EXHIBIT 11

                    WALSH INTERNATIONAL INC. AND SUBSIDIARIES
                 COMPUTATION OF EARNINGS (LOSS) PER COMMON SHARE

DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS
<TABLE>
<CAPTION>

                                                    THREE MONTHS ENDED          NINE MONTHS ENDED
                                                -------------------------   -------------------------
PRIMARY EARNINGS (LOSS) PER                       MARCH 31,    MARCH 31,      MARCH 31,      MARCH 31,
SHARE                                               1997         1996           1997           1996
                                                -----------   -----------   -----------   -----------
<S>                                            <C>            <C>          <C>            <C>      
Weighted average common shares outstanding       10,502,185     5,811,742    10,498,369     5,809,995

Assumed exercise of certain stock options and
other common stock equivalents (1)                  131,465     1,727,393        97,618     1,759,617
                                                -----------   -----------   -----------   -----------
                                                 10,633,650     7,539,135    10,595,987     7,569,612
                                                ===========   ===========   ===========   ===========

Income from continuing operations               $     1,301   $        89   $     3,226   $     1,060

Loss from discontinued operations, net                   --            --            --        (1,755)
                                                -----------   -----------   -----------   -----------
Net Income (Loss)                               $     1,301   $        89   $     3,226   $      (695)
                                                ===========   ===========   ===========   ===========

Income per share from continuing operations     $      0.12   $      0.01   $      0.30   $      0.14

Loss per share from discontinued operations,
net                                                      --            --            --         (0.23)
                                                -----------   -----------   -----------   -----------
NET EARNINGS (LOSS) PER SHARE                   $      0.12   $      0.01   $      0.30   $     (0.09)
                                                ===========   ===========   ===========   ===========

FULLY DILUTED EARNINGS (LOSS) PER
SHARE

Weighted average common shares outstanding       10,502,185     5,811,742    10,498,369     5,809,995

Assumed exercise of certain stock options and
other common stock equivalents (1)                  131,465     1,727,393        98,083     1,759,617
                                                -----------   -----------   -----------   -----------
                                                 10,633,650     7,539,135    10,596,452     7,569,612
                                                ===========   ===========   ===========   ===========

Income from continuing operations               $     1,301   $        89   $     3,226   $     1,060

Loss from discontinued operations, net                   --            --            --        (1,755)
                                                -----------   -----------   -----------   -----------
NET INCOME (LOSS)                               $     1,301   $        89   $     3,226   $      (695)
                                                ===========   ===========   ===========   ===========
Income per share from continuing operations     $      0.12   $      0.01   $      0.30   $      0.14

Loss per share from discontinued operations,
net                                                      --            --            --         (0.23)
                                                -----------   -----------   -----------   -----------
NET EARNINGS (LOSS) PER SHARE                   $      0.12   $      0.01   $      0.30   $     (0.09)
                                                ===========   ===========   ===========   ===========
</TABLE>

1)   The Common Stock  equivalents  consist of stock  options,  warrants and the
     Series  A  Convertible  Preferred  Stock.  Common  equivalent  shares  from
     convertible  preferred  stock  (using the if-  converted  method) and stock
     options and warrants  (using the treasury  stock method) have been included
     in the computation when dilutive  (except that,  pursuant to the Securities
     and Exchange  Commission  rules,  the Series A Convertible  Preferred Stock
     which was  converted  into Common Stock in  connection  with the  Company's
     initial public offering is included as if converted at the original date of
     issuance  even  though  inclusion  may be  anti-dilutive).  Pursuant to the
     Securities and Exchange Commission Staff Accounting Bulletin all common and
     common  equivalent  shares issued by the Company at an exercise price below
     the assumed public offering price during the  twelve-month  period prior to
     the  offering  have  been  included  in the  calculation  as if  they  were
     outstanding for the three and nine months ended March 31, 1996,  (using the
     treasury stock method and the initial  public  offering price of $12.00 per
     share).