Holding(s) in Company

Zen Research PLC
18 January 2002

18 January 2002

Letter to:     Company Announcements Office

ZEN RESEARCH PLC HOLDING IN COMPANY

Ord 0.05p shares

Zen Research plc was notified on 17 January 2002 that JP Morgan Securities
Limited, on behalf of JP Morgan Chase & Co and its subsidiaries, as at 17
January 2002, under part V1 of the Companies Act 1985 had a notifiable
interest of 13.62% in the issued share capital of Zen Research plc as detailed
below.

Company Name
Shares                                               Total               No. of
                                                  interest
CHASE FLEMINGS ASSET (UK) MANAGEMENT LTD

(DISCRETIONARY INVESTMENT MANAGER)
Registered Holder:
CHASE NOMINEES LIMITED                                                  705,096
Detil Euro Digital Fund                                               1,349,503
JPMF Balanced Fund                                                      249,940
JPMF Premier Equity Income Fund                                         976,363
JPMF UK Dynamic Fund                                                  3,292,148
JPMF UK Smaller Companies                            3.14%            5,683,761
JPMFF Europe Technology Fund A/c 798                 3.03%            5,480,468
The Fleming Smaller Companies Investment                              3,276,981
Trust plc
                                                           --------------------
                                                                     21,013,981

FLEMING PRIVATE WEALTH MANGEMENT LIMITED
(DISCRETIONARY INVESTMENT MANGAGER)

Registered Holder:
RBSTB NOMINEES LIMITED                                                  157,563

FLEMING UNIT TRUST MANAGEMENT LIMITED
(LIFE INSURANCE & PENSIONS)
Registered Holder:
JPMF Institutional UK Smaller Companies Fund                          3,426,520
                                                                  -------------
TOTAL INTEREST                                                       24,598,064



Zen Research PLC

Mark Way

Investor Relations

[phone]