EXHIBIT 4.13 COMPOSITE AMENDMENT NO. 1 This is COMPOSITE AMENDMENT NO. 1, dated as of April 7, 2004 (this "Amendment"), to the following agreements between Laurus Master Fund, Ltd., a Cayman Islands company (the "Purchaser"), and Digital Fusion, Inc.,...Composite Amendment • April 14th, 2004 • Digital Fusion Inc/Nj/ • Services-computer programming, data processing, etc. • New York
