Social Security is required by law to publish an annual list of its largest contractors. Here's the top twenty-five from the list for 2015, although the list may be somewhat misleading since some contractors are listed more than once:
Vendor Name | Amount |
LOCKHEED MARTIN CORPORATION | $99,367,423.18 |
NORTHROP GRUMMAN SYSTEMS CORPORATION | $94,089,718.92 |
COMPUTER SCIENCES CORPORATION | $48,663,052.74 |
INTERNATIONAL BUSINESS MACHINE | $40,155,560.67 |
ACCENTURE NATIONAL SECURITY SERVICES, LLC | $28,811,804.81 |
M V M, INC. | $23,115,406.92 |
KONIAG TECHNOLOGY SOLUTIONS, INC | $17,787,707.12 |
MAXIMUS FEDERAL SERVICES, INC. | $16,385,736.00 |
AVAYA FEDERAL SOLUTIONS, INC. | $16,149,021.77 |
OBXTEK INC. | $12,634,046.00 |
ABT ASSOCIATES INC | $11,667,000.00 |
INTEGRYS ENERGY SERVICES, INC. | $11,300,000.00 |
AHTNA ENGINEERING SERVICES | $10,769,172.00 |
LOCKHEED MARTIN CORPORATION | $10,100,531.54 |
ACS FEDERAL SOLUTIONS LLC | $9,823,987.24 |
INTERNATIONAL BUSINESS MACHINE | $7,500,000.00 |
EPS CORPORATION | $7,269,839.67 |
OBXTEK INC. | $7,077,128.00 |
NORTHROP GRUMMAN INFORMATION TECHNOLOGY GLOBAL CORPORATION | $6,904,176.80 |
NATIONAL CAPITOL CONTRACTING, LLC | $6,840,000.00 |
NORTHROP GRUMMAN SYSTEMS CORPORATION | $6,549,313.86 |
HENSEL PHELPS SERVICES LLC | $6,360,948.96 |
BROOKS RANGE CONTRACT SERVICES, INC. | $6,358,150.68 |
NORTHROP GRUMMAN SYSTEMS CORPORATION | $6,153,296.70 |