TL;DR
The domestic manufacturing boom is transitioning from physical shell construction to highly complex internal systems, with the financial windfall shifting to late-stage specialty contractors, power infrastructure giants, and advanced packaging providers. High-margin mechanical installations, grid-to-chip power systems, and localized back-end semiconductor packaging are capturing record-breaking cash flows and multi-year backlogs. However, the next phase of this transition introduces severe near-term capital intensity and underutilization friction that will test investor patience.
Specialty Contractors and Automation Providers Capture the Core Margins
High-margin mechanical installations and software-driven control systems are generating unprecedented profitability as newly constructed industrial shells are fitted with complex operational systems.
"This is the first time that our quarterly revenue has exceeded $3 billion. We earned $12.53 per share this quarter, which is an increase of 92% compared to a year ago. Quarterly gross profit percentage in our mechanical segment jumped to 25.6% this year, compared to 22.9% last year." — [Specialty Contractors Reap High-Margin Rewards of Reshoring and Data Center Capex
] (via Comfort Systems USA tops Q2 2026 estimates, stock slips)
"We delivered a strong quarter with double-digit year-over-year growth in sales and earnings exceeding our expectations. We continue to see strong demand across semiconductor, data center, e-commerce, and warehouse automation." — [Rockwell Automation Proves Reshoring and PLC-Led Data Center Demand in Q3 2026
] (via Rockwell Automation, Inc. (ROK) Q3 FY2026 Earnings Call Transcript)
This shift demonstrates that the primary financial beneficiaries of reshoring are no longer civil engineering firms, but specialty contractors and automation providers that assemble sophisticated modular systems [Specialty Contractors Reap High-Margin Rewards of Reshoring and Data Center Capex]. By pre-fabricating modular sub-systems in controlled factory environments, companies like Comfort Systems USA are reducing on-site labor risks and capturing premium pricing, while Rockwell Automation is securing exceptional 34.8% operating margins in its Software & Control segment [Rockwell Automation Proves Reshoring and PLC-Led Data Center Demand in Q3 2026
, Specialty Contractors Reap High-Margin Rewards of Reshoring and Data Center Capex
].
What to watch: Whether Comfort Systems USA can successfully expand its modular building capacity to 5 million square feet by late summer 2027 to satisfy relentless customer demand [Specialty Contractors Reap High-Margin Rewards of Reshoring and Data Center Capex].
Power Infrastructure and Grid Modernization Lock in Decades of Demand
The staggering power requirements of onshored megaprojects and AI data centers are creating a multi-decade backlog for grid infrastructure, thermal management, and utility-scale control systems.
"Total U.S. data center backlog has grown to 307 gigawatts or 15 years of backlog at 2025 build rates, up from 12 years in our last update. Only roughly 20% of this backlog converts near term. The majority will translate to 2028 and beyond deliveries, a very nice tailwind for Eaton for years to come." — [Eaton Rides Massive Wave of Data Center and Megaproject Orders in Q2 2026
] (via Eaton (ETN) Q2 2026 Earnings Call Transcript)
"We are seeing a continuation of the unprecedented investment in power generation, with orders in our Ovation business up 31%." — [Emerson Electric Capitalizes on Grid Modernization and Growth Verticals in Q3 2026
] (via Emerson Electric (EMR) Q3 2026 Earnings Call Transcript)
These backlogs show that power management is the ultimate gatekeeper of domestic high-tech manufacturing. Eaton's introduction of the modular "Eaton Beam Rubin DSX" platform and Emerson's $3 billion power project funnel prove that companies addressing grid bottlenecks and utility-scale power generation are experiencing a secular, multi-year capital cycle [Eaton Rides Massive Wave of Data Center and Megaproject Orders in Q2 2026, Emerson Electric Capitalizes on Grid Modernization and Growth Verticals in Q3 2026
].
What to watch: Whether Eaton's $5.1 billion Mobility merger with Dana closes on schedule in the first quarter of 2027, allowing the company to shed cyclical automotive drag and operate a premium-margin portfolio [Eaton Rides Massive Wave of Data Center and Megaproject Orders in Q2 2026].
Advanced Packaging Emerges as the Critical Bottleneck for Semiconductor Reshoring
Domestic semiconductor self-sufficiency is shifting its focus to back-end advanced packaging, though building out this infrastructure introduces near-term financial friction.
"First, we announced a 10-year advanced packaging agreement with TSMC. The agreement establishes a framework to expand advanced packaging and test capacity while strengthening the U.S. semiconductor supply chain." — [US Advanced Packaging Ecosystem Emerges as Critical Reshoring Node with TSMC-Amkor Alliance
] (via Earnings call transcript: Amkor tops Q2 2026 estimates as stock slips)
"So that's part of the bridge that you're trying to understand is why would '28 match '26 because there will be ramping underutilized Arizona manufacturing in both gross margin and operating margin in 2028." — [US Advanced Packaging Ecosystem Emerges as Critical Reshoring Node with TSMC-Amkor Alliance
Amkor's partnership with TSMC proves that domestic semiconductor reshoring is transitioning from isolated "press release" megaprojects into an integrated ecosystem [US Advanced Packaging Ecosystem Emerges as Critical Reshoring Node with TSMC-Amkor Alliance]. However, establishing this domestic node requires massive capital intensity, with Amkor maintaining a $2.5 billion to $3 billion capex plan that will weigh heavily on gross and operating margins through 2028 due to ramping underutilization pressures [US Advanced Packaging Ecosystem Emerges as Critical Reshoring Node with TSMC-Amkor Alliance
].
What to watch: How severely the ramping underutilization and high depreciation costs from the Peoria, Arizona campus drag down Amkor's consolidated operating margins in 2028 [US Advanced Packaging Ecosystem Emerges as Critical Reshoring Node with TSMC-Amkor Alliance].
What surprised us
- Eaton's Astronomical Backlog: Eaton’s U.S. data center backlog has ballooned to 307 gigawatts—equivalent to 15 years of backlog at current build rates, demonstrating the massive, long-cycle tailwind for grid infrastructure [Eaton Rides Massive Wave of Data Center and Megaproject Orders in Q2 2026
- Rockwell's High-Margin PLC Loop: Rockwell Automation's Software & Control segment generated a spectacular 34.8% operating margin, proving that the digital brain of onshored factories (programmable logic controllers and control software) is far more profitable than the physical construction [Rockwell Automation Proves Reshoring and PLC-Led Data Center Demand in Q3 2026
- Amkor's Multi-Year Margin Headwind: Despite securing a landmark 10-year TSMC deal, Amkor expects its 2028 operating margins to only match 2026 levels because the ramping underutilization of its Arizona packaging facility will act as a major drag on profitability [US Advanced Packaging Ecosystem Emerges as Critical Reshoring Node with TSMC-Amkor Alliance
- The Length of Emerson's Lead Times: Lead times for Emerson's Ovation power-generation control systems now stretch all the way into the fourth quarter of 2027 and reach 2028, highlighting severe supply-demand imbalances in utility-scale equipment [Emerson Electric Capitalizes on Grid Modernization and Growth Verticals in Q3 2026