Concrete companies in Phoenix: big slab crews, 44 permitted plants and who supplies the metro

This report is for builders, developers and owners in the Valley looking for a concrete contractor or a ready-mix supplier, and for B2B sellers whose customers are concrete firms: truck and parts dealers, admixture suppliers, pump and forming rental, staffing and software.

The plants, from Maricopa County's air registry

Concrete batch plants need an air quality permit, and the Maricopa County Air Quality Department publishes the facilities it regulates as an open map layer. Filtered to concrete plants with an operating status, on 30 October 2026:

The operators with the most permitted plants are CalPortland (7), Cemex (4), and Arizona Materials, Desert Ready Mix and Green Fuel Technologies (3 each). Phoenix itself has 16 of the 44, followed by Glendale and Buckeye (6 each) and Peoria (5).

Portable plants outnumber stationary ones, and the registry shows why: big projects get their own. One Desert Ready Mix portable plant is registered under the name "TSMC DRM," the semiconductor site in north Phoenix. The same registry lists 17 operating data centers over 100 megawatts, the kind of project that pours tens of thousands of yards.

The registry also shows the cement supply: terminals run by Cemex (Chandler and Phoenix), CalPortland, GCC (Buckeye), K2 Minerals and Phoenix Cement, a business of the Salt River Pima-Maricopa Indian Community. It doesn't cover plants permitted by the state (Arizona's environmental agency issues some portable-source permits) or anything in Pinal County, which has its own air district.

The market in Census data

Figures for the Phoenix-Mesa-Chandler, AZ Metro Area (CBSA 38060), combining NAICS 238110 (Poured Concrete Foundation and Structure Contractors) and NAICS 327320 (Ready-Mix Concrete Manufacturing). Source: US Census Bureau, County Business Patterns 2023.

The contractor row for 500 or more is the 274 total less the published classes. Across both codes, 255 establishments have fewer than 20 employees; the Census Bureau doesn't publish the combined bands above that.

Pinal's combined employee figure was published but flagged as high-noise, so we leave it out. Its mix stands out: 24 contractors and 19 ready-mix plants, against 250 and 53 in Maricopa.

County Business Patterns counts establishments with paid employees, not companies, and leaves out owner-operators without payroll. Employment is the week of March 12, 2023.

Who the large producers are

No SEC-registered listed concrete company is headquartered in the metro, but several report Phoenix operations in their filings:

Licensing: what to check

Arizona licenses contractors through the Registrar of Contractors. State law (A.R.S. 32-1102) separates commercial, residential and dual licenses, and the ROC issues specialty classifications for single trades, including concrete. A residential-only license doesn't cover a commercial slab, and the reverse. The ROC's own pages and rules didn't load for our automated check, so confirm the exact classification in the ROC contractor search, which also shows the license's bond and complaint record.

How to choose a contractor or a supplier

1. Search the ROC for the license, its type (residential, commercial or dual) and any complaints or disciplinary actions.
2. Ask which plant supplies the mix, then check it's on the county registry as operating. Summer pours need short hauls.
3. Specify strength, slump and placement time in the contract, so a 3 pm truck in July isn't a different product from a 6 am one.
4. On a large job, ask about a portable plant. The registry shows they're common here; the arithmetic below shows why.

Worked example: why big pours get their own plant

Illustrative example. The project and timings are invented to show the arithmetic.

A contractor needs 600 cubic yards a day for a foundation, in 10-yard trucks over a 10-hour window.

Cutting the haul cuts the fleet by seven trucks and drivers a day, and in desert heat it cuts the time the concrete spends in the drum. That's why the registry lists portable plants at the biggest sites.

Selling to Phoenix concrete firms

The registry gives you the plant list with addresses; the ROC search gives you contractor license data. For the step from company to person, see how to find decision makers. Bebop can build the contractor side from a plain description and research each account.

Illustrative example. A mixer-drum repair shop (valleydrum.example) targets the 23 operators on the registry. Plant or fleet manager at each is 23 people; a 15% reply rate is about 3 conversations a month, and two service contracts covering 20 trucks at $1,500 a truck a year is $60,000.

Subject: Drum and chute repairs before summer

Hi [first name],

[Company] runs [number] permitted plants around the Valley, by the county's registry, and summer is hard on drums and fins.

We rebuild drums and chutes in [days] at our [city] shop, with a loaner schedule so trucks stay on routes.

Worth a short call to price a pre-summer inspection?

[Your name]

Local sources

Next step: for the builders and trades around these crews, read the report on construction companies in Phoenix.