Trucking Companies in SAN MARCOS, California

What FMCSA data shows for SAN MARCOS, California

Active motor carriers headquartered here

664

Reported power units

2,157 across the 663 of 664 carriers that reported fleet data

Reported drivers

2,552 across the 663 of 664 carriers that reported driver counts

Reported fleet size

• 1–5 power units 353
• 6–24 34
• 25–99 12
• 100 or more 2
• Reported zero 262
• Not reported 1

Largest carriers by reported power units

The 25 carriers headquartered in SAN MARCOS, California with the most power units reported to FMCSA. Fleet size is not a ranking of pay, safety, or hiring.

• DIAMOND ENVIRONMENTAL SERVICES LP

  • USDOT 1811463
  • SAN MARCOS
  • Power units 319
  • Drivers 223

• SUNSET DISTRIBUTING LLC

  • USDOT 4400932
  • SAN MARCOS
  • Power units 176
  • Drivers 110

• SAN MARCOS UNIFIED SCHOOL DISTRICT

  • USDOT 2673527
  • SAN MARCOS
  • Power units 99
  • Drivers 92

• STONE DISTRIBUTING

  • USDOT 3941360
  • SAN MARCOS
  • Power units 93
  • Drivers 97

• ACTION AIR CONDITIONING HEATING & SOLAR

  • USDOT 3865882
  • SAN MARCOS
  • Power units 89
  • Drivers 127

• MADE IT LOGISTICS LLC

  • USDOT 3463360
  • SAN MARCOS
  • Power units 80
  • Drivers 85

• ACTION AIR CONDITIONING & HEATING

  • USDOT 2662292
  • SAN MARCOS
  • Power units 71
  • Drivers 77

• CITY OF SAN MARCOS

  • USDOT 2611526
  • SAN MARCOS
  • Power units 68
  • Drivers 55

• CITY OF SAN MARCOS

  • USDOT 4487659
  • SAN MARCOS
  • Power units 68
  • Drivers 46

• HOLLANDIA DAIRY INC

  • USDOT 2621680
  • SAN MARCOS
  • Power units 67
  • Drivers 77

• CANNON PACIFIC SERVICES INC

  • USDOT 2751232
  • SAN MARCOS
  • Power units 37
  • Drivers 29

• SOUTHERN CONTRACTING COMPANY

  • USDOT 1310227
  • SAN MARCOS
  • Power units 35
  • Drivers 34

• CALIFORNIA TREE SERVICE INC

  • USDOT 2848980
  • SAN MARCOS
  • Power units 29
  • Drivers 29

• M BAR C CONSTRUCTION INC

  • USDOT 2437359
  • SAN MARCOS
  • Power units 27
  • Drivers 27

• MARKSTEIN BEVERAGE CO

  • USDOT 2735575
  • SAN MARCOS
  • Power units 22
  • Drivers 32

• RAP ENGINEERING INC

  • USDOT 2767724
  • SAN MARCOS
  • Power units 20
  • Drivers 8

• AIRX UTILITY SURVEYORS INC

  • USDOT 2615012
  • SAN MARCOS
  • Power units 19
  • Drivers 20

• GREEN PERSPECTIVES

  • USDOT 2722381
  • SAN MARCOS
  • Power units 19
  • Drivers 19

• BLU BULK TRANSPORT INC

  • USDOT 3888863
  • SAN MARCOS
  • Power units 16
  • Drivers 12

• THE TROPICAL CONNECTION

  • USDOT 528036
  • SAN MARCOS
  • Power units 13
  • Drivers 10

• LUSARDI CONSTRUCTION COMPANY

  • USDOT 604372
  • SAN MARCOS
  • Power units 13
  • Drivers 6

• 619 ROOFING LLC

  • USDOT 3647593
  • SAN MARCOS
  • Power units 13
  • Drivers 17

• FOUR SEASONS TREE CARE INC

  • USDOT 2695499
  • SAN MARCOS
  • Power units 12
  • Drivers 20

• STINGRAY DISTRIBUTING INC

  • USDOT 2577901
  • SAN MARCOS
  • Power units 11
  • Drivers 7

• MARBLE EXPRESSIONS INC

  • USDOT 2603603
  • SAN MARCOS
  • Power units 11
  • Drivers 11

More in California

All trucking companies in California

• LOS ANGELES (17,937)
• FRESNO (8,672)
• BAKERSFIELD (8,430)
• SACRAMENTO (6,802)
• SAN DIEGO (6,762)
• SAN JOSE (5,117)
• FONTANA (4,320)
• RIVERSIDE (4,286)
• STOCKTON (4,012)
• ANAHEIM (3,186)
• ONTARIO (3,153)
• LONG BEACH (3,134)
• OAKLAND (3,078)
• HAYWARD (2,729)
• MANTECA (2,335)
• SANTA ANA (2,250)
• SAN BERNARDINO (2,243)
• MODESTO (2,240)
• SAN FRANCISCO (2,239)
• MORENO VALLEY (1,962)

About this page

Company locations are based on principal physical addresses reported to FMCSA. They do not necessarily represent hiring areas, service areas, terminal locations, or current job availability.

Source: Federal Motor Carrier Safety Administration (FMCSA) Company Census data. FMCSA data as of: August 15, 2026. FMCSA registration data may change over time. This site is not affiliated with or endorsed by FMCSA.