What is a USDOT number?

The U.S. Department of Transportation number identifies a company that operates commercial vehicles hauling cargo or passengers in interstate commerce, and in many states for trips within the state too.

An MC (motor carrier) number is the operating authority FMCSA grants to for-hire carriers that move regulated goods or passengers across state lines. Private carriers hauling their own goods do not need one.

What do the safety ratings mean?

FMCSA rates a carrier Satisfactory, Conditional or Unsatisfactory after an on-site compliance review. Most carriers have never had a review and are unrated, which does not mean they are unsafe.

Checked Oct 26, 2026

Trucking Companies in San Luis Obispo County

Active motor carriers whose principal place of business is in San Luis Obispo County, California.

Active carriers: 2,112
Power units: 6,108; Trucks and tractors reported
Drivers: 6,606
Interstate carriers: 125

Carriers in San Luis Obispo County

Share of active carriers

For hire (carry goods for others)1,50871.4%
Private (carry their own goods)69132.7%
Passenger carriers1115.3%
Hazardous materials592.8%

Fleet size (power units)

None reported68132.2%
187141.2%
2 to 539018.5%
6 to 10733.5%
11 to 50864.1%
51 to 10090.4%
More than 10020.1%

Fleet and driver counts are self-reported by each company on FMCSA Form MCS-150 and can be out of date. Values that look like typing errors (for example 99,999 trucks for a small company) are treated as not reported. Pages list companies registered as businesses; owner-operators registered as individuals are counted in totals but not named.

Largest carriers in San Luis Obispo County

Swipe the table sideways to see more columns.

#	Company	Power units	Drivers	Type
1	Pearce Services LLCUSDOT 2077881	828	561	Private
2	Mge Underground IncUSDOT 2621958	407	330	Passenger
3	Papich Construction Co IncUSDOT 2318495	76	76	Private
4	San Luis Obispo Regional Transit AuthorityUSDOT 2808443	68	72	Passenger
5	Leo Tidwell Excavating CorporationUSDOT 2666298	57	50	Private
6	Alliance Ready Mix IncUSDOT 2683570	56	56	For hire
7	Paso Robles Joint Unified School DistrictUSDOT 3383194	55	15	For hire
8	Meathead Movers IncUSDOT 921143	53	76	For hire
9	Energy Delivery Partners IncUSDOT 3348669	47	35	Private
10	San Luis Coastal Unified School DistrictUSDOT 2807784	46	32	Passenger
11	Lucia Mar Unified School DistrictUSDOT 2620686	42	26	Passenger
12	Paso Robles Waste Disposal IncUSDOT 2739003	42	27	Private
13	Access Limited Construction IncUSDOT 2478999	41	47	Private
14	Specialty Construction IncUSDOT 2736434	41	13	Private
15	Sprouse Communications IncUSDOT 2694655	40	27	Private
16	FW Fleetclean LLCUSDOT 3561179	40	65	Private
17	Paso Robles Public SchoolsUSDOT 2808527	36	32	Private
18	San Luis Garbage CoUSDOT 217395	33	33	Private
19	Sunrun Installatin Services IncUSDOT 1382779	32	26	Private
20	Community Action Partnership of Slo County IncUSDOT 2669087	32	9	Passenger
21	Atascadero Unified School DistrictUSDOT 2807852	32	17	Passenger
22	Ellison Environmental IncUSDOT 2421331	31	32	Private
23	Filipponi Thompson Drilling CoUSDOT 2620304	31	19	For hire
24	Nosebeard Enterprises LLCUSDOT 2777461	31	42	For hire
25	Cal-South Harvesting LLCUSDOT 2711212	30	5	For hire
26	Dave Spurr Excavating IncUSDOT 3265477	29	19	Private
27	PDB Grid Works IncUSDOT 4164891	29	33	Private
28	Bejo Seeds IncUSDOT 1782473	25	25	Private
29	Slo Leasing LLCUSDOT 2758305	25	26	For hire
30	Madera Disposal Systems IncUSDOT 504877	24	15	For hire
31	Idlers IncUSDOT 2613347	24	24	For hire
32	County of San Luis Obispo, Engineering DepartmentUSDOT 2662226	24	75	Private
33	Precision Directional Boring IncUSDOT 2388114	23	28	Private
34	Raminha Construction IncUSDOT 2615027	23	25	Private
35	Kings Oil Tools, IncUSDOT 2678159	23	7	For hire
36	Midcoast Suppliers IncUSDOT 2668532	22	7	Private
37	Kritz Excavating & Trucking IncUSDOT 1328924	21	9	Private
38	Mesa Vineyard Management LLCUSDOT 2673192	20	17	For hire
39	Uncorked Wine Tours IncUSDOT 2722258	20	9	For hire
40	All About Produce CompanyUSDOT 3748116	20	3	Private
41	Jdamco IncUSDOT 3813088	20	16	Private
42	Coast Unified School DistrictUSDOT 2674957	19	5	Passenger
43	Sycan CorpUSDOT 741336	18	12	Private
44	Sams Tree 805 IncUSDOT 2879892	18	9	Private
45	Cordelle Industries IncUSDOT 3615069	18	10	Private
46	San Luis Ambulance Service IncUSDOT 4067998	18	100	For hire
47	A-Jay Excavating IncUSDOT 34396	17	10	For hire
48	Asap Movers IncUSDOT 1278931	17	23	For hire
49	Johnboy's Towing IncUSDOT 2383920	17	8	For hire
50	David Crye General Engineering Contractor IncUSDOT 2778083	17	14	Private
51	Mike Cole Farms IncUSDOT 2849564	17	5	For hire
52	Chalky Ridge Vineyard Management LLCUSDOT 3576403	17	14	For hire
53	Wick's Roofing and Solar LLCUSDOT 4484170	17	16	Private
54	Coastal Demo IncUSDOT 2625544	16	12	For hire
55	North County Christian Fellowship IncUSDOT 2659109	16	2	Passenger
56	Steve's ATV Service IncUSDOT 1608079	15	8	For hire
57	Pacific Coast Well Drilling IncUSDOT 2381540	15	26	Private
58	JTS IncUSDOT 2617092	15	15	For hire
59	City of San Luis ObispoUSDOT 2621537	15	39	Passenger
60	West Coast Auto & Towing IncUSDOT 2687426	15	15	For hire
61	Simons Construction IncUSDOT 2694664	15	11	Private
62	Troy Construction IncUSDOT 2971584	15	4	Private
63	Edwards Construction Group IncUSDOT 3814009	15	13	Private
64	Lee Wilson Electric Company IncUSDOT 2854131	14	10	Private
65	E&p Waste LLCUSDOT 3688019	14	15	For hire
66	Delta Liquid Energy Holdings LLCUSDOT 2435013	13	12	For hire
67	R Baker IncUSDOT 2663748	13	14	Private
68	World Wide Horse Services IncUSDOT 1078500	12	12	For hire
69	Central Coast Transfer IncUSDOT 1442037	12	25	For hire
70	Case Pacific CoUSDOT 2013524	12	2	Private
71	Solarponics IncUSDOT 2601240	12	2	Private
72	Viborg Sand & Gravel IncUSDOT 2644845	12	10	For hire
73	Air Vol Block LLCUSDOT 2658755	12	3	Private
74	Marks Tire Service IncUSDOT 2718221	12	7	Private
75	Harvest Rentals IncUSDOT 2879920	12	10	For hire
76	Seamair Construction IncUSDOT 2923139	12	28	Private
77	Whitaker Construction Group IncUSDOT 3303959	12	14	Private
78	San Miguel Joint Union School DistrictUSDOT 2670727	11	10	Passenger
79	San Miguel Roll Off IncUSDOT 2683708	11	11	For hire
80	Alltech Services IncUSDOT 2697116	11	4	For hire
81	Elegant Image Limo IncUSDOT 2704713	11	14	For hire
82	Atascadero Glass LLCUSDOT 2764101	11	22	Private
83	BC Tatum Ventures IncUSDOT 2802520	11	8	Private
84	General Lee Enterprises IncUSDOT 2923052	11	12	Private
85	Andros Engineering CorporationUSDOT 1443235	10	10	For hire
86	Bulk Or Liquid Transport LLCUSDOT 1504623	10	7	For hire
87	San Miguel Garbage Co IncUSDOT 2665274	10	10	For hire
88	Miller Drilling CoUSDOT 2666331	10	5	Private
89	City of Morro BayUSDOT 2672308	10	6	Passenger
90	Grand Cru Limousine LLCUSDOT 3029697	10	4	Passenger
91	Toast Tours LLCUSDOT 3101515	10	12	For hire
92	Marillo Holdings IncUSDOT 4327452	10	10	Private
93	Paso Robles Tank IncUSDOT 1841984	9	5	Private
94	Electricraft IncUSDOT 2605309	9	4	Private
95	Atkinson Concrete Construction IncorporatedUSDOT 2687373	9	6	Private
96	G & P Trucking IncUSDOT 2709612	9	6	For hire
97	BJ's ATV Rentals IncUSDOT 3066206	9	6	Private
98	New Era Landscape IncUSDOT 3306266	9	6	Private
99	Perennial Capital LLCUSDOT 4138061	9	10	Private
100	N Rex Awalt CorporationUSDOT 2653454	8	2	Private

Show all 100Show fewer

Frequently asked questions

What is a USDOT number?: The U.S. Department of Transportation number identifies a company that operates commercial vehicles hauling cargo or passengers in interstate commerce, and in many states for trips within the state too.
What is a MC number?: An MC (motor carrier) number is the operating authority FMCSA grants to for-hire carriers that move regulated goods or passengers across state lines. Private carriers hauling their own goods do not need one.
What do the safety ratings mean?: FMCSA rates a carrier Satisfactory, Conditional or Unsatisfactory after an on-site compliance review. Most carriers have never had a review and are unrated, which does not mean they are unsafe.

Source: Federal Motor Carrier Safety Administration, Company Census File · Last updated 10/22/2026

Data sources

Company Census File (motor carriers)Federal Motor Carrier Safety Administration

Data as of 10/22/2026

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