<ARTICLE>                                            9
<LEGEND>
     This  schedule  contains  summary  financial   information  extracted  from
unaudited financial statements of Enterprise Bancorp, Inc. at and for the period
ended June 30,  1999 and is  qualified  in its  entirety  by  reference  to such
financial statements.
</LEGEND>
<MULTIPLIER>                                   1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                              DEC-31-1999
<PERIOD-START>                                 JAN-01-1999
<PERIOD-END>                                   JUN-30-1999
<CASH>                                         17,258
<INT-BEARING-DEPOSITS>                         0
<FED-FUNDS-SOLD>                               0
<TRADING-ASSETS>                               0
<INVESTMENTS-HELD-FOR-SALE>                    123,037
<INVESTMENTS-CARRYING>                         0
<INVESTMENTS-MARKET>                           0
<LOANS>                                        232,107
<ALLOWANCE>                                    5,586
<TOTAL-ASSETS>                                 379,091
<DEPOSITS>                                     327,680
<SHORT-TERM>                                   22,568
<LIABILITIES-OTHER>                            2,399
<LONG-TERM>                                    0
<PREFERRED-MANDATORY>                          0
<PREFERRED>                                    0
<COMMON>                                       32
<OTHER-SE>                                     26,412
<TOTAL-LIABILITIES-AND-EQUITY>                 379,091
<INTEREST-LOAN>                                9,723
<INTEREST-INVEST>                              3,424
<INTEREST-OTHER>                               64
<INTEREST-TOTAL>                               13,211
<INTEREST-DEPOSIT>                             4,790
<INTEREST-EXPENSE>                             5,116
<INTEREST-INCOME-NET>                          8,095
<LOAN-LOSSES>                                  270
<SECURITIES-GAINS>                             103
<EXPENSE-OTHER>                                6,490
<INCOME-PRETAX>                                2,725
<INCOME-PRE-EXTRAORDINARY>                     2,725
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                                   1,972
<EPS-BASIC>                                  0.62
<EPS-DILUTED>                                  0.59
<YIELD-ACTUAL>                                 4.79
<LOANS-NON>                                    592
<LOANS-PAST>                                   59
<LOANS-TROUBLED>                               502
<LOANS-PROBLEM>                                1,060
<ALLOWANCE-OPEN>                               5,234
<CHARGE-OFFS>                                  20
<RECOVERIES>                                   102
<ALLOWANCE-CLOSE>                              5,586
<ALLOWANCE-DOMESTIC>                           5,586
<ALLOWANCE-FOREIGN>                            0
<ALLOWANCE-UNALLOCATED>                        94