The largest data center companies in the USA play a significant role in developing digital Infrastructure in the country. Data center companies like Digital Realty, Equinix, and 365 Data Centers play a major role in bolstering the U.S. data center market.

Apart from this US is planning to make big investments in data center industry. Recently, U.S. President Donald Trump proposed a plan to invest up to USD 500 billion in artificial intelligence (AI) infrastructure. The first data center under this project is currently under construction in Texas. Moreover, the USA is trying to compete with China to maintain its global dominance in the tech industry.

According to Blackridge Research's U.S. data center market report, the country is home to around 3,341 data centers as of 2025, which make up more than 28% of the global total. This post will examine the top data center companies in the United States.

Top 10 Largest Data Center Companies in United States

Here is a list of the top 10 data center-providing companies in the USA based on the number of data centers they have in the USA:

Digital Realty Trust Inc.

Digital Realty is one of the largest data center companies in the United States, with over 300 facilities spread across 25 countries. The company's primary goal is to assist its clients in experiencing exponential growth by offering first-rate data center solutions that are both adaptable and scalable.
 

Digital Realty is committed to offering data center solutions that are safe, dependable, and affordable by utilizing cutting-edge technology. Compliance with SOC 2, MAS, PCI-DSS, FISMA, NIST SP 800-53, and ISO 9001 and 27001 demonstrates the company's commitment to market standards. 
 

Recently, Digital Realty formed 

• A joint venture with Blackstone to develop data centers across the USA and Europe. 

• A joint venture with Realty Income to develop data centers in Northern Virginia.

The company has issued USD 6 billion green bonds to ensure sustainability and has rigorously worked toward its 68% global greenhouse gas emissions reduction target.
 

Moreover, Digital Realty has approximately 1.4 GW of renewable capacity, making it among the top ten in the National 100 largest renewable energy buyers.

In addition, 37% of the U.S. operating portfolio is Energy Star-certified.
 

On 14th October 2025, Digital Realty announced a collaboration with Lumen Technologies to deliver high capacity connectivity 400G speeds and enhance AI ready data cervices through rapid 20-days deployments.

On 16th September 2025, Digital Realty in collaboration with OQC and Nvidia launched first Quantum -AI data center in New York city. Recently, it has also partnered with Blackstone to create USD 7 billion hyperscale data centers.

Equinix Inc.

Equinix is one of the largest data center companies in the United States. The company headquartered in Redwood City, California, Equinix operates as a real estate investment trust (REIT). In May 2025, Equinix opened its first International Business Exchange (IBX) AI data center in Jakarta

Equinix and Amazon Web Services (AWS) collaborate to provide exceptional private cloud connectivity, enabling customers to quickly and efficiently connect hybrid workloads directly to the AWS Cloud through Equinix Fabric capabilities and AWS Direct Connect.

The company is unparalleled in terms of providing solutions that are both modular and scalable. They prioritize maintaining security by continuously monitoring and adhering to applicable industry requirements. 

Equinix's round-the-clock remote support helps ensure that business operations continue uninterrupted with minimal interruptions.

Furthermore, Equinix formed a USD 600 million joint venture with PGIM Real Estate to develop data centers in the USA.

On 21st October 2025, Equinix announced its "Distributed AI Infrastructure" covering over 270 data center across 77 markets globally. This initiative aims to increase flexibility and efficient AI training and inference.

On 19th September 2025, Equinix opened its first AI ready data center with an investment of USD 69 million in Chennai. This facility was inaugurated by Tamil Nadu Chief Minister MK Stalin which is designed to support high-performance AI workloads and is interconnected with global networks. Back in August 2025, Equinix announced multiple agreements to utilize 1 GW advanced nuclear power for its data centers including Oklo, Radiant clear and Bloom Energy.

Three Sixty Five Data Centers

365 Data Centers has 20 redundant interconnected data centers and over 100 carrier customers with over 275 carrier POPS (Point-of-Presence).

It also operates 145 POPS networks nationwide in various diverse cloud regions.
 

365 Data Centers operates its facility in many core locations such as Marlboro, New York City, Bridgewater, Philadelphia, Commack, Nashville, Tampa, Smyrna, Chicago, Aurora, etc., amongst which the Tampa campus was recently expanded, fueled by growing demand in Florida. 

The Tampa campus is one of Florida's most important network hubs, with 25 carriers on-site in the Tampa Internet Exchange.

It offers network-centric colocation, cloud, and managed services globally.

Such reliability and dependability in the global market made 365 Data Centers one of the leading providers in the USA.

In January 2025, InterServer announced a strategic partnership to expand capabilities in the New Jersey market. This significant move will strengthen its presence in multiple locations in New Jersey, such as Carlstadt and Bridgewater.
 

QTS Data Centers

QTS (Quality Technology Services) is a leading data center company in the United States, which was acquired by Blackstone in 2021 for $10 billion. They develop and operate data centers across North America and Europe.

QTS offers a range of services, including hybrid, wholesale, and hyperscale data center solutions, as well as managed services through its Software-Defined Data Center infrastructure. They deliver secure, compliant infrastructure solutions, robust connectivity, and premium customer service.

Furthermore, they are recognized for their data center design, which standardizes building architecture, layout, and critical equipment to ensure efficiency and scalability. Their cooling systems are designed for sustainability, saving over 48 million gallons of water annually.

QTS is also committed to renewable energy, with facilities like the Hillsboro, Oregon, campus running entirely on renewable energy.

Recently, they announced plans to build two new data centers in southern Dallas County, Texas, with a total construction cost of USD 650 million. These facilities, located at 303 Mason Road near Wilmer and Lancaster, include:

1. QTS DFW2 DC2: A 470,000 square foot, two-story data center with administrative space, with site work starting in May 2025 and completion expected by June 2026.

2. QTS DFW2 DC3: A 560,000 square foot, two-story data center, with site work beginning in November 2025 and completion by early 2027.

Additionally, a third data center on the same property, with 414,000 square feet and a cost of USD 288 million, is in the planning stages. QTS is also expanding in Irving, Texas, and Madison, Wisconsin. Some of their major data center projects include:

On 30th September 2025, QTS announced plans for a world-class data center in Cedar Rapids.

DataBank

DataBank provides enterprises, content providers, and technology developers with secure, compliant, and always available data center facilities.  It operates 100% renewable data centers, strategically located within 100 miles of more than 60% of the U.S. population, allowing for easy workload management.

It operates 73 data centers in the United States and 877 megawatts of critical  IT load.

Moreover, it is annually recertified for major compliance frameworks, including FedRAMP (U.S. govt program for standardized security and assessment), FISMA (The Federal Information Security Management Act ), SSAE18 (Framework for auditing internal controls), HIPAA (The Health Insurance Portability and Accountability Act), PCI-DSS (The Payment Card Industry Security Standard), and privacy shield - GDPR (General Data Protection Regulation).

Deloitte recognized DataBank in 2023 and 2024, and Inc. 5000 in 2024 as one of the fastest-growing private U.S. companies. DataBank’s footprint in edge colocation and infrastructure comprises 65+ High-Performance Computing (HPC)- ready data centers in more than 25 markets, 20 interconnection hubs, and on-ramps to an ecosystem of cloud providers.
 

On 17th October 2025, DataBank broke ground for a hyperscale data center at 85 acre site that will feature two facilities totalling 1.4 million square feet and 192 MW capacity in Culpeper, Virginia. Additionally, it has also announced to expand credit facility to USD 1.6 billion supporting construction of 100 MW new ca[pity across key US markets.

Vantage Data Centers

Vantage Data Centers, founded in 2010, is one of the leading data center providers in the USA. They provide hyperscale data center services worldwide. They have around 24 data centers in North America alone. They developed their first campuses in Santa Clara, California, and Quincy, Washington, establishing a strong presence in Silicon Valley. Furthermore, they offer wholesale data center solutions tailored to the needs of hyperscalers, cloud providers, and large enterprises

They were acquired by a consortium that includes Digital Bridge Holdings, LLC, a leading global communications infrastructure company; the Public Sector Pension Investment Board (PSP Investments); and TIAA Investments. In 2024, Digitalbridge and Silver Lake's joint venture invested approximately USD 6.4 billion in Vantage Data Centers. Recently Vantage data centers secured a USD 1.6 billion investment to scale its Asia-Pacific operations.

Vantage has also acquired many colocation providers and expanded their market presence Some of their acquisitions are given below:

• Canadian Data Center Market: Expanded into Canada with the acquisition of 4Degrees Colocation (Montreal and Quebec City) and developed a 146MW campus in Ashburn.

• European Data Center Market: Entered the European market with the acquisition of Etix Everywhere and Next Generation Data (NGD), adding campuses in Frankfurt, Berlin, Milan, Warsaw, Zurich, and the UK (Cardiff).

• Asia Pacific and African Data Center Market: Vantage entered the Asia Pacific and African Market, acquiring Agile Data Centers and PCCW DC, and developing an 80MW campus in Johannesburg, South Africa. The PCCW DC acquisition added 100MW of capacity in Hong Kong and Kuala Lumpur.

On 22nd October 2025, Vantage Data Centers announced the construction of new USD 272 million data center in Northside San Antonio spanning 214,526 square foot facility with construction expected to be completed by 15th June 2027.

On 10th September 2025, Vantage Data Centers, secured USD 1.6 billion investment to expand itself in Asia-Pacific region led by GIC (global institutional investor), and ADIA (Abu Dhabi Investment Authority). Recently, the company also revealed plans to invest over USD 25 billion for a new 1.4 GW data center project in Texas spanning 1,200 acres.

CyrusOne Inc.

CyrusOne provides cutting-edge data center solutions and has established more than 45 data centers across the United States and Europe. Recently, CyrusOne completed the construction of a data center facility in Madrid, Spain.

The data centers CyrusOne operates are protected against natural disasters and cyberattacks with the help of its top-tier engineers and IT professionals. The establishments are under constant surveillance by armed guards, and a security system involves multiple layers of protection.  Recently, CyrusOne started the construction of its first data center facility in Japan. 

Their facilities cater to challenging AI-driven applications and high-density deployments, offering the flexibility for swiftly changing technology demands. With tailored solutions for construction, shared spaces, and connectivity, they provide the infrastructure that adapts to their clients' evolving requirements. 

Top hyperscale firms and major global enterprises collaborate with CyrusOne to create robust data center infrastructure that fulfills their highest technical standards.
 

On 20th October 2025, CyrusOne announced its plans to develop a six building 600 MW data center campus in Talkington Township, Illinois.

Cologix

Cologix has 40+ data centers working in ideal locations in both the United States of America and Canada. The organization guarantees dependable services with an uptime guarantee of 99.99% because of its 24/7 monitoring system that includes multi-layered access control and a helpline available 24/7.  

Cologix offers cloud-first products and services that are designed to be scalable. Their state-of-the-art infrastructure, including backup power, redundant servers, and cooling solutions, guarantees that the company's needs will be serviced with peak efficiency and minimal latency. 
 

Cologix has recently acquired land in Ohio to build its new AI-ready data center facility with an investment plan of USD 7 billion. The first phase of development will begin in 2025.

In a recent press release in March 2025, Cologix announced its collaboration with Blackblaze to accelerate cloud storage delivery and robust infrastructure connectivity.
 

Flexential

Flexential Data Centers is a leading data center provider offering colocation, cloud, and connectivity services across over 40 data centers in 18 US Markets. Flexential was formed in 2017 through the merger of Peak 10 and ViaWest, which was executed by GI Partners.

Flexential offers a comprehensive suite of IT solutions, which includes:

• Data Center Colocation: Scalable, enterprise-grade solutions without upfront costs, supporting high-density workloads with liquid-ready cooling for AI and machine learning applications.

• Interconnection: Access to over 80 carriers and hyperscale cloud providers (e.g., AWS, Azure, Google Cloud), enabling reliable, secure connectivity and accelerated cloud on-ramp.

• Cloud Computing: Public, private, and hybrid cloud solutions that scale with business needs, complemented by a no-cost, no-obligation workshop.

• Data Protection: Disaster recovery and backup solutions, including an end-to-end disaster recovery program tailored to unique business requirements.

• AI Workloads: Designed to support AI, machine learning, and high-performance computing with advanced cooling systems.

Additionally, Flexential’s customer base includes prominent companies like NVIDIA, Applied Digital, CoreWeave, Metropolitan Software, and BRIDGE Healthcare Partners, who praise its reliability, high-density capacity, data security, and business continuity expertise. Recently, they acquired two leased data centers in Atlanta.

Iron Mountain Data Centers

Iron Mountain Data Centers is one of the emerging data center companies in USA. The company founded in 1951, is leading in global colocation data center market. They operate data centers that cover more than 5 million gross square feet of space. The company's total operational capacity exceeds 415 MW, with a potential capacity pipeline of nearly 1.3 GW of upcoming data center projects.

Furthermore, Iron Mountain's most distinctive feature is its underground data center facilities, particularly the Western Pennsylvania Data Center facility located 220 feet underground in a former limestone mine. The Underground facility offers unparalleled security and natural cooling advantages.

The company recently acquired Web Werks in India private limited one of the largest data center companies in India for approximately USD 1.4 billion. They have also conducted Land acquisition in Virginia for USD 113.5 million to develop 150 MW of additional capacity. They have also formed a partnership with Ooredoo for a minority stake in MENA Digital Hub, expanding into Middle East data center markets.

Planned Developments

1. Richmond, Virginia campus

2. Amsterdam expansion

3. Chennai data center

Other Notable Data Center Companies in US

1. EdgeConneX

2. Centersquare

3. CoreSite

4. Switch

5. Aligned Data Centers

6. TierPoint

How Many Data Centers Are There in the US?

There are over 11,800 operating data centers globally, with the United States accounting for more than 28% of the total. According to the findings by Blackridge Research, the United States had 3,341 data centers in 2025, which is ten times greater than China and most European countries. These data centers differ in size, form, and function to meet the needs of many industries, including technology, banking, and healthcare.
 

Virginia has evolved as a global data center powerhouse, achieving "The Data Center Capital of the World." It is home to around 537 data centers alone. Virginia's favorable economic climate, robust infrastructure, and advantageous location on the United States East Coast have encouraged large technology and data center businesses to establish operations there.

The largest data center companies in the United States have several locations distributed nationwide. These data centers are often controlled and operated by large technology firms such as Google, Amazon, Microsoft, and Meta, as well as specialized data center companies such as Equinix, Digital Realty, and CyrusOne, which offer colocation and cloud services to various companies.

Where Are The Major Data Center Markets in the USA Located?

Northern Virginia

Northern Virginia is one of North America's largest data center markets, with a market size of over 3,400 MW (2023)  and 1,400 MW of projected supply growth between 2024 and 2027.

Dallas/ Fort Worth

Dallas offers lower power costs and strong connectivity; it also provides tax incentives and plentiful land, making it an attractive data centre investment market. 

As of 2024, it has an estimated market size of approximately 1,128 MW, and its projected supply growth is more than 320 MW.

Phoenix

Phoenix is the top-ranked data center market. It offers chief power and a business-supporting environment with ample land for development. It also provides excellent fibre connectivity, making it attractive for hyperskillers to rapidly absorb space for development. 

It had a market size of 1,100 MW in 2023, and the projected supply growth was more than 500 MW between 2024 and 2027

Silicon Valley

Silicon Valley in Northern California is a key data center market. Many tech companies and data center providers choose Silicon Valley as a colocation data center.

Chicago

Chicago is another attractive market for hyperscalers like Microsoft, Google, Meta, and other tech giants. It had a market size of almost 1,000 MW and projected supply growth of 300 MW from 2024 to 2027

The Rise of the USA as a Data Center Giant

The United States has long been home to data centers. The first building in the world that could be called a "data center" was constructed in the United States in 1946. 

The United States of America has seen a sudden and dramatic increase in the number of data centers that have been established and expanded. This ascent is the result of several distinct factors: 

Strategic Location

The United States is desirable for data center operators due to its strategic positioning to serve local and international markets.

Access to Capital

A large amount of funding is available for building and expanding data centers since the financial markets in the United States are deep and liquid.

Skilled Workforce

The United States boasts a substantial reservoir of exceptionally proficient IT specialists, guaranteeing the accessibility of knowledge for managing and repairing data centers.

Conclusion

The above-mentioned companies are some of the top players in the US Data center market. These companies have been at the forefront of modern technology, high security, and reliability. As the need for data storage, processing, and communication continues to rise, the data center business in the United States is expected to experience sustained expansion. These data centers will contribute to America's economic growth and technological advancements. 

The United States of America is poised to continue its dominance in the global data center industry thanks to its robust infrastructure, supportive regulatory climate, and trained workforce. 

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