Top 125 Public Companies | Rank | Company | Revenue | Employees | Industry | | 1 | Federal National Mortgage Association | 52,901,000 | 4,699 | Financial services | | 2 | Federal Home Loan Mortgage Corp. | 38,353,000 | 4,100 | Financial services | | 3 | Lockheed Martin Corp. | 26,578,000 | 125,000 | Aerospace/defense | | 4 | General Dynamics Corp. | 13,829,000 | 53,900 | Aerospace/defense | | 5 | Capital One Financial Corp. | 9,647,602 | 18,100 | Financial services | | 6 | Nextel Communications Inc. | 8,721,000 | 15,000 | Telecommunications | | 7 | AES Corp. | 8,632,000 | 36,000 | Energy | | 8 | Marriott International Inc. | 8,441,000 | 143,625 | Hospitality/travel | | 9 | US Airways Group Inc. | 6,977,000 | 29,647 | Transportation | | 10 | Gannett Co. Inc. | 6,422,249 | 51,000 | Media | | 11 | Danaher Corp. | 4,577,232 | 29,000 | Manufacturing | | 12 | Pepco Holdings Inc. | 4,324,500 | 5,623 | Energy | | 13 | Host Marriott Corp. | 3,680,000 | 197 | Hospitality/travel | | 14 | Coventry Health Care Inc. | 3,576,905 | 3,964 | Health care | | 15 | Lafarge North America Inc. | 3,251,600 | 15,500 | Manufacturing | | 16 | SLM Corp. | 3,232,415 | 6,798 | Financial services | | 17 | NVR Inc. | 3,136,274 | 3,596 | Real estate | | 18 | The Washington Post Co. | 2,584,203 | 11,600 | Media | | 19 | BearingPoint Inc. | 2,367,627 | 16,689 | Information Technology | | 20 | Mid Atlantic Medical Services Inc. | 2,328,029 | 3,315 | Health care | | 21 | W.R. Grace & Co. | 1,840,400 | 6,400 | Manufacturing | | 22 | Harman International Industries Inc. | 1,826,188 | 10,389 | Manufacturing | | 23 | Magellan Health Services Inc. | 1,753,058 | 5,800 | Health care | | 24 | United Defense Industries Inc. | 1,725,346 | 7,200 | Aerospace/defense | | 25 | WGL Holdings Inc. | 1,584,802 | 2,205 | Energy | | 26 | USEC Inc. | 1,426,200 | 2,913 | Energy | | 27 | XO Communications Inc. | 1,259,853 | 4,900 | Telecommunications | | 28 | Acterna Corp. | 1,132,661 | 4,100 | Telecommunications | | 29 | Rouse Co. | 1,104,734 | 3,453 | Real estate | | 30 | Primus Telecommunications Group Inc. | 1,024,056 | 2,181 | Telecommunications | | 31 | American Management Systems Inc. | 986,695 | 6,300 | Information Technology | | 32 | MeriStar Hospitality Corp. | 983,453 | 30 | Hospitality/travel | | 33 | GTSI Inc. | 934,730 | 693 | Government services | | 34 | MedImmune Inc. | 847,739 | 1,505 | Biotechnology | | 35 | Veridian Corp. | 834,077 | 7,380 | Aerospace/defense | | 36 | Anteon International Corp. | 825,826 | 5,799 | Aerospace/defense | | 37 | NII Holdings Inc. | 780,373 | 3,525 | Telecommunications | | 38 | Atlantic Coast Airlines Holdings Inc. | 760,524 | 5,099 | Transportation | | 39 | Watson Wyatt & Co. Holdings | 710,480 | 4,250 | Consulting/professional services | | 40 | CACI International Inc | 681,942 | 6,004 | Aerospace/defense | | 41 | Avalonbay Communities Inc. | 638,966 | 1,775 | Real estate | | 42 | Fairchild Corp. | 624,093 | 4,600 | Manufacturing | | 43 | Interstate Hotels & Resorts Inc. | 601,170 | 32,384 | Hospitality/travel | | 44 | Orbital Sciences Corp. | 551,642 | 2,000 | Aerospace/defense | | 45 | CarrAmerica Realty Corp. | 527,729 | 875 | Real estate | | 46 | Hanger Orthopedic Group Inc. | 525,534 | 3,084 | Health care | | 47 | Maximus Inc. | 518,698 | 5,188 | Government services | | 48 | Sunrise Assisted Living Inc. | 505,912 | 15,000 | Health care | | 49 | ManTech International Corp. | 500,219 | 4,436 | Aerospace/defense | | 50 | Friedman, Billings, Ramsey Group Inc. | 425,000 | 481 | Financial services | | 51 | Metrocall Holdings Inc. | 406,272 | 1,945 | Telecommunications | | 52 | Micros Systems Inc. | 367,163 | 2,507 | Information Technology | | 53 | Choice Hotels International Inc. | 365,562 | 1,600 | Hospitality/travel | | 54 | SRA International Inc. | 361,197 | 2,480 | Aerospace/defense | | 55 | Ciena Corp. | 361,155 | 2,118 | Telecommunications | | 56 | Radio One Inc. | 335,752 | 1,725 | Media | | 57 | Rowe Cos. | 334,610 | 2,978 | Manufacturing | | 58 | Federal Realty Investment Trust | 318,834 | 500 | Real estate | | 59 | Talk America Holdings Inc. | 317,507 | 992 | Telecommunications | | 60 | Allied Capital Corp. | 309,928 | 105 | Financial services | | 61 | Duratek Inc. | 291,536 | 1,280 | Other | | 62 | Manugistics Group Inc. | 272,386 | 1,133 | Information Technology | | 63 | HealthExtras Inc. | 248,408 | 105 | Health Care | | 64 | Savvis Communications Corp. | 236,004 | 825 | Telecommunications | | 65 | FTI Consulting Inc. | 224,113 | 769 | Consulting/professional services | | 66 | Mills Corp. | 221,041 | 1,400 | Real Estate | | 67 | EPlus Inc. | 204,985 | 559 | Information Technology | | 68 | WebMethods Inc. | 198,401 | 850 | Information Technology | | 69 | Federal Agricultural Mortgage Corp. | 190,649 | 33 | Financial services | | 70 | Digex Inc. | 187,960 | 785 | Information Technology | | 71 | PEC Solutions Inc. | 182,185 | 1,170 | Government services | | 72 | LaSalle Hotel Properties | 178,243 | 22 | Hospitality/travel | | 73 | Trex Co. Inc. | 167,079 | 449 | Manufacturing | | 74 | OAO Technology Solutions Inc. | 167,056 | 2,492 | Information Technology | | 75 | AT&T Latin America Corp. | 165,593 | 985 | Telecommunications | | 76 | Corporate Executive Board Co. | 162,357 | 997 | Consulting/professional services | | 77 | CompuDyne Corp. | 155,556 | 923 | Other | | 78 | Washington Real Estate Investment Trust | 153,609 | 286 | Real estate | | 79 | SI International Inc. | 149,351 | 1,240 | Aerospace/defense | | 80 | Corporate Office Properties Trust | 147,995 | 171 | Real Estate | | 81 | MicroStrategy Inc. | 147,827 | 809 | Information Technology | | 82 | American Capital Strategies Ltd. | 147,022 | 108 | Financial services | | 83 | Capital Automotive REIT | 142,435 | 24 | Real estate | | 84 | Criimi Mae Inc. | 138,092 | 107 | Real estate | | 85 | VSE Corp. | 134,379 | 450 | Government services | | 86 | The Allied Defense Group Inc. | 130,866 | 579 | Aerospace/defense | | 87 | Celera Genomics Corp. | 120,886 | 546 | Biotechnology | | 88 | RWD Technologies Inc. | 117,485 | 823 | Information Technology | | 89 | Strayer Education Inc. | 116,710 | 1,269 | Other | | 90 | Advisory Board Co. | 95,331 | 495 | Consulting/professional services | | 91 | Saul Centers Inc. | 93,963 | 50 | Real estate | | 92 | TeleCommunication Systems Inc. | 92,045 | 480 | Telecommunications | | 93 | Group 1 Software Inc. | 89,428 | 457 | Information Technology | | 94 | BioReliance Corp. | 82,446 | 650 | Biotechnology | | 95 | CoStar Group Inc. | 79,363 | 848 | Information Technology | | 96 | MCG Capital Corp. | 76,933 | 56 | Financial services | | 97 | Vastera Inc. | 76,378 | 580 | Consulting/professional services | | 98 | Chindex International Inc. | 70,617 | 619 | Health Care | | 99 | Versar Inc. | 67,988 | 352 | Other | | 100 | LCC International Inc. | 67,069 | 550 | Telecommunications | | 101 | Humphrey Hospitality Trust Inc. | 65,694 | 10 | Hospitality/travel | | 102 | Visual Networks Inc. | 61,461 | 158 | Telecommunications | | 103 | Bresler & Reiner Inc. | 59,383 | 90 | Real estate | | 104 | Analex Corp. | 59,300 | 550 | Biotechnology | | 105 | Williams Industries Inc. | 56,504 | 417 | Real estate | | 106 | Gene Logic Inc. | 54,848 | 264 | Biotechnology | | 107 | Sherwood Brands Inc. | 52,782 | 318 | Manufacturing | | 108 | Cogent Communications Group Inc. | 51,913 | 204 | Telecommunications | | 109 | Integral Systems Inc. | 50,923 | 358 | Aerospace/defense | | 110 | Halifax Corp. | 49,399 | 324 | Information Technology | | 111 | Digene Corp. | 48,848 | 275 | Biotechnology | | 112 | Martek Biosciences Corp. | 46,055 | 198 | Biotechnology | | 113 | Opnet Technologies Inc. | 44,756 | 268 | Telecommunications | | 114 | GSE Systems Inc. | 43,116 | 241 | Information Technology | | 115 | NCRIC Group Inc. | 42,695 | 104 | Financial Services | | 116 | Igen International Inc. | 42,047 | 370 | Biotechnology | | 117 | American Community Properties Trust | 39,268 | 254 | Real Estate | | 118 | On-Site Sourcing Inc. | 37,077 | 712 | Consulting/professional services | | 119 | Online Resources Corp. | 32,354 | 320 | Information Technology | | 120 | Sensytech Inc. | 32,290 | 201 | Aerospace/defense | | 121 | United Therapeutics Corp. | 30,120 | 150 | Biotechnology | | 122 | Bowl America Inc. | 29,810 | 700 | Hospitality/travel | | 123 | SteelCloud Inc. | 29,157 | 83 | Information Technology | | 124 | Convera Corp. | 23,614 | 240 | Information Technology | | 125 | InteliData Technologies Corp. | 21,495 | 89 | Information Technology | |