Enterprise Bancorp (EBTC) 8-K Entry into a Material Definitive Agreement

Exhibit 10.43

Enterprise Bancorp

Executive Officer Supplemental Bonus Table

Fiscal  year 2006

	Bonus %		Bonus %		Bonus %		Bonus %		Bonus %		Bonus %		Bonus %		Bonus %		Bonus %		Bonus %		Bonus %
	of salary,		of salary,		of salary,		of salary,		of salary,		of salary,		of salary,		of salary,		of salary,		of salary,		of salary,
	NI Growth		NI Growth		NI Growth		NI Growth		NI Growth		NI Growth		NI Growth		NI Growth		NI Growth		NI Growth		NI Growth
Net Income growth*	10.000%		11.000%		12.000%		13.000%		14.000%		15.000%		16.000%		17.000%		18.000%		19.000%		20.000%
Name
George L. Duncan	10.000	%	18.000	%	26.000	%	35.000	%	40.000	%	50.000	%	55.000	%	60.000	%	65.000	%	70.000	%	75.000	%
Richard W. Main	10.000	%	18.000	%	26.000	%	35.000	%	40.000	%	50.000	%	55.000	%	60.000	%	65.000	%	70.000	%	75.000	%
Jack P Clancy	10.000	%	18.000	%	26.000	%	35.000	%	40.000	%	50.000	%	55.000	%	60.000	%	65.000	%	70.000	%	75.000	%
James A. Marcotte	5.714	%	10.286	%	14.857	%	20.000	%	22.857	%	28.571	%	31.429	%	34.286	%	37.143	%	40.000	%	42.857	%
Robert R. Gilman	5.714	%	10.286	%	14.857	%	20.000	%	22.857	%	28.571	%	31.429	%	34.286	%	37.143	%	40.000	%	42.857	%
Stephen J. Irish	5.714	%	10.286	%	14.857	%	20.000	%	22.857	%	28.571	%	31.429	%	34.286	%	37.143	%	40.000	%	42.857	%

%’s in table represent  bonus to be paid as a % of base salary.

*  Net income growth % is the % increase in Net Income as compared to the prior Fiscal Year.