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.
Gamlingay Wood is a 48.4-hectare (120-acre) biological Site of Special Scientific Interest (SSSI) north of Gamlingay in Cambridgeshire. It is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire.
Newbourne Springs is a 15.7-hectare (39-acre) biological Site of Special Scientific Interest in Newbourne in Suffolk. It is owned by Anglian Water and managed by the Suffolk Wildlife Trust.
Groton Wood is a 20.2-hectare (50-acre) biological Site of Special Scientific Interest north-east of Groton in Suffolk. It is owned and managed by the Suffolk Wildlife Trust.
Bradfield Woods is an 81.4-hectare (201-acre) biological Site of Special Scientific Interest between Bury St Edmunds and Stowmarket in Suffolk. The site is in three separate blocks, the adjoining Felsham Hall and Monkspark Woods, and the much smaller separate Hedge Wood and Chensil Grove. Felsham Hall and Monkspark Woods are designated a 63.3 National Nature Reserve, also called Bradfield Woods, and are managed by the Suffolk Wildlife Trust.
Arger Fen is a 49.7-hectare (123-acre) biological Site of Special Scientific Interest (SSSI) south-east of Sudbury in Suffolk, England. The site occupies two separate areas. The 17.6-hectare (43-acre) Arger Fen Local Nature Reserve is part of the larger eastern block, and contains part of the 21-hectare (52-acre) Tiger Hill Local Nature Reserve, along with part of the 110-hectare (270-acre) Arger Fen and Spouse's Vale, a nature reserve managed by the Suffolk Wildlife Trust. The site lies in the Dedham Vale Area of Outstanding Natural Beauty,
Cornard Mere is an 8.5-hectare (21-acre) biological Site of Special Scientific Interest in Little Cornard in Suffolk. It is managed by the Suffolk Wildlife Trust.
Blo' Norton and Thelnetham Fens are a 21.3-hectare (53-acre) biological Site of Special Scientific Interest (SSSI) on the Norfolk/Suffolk border. Blo' Norton Fen is in the parish of Blo' Norton in Norfolk and Thelnetham Fen is in Thelnetham parish in Suffolk. It is a Nature Conservation Review site, Grade 2, and part of the Waveney and Little Ouse Valley Fens Special Area of Conservation, Thelnetham Fen is managed by the Suffolk Wildlife Trust and Blo' Norton Fen by the Little Ouse Headwaters Project (LOHP).
Sutton and Hollesley Heaths is a 483.3-hectare (1,194-acre) biological Site of Special Scientific Interest south-east of Woodbridge in Suffolk. Most of the site is managed by the Suffolk Wildlife Trust as Sutton and Hollesley Commons. It is part of the Sandlings Special Protection Area under the European Union Directive on the Conservation of Wild Birds, and the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
Foxley Wood is a nature reserve in Foxley, Norfolk, England, the largest ancient woodland and coppice in Norfolk. The Norfolk Wildlife Trust, which manages this reserve, bought it in 1998. It is 123 hectares in size. It is a Site of Special Scientific Interest, a Nature Conservation Review site, Grade 2, and a National Nature Reserve.
Stour and Copperas Woods, Ramsey is a 77.1-hectare (191-acre) biological Site of Special Scientific Interest between Wrabness and Ramsey in Essex. It is two separate areas, Stour Wood, which is owned by the Woodland Trust and managed by the Royal Society for the Protection of Birds, and Copperas Wood, which is owned and managed by the Essex Wildlife Trust. It is in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty.
Stoke Wood End Quarter is a 0.7-hectare (1.7-acre) nature reserve west of Corby in Northamptonshire. It is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire, and is part of the Stoke and Bowd Lane Woods Site of Special Scientific Interest.
Short Wood and Southwick Wood is a 54.7-hectare (135-acre) nature reserve north-west of Oundle in Northamptonshire. It is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. Short Wood is a 25.3-hectare (63-acre) biological Site of Special Scientific Interest.
Sprat's Water and Marshes, Carlton Colville is a 57.1-hectare (141-acre) biological Site of Special Scientific Interest on the western outskirts of Lowestoft in Suffolk, England. It is part of the Broadland Ramsar internationally important wetland site, and Special Protection Area under the European Union Directive on the Conservation of Wild Birds, and part of The Broads Special Area of Conservation. The northern part of the site is Carlton Marshes, which is part of Carlton and Oulton Marshes, a nature reserve managed by the Suffolk Wildlife Trust.
Barking Woods is a 98.7-hectare (244-acre) biological Site of Special Scientific Interest in six separate blocks north-east of Ipswich in Suffolk. Part of it is a 20-hectare (49-acre) nature reserve called Bonny Wood, which is owned and managed by the Suffolk Wildlife Trust.
Burgate Wood is a 29.9-hectare (74-acre) biological Site of Special Scientific Interest in Suffolk. The site includes a medieval ringwork which is a Scheduled Monument.
Freston and Cutler's Woods with Holbrook Park is a 142 hectare biological Site of Special Scientific Interest south of Ipswich in Suffolk. The site is in the Suffolk Coast and Heaths Area of Outstanding Natural Beauty
Thorpe Morieux Woods is a 45.2-hectare (112-acre) biological Site of Special Scientific Interest north of Thorpe Morieux in Suffolk. Part of it is Bull's Wood, a nature reserve managed by the Suffolk Wildlife Trust.
