How fleet size and driver counts changed among South Dakota trucking companies between November 2024 and October 2026, based on what each company reports to FMCSA. Updated weekly.
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406 active South Dakota carriers that reported at least 5 power units in both November 2024 and October 2026 grew from 7,999 to 8,396 power units (+5%). That ranks South Dakota 31 of 50 states by percent change in reported fleet size.
Over the same period their combined reported driver count fell from 7,927 to 7,834 (-1.2%), compared with +5% nationally.
ROCHESTER ARMORED CAR CO INC added the most power units, from 280 to 350.
South Dakota accounts for 0.2% of the net power units added by comparable carriers nationwide.
The average fleet among these carriers is 20.7 power units, against 36.4 nationally.
45 carriers with at least 5 power units appear in the October 2026 data that were not in the November 2024 data, and 42 carriers from November 2024 no longer appear. These are not counted in the totals above.
| # | Company | USDOT # | HQ | Power units | Added | Growth | Drivers | Added | Growth |
|---|---|---|---|---|---|---|---|---|---|
| 1 | ROCHESTER ARMORED CAR CO INC | 208000 | Sioux Falls, SD | 280 → 350 | +70 | +25% | 608 → 350 | -258 | -42% |
| 2 | DAKOTA STEEL & SUPPLY | 198034 | Rapid City, SD | 142 → 192 | +50 | +35% | 134 → 134 | 0 | 0% |
| 3 | SILCHUK TRANSPORT LLC | 2072826 | Sioux Falls, SD | 54 → 100 | +46 | +85% | 45 → 77 | +32 | +71% |
| 4 | MORRIS INC | 146067 | Fort Pierre, SD | 42 → 77 | +35 | +83% | 58 → 55 | -3 | -5% |
| 5 | CARSTENSEN CONTRACTING INC | 452580 | Dell Rapids, SD | 30 → 62 | +32 | +107% | 21 → 64 | +43 | +205% |
| 6 | GRASS LAND COLONY | 506034 | Westport, SD | 9 → 36 | +27 | +300% | 47 → 28 | -19 | -40% |
| 7 | SILK ROAD LOGISTICS LLC | 3016823 | Pierre, SD | 7 → 33 | +26 | +371% | 7 → 37 | +30 | +429% |
| 8 | TRANSOURCE TRUCK & EQUIPMENT | 3073145 | Sioux Falls, SD | 15 → 39 | +24 | +160% | 10 → 11 | +1 | +10% |
| 9 | HARMS OIL COMPANY | 175877 | Aberdeen, SD | 168 → 190 | +22 | +13% | 125 → 125 | 0 | 0% |
| 10 | CSS FARMS LLC | 632653 | Watertown, SD | 235 → 256 | +21 | +9% | 93 → 93 | 0 | 0% |
| # | Company | USDOT # | HQ | Power units | Added | Growth | Drivers | Added | Growth |
|---|---|---|---|---|---|---|---|---|---|
| 1 | JAMES RIVER TRANSPORTATION LLC | 2920339 | Olivet, SD | 8 → 15 | +7 | +88% | 20 → 72 | +52 | +260% |
| 2 | CARSTENSEN CONTRACTING INC | 452580 | Dell Rapids, SD | 30 → 62 | +32 | +107% | 21 → 64 | +43 | +205% |
| 3 | AGTEGRA COOPERATIVE | 66197 | Aberdeen, SD | 464 → 398 | -66 | -14% | 464 → 505 | +41 | +9% |
| 4 | SILCHUK TRANSPORT LLC | 2072826 | Sioux Falls, SD | 54 → 100 | +46 | +85% | 45 → 77 | +32 | +71% |
| 5 | SILK ROAD LOGISTICS LLC | 3016823 | Pierre, SD | 7 → 33 | +26 | +371% | 7 → 37 | +30 | +429% |
| 6 | CLIFF VIESSMAN INC (A SOUTH DAKOTA CORPORATION) | 164259 | Gary, SD | 370 → 323 | -47 | -13% | 433 → 460 | +27 | +6% |
| 7 | PRAIRIE STATES TRUCKING INC | 1347420 | Sioux Falls, SD | 51 → 67 | +16 | +31% | 25 → 48 | +23 | +92% |
| 8 | MID STATES TRANSPORT INC | 249774 | Sioux Falls, SD | 14 → 10 | -4 | -29% | 12 → 31 | +19 | +158% |
| 9 | CAPITOLA TRUCKING LLC | 151113 | Doland, SD | 7 → 7 | 0 | 0% | 16 → 31 | +15 | +94% |
| 10 | DAKOTA CARRIERS INC | 492947 | Sioux Falls, SD | 74 → 85 | +11 | +15% | 70 → 85 | +15 | +21% |
| # | Company | USDOT # | HQ | Power units | Added | Growth | Drivers | Added | Growth |
|---|---|---|---|---|---|---|---|---|---|
| 1 | AGTEGRA COOPERATIVE | 66197 | Aberdeen, SD | 464 → 398 | -66 | -14% | 464 → 505 | +41 | +9% |
| 2 | HEYL TRUCK LINES INC | 65762 | Sioux Falls, SD | 550 → 490 | -60 | -11% | 550 → 490 | -60 | -11% |
| 3 | CLIFF VIESSMAN INC (A SOUTH DAKOTA CORPORATION) | 164259 | Gary, SD | 370 → 323 | -47 | -13% | 433 → 460 | +27 | +6% |
| 4 | AMB EXPRESS INC | 2539927 | Sioux Falls, SD | 33 → 16 | -17 | -52% | 36 → 13 | -23 | -64% |
| 5 | SHI INC | 1107551 | North Sioux City, SD | 26 → 16 | -10 | -38% | 26 → 16 | -10 | -38% |
| 6 | LOCKEN OIL LLC | 1891781 | Isabel, SD | 26 → 16 | -10 | -38% | 18 → 14 | -4 | -22% |
| 7 | MARQUARDT- SKYWAY TRANSPORTATION | 2200255 | Yankton, SD | 65 → 55 | -10 | -15% | 65 → 47 | -18 | -28% |
| 8 | DIZCO INC | 44421 | Sioux Falls, SD | 27 → 18 | -9 | -33% | 42 → 37 | -5 | -12% |
| 9 | MARK GROSS TRUCKING LLC | 583486 | Bridgewater, SD | 14 → 5 | -9 | -64% | 7 → 5 | -2 | -29% |
| 10 | WESTERN PROVISIONS INC | 196545 | Sioux Falls, SD | 45 → 37 | -8 | -18% | 47 → 40 | -7 | -15% |
Carriers shown are active for-hire carriers with their registered address in South Dakota, at least 5 power units in both months, and no passenger carriers. Counts come from each company's FMCSA (MCS-150) filings, so they are only as current as its last filing, and a large change can be a correction or a merger rather than growth. They do not show hiring or layoffs. See the methodology. More views: fastest by percent growth, fastest driver growth, and the national ranking.
