However a spokesperson for Invest Northern Ireland has rejected the claims.
In his statement Councillor Butcher said: "The statistics reveal that in the last ten years (1998-2007) 1 in 4 (23.3 per cent) of all new jobs promoted by Invest NI inward investment projects was in South Belfast. 1 in 3 (32.3 per cent) of all first-time inward investment projects promoted by Invest NI was in South Belfast. 1 in 2 (47.2 per cent) of all new jobs promoted by Invest NI was in the three north eastern constituencies – South Belfast, East Belfast and East Antrim
South Belfast (7,454) had twice as many new jobs promoted by Invest NI inward investment projects as Foyle (3,729). South Belfast (43) had over 3.5 times more first-time inward investment projects promoted by Invest NI than Foyle (12)East Derry and North Antrim had no new first-time Invest NI inward investment projects promoted. South Belfast routinely had more Invest NI jobs and projects promoted on a range of indicators than the combined total for the entire border corridor of Foyle, West Tyrone, Fermanagh and South Tyrone, and Newry and Armagh.
"Ten years ago the Good Friday Agreement imposed a statutory duty on all public authorities to promote the need for equality of opportunity. The current Executive's agreed Programme for Government has also endorsed the need for 'new and innovative measures that will address the existing patterns of socio-economic disadvantage and target resources and efforts towards those in greatest objective need'.
"It is important to note that the constituencies which have suffered most from investment inequalities include both some DUP heartlands and virtually all Sinn Féin constituencies – from North and West Belfast to East Derry.
"These figures prove that the most deprived working-class areas of the Six Counties have been systematically excluded and ignored by Invest NI and the Senior Civil Service in favour of repeatedly promoting the existing investment patterns in relatively affluent constituencies particularly South Belfast.