Trucking companies in Houston: port drayage, chemical haulers and how to vet a carrier

This report is for Houston shippers and plant logistics teams choosing a carrier, drivers comparing employers, and B2B sellers whose customers are trucking companies: insurers, factoring firms, dealers, tank washes and software providers.

Why Houston trucking looks different

Two things shape the market. The first is the port. The Greater Houston Partnership's Houston Facts 2026 reports that Port Houston handled a record 4.3 million TEUs (twenty-foot equivalent units) in 2025, 4% more than in 2024, making it the fifth-busiest US container port and the handler of 75% of Gulf Coast container traffic. Every one of those boxes moves to or from the terminal by truck.

The second is the petrochemical complex. The same report says more than 200 public and private terminals line the 52-mile Houston Ship Channel, and that plastics and resins, chemicals, and machinery and electronics made up 66.9% of container exports through Port Houston. That's a steady flow of resin, packaged chemicals and bulk liquids that needs hazmat-qualified carriers.

Houston trucking in Census data

County Business Patterns 2023 covers NAICS 484 (Truck Transportation) in the Houston-Pasadena-The Woodlands, TX Metro Area (CBSA 26420).

For comparison, the Chicago trucking report counts more than four times as many establishments, at 5.2 employees each. Houston has fewer carriers, and they are bigger.

Specialized freight is where Houston stands out. NAICS 484220 and 484230 cover carriers that need special equipment, such as tankers for bulk liquids, flatbeds, dump trucks and hazmat rigs. Together they run 652 establishments with 10,815 employees, about a third of the metro's trucking jobs, at more than twice the size of a typical truckload carrier.

Size and location

The two top cells are withheld by the Census Bureau to protect confidentiality. The published classes add up to 3,071, so one establishment has at least 500 employees. In broader bands: 2,750 establishments have 1 to 19 employees, 253 have 20 to 99, and 69 have 100 or more. Those 69 employ at least 9,500 people between them, almost a third of the total.

Harris County has 69% of the establishments and 77.7% of the jobs, at 11.5 employees per site. The suburban counties run smaller: about 6 per site in Fort Bend and Montgomery, and about 8 in Brazoria and Galveston. Chambers County's employee count is withheld.

What the counts miss

County Business Patterns counts establishments with paid employees, not companies. Owner-operators with no employees aren't included, and a carrier with three Houston yards counts three times. Private fleets, such as a chemical maker's own trucks, are counted in the owner's industry. Employment is the week of March 12, 2023. Other sources count differently: Houston Facts 2026 cites 1,625 long-distance trucking establishments in the metro in the fourth quarter of 2025, a different survey and a narrower slice of the industry, so don't add the two.

Match the carrier to the freight

How to vet a Houston carrier

1. Look up the USDOT number in FMCSA's SAFER Company Snapshot for size, cargo types, inspections, crashes and any safety rating. Check operating authority and insurance on file for interstate for-hire work.
2. For loads that stay in Texas, check the carrier's TxDMV number; the Texas trucking report explains who needs one and how to look it up.
3. For port work, confirm the drivers hold valid TWIC cards and the company has a UIIA-approved SCAC and plates registered in Lynx. Port Houston won't let a truck through the gate without them.
4. For hazmat, ask for the PHMSA registration, which carriers of placarded quantities must hold under 49 CFR 107.601. For the most dangerous materials (certain explosives, toxic-by-inhalation and radioactive loads) a carrier also needs an FMCSA hazardous materials safety permit.
5. Check the insurance against the load. Federal minimum liability is $750,000 for general freight, $1,000,000 for most hazardous materials and $5,000,000 for hazardous substances in bulk tanks or hoppers. Ask for a certificate naming you.
6. Plan for the season. The Atlantic hurricane season officially runs from June 1 to November 30, peaking around September 10, and a small fleet can lose its yard or its drivers to one storm. Line up a second carrier before you need it.

Selling to Houston trucking companies

Port volume is the timing signal for drayage carriers: a record year means more appointments, chassis and driver hiring. Chemical carriers buy around plant turnarounds and safety audits, and everyone reviews storm plans before June. For finding the people behind each fleet, see how to find decision makers.

Illustrative example. The seller, its prices and its share estimate are invented; the counts are from the Census data above.

Channelside Dispatch (channelside.example) sells appointment and dispatch software to drayage carriers. Its sweet spot is fleets with 5 to 49 employees, big enough to juggle dozens of daily moves, small enough to still dispatch by spreadsheet. The metro has 613 trucking establishments in that range. If one in five does regular port work, that's about 120 accounts. Winning 8% of them, about 10 carriers at $400 a month, is $48,000 a year. Channelside starts with carriers registered for Port Houston access and recent driver job postings that mention TWIC. Bebop finds carriers matching a description like that and drafts the first email.

Subject: [company]'s Bayport turns

Hi [first name],

I saw [company] is hiring TWIC drivers for Bayport and Barbours Cut moves. With Port Houston at record container volumes, most fleets your size tell us the bottleneck is dispatch, not trucks.

We give small drayage carriers one screen for appointments, chassis and driver moves, so a missed slot doesn't cost a day.

Worth 15 minutes on [day] to see whether it fits how you dispatch today?

[Your name]

Local sources

Next step: compare Houston with the rest of the state in the report on trucking companies in Texas.