The numbers are hard to ignore. Across the United States, 59 projects totaling more than $624 billion in capital investment are underway, each one a billion-dollar-plus commitment to domestic manufacturing, technology, and advanced industry. And no state is capturing more of that investment than Arizona, which leads the nation with $190.5 billion in mega-project dollars.
This isn’t a single headline. It’s a structural shift.
A National Trend with a Local Epicenter
The broader U.S. picture reflects a deliberate push to rebuild domestic industrial capacity across four key sectors: semiconductors (14 projects), batteries (12 projects), automotive (8 projects), and pharmaceuticals (7 projects). Together, these industries represent the infrastructure of the next decade, the supply chains, the energy systems, and the advanced manufacturing that increasingly underpins both economic and national security.
The roster of companies committing capital spans nearly every major industrial sector. In Arizona alone, LG Energy Solution is ramping battery cell production at its Queen Creek facility targeting mass production in 2026, Intel is expanding its Chandler campus with two new state-of-the-art fabrication plants representing a $20 billion investment, and Amkor Technology, headquartered in Tempe, has grown its Peoria semiconductor packaging plant from a $2 billion project to a $7 billion commitment.
Arizona, and the Greater Phoenix region specifically, sits squarely at the center of that national push. The state’s $190.5 billion figure isn’t driven by a collection of mid-size deals, it’s anchored by transformational, generational investments that are physically reshaping the landscape north of Phoenix.
TSMC: The Anchor Investment Keeps Growing
Taiwan Semiconductor Manufacturing Company’s north Phoenix fab campus was already one of the most significant economic development stories in U.S. history. It continues to grow. TSMC’s board recently approved a $20 billion capital injection into its Arizona subsidiary as part of the company’s overall $165 billion investment plan for the site. That figure includes six chip fabrication facilities, two advanced packaging plants, and a dedicated R&D center, a construction timeline that stretches well beyond 2030.
The company has already topped out construction on its third fab, broken ground on its fourth, and begun initial work on its first advanced packaging facility, slated to open by 2029. Approximately 9,000 construction workers are currently on-site. When the second fab enters high-volume manufacturing, expected in the second half of 2027, it will mark another milestone in a project that is already generating real economic output. TSMC’s first Arizona fab reportedly posted $514 million in profit during its first full year of mass production.
Challenges remain. TSMC has cited water supply, stable power, and visa access for overseas hires as ongoing concerns. The company is actively addressing each: an industrial water reclamation plant designed to recycle up to 90% of wastewater is already under construction, Arizona Public Service is building a new substation to support expanded power needs, and a new technician training program with Arizona State University has launched to build local talent pipelines.
Amkor Technology: North America’s Top Economic Deal
Reinforcing the region’s position as a semiconductor hub is Amkor Technology’s advanced packaging and testing facility in Peoria, which was ranked as the top economic development deal in North America last year by Site Selection Magazine. What began as a $2 billion project has grown to a $7 billion investment, expected to create approximately 3,000 jobs when the first phase completes in 2028.
Amkor’s campus is being built within Peoria’s Innovation Core (PIC), a 7,300-acre mixed-use technology and manufacturing district designed specifically to accommodate the kind of large-scale industrial development the region is attracting. Notably, the PIC was positioned as a strategic supply chain partner to TSMC’s campus, the two sites sit just a short drive apart, underscoring the intentional clustering of semiconductor-related investment in the West Valley.
What This Means for the Market
Investment at this scale has compounding effects. The construction workforce alone, tens of thousands of jobs across active sites, creates immediate demand for housing, services, and infrastructure. The permanent positions that follow, in advanced manufacturing and technology, represent a long-term shift in the region’s employment base and wage profile.
For commercial real estate, the implications of these mega-projects are already visible in industrial demand, workforce housing pressure, and the acceleration of infrastructure development in previously underbuilt corridors. The pipeline of supplier and support businesses expected to follow these anchor tenants will extend the impact further.
Phoenix has long been a growth market. What is taking shape now, however, is something with a longer time horizon and deeper structural roots. It is a regional economy being repositioned around the industries that will define the decades ahead.
Data sourced from Engineered Vision’s U.S. Mega Projects tracker (map.engineered-vision.com), the Phoenix Business Journal, and Site Selection Magazine.