| #1 | Rockwell Collins, INC. UEI J4Q3HP6NHK47 | 9,599 | $10B |
| #2 | Data Link Solutions LLC UEI PPVTFMDK1NN5 | 724 | $3.3B |
| #3 | American Ordnance LLC UEI QHL5DNL1NUK3 | 725 | $2.7B |
| #4 | Pmx Industries, INC. UEI L331KLRZBPY4 | 164 | $1.5B |
| #5 | Rockwell Collins Simulation & Training Solutions LLC UEI V1GUE46V5MS5 | 66 | $966M |
| #6 | Iowa State University Of Science And Technology UEI DQDBM7FGJPC5 | 297 | $767M |
| #7 | Bae Systems Information And Electronic Systems Integration INC. UEI XQK3GTZJ6464 | 102 | $759M |
| #8 | Mission Systems Davenport INC. UEI F14JJL7BTEQ6 | 3,411 | $486M |
| #9 | The University Of Iowa UEI Z1H9VJS8NG16 | 805 | $356M |
| #10 | Regency Consulting INC UEI SC8LMLWA6H51 | 1,578 | $348M |
| #11 | The Cbe Group, INC. UEI CTYHQ6M5VHL1 | 17 | $333M |
| #12 | Stanley Consultants, INC. UEI K9NLKXNE7J56 | 239 | $261M |
| #13 | Dubuque Barge And Fleeting Service CO UEI L9NNGHXPV7N6 | 100 | $255M |
| #14 | Allsteel LLC UEI HYBHM8PBY8U7 | 1,571 | $232M |
| #15 | Covenant Construction Services LLC UEI P3CTJ2KMB3J8 | 51 | $191M |
| #16 | Collins Engine Nozzles, INC UEI TNGTBC4HJUM5 | 1,087 | $166M |
| #17 | Ncs Pearson INC UEI JMZQKMTD33N1 | 29 | $147M |
| #18 | Western Contracting Corp UEI YQ4BGKT7LZV5 | 35 | $141M |
| #19 | Intertrade Limited UEI GY4DM3WE2JS8 | 438 | $137M |
| #20 | Telligen, INC UEI W9H9TLXLZCL7 | 37 | $134M |
| #21 | Diversified Management Solutions, INC. UEI F59SMR86J7R8 | 11 | $109M |
| #22 | Carver Pump Company UEI W547TUQXJ8Y4 | 772 | $106M |
| #23 | Heartland Goodwill Enterprises UEI JBB5Q6BD46T1 | 138 | $91M |
| #24 | Fleetside Ford, LLC. UEI JFD6LMKAKYN3 | 807 | $88M |
| #25 | Loffredo Gardens, INC UEI YYFZRJQ225B3 | 104,882 | $87M |
| #26 | General Constructors INC. Of The Quad Cities UEI C9JGVNMG4ND3 | 10 | $72M |
| #27 | Ryan & Associates, INC. UEI KR8ENDJU7EW7 | 14 | $68M |
| #28 | Hendrickson Transportation LLC UEI JQ4LBVBNZK93 | 9 | $66M |
| #29 | Shekar Engineering, P.L.C UEI LZL3J61WVEY5 | 199 | $64M |
| #30 | Bioprotection Systems Corporation UEI M1KKDAY5YUU9 | 6 | $52M |
| #31 | Wendler, INC. UEI UKJDFB78JBL4 | 3 | $50M |
| #32 | Rdzm, LLC UEI JT6RE782ZYK3 | 1 | $43M |
| #33 | Lifeskills Connection INC UEI J1RFH74RBFL9 | 4 | $43M |
| #34 | Iowa Healthcare Collaborative UEI DQRFTEX8S364 | 5 | $43M |
| #35 | Aerial Services, INC. UEI LFP5JJC7UWY3 | 40 | $42M |
| #36 | Air Control, INC. UEI FLWDJQUDCH54 | 138 | $42M |
| #37 | Career Management Associates Of Iowa, LLC UEI S7MMPLQMYNL9 | 128 | $39M |
| #38 | Collins-russell 8(a), LLC. UEI LMJHRKZV2X43 | 10 | $38M |
| #39 | Care Initiatives UEI ZQLRV8ERQFJ6 | 214 | $38M |
| #40 | Dean Snyder Construction CO. UEI P6L3G53M1TU9 | 1 | $33M |
| #41 | Prime Physicians PLLC UEI ZCC3WRWMYVN4 | 94 | $31M |
| #42 | Millennium Health & Fitness, INC. UEI L52JKQYM8QA8 | 30 | $31M |
| #43 | Hon Company LLC, The UEI ZZBCMKZXP713 | 1,100 | $29M |
| #44 | Charles F. Day & Associates, LLC UEI DA92GBMH4C95 | 13 | $28M |
| #45 | Stanley-wsp Joint Venture UEI MH7TX79CVRP6 | 37 | $27M |
| #46 | Crystal Group, INC UEI V73QNVKJWAJ9 | 172 | $27M |
| #47 | Fidelis-bbd, LLC UEI KFCLR3W2BJP1 | 4 | $22M |
| #48 | Cerebral Group, LLC UEI KNWJA7HGJPZ6 | 112 | $22M |
| #49 | Awg Services, L.L.C. UEI W4WCUB21EFY1 | 25 | $22M |
| #50 | Chenhall Sedona Services Joint Venture, LLC UEI U1F2YK1WJHQ3 | 39 | $22M |