City Statistics

Active Trucking Companies
in Diamond Bar, CA

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

Diamond Bar, CA FMCSA data • updated weekly 0.14% of California

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369

Active Trucking Companies

0.14% of all active carriers in California

New FMCSA Registrations (24 Mo.)

Avg 1.9 new companies per month (+36.8% YoY)

Median Fleet Size

Power units at the midpoint of all reporting companies

73.7%

Owner-Operator Rate

vs. 77.7% statewide in California

New FMCSA Registrations

Total

1.9

Avg / month

Best: Apr 2026

Lowest: Apr 2023

Company Size Distribution

278

Reporting
Fleets

1 Power Unit 205 73.7%

2–5 Units 61 21.9%

6–20 Units 9 3.2%

21–100 Units 3 1.1%

101+ Units 0 0.0%

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

Company Age Distribution

7.8

Avg age
(years)

0–2 Years 56 15.3%

3–5 Years 82 22.5%

6–10 Years 72 19.7%

11–20 Years 150 41.1%

20+ Years 5 1.4%

Based on FMCSA registration date. Average age: 7.8 years.

Company Authority Types

Carrier 333 90.2%

Broker 36 9.8%

Freight Forwarder 9 2.4%

Shipper 6 1.6%

Intermodal Equipment Provider 4 1.1%

A company may hold multiple authority types simultaneously.

Top 10 Cargo Types

#	Cargo Type	Companies	% of City
1	General Freight	208	56.4%
2	Other	141	38.2%
3	Intermodal Containers	40	10.8%
4	Household Goods	15	4.1%
5	Paper Products	11	3.0%
6	Fresh Produce	9	2.4%
7	Refrigerated Food	9	2.4%
8	Construction	9	2.4%
9	Dry Bulk Commodities	7	1.9%
10	Machinery & Large Objects	7	1.9%

Largest Fleets in Diamond Bar

#	Company	Fleet
1	CTOUR CHARTER LLC	26
2	E&A SAFETY EXPRESS INC	24
3	CTOUR EXPRESS LLC	21
4	TRI-LINES EXPRESS INC	20
5	LITTLE FAT TRUCKING	13
6	UQI EXPRESS INC	13
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: August 26, 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