Top 20 company profilesStay Connected By June 1, 2010 MktIntell No. 1: Lockheed Martin Corp. More 2010 Top 100 Federal Prime Contractors 2010 Top 100 rankings Top 100 companies face an ever-changing market Ethics rules expected to spur acquisitions Stand up and embrace a changing market Contractors find fertile fields abroad Top 100 methodologyNo. 2: Northrop Grumman Corp.No. 3: Boeing Co.No. 4: Raytheon Co.No. 5: Science Applications International Corp.No. 6: General Dynamics Corp.No. 7: KBR Inc.No. 8: L-3 Communications Inc.No. 9: Booz Allen HamiltonNo 10: Computer Sciences Corp.No. 11: Dell Inc.No. 12: Hewlett-Packard Co.No. 13: Harris Corp.No. 14: ITT Corp.No. 15: BAE Systems Inc.No. 16: CACI InternationalNo. 17: IBM Corp.No. 18: Deloitte LLPNo. 19: Verizon Communications Inc. No. 20: Jacobs Engineering Share This: NEXT STORY: Health care major focus for Dell exec