Semiconductor companies in Arizona: 40 chip plants, the CHIPS awards and the headquarters around Phoenix

This page is for engineers and technicians weighing Arizona employers, suppliers trying to qualify into the state's fabs, and B2B sellers whose customers are chipmakers and their supply chain. It covers the Census count, every federal CHIPS award in the state with its date, the chip companies headquartered in Arizona, and a prospecting example.

The Census count

County Business Patterns 2023 counts NAICS 334413 (semiconductor and related device manufacturing) in Arizona:

Maricopa County has 34 of the establishments and 11,599 of the jobs; Pima County (Tucson) has 5 and 540. The Census Bureau marks these employment figures as moderately affected by the noise it adds for confidentiality. By jobs, Arizona ranks fourth, behind Texas, Oregon and California, and it holds 10.6% of US semiconductor manufacturing employment in CBP (our calculation). The count is a March 2023 snapshot of establishments with paid employees, before TSMC's first Phoenix fab reached volume production, so it understates today's workforce.

Federal CHIPS awards in Arizona

The Arizona-site amounts add up to about $11.0 billion (our sum of $6.6 billion, $3.94 billion, $407 million and $100 million). Each incentive award followed a preliminary agreement (TSMC's on 8 April 2024, Intel's on 20 March 2024), and Commerce pays the money as companies hit project milestones. Two later events changed the picture:

• Intel's grants became equity. On 22 August 2025, Intel signed an agreement with the Department of Commerce under which the government would disburse $8,869,800,000 ($5.695 billion of accelerated CHIPS funds and $3.1748 billion from the Secure Enclave program) in exchange for up to 433,323,000 Intel shares. Intel's 8-K says the deal converts future grant funding into government-owned common stock and may make the US government its largest stockholder.
• TSMC added $100 billion. A Commerce release dated 16 July 2026 announced an incremental $100 billion from TSMC for four more advanced manufacturing and packaging facilities in Arizona, taking its total planned US investment to $265 billion.

Amkor's CHIPS project page expects mass production in Peoria at the end of 2027; the plant is designed for about 14,500 wafers and 3.7 million units a month.

Chip companies headquartered in Arizona

Figures are from each company's latest 10-K. First Solar, also headquartered in the state and classed under semiconductors by the SEC, makes solar modules ($5.22 billion in 2025). Their Arizona footprints differ. onsemi leases about 200,000 square feet in Scottsdale for its headquarters and design and R&D work and reports about 22,600 regular full-time employees worldwide. Microchip's 720,000 square-foot Chandler campus holds its executive offices, wafer probe and an R&D center; its Fab 2 in Tempe was classified as held for sale on 31 March 2026, after a restructuring charge for its closure. Everspin, with 85 employees, runs an integrated magnetic fabrication line in Chandler.

Several of the state's biggest chip employers are run from elsewhere: Intel (Santa Clara) in Chandler, TSMC Arizona in north Phoenix, and NXP (Eindhoven), whose 10-K lists two front-end fabs in Chandler, an 8-inch CMOS fab and a 6-inch gallium nitride RF fab. The Greater Phoenix Economic Council also names ASM America among the region's headquarters and lists suppliers including Air Products, EMD Electronics and JX Nippon Mining & Metals. Motorola opened the region's first semiconductor plant in 1949, it notes.

Where to find more

Prospecting the Phoenix fab build-out

Illustrative example. The company, rates and results are fictional, to show the method.

Sonoran Gas Logistics (sonorangas.example) delivers and swaps specialty gas cylinders and bulk chemicals for fabs and their suppliers, with hazmat-trained drivers. It builds a target list from the public record:

• Fab and packaging sites with federal awards or 10-K disclosures: TSMC Arizona, Intel Chandler, Amkor Peoria, NXP's two Chandler fabs, Microchip Chandler and Everspin's Chandler line: 7 sites.
• Supplier plants GPEC names, plus suppliers moving in behind TSMC's added $100 billion: it estimates 15 more.
• It expects fabs to qualify it slowly (often a year) and suppliers faster, so it plans on 4 supplier accounts in year one at $300,000 each, $1.2 million.

At a fab, the buyer is a gases or facilities engineering team inside a supplier-qualification process; at a supplier plant it's usually the plant or EHS manager. Tracking which supplier is building where, and who runs each new plant, is the account research Bebop does for every name.

Subject: Specialty gas deliveries for [Company]'s [city] site

Hi [first name],

Most supplier plants starting up near the Phoenix fabs find that cylinder swaps and hazmat deliveries, not the gas itself, cause the first production delays.

We run scheduled cylinder exchange and bulk deliveries across the West Valley and Chandler with hazmat-certified drivers, and we report every delivery against your permits. Could I send our startup checklist for a site your size?

[Your name], Sonoran Gas Logistics

Next step: compare the Texas cluster in semiconductor companies in Austin, or see the whole state's market in businesses in Arizona.