Holding(s) in Company

RNS Number:7762P
Dimension Data Holdings PLC
15 September 2003



                  Dimension Data Holdings Plc ("the Company")

                    Disclosure of Interest in Share Capital


The Company has received notification, pursuant to section 198 of the Companies
Act 1985, that as at 4 September 2003, Old Mutual Plc and its direct and
indirect subsidiaries had an interest in 130,352,596 ordinary shares of the
Company representing 9.71 per cent. of the issued share capital. The shares are
registered as follows:


Holder                                                          Number of shares

Old Mutual Asset Managers (South Africa) (Pty) Ltd                     8,469,922
PeregrineQuant (Pty) Ltd (Not an Old Mutual Company)                     246,458
Coronation Fund Managers Ltd (Not an Old Mutual Company)                 610,088
Old Mutual Asset Managers (South Africa) (Pty) Ltd                     2,497,729
Old Mutual Asset Managers (South Africa) (Pty) Ltd                        55,000
Old Mutual Asset Managers (South Africa) (Pty) Ltd                    21,778,419
Old Mutual Asset Managers (Namibia) (Pty) Ltd                            178,221
Old Mutual Asset Managers (Namibia) (Pty) Ltd                             58,996
Old Mutual Asset Managers (Bermuda) Ltd                                1,421,696
Old Mutual Asset Managers (Bermuda) Ltd                                3,784,407
Quantitive Asset Management                                            2,919,402
Quantitive Asset Management                                              211,739
Franklin Templeton/NIB Investments                                       721,640
BOE Private Clients (ntrac)                                            1,207,908
Old Mutual                                                                   715
BOE Fiduciary                                                             72,839
Syfrets Securities Nominee Company                                           438
BOE Private Clients                                                    4,003,117
BOE Private Clients                                                       72,913
Nedcor Investment Bank Multi Manager                                     275,871
Nedcor Investment Bank Securities                                        102,145
Nedeurope SA                                                          77,175,591
Mutual & Federal Limited                                               1,890,917
Mutual & Federal Namibia Limited                                         126,840
CGU Insurance                                                            370,000
CGU Holdings                                                              11,197
Sentrasure                                                               180,000
Quaystone Ltd                                                          1,885,268
Gerrard Ltd                                                               23,120


                      This information is provided by RNS
            The company news service from the London Stock Exchange
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