| 2006-07 | Hampton & Richmond B Bromley | 1. 2.* | Football Conference South Football Conference South |
| 2007-08 | Chelmsford City AFC Wimbledon | 1. 3.* | Football Conference South Football Conference South |
| 2008-09 | Dover Athletic Staines Town | 1. 2.* | Football Conference South Football Conference South |
| 2009-10 | Dartford Boreham Wood | 1. 4.* | Football Conference South Football Conference South |
| 2010-11 | Sutton United Tonbridge Angels | 1. 2.* | Football Conference South Football Conference South |
| 2011-12 | Billericay Town AFC Hornchurch | 1. 2.* | Football Conference South Football Conference South |
| 2012-13 | Whitehawk Concord Rangers | 1. 4.* | Football Conference South Football Conference South |
| 2013-14 | Wealdstone Lowestoft Town | 1. 4.* | Football Conference South Football Conference North |
| 2014-15 | Maidstone United Margate | 1. 3.* | National League South National League South |
| 2015-16 | Hampton & Richmond B East Thurrock United | 1. 3.* | National League South National League South |
| 2016-17 | Havant & Waterlooville Bognor Regis Town | 1. 2.* | National League South National League South |
| 2017-18 | Billericay Town Dulwich Hamlet | 1. 2.* | National League South National League South |
| 2018-19 | Dorking Wanderers Tonbridge Angels | 1. 4.* | National League South National League South |
2019-20: National League North veya South'a yükselme olmadı
2020-21: Yükselme iptal edildi
| 2021-22 | Worthing Cheshunt | 1. 5.* | National League South National League South |
| 2022-23 | Bishop's Stortford Aveley | 1. 4.* | National League North National League South |
| 2023-24 | Hornchurch Enfield Town* | 1. 3. | National League South National League South |
Yıldız işareti, kulübün play-off yoluyla yükseldiğini gösterir