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 Diego County

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

Active carriers: 19,481
Power units: 46,068; Trucks and tractors reported
Drivers: 56,940
Interstate carriers: 3,207

Carriers in San Diego County

Share of active carriers

For hire (carry goods for others)14,64575.2%
Private (carry their own goods)5,27827.1%
Passenger carriers9524.9%
Hazardous materials7153.7%

Fleet size (power units)

None reported6,76134.7%
18,19442.1%
2 to 53,33917.1%
6 to 106023.1%
11 to 504812.5%
51 to 100640.3%
More than 100400.2%

Fleet and driver counts are self-reported by each company on FMCSA Form MCS-150 and can be out of date.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 Diego County

Swipe the table sideways to see more columns.

#	Company	Power units	Drivers	Type
1	City of San DiegoUSDOT 2618492	1,091	952	Passenger
2	Edco Disposal CorporationUSDOT 193431	974	407	Private
3	San Diego Gas & Electric CompanyUSDOT 2805637	669	1,380	Private
4	San Diego Unified School DistrictUSDOT 2808560	436	412	Passenger
5	Pro Energy Services Group LLCUSDOT 3295344	334	137	Passenger
6	Diamond Environmental Services LPUSDOT 1811463	319	223	Private
7	Altman Specialty Plants LLCUSDOT 440672	311	309	For hire
8	NRC Environmental Services IncUSDOT 502728	284	146	For hire
9	Sweetwater Union High School DistrictUSDOT 2646562	263	79	Passenger
10	San Diego Transit CorporationUSDOT 2738633	259	641	For hire
11	Edco Transport Services LLCUSDOT 2758347	256	160	For hire
12	North County Transit DistrictUSDOT 2672992	222	325	Passenger
13	Bali Express Services IncUSDOT 1582957	220	255	For hire
14	Chula Vista Elementary School DistrictUSDOT 2741279	204	76	Passenger
15	Waste Management of California IncUSDOT 2831542	198	201	Private
16	Crown Xpress Transport IncUSDOT 1099085	190	145	For hire
17	Hawthorne Machinery CoUSDOT 1840079	190	134	Private
18	Waxie's Enterprises LLCUSDOT 548621	185	178	Private
19	Cox Communications California LLCUSDOT 1139485	181	181	Private
20	Mc Express Trucking LLCUSDOT 1605607	178	207	For hire
21	Sunset Distributing LLCUSDOT 4400932	176	110	Private
22	Poway Unified School DistrictUSDOT 2809938	173	146	Passenger
23	Duran Freight CorpUSDOT 461506	161	239	For hire
24	Encore Textile Services LLCUSDOT 3773585	160	255	Private
25	Hanson Aggregates Pacific Southwest IncUSDOT 2645080	152	141	For hire
26	JFG International IncUSDOT 2011161	145	199	For hire
27	County of San DiegoUSDOT 2805628	143	582	Passenger
28	Logitrans IncUSDOT 2899531	142	141	For hire
29	Pegaso Packing IncUSDOT 1377267	134	63	For hire
30	F J Willert Contracting CoUSDOT 2652424	131	150	For hire
31	Dynalectric CompanyUSDOT 9422822	127	125	Private
32	MDD Logistics IncUSDOT 2369633	114	114	For hire
33	DLR Autotransportes LLCUSDOT 2863750	113	108	For hire
34	Ace Relocation Systems IncUSDOT 1052359	108	89	For hire
35	Onesource Distributors LLCUSDOT 923644	106	92	Private
36	Westair Gases and Equipment IncUSDOT 984817	106	90	For hire
37	Cal-Mex International Broker IncUSDOT 168705	101	101	For hire
38	Select Electric IncUSDOT 2649662	100	22	Private
39	Jouthe Xpress LLCUSDOT 3426818	100	100	For hire
40	San Marcos Unified School DistrictUSDOT 2673527	99	92	Passenger
41	Solv Energy LLCUSDOT 3783496	98	85	Private
42	Chula Vista Elementary School DistrictUSDOT 4474300	96	65	Passenger
43	St Distributing Co LLCUSDOT 3941360	93	97	For hire
44	S & M Leasing LLCUSDOT 529031	91	86	Private
45	Pgma LLCUSDOT 3865882	89	127	Private
46	Corovan Moving & Storage CoUSDOT 2114632	88	165	For hire
47	Color Spot Nurseries IncUSDOT 2919416	86	95	For hire
48	Sysco San Diego IncUSDOT 788750	84	116	For hire
49	Harvest Meat Company IncUSDOT 587592	83	92	For hire
50	Miller Freight & Logistics IncUSDOT 2273855	83	96	For hire
51	Add Express IncUSDOT 570357	82	89	For hire
52	Made It Logistics LLCUSDOT 3463360	80	85	For hire
53	Coast Citrus Distributors LLCUSDOT 235681	78	44	For hire
54	Pacific Gypsum Supply IncUSDOT 2634473	77	81	Private
55	Grossmont Union High School DistrictUSDOT 2654138	77	68	Passenger
56	Superior Ready Mix Concrete LPUSDOT 434988	76	44	Private
57	OTD Logistics IncorporatedUSDOT 1452338	75	72	For hire
58	California Marine Cleaning IncUSDOT 575367	73	57	For hire
59	Oceanside Unified School DistrictUSDOT 575944	73	50	Passenger
60	Accurate Comfort Systems IncUSDOT 2662292	71	77	Private
61	Zagami IncUSDOT 1614603	70	42	Private
62	A To Z Enterprises IncUSDOT 2849661	70	49	For hire
63	City of San MarcosUSDOT 2611526	68	55	Private
64	City of San MarcosUSDOT 4487659	68	46	Private
65	Hollandia Dairy IncUSDOT 2621680	67	77	For hire
66	Patriot General Engineering IncUSDOT 2687354	67	60	Private
67	Cass Construction IncUSDOT 2729090	67	49	Private
68	Crest Beverage LLCUSDOT 2865941	66	58	For hire
69	Sullivan Solar Power of California IncUSDOT 2882047	65	40	Private
70	Capstone Fire Management IncUSDOT 1120581	62	56	Private
71	Valley Thrift IncUSDOT 2659191	62	62	For hire
72	San Dieguito Union High School DistrictUSDOT 2671797	62	38	Passenger
73	Break Bread IncUSDOT 4291126	61	12	For hire
74	Alliance Diversified Enterprises IncUSDOT 2407748	60	50	For hire
75	T C Construction Co IncUSDOT 861162	59	30	Private
76	City of La MesaUSDOT 2810953	59	127	Private
77	Toroco Trucking LLCUSDOT 1213253	57	55	For hire
78	Transport Logistic CorporationUSDOT 1461512	57	52	For hire
79	Camacho Brokers IncUSDOT 268727	56	56	For hire
80	Global Power Group IncUSDOT 1775719	56	6	Private
81	Rust & Sons Trucking IncUSDOT 479041	55	46	For hire
82	Apex Mechanical Systems IncUSDOT 2758160	55	55	For hire
83	Downstream Services IncUSDOT 3185547	55	68	Private
84	Bay City Equipment Industries IncUSDOT 1925017	54	41	Private
85	Orion Construction CorporationUSDOT 3147430	54	57	Private
86	Sunbelt Towing IncUSDOT 1303384	53	37	For hire
87	Prodon CorpUSDOT 2692990	53	38	Private
88	La Mesa Spring Valley School DistrictUSDOT 2810028	53	28	Passenger
89	Greenfield Fence IncUSDOT 2720928	52	114	Private
90	Allied Gardens Towing IncUSDOT 474420	51	39	For hire
91	Multimodal Esquer IncUSDOT 752830	51	41	For hire
92	JL Xpress IncUSDOT 2563169	51	44	For hire
93	Cajon Valley Union School DistrictUSDOT 2668791	51	31	Passenger
94	California American Water CompanyUSDOT 2806615	51	110	Private
95	Corodata Records Management IncUSDOT 2885635	51	51	Private
96	Mat Parcel Express IncUSDOT 927424	50	64	For hire
97	Caspers Concrete Cutting IncUSDOT 1667573	50	75	Private
98	Baker Electric & Renewables LLCUSDOT 2338592	50	50	For hire
99	Fallbrook Union Elementary School DistrictUSDOT 2626562	50	19	Passenger
100	Amazing Courier Express Services LLCUSDOT 3194370	50	80	For hire

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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