Suffolk Wildlife Trust (SWT) describes itself as the county's "nature charity – the only organisation dedicated wholly to safeguarding Suffolk's wildlife and countryside." It is a registered charity, and its headquarters is at Brooke House in Ashbocking, near Ipswich. It was founded in 1961, and is one of 46 wildlife trusts covering the Great Britain and Northern Ireland. As of March 2017, it has 13,200 members, and it manages 3,120 hectares of land in 60 nature reserves, most of which are open to the public. It had an income of £3.9 million in the year to 31 March 2017.
Fulbourn Fen is a 27.3-hectare (67-acre) biological Site of Special Scientific Interest east of Fulbourn, Cambridgeshire. It is privately owned and managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire.
Waresley and Gransden Woods is a 50-hectare (120-acre) nature reserve between Waresley and Great Gransden in Cambridgeshire, England. It is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. The site is a 54.2-hectare (134-acre) biological Site of Special Scientific Interest called Waresley Wood, with slightly different boundaries.
Hardwick Wood is a 15.5-hectare (38-acre) biological Site of Special Scientific Interest southwest of Hardwick in Cambridgeshire. It is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire.
Hales and Shadwell Woods is a 15.4-hectare (38-acre) biological Site of Special Scientific Interest north-east of Saffron Walden in Essex. Shadwell Wood has an area of 7.1 hectares and it is managed by the Essex Wildlife Trust. Hales Wood is a National Nature Reserve, and it is listed in the Nature Conservation Review.
Balsham Wood is a 35 hectare biological Site of Special Scientific Interest south of Balsham in Cambridgeshire.
Madingley Wood is a 15.4-hectare (38-acre) biological Site of Special Scientific Interest near Madingley, on the western outskirts of Cambridge.
Brackland Rough is a 10.7-hectare (26-acre) biological Site of Special Scientific Interest in Fordham in Cambridgeshire. It is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire as Fordham Woods.
Eversden and Wimpole Woods is a 67.1-hectare (166-acre) biological Site of Special Scientific Interest between Kingston and Orwell in Cambridgeshire. The site has been designated a Special Area of Conservation for its barbastelle bats.
Hildersham Wood is a 7.7-hectare (19-acre) biological Site of Special Scientific Interest south of Hildersham in Cambridgeshire.
Kingston Wood and Outliers is a 47.4-hectare (117-acre) biological Site of Special Scientific Interest south-west of Kingston in Cambridgeshire. The site comprises Kingston Wood itself, Pincote Wood, Hawk's Wood and Lady Pastures Spinney.
Langley Wood is a 31.6-hectare (78-acre) biological Site of Special Scientific Interest in Cambridgeshire, but lying between Saffron Walden in Essex and Haverhill in Suffolk.
Out and Plunder Woods is a 38.6-hectare (95-acre) biological Site of Special Scientific Interest between Great Bradley and Burrough Green in Cambridgeshire.
Aldwincle Marsh is a 2-hectare (4.9-acre) biological Site of Special Scientific Interest north of Thrapston in Northamptonshire.
Bawdsey Cliff is a 17.4-hectare (43-acre) geological Site of Special Scientific Interest north-east of Felixstowe in Suffolk. It is a Geological Conservation Review site, and is in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
Lakenheath Poor's Fen is a 5.2-hectare biological Site of Special Scientific Interest west of Lakenheath in Suffolk.
Trundley and Wadgell's Wood, Great Thurlow is a 79.4-hectare (196-acre) biological Site of Special Scientific Interest east of Great Thurlow in Suffolk.
Gawdyhall Big Wood, Harleston is a 29.8-hectare (74-acre) biological Site of Special Scientific Interest north of Harleston in Norfolk.
