Total Purchases: $22,260,078,070

RankParent company AmountMarket share
1University of California System$4,002,659,81317.98%
2Bechtel Group Inc.2,465,493,45211.07
3Lockheed Martin Corp. 2,406,169,94810.80
4Battelle Memorial Institute1,891,823,8358.49
5BNFL Inc.1,428,918,5036.41
6McDermott Inc.1,236,602,8545.55
7CH2M Hill Companies Ltd.1,032,943,7784.64
8Fluor Corp.1,004,518,7564.51
9Washington Group International530,599,2682.38
10University of Tennessee System527,351,2112.36
11Honeywell Inc.464,760,1472.08
12Brookhaven Science Assoc.395,533,7401.77
13National Security Technologies LLC355,972,6851.59
14Universities Research Association Inc.330,980,8721.48
15Stanford University329,693,0421.48
16Kaiser Group Holdings Inc.234,040,0301.05
17G4s PLC 226,703,1801.01
18Midwest Research Institute197,842,1460.88
19SAIC172,777,3000.77
20Shaw Group Inc. 163,864,7420.73
21Duke Energy Corp.163,834,7420.73
22Oak Ridge Associated Universities143,528,4060.64
23South Carolina Electric & Gas Co.104,280,6260.46
24Nuclear Fuel Services Inc.91,417,3000.41
25University of Chicago78,727,4880.35

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