City Statistics

Active Trucking Companies
in Diamond Bar, CA

346 active carriers, brokers & freight companies. Located in Los Angeles County.

Diamond Bar, CA FMCSA data • updated weekly 0.13% of California

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346

Active Trucking Companies

0.13% of all active carriers in California

New FMCSA Registrations (24 Mo.)

Avg 1.9 new companies per month (+21.1% YoY)

Median Fleet Size

Power units at the midpoint of all reporting companies

74.6%

Owner-Operator Rate

vs. 77.9% statewide in California

New FMCSA Registrations

Total

1.8

Avg / month

Best: Apr 2026

Lowest: Aug 2024

Company Size Distribution

280

Reporting
Fleets

1 Power Unit 209 74.6%

2–5 Units 59 21.1%

6–20 Units 10 3.6%

21–100 Units 2 0.7%

101+ Units 0 0.0%

Based on total power units reported to FMCSA. Median: 1 unit(s).

Company Age Distribution

7.6

Avg age
(years)

0–2 Years 52 15.2%

3–5 Years 80 23.5%

6–10 Years 69 20.2%

11–20 Years 135 39.6%

20+ Years 5 1.5%

Based on FMCSA registration date. Average age: 7.6 years.

Company Authority Types

Carrier 331 95.7%

Broker 13 3.8%

Freight Forwarder 2 0.6%

Shipper 1 0.3%

A company may hold multiple authority types simultaneously.

Top 10 Cargo Types

#	Cargo Type	Companies	% of City
1	General Freight	181	52.3%
2	Intermodal Containers	31	9.0%
3	Other	13	3.8%
4	Paper Products	12	3.5%
5	Beverages	9	2.6%
6	Motor Vehicles	6	1.7%
7	Fresh Produce	6	1.7%
8	Passengers	6	1.7%
9	Household Goods	5	1.4%
10	Refrigerated Food	5	1.4%

Largest Fleets in Diamond Bar

#	Company	Fleet
1	CTOUR CHARTER LLC	26
2	CTOUR EXPRESS LLC	21
3	TRI-LINES EXPRESS INC	20
4	LITTLE FAT TRUCKING	13
5	UQI EXPRESS INC	13
6	E&A SAFETY EXPRESS INC	10
7	U S DORCAS INC	9
8	GRANDNESS PACIFIC LOGISTICS INC	8
9	SPEAKERS TRANSPORTS CORP	8
10	NEVER ENDING INTERNATIONAL INC	7

Data source: U.S. Federal Motor Carrier Safety Administration (FMCSA) — active carrier registrations. Last updated: July 10, 2026. Active status reflects carriers with FMCSA status code "A" at the time of data collection.

Active Trucking Companiesin Diamond Bar, CA

Browse all active trucking companies in Diamond Bar

Active Trucking Companies
in Diamond Bar, CA