Hardware and Infrastructure Providers Surge to $1 Trillion Valuation Driven by AI Data Center Boom

A dramatic expansion in global artificial intelligence infrastructure has created a new class of megacap technology suppliers, propelling six former hardware and specialized software providers to an aggregate valuation of nearly $1 trillion. Driven by hyper-scale capital expenditure, which has surged from $35 billion in 2023 to an estimated $650 billion annual run rate in 2026, companies specializing in power generation, advanced cooling, data storage, and AI-driven ad tech have achieved annualized stock gains exceeding 100 percent over the past three years.

Between mid-2023 and July 2026, the collective market capitalization of this group—comprising GE Vernova, Vertiv, Seagate Technology, Western Digital, Sandisk, and AppLovin—grew from $90 billion to approximately $1 trillion. This $900 billion expansion represented roughly 3.5 percent of the total market capitalization growth across the S&P 500 during the same period. The group’s annualized gains more than quadrupled the average performance of the “Magnificent Seven” mega-cap technology equities.

The surge reflects severe physical constraints in building next-generation computing facilities. Modern AI data centers require unprecedented electrical capacity, complex thermal management systems to dissipate extreme heat from graphics processing units, and high-density memory storage capable of processing massive large language models.

Power demands have benefited power equipment manufacturer GE Vernova, which completed its spinoff from General Electric in April 2024 under a restructuring initiated by former CEO Larry Culp and led by chief executive Scott Strazik. To bypass utility grid delays, hyperscalers and co-location providers are purchasing heavy-duty and aeroderivative natural gas turbines directly for on-site power generation. Individual heavy-duty turbines measuring 30 feet in length carry price tags near $250 million, with major data center campuses deploying up to eight large units or 60 smaller aeroderivative models.

GE Vernova turbines currently supply electricity to major installations, including xAI’s Stargate facility in Texas and OpenAI‘s Colossus One campus in Tennessee. In another transaction, an investment vehicle combining Chevron and American Engine No. 1 purchased seven large turbines to lease to Microsoft for a Texas data center complex capable of generating energy equivalent to the consumption of three million homes. GE Vernova projects that AI data center orders will account for 25 percent of its power segment orders in 2026, up from 10 percent of $59 billion in total orders in 2025. For 2026, the company guided revenues to $46 billion, representing a 21 percent year-over-year increase, alongside $12 billion in projected free cash flow.

Thermal engineering provider Vertiv has similarly seen its market value increase from $10 billion to $114 billion. Originally a division of Emerson Electric, Vertiv was acquired in 2020 by former Honeywell CEO Dave Cote and Goldman Sachs for $4 billion. Under Cote’s direction as executive chairman, Vertiv collaborated with Nvidia to engineer specialized direct-to-chip liquid cooling systems. By circulating a water and glycol liquid mixture across processors, the technology dissipates thermal output far more effectively than traditional air cooling, preventing thermal throttling in high-density server racks.

Vertiv reported 2025 sales of $10.2 billion, up 31 percent year-over-year, while operating profit expanded six-fold to $2.1 billion. The company supplies both direct cloud providers like Amazon and Alphabet and wholesale facility operators such as Equinix.

High-density storage suppliers have experienced a parallel surge due to massive training datasets and active memory requirements. Seagate Technology and Western Digital, which together command approximately 80 percent of the global hard disk drive market, transitioned from severe post-pandemic supply gluts to capacity shortages. Western Digital’s market capitalization expanded from $10 billion to $168 billion as hard drive prices surged by up to 50 percent since early 2025. Western Digital has sold out its hard drive production through 2026 and is securing long-term supply agreements extending into 2028, driving gross margins to 51 percent in its March 2026 quarter and lifting four-quarter profits to $6.4 billion following a $1.7 billion loss in fiscal 2023.

Seagate, operating operationally from Fremont, California, increased its valuation from $14 billion to $181 billion behind its Mozaic platform using Heat-Assisted Magnetic Recording (HAMR). HAMR utilizes precision lasers to heat disk media during write cycles, enabling higher data density per square inch. In its third quarter ending April 3, 2026, Seagate shipped 199 exabytes of storage capacity to data centers—a 39 percent year-over-year increase—while quarterly revenue rose 44 percent and gross margin expanded 11 percentage points to 47 percent.

In February 2025, Western Digital completed the corporate spinoff of its solid-state drive unit into Sandisk. Sandisk focuses on NAND flash storage designed for high-speed “hot” data retrieval required during active AI model inference workloads. Sandisk is collaborating with South Korea’s SK Hynix to launch High Bandwidth Flash (HBF) technology in late 2026. Over the nine-month period ending April 3, 2026, Sandisk recorded $11.3 billion in revenue—a 110 percent increase compared to the prior period—and generated $5.4 billion in net income, lifting its market cap from $8 billion at the time of its separation to $235 billion by mid-2026.

Moving beyond hardware infrastructure, digital advertising platform AppLovin leveraged AI computing power to scale its commercial engine. Founded in 2012 by chief executive Adam Foroughi, AppLovin expanded its market capitalization from $10 billion to $143 billion following the 2023 rollout of its Axon algorithmic framework. Axon utilizes high-performance GPU clusters to process real-time consumer data and automate ad auctions for mobile application developers. In 2025, AppLovin reported revenue of $5.5 billion, a 70 percent increase, and net income of $3.3 billion, a 111 percent expansion.

The six companies currently trade at forward price-to-earnings ratios ranging from 29 for GE Vernova to 88 for Seagate Technology, reflecting market expectations tied directly to sustained hyperscaler spending projected to reach $1.0 trillion to $1.1 trillion annually by 2027.