| DEVIN STETSON TRUCKING LLC | 3991242 | HULL | 1 |
| DEVINE DIRTWORKS LLC | 3611484 | WOODWARD | 1 |
| DEVORE FARMS | 648240 | PRESCOTT | 2 |
| DEVORES TOWING LLC | 4467243 | STOCKTON | 3 |
| DEVRIES & K12 FARMS LLC | 4235721 | CHESTER | 1 |
| DEVRIES FARMS | 3080885 | SHEFFIELD | 3 |
| DEVRIES LIVESTOCK LLC | 1251117 | ALTON | 2 |
| DEWAARD AND SON INC | 1995793 | KANAWHA | 2 |
| DEWAIN WIEBKE | 1107048 | GREENE | 2 |
| DEWAYNE KIRCHNER | 725498 | DONNELLSON | 1 |
| DEWAYNE WARTHEN | 593331 | MARTELLE | 1 |
| DEWEY WHEELER AND SON TRANSPORTATION AND LOGISTICS INC | 2234365 | CENTER POINT | 0 |
| DEWEY'S CONSTRUCTION LLC | 2544870 | DELHI | 1 |
| DEWILD GRANT RECKERT AND ASSOCIATES COMPANY | 2209450 | ROCK RAPIDS | 4 |
| DEWIT TRUCKING INC | 713453 | ROCK VALLEY | 1 |
| DEWITT TRUCKING & FAMILY FARMS LLC | 2795044 | HANLONTOWN | 2 |
| DEXTER DOZING & SCRAPING LLC | 1990183 | WHEATLAND | 5 |
| DEXTER L ACKERMAN | 725020 | DEWAR | 1 |
| DEXTER LAUNDRY INC | 343611 | FAIRFIELD | 6 |
| DEXTER TRUCKING LLC | 3410207 | WEST BEND | 2 |
| DEYOUNG FARMS | 535043 | LAURENS | 3 |
| DEYOUNG TRANSPORTATION CO | 2212714 | LAURENS | 0 |
| DFAUST TRUCKING LLC | 3279717 | EARLHAM | 1 |
| DFF TRUCKING LLC | 2116287 | OSCEOLA | 11 |
| DFM FARMS CO | 1993009 | MARSHALLTOWN | 3 |
| DFS INC | 580787 | NEWELL | 23 |
| DFS OSKALOOSA LLC | 2271514 | OSKALOOSA | 17 |
| DG HOME IMPROVEMENTS LLC | 3120856 | SIOUX CITY | 1 |
| DGG FARMS LLC | 3314297 | MC CLELLAND | 2 |
| DH LLC | 2000375 | DOON | 3 |
| DH TRUCKING INC | 9911578 | JOHNSTON | 4 |
| DH TRUCKING INC | 3004389 | JOHNSTON | 1 |
| DHI LLC | 2147706 | COUNCIL BLUFFS | 2 |
| DHILLON TRANSPORT LLC | 3463760 | CLIVE | 2 |
| DIAGONAL BUILDING PRODUCTS | 2305779 | DIAGONAL | 2 |
| DIAMOND BAR K OUTDOORS LLC | 3523553 | HIAWATHA | 2 |
| DIAMOND BROS | 2111157 | CONRAD | 4 |
| DIAMOND C TRUCKING LLC | 2864442 | KEOTA | 2 |
| DIAMOND CLEANING SYSTEMS INC | 3209127 | HINTON | 1 |
| DIAMOND CONCRETE & CONSTRUCTION INC | 1399655 | SPIRIT LAKE | 7 |
| DIAMOND CUT INC | 1737414 | DAVENPORT | 19 |
| DIAMOND EDGE CONSTRUCTION LLC | 4047981 | SIOUX CENTER | 1 |
| DIAMOND EXPRESS LOGISTICS INC | 2231596 | JOHNSTON | 0 |
| DIAMOND F BROKERAGE INC | 2222588 | DENISON | 0 |
| DIAMOND G TRUCKING LLC | 4502102 | LACONA | 1 |
| DIAMOND K TRANSPORTATION LLC | 4308094 | COLUMBUS JUNCTION | 1 |
| DIAMOND KING TRUCKING LLC | 3809995 | ANKENY | 1 |
| DIAMOND MOBILE DUSTLESS BLASTING LLC | 850850 | MALVERN | 1 |
| DIAMOND N THE ROUGH ENTERPRISE LLC | 4303514 | CEDAR RAPIDS | 1 |
| DIAMOND OAK LLC | 2632769 | CLEAR LAKE | 2 |
| DIAMOND OIL COMPANY | 554371 | DES MOINES | 43 |
| DIAMOND S RANCH LLC | 4146970 | HOLSTEIN | 2 |
| DIAMOND TRAIL TRANSPORTATION LLC | 2420556 | MONROE | 2 |
| DIAMOND TRANSPORT LLC | 3971029 | AKRON | 2 |
| DIAMOND TRANSPORTATION LLC | 9094605 | NORTH LIBERTY | 1 |
| DIAMOND VOGEL INC | 3781887 | ORANGE CITY | 15 |
| DIANA BAKER | 1182246 | WEBSTER CITY | 1 |
| DIANE MEARS | 2483920 | OKOBOJI | 1 |
| DIANE PETERS | 1086930 | LITTLE ROCK | 1 |
| DIANNA MUELLER | 747535 | POSTVILLE | 1 |
| DIAZ EXPRESS TRANSPORTATION LLC | 3831553 | MARSHALLTOWN | 1 |
| DIBERT FARMS TRUCKING LLC | 708414 | NEW ALBIN | 4 |
| DICK CLARK EXCAVATING | 725470 | PERRY | 1 |
| DICK COOK | 726158 | ATLANTIC | 3 |
| DICK COVINGTON | 725554 | VINTON | 1 |
| DICK FRYE | 867016 | INDEPENDENCE | 1 |
| DICK HALLOWELL | 252011 | SMITHLAND | 1 |
| DICK HELGESON | 210788 | DECORAH | 7 |
| DICK MILLER LLC | 1062546 | BETTENDORF | 2 |
| DICK REED | 1341308 | KNOXVILLE | 1 |
| DICK'S AUTO TOWING | 729831 | FAIRFIELD | 4 |
| DICK'S CONCRETE WORK INC | 838640 | MARSHALLTOWN | 5 |
| DICKEY TRANSPORT LLC | 117737 | PACKWOOD | 67 |
| DICKEY TRUCKING LLC | 2071674 | WEBSTER | 1 |
| DICKINSON EXCAVATING & HAULING LLC | 2070979 | RIVERSIDE | 3 |
| DICKMAN TRUCKING LLC | 4416384 | WOODBINE | 1 |
| DIE HARD TRUC'N LLC | 1461006 | SIOUX CITY | 1 |
| DIEDA EXPRESS LLC | 4299024 | DES MOINES | 1 |
| DIEDRICH TRUCKING LLC | 2140462 | KENSETT | 6 |
| DIEDRICHS AND ASSOCIATES INC | 2009014 | CEDAR FALLS | 1 |
| DIEGO A LOPEZ | 2539974 | SIOUX CITY | 3 |
| DIEGO MATEO NICOLAS | 3883124 | SIOUX CITY | 1 |
| DIEOMATIC TRUCKING INCORPORATED | 2223314 | WILLIAMSBURG | 0 |
| DIERCKS LTD | 566302 | DAVENPORT | 13 |
| DIERCKS LTD & ASSOCIATES INC | 3094826 | DAVENPORT | 4 |
| DIERKS TREE-TRANS INC | 2125277 | CEDAR FALLS | 3 |
| DIETERS TRUCKING LLC | 2926073 | INWOOD | 2 |
| DIETRICH HAULING AND FENCE BUILDING INC | 3172323 | WILLIAMSBURG | 1 |
| DIETRICK FARMS INC | 2111686 | LAPORTE CITY | 2 |
| DIETZ ENTERPRISES LLC | 3838639 | DUBUQUE | 4 |
| DIG AMERICA UTILITY CONTRACTING INC | 466993 | BONDURANT | 22 |
| DIG IT LAND IMPROVEMENTS LLC | 4460455 | ELDORA | 1 |
| DIG N DOZE LLC | 662904 | BLOOMFIELD | 1 |
| DIG N IT DRILLING, LLC | 7099073 | GRIMES | 11 |
| DIGGA NORTH AMERICA LLC | 3456187 | DYERSVILLE | 1 |
| DIGGER DANS CONSTRUCTION INC | 1316691 | VAN METER | 1 |
| DIGGIN'IT LLC | 3887587 | KINGSLEY | 1 |
| DIISCHER BROS TRUCKING LLC | 3994701 | ALTA | 3 |
| DILL TRUCKING INC | 198014 | KEOTA | 2 |
| DILLAVOU OIL COMPANY | 1035448 | WAVERLY | 5 |