Overview / Concentration

How concentrated is federal contract money?

Agency concentration across the archive: 4003.6 out of 10,000.

HHI is the sum of squared shares multiplied by 10,000. We use absolute net obligations so negative adjustments do not produce negative weights. It measures this archived distribution, not competition, wrongdoing or supplier quality.

Recipient concentration within each agency

Each agency’s HHI uses every recipient identity, including those below the published list threshold. Small agencies and adjustment-heavy records need particular care when comparing.

Agency	Recipient HHI	Recipient identities	Net obligations
Federal Labor Relations Authority	3660.8	27	$1,616,656
National Endowment for the Arts	3212.4	55	$3,864,614
Federal Mine Safety and Health Review Commission	3002.8	22	−$461,437
Committee for Purchase from People Who Are Blind or Severely Disabled	2919.6	12	$2,064,250
National Transportation Safety Board	2724.6	110	$29,684,092
Department of Housing and Urban Development	2544.1	442	−$1,330,204,749
Morris K. Udall and Stewart L. Udall Foundation	2509.1	22	$311,297
Defense Nuclear Facilities Safety Board	2218.8	32	$5,948,705
Institute of Museum and Library Services	2140.6	31	$11,866,491
National Science Foundation	2085.1	275	$711,037,985
National Labor Relations Board	1864.9	81	$26,050,292
Railroad Retirement Board	1791.3	109	$42,984,848
Selective Service System	1573.8	29	$7,423,930
Small Business Administration	1514.3	327	$110,860,869
Peace Corps	1476.2	161	$68,629,163
Federal Maritime Commission	1467	43	$5,141,006
Corporation for National and Community Service	1424.2	92	$30,266,552
International Trade Commission	1379.6	101	$17,797,015
National Endowment for the Humanities	1296.9	30	$1,948,160
Department of Veterans Affairs	1219.2	13,049	$78,325,558,111
Federal Trade Commission	1185.8	334	$93,093,006
Federal Communications Commission	1177.2	324	$63,059,322
Agency for International Development	1151.1	991	$4,163,505,455
Council of the Inspectors General on Integrity and Efficiency	1130.2	33	$4,609,437
United States Chemical Safety Board	1000.3	26	$1,648,618
Federal Mediation and Conciliation Service	994.5	58	$1,527,485
Merit Systems Protection Board	867.2	70	$3,201,753
District of Columbia Courts	859.4	230	$62,555,897
Federal Election Commission	836.9	69	$13,729,726
United States Trade and Development Agency	817.1	74	$14,868,872
Department of Education	785.1	523	$2,502,613,339
Occupational Safety and Health Review Commission	697.3	24	$1,556,962
Commodity Futures Trading Commission	658.9	180	$67,873,877
Government Accountability Office	652.2	163	$117,385,587
U.S. Agency for Global Media	591.6	267	$72,060,330
Library of Congress	571.4	66	$10,000
Office of Personnel Management	530.7	179	$198,250,775
Export-Import Bank of the United States	479.9	252	$52,157,350
National Gallery of Art	476.6	297	$54,564,210
Pension Benefit Guaranty Corporation	465	173	$291,626,660
Nuclear Regulatory Commission	458.7	353	$183,407,577
Department of Energy	450.4	1,813	$50,261,969,681
Millennium Challenge Corporation	396.7	209	$40,397,429
Social Security Administration	396.1	1,558	$1,813,076,501
Executive Office of the President	388.7	181	$64,096,198
National Aeronautics and Space Administration	376.4	3,211	$21,333,082,153
Securities and Exchange Commission	370.1	418	$498,159,347
Court Services and Offender Supervision Agency	368	172	$36,968,225
Department of the Treasury	357.9	3,094	$8,546,374,148
Consumer Financial Protection Bureau	328.1	221	$116,253,350
Department of Labor	318.8	728	$1,754,260,959
U.S. International Development Finance Corporation	317.5	185	$87,384,127
Equal Employment Opportunity Commission	311.5	308	$48,610,301
National Archives and Records Administration	295	306	$207,686,582
Consumer Product Safety Commission	279.9	289	$32,912,664
Environmental Protection Agency	271.4	1,220	$1,713,612,070
General Services Administration	208.2	18,432	$24,309,948,876
Smithsonian Institution	188.4	1,149	$430,889,297
Department of Homeland Security	167.1	9,004	$28,402,896,531
Department of Transportation	159.7	3,806	$9,889,707,241
Department of Health and Human Services	156.5	7,870	$26,765,222,991
Department of State	124.2	6,779	$9,894,413,413
Department of Commerce	101	3,627	$4,160,699,942
Department of Defense	99.6	47,510	$491,653,488,853
Department of Justice	96.3	7,377	$8,763,921,577
Department of the Interior	70.7	10,250	$6,545,972,428
Department of Agriculture	40.3	10,322	$9,636,256,271