<PAGE>
EXHIBIT 21
LIST OF SUBSIDIARIES
<PAGE>
EXHIBIT 21
LIST OF SUBSIDIARIES
<TABLE>
<CAPTION>
NAME COUNTRY OF INCORPORATION PERCENTAGE INTEREST/
/RESIDENCE VOTING POWER
---------------------------------- ---------------------------
<S> <C> <C>
Pearson Inc............................. United States 100
Pearson AG ............................. Switzerland 100
Whitehall Electric Investments
Limited .............................. England and Wales 100
Whitehall Trust ........................ England and Wales 100
Rycade Capital Corporation Inc.......... United States 100
Financial Times Limited................. England and Wales 100
FT Group Limited........................ England and Wales 100
Prentice Hall Inc....................... United States 100
Pearson Business Services Inc........... United States 100
Data Broadcasting Corporation........... United States 60
</TABLE>