
<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5

<S>                             <C>                     <C>
<PERIOD-TYPE>                   9-MOS                   9-MOS
<FISCAL-YEAR-END>                          MAR-31-2001             MAR-31-2000
<PERIOD-START>                             APR-01-2000             APR-01-1999
<PERIOD-END>                               DEC-31-2000             DEC-31-1999
<CASH>                                       7,727,526               4,436,925
<SECURITIES>                                         0                       0
<RECEIVABLES>                               15,853,719              14,466,658
<ALLOWANCES>                                   235,967                 186,043
<INVENTORY>                                          0                       0
<CURRENT-ASSETS>                            24,238,323              20,494,237
<PP&E>                                      12,067,711              10,024,718
<DEPRECIATION>                               6,851,693               4,925,680
<TOTAL-ASSETS>                              55,038,760              48,919,724
<CURRENT-LIABILITIES>                       19,378,860              17,187,384
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                        70,632                  66,846
<OTHER-SE>                                  29,966,479              21,967,971
<TOTAL-LIABILITY-AND-EQUITY>                55,038,760              48,919,724
<SALES>                                              0                       0
<TOTAL-REVENUES>                            63,692,131              51,390,674
<CGS>                                       33,362,688              27,437,355
<TOTAL-COSTS>                               54,800,941              46,907,596
<OTHER-EXPENSES>                               195,500                       0
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                             904,293               1,207,920
<INCOME-PRETAX>                              8,054,724               4,483,078
<INCOME-TAX>                                 3,439,692               1,428,257
<INCOME-CONTINUING>                                  0                       0
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                 4,615,032               1,902,077
<EPS-BASIC>                                        .68                     .29
<EPS-DILUTED>                                      .64                     .28


</TABLE>
