Companies
- Lockheed Martin 46
- Norfolk Southern 33
- Freeport-McMoRan 25
- IES 17
- Siemens 14
- The Shaw Group 14
- CSX 13
- Union Pacific 11
- Huntington Ing... 11
- BNSF Railway (... 8
- BAE Systems 8
- L-3 Communications 7
- Chenega Corpor... 6
- R. R. Donnelle... 5
- QinetiQ North ... 5
- URS Corporation 5
- OSRAM SYLVANIA 5
- Comcast 4
- Kraft Foods Inc. 4
- Warren Equipme... 3
- Shaw Industries 3
- Southern Calif... 3
- CH2M HILL 3
- ABM Industries 3
- CN 3
- General Electric 3
- Peabody Energy 3
- Vulcan Materia... 2
- Jacobs 2
- Emory University 2
- Armstrong Worl... 2
- Exterran 2
- Weyerhaeuser 2
- Chugach Alaska... 2
- Shell 1
- Sodexo 1
- CACI International 1
- General Dynamics 1
- Chevron Corpor... 1
- Merck 1
- Time Warner Inc 1
- Cooper Industr... 1
- Memorial Sloan... 1
- Kansas City So... 1
- Dow Chemical 1
- Oshkosh Corpor... 1
- Hilton Worldwide 1
- Turner Broadca... 1
- RockTenn 1
- LP Building Pr... 1
- Honeywell 1
- Olin Chlor Alk... 1
- Westinghouse E... 1
- Catholic Healt... 1
- Eaton Corporation 1
- Mayo Clinic 1
- AECOM 1
- International ... 1
- CDM 1
- SRA International 1
- Time Warner Cable 1
- Cleveland Clinic 1
- Abbott 1
- CVS Caremark 1
- Northrop Grumman 1
- Volt Informati... 1
- Ball Aerospace 1
States
- texas 153
- california 100
- pennsylvania 83
- virginia 75
- new york 67
- iowa 52
- maryland 50
- minnesota 49
- tennessee 45
- north dakota 41
- georgia 39
- colorado 36
- west virginia 35
- florida 34
- missouri 31
- south dakota 31
- arizona 30
- wisconsin 29
- washington 28
- oregon 26
- illinois 23
- oklahoma 23
- new jersey 21
- montana 20
- indiana 19
- ohio 19
- mississippi 18
- connecticut 16
- north carolina 16
- nevada 15
- louisiana 14
- arkansas 13
- alaska 11
- new mexico 11
- kansas 10
- massachusetts 10
- alabama 9
- idaho 9
- michigan 9
- kentucky 8
- south carolina 7
- wyoming 7
- maine 6
- utah 6
- district of co... 4
- hawaii 4
- nebraska 4
- rhode island 3
- delaware 2
- vermont 1
