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- THE RESEARCH LOCKER LIMITEDType: Market research and pollingIncorporated: 8 December 2016
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- DOVETAIL TOGETHER LTDType: PR and communicationsIncorporated: 30 September 2010
- RESEARCHERS AT CROWN LIMITEDType: Market research and pollingIncorporated: 8 February 2000
- HAMLET ADVERTISING LIMITEDType: PR and communicationsIncorporated: 28 September 1987