TOP 10 Biggest Telecom Companies in the US
The U.S. telecom industry is dominated by major players like T-Mobile US, AT&T, Verizon, Comcast, and several others that hold massive market capitalizations. These companies are not only responsible for providing wireless connectivity, internet, and cable services to millions of customers, but they also play a critical role in shaping digital transformation across the nation. As the demand for faster, more reliable networks grows, telecom giants continue to invest heavily in 5G technology, fiber infrastructure, and advanced cloud services to stay ahead of the competition and meet customer expectations.
Beyond traditional telecom services, these companies are expanding into security and digital infrastructure management, where a video surveillance solution for telecom companies has become increasingly important. With vast data centers, retail stores, and critical infrastructure to protect, telecom leaders integrate advanced surveillance and monitoring technologies to enhance security and operational efficiency. By combining connectivity expertise with smart surveillance systems, the biggest telecom companies ensure both service reliability and the safety of their assets in an increasingly interconnected world.
T-Mobile US
Founded: 1994 (as VoiceStream Wireless)
CEO/President: Mike Sievert
Founder: John W. Stanton
Owner: Deutsche Telekom (51.4%)
Headquarters: Bellevue, Washington, US
Number of employees: 70,000 (2024)
Website: t-mobile.com
Market capitalization: 272.04 B (Sep 2025)
T-Mobile US is one of the largest wireless carriers in the country and is widely recognized for its expansive 5G network. The company operates under the T-Mobile and Metro by T-Mobile brands, serving millions of customers nationwide with mobile, home internet, and fiber services. Known for its disruptive approach to telecom, T-Mobile has invested heavily in building out Ultra-Capacity 5G, which now covers the majority of Americans and consistently ranks at the top for speed, reliability, and video streaming quality. Beyond wireless, the company is also expanding into broadband and digital services, aiming to make high-speed connectivity accessible to more households and businesses.
Alongside its core telecom services, T-Mobile offers innovative business solutions, including smart video analytics for video surveillance. This IoT-driven platform combines cameras, sensors, and artificial intelligence to help organizations monitor facilities more effectively. It can detect intrusions, identify unusual movement, and provide alerts in real time, enhancing both security and operational efficiency. With these tools, T-Mobile positions itself not only as a leader in mobile connectivity but also as a provider of intelligent technology solutions for modern businesses.
AT&T
Founded: 1983 (as Southwestern Bell Corporation (SBC))
CEO: John Stankey
Chairman: William Kennard
Founders: Alexander Graham Bell, Thomas Watson, Gardiner Greene Hubbard
Headquarters: Whitacre Tower, Dallas, Texas, US
Number of employees: 140,990 (2024)
Website: att.com
Market capitalization: 211.44 B (Sep 2025)
AT&T is a major U.S. telecom operator with deep roots in using fiber and wireless technologies to build what it describes as a “fast, reliable, and secure” network. The company provides both consumer and business offerings, including multi-gigabit fiber broadband that reaches tens of millions of homes and businesses, plus nationwide 5G coverage. AT&T also operates FirstNet, a public safety network for emergency responders, adding an extra dimension of social purpose and critical infrastructure to its business.
On video surveillance and related video intelligence, AT&T has been pushing forward solutions in its Internet of Things (IoT) and business product lines. For example, its “IoT Video Intelligence” service offers video over cellular with robust analytics (object detection, perimeter or intrusion alerts, loitering detection, etc.), designed to reduce storage and bandwidth costs while maintaining high security and reliability. Another relevant service is “Wireless CCTV” via AT&T Global SIMs for mobile surveillance units — useful for law enforcement, temporary‐security setups, construction sites, or other situations needing mobile monitoring. These efforts show AT&T not only sees itself as a connectivity provider, but also as a partner for enterprises and public safety when it comes to video-based security.
Verizon
Founded: 1983 (as Bell Atlantic)
CEO/Chairman: Hans Vestberg
Headquarters: 1095 Avenue of the Americas, New York City, New York, US
Number of employees: 99,600 (2024)
Website: verizon.com
Market capitalization: 185.39 B (Sep 2025)
Verizon is a leading U.S. telecommunications company with a wide reach across wireless, fiber, 5G, and business services. According to its most recent fact sheet, Verizon generated roughly $134.8 billion in revenue in 2024 and has over 146 million wireless retail connections. Its network covers over 99% of the U.S. population with 4G LTE, and a large portion of its sites are upgraded with C-Band spectrum for better 5G performance. Beyond wireless, Verizon offers fiber internet (Fios), broadband, cloud and enterprise connectivity solutions, aiming to serve businesses, public sector agencies, and consumers with high reliability and extensive coverage.
On video surveillance, Verizon has been investing in “Intelligent Video” and “Smart Surveillance” services through its business/IoT portfolio. Its Intelligent Video solution bundles video capture hardware, wireless or wireline connectivity, analytics, storage (both edge and cloud), and alerting. The system can detect abnormal events, monitor perimeter or zones of interest, archive relevant video, and enable quicker response. It also leverages Verizon’s reliable network to support remote monitoring, situational awareness, and public safety use cases.
Comcast
Founded: 1963 (as American Cable Systems)
CEO/Chairman: Brian L. Roberts
President: Michael J. Cavanagh
Founder: Ralph J. Roberts
Headquarters: Comcast Center, Philadelphia, Pennsylvania, US
Number of employees: 182,000 (2024)
Website: corporate.comcast.com
Market capitalization: 122.06 B (Sep 2025)
Comcast is a major U.S. communications and media company that delivers broadband internet, cable TV, voice services, and wireless connectivity under the Xfinity brand, and also operates the large cable infrastructure and network assets that connect homes and businesses across much of the country. According to its “Our Network” overview, Comcast’s broadband network passes more than 64 million homes and businesses, and its service footprint includes over 23 million public WiFi hotspots. The company has invested heavily in its infrastructure — fiber expansion, fiber routes, improved gateways, gigabit-speed plans — and in recent years introduced tools using AI and machine learning (for example in the “Octave” platform) to monitor, optimize, and enhance network performance.
In the video surveillance and monitoring space, Comcast offers business-oriented solutions under its Comcast Business / SmartOffice and Comcast Smart Solutions divisions. For small and medium-sized businesses, SmartOffice allows installation of HD cameras (indoor/outdoor), cloud storage, 24/7 video access via mobile or desktop, motion detection, and features like a Motion Insights dashboard to view activity patterns over time. More recently, Comcast Smart Solutions has formed partnerships with companies like Eagle Eye Networks and C2RO to provide AI-powered video analytics and cloud-based video management systems, enabling clients to integrate or upgrade existing camera infrastructures, gain analytic insights, and improve safety, security, and operational efficiency.
American Tower
Founded: 1995
CEO/President: Steven Vondran
Headquarters: Boston, Massachusetts, US
Number of employees: 4,691 (2024)
Website: americantower.com
Market capitalization: 91.35 B (Sep 2025)
American Tower Corporation is a major provider of communications infrastructure, especially known for owning, operating, and developing wireless and broadcast tower sites around the world. In the U.S., it maintains around 42,000 tower sites, plus dozens of data centers and rooftop, in-building, and distributed antenna system (DAS) assets to support wireless network deployment. Its business model centers on leasing or co-hosting space on its communications real estate to mobile network operators, internet providers, broadcasters, government agencies, and other enterprises that need reliable connectivity. The company also makes moves into edge computing, improving interconnectivity via its data centers, enabling lower latency and supporting evolving 5G and hybrid network demands.
Regarding video surveillance or related monitoring solutions, there is no clear information on the American Tower website that suggests they offer direct video surveillance services (such as camera systems, video analytics, or security monitoring) as part of their product offerings. Their public materials focus on infrastructure: tower sites, colocation, data centers, DAS, Wi-Fi, private networks, and edge computing. If anything, their work enables video services by providing the backbone that supports wireless connectivity, bandwidth, and infrastructure that video surveillance systems, streaming video, and other real-time visual data services rely upon — but not the surveillance systems themselves.
Crown Castle
Founded: 1980
CEO/President: Chris Hillabrant
Founders: Robert and Barbara Crown
Headquarters: Houston, Texas, US
Number of employees: 3,900 (2025)
Website: crowncastle.com
Market capitalization: 41.54 B (Sep 2025)
Crown Castle is a U.S. communications-infrastructure company that owns and operates a broad network of cell towers, small cells, fiber, rooftops, and related assets. The company serves wireless carriers, municipalities, real estate firms, and other businesses by offering infrastructure solutions rather than consumer wireless service itself. Its footprint includes over 40,000 towers, roughly 90,000 route miles of fiber, and about 120,000 small cell nodes on air or under contract. Crown Castle also offers colocation services, operating more than 100 data-centers and hundreds of Points of Presence (PoPs) and Central Offices (COs), which support low-latency, high-bandwidth connectivity needs.
As for video surveillance, Crown Castle does not appear to offer a dedicated “video surveillance system” product (cameras, video analytics tied to own video‐security offering) as part of its standard infrastructure portfolio. However, their infrastructure solutions — especially fiber, towers, small cells, and network connectivity — underlie many of the components needed for video transport and real-time monitoring applications. In particular, their “Video Transport” fiber solution is positioned for high-capacity video backhaul or transport purposes, which supports the movement of large volumes of video data across networks. So while Crown Castle mainly offers the backbone and connectivity rather than end-user surveillance services, its infrastructure is a key enabler for video and monitoring applications.
Charter Communications
Founded: 1980
Chairman: Eric Zinterhofer
CEO/President: Chris Winfrey
Founder: Charles H. Leonard
Headquarters: Houston, Texas, US
Number of employees: 94,500 (2024)
Website: corporate.charter.com
Market capitalization: 35.98 B (Sep 2025)
Charter Communications, operating under the Spectrum brand, is a major broadband and cable operator in the United States, offering Internet, TV, Mobile, and Voice services. It serves more than 57 million homes and businesses across 41 states. As of mid-2025, it has about 29.9 million broadband customers, 12.6 million video customers, 10.9 million mobile lines, and 6.4 million voice customers. Spectrum also reaches nearly half a billion IP-devices on its network.
When it comes to video services and cloud storage, Charter recently introduced Cloud DVR Plus for its Spectrum TV customers, which lets viewers record shows and store them in the cloud instead of — or in addition to — local DVR devices. However, the company has had trouble scaling this service: technical problems ensued after higher than expected demand from users, leading to requests that customers delete older recordings to restore performance. There’s no strong public information that Charter is deeply involved in video surveillance (security cameras, analytics, etc.) beyond its entertainment video products and cloud recording offerings.
EchoStar
Founded: 1980
Founder/Chairman: Charles Ergen
CEO: Hamid Akhavan
Headquarters: Englewood, Colorado, US
Number of employees: 13,700 (2024)
Website: echostar.com
Market capitalization: 21.55 B (Sep 2025)
EchoStar Corporation (Nasdaq: SATS) is a global communications company that combines satellite technology, broadband, mobile services, and video entertainment under brands like Hughes, DISH TV, Boost Mobile, Sling TV, and EchoStar Mobile. The company operates a large fleet of geosynchronous satellites (using Ku-, Ka-, and S-band transponders) that serve both consumer and government/enterprise customers, including remote broadband and content delivery. EchoStar’s mission emphasizes innovation in satellite infrastructure, networking services, and content delivery, pushing to serve communities without reliable terrestrial connectivity.
As for video surveillance or cloud video storage, EchoStar does not appear to have a major, broadly-promoted product in that space in recent materials. One relevant earlier offering was SAGE™ by Hughes, launched some years ago, which provided a smart-home system that included video and sensor-based security and home control features. More current offerings emphasize satellite IoT services, non-terrestrial network (NTN) development, and connectivity in remote locations — these may support video or monitoring applications indirectly (for example via IoT sensors or real-time data from remote cameras), but there is no clear indication from the corporate site that EchoStar is selling its own, large-scale video surveillance/analytics or cloud-video-storage product as of now.
SBA Communications
Founded: 1989
CEO/President: Brendan T. Cavanagh
Founder: Steven E. Bernstein
Headquarters: Boca Raton, Florida, US
Number of employees: 1,720 (2024)
Website: sbasite.com
Market capitalization: 21.47 B (Sep 2025)
SBA Communications Corporation is one of the United States’ foremost providers of wireless infrastructure, specializing in owning, operating, and building the physical frameworks that enable mobile connectivity. The company’s portfolio includes towers, rooftops, buildings, small cells, distributed antenna systems (DAS), poles, and associated communications infrastructure. It earns revenue primarily through site leasing, where wireless carriers lease antenna space on its structures, and site development, helping providers with locating towers, managing zoning, permitting, construction, and maintenance. SBA’s presence stretches beyond the U.S., with operations in the Americas and Africa.
Ciena
Founded: 1992 (as HydraLite)
Chairman: Patrick Nettles
CEO/President: Gary Smith
Founders: David Huber, Kevin Kimberlin
Headquarters: Hanover, Maryland, US
Number of employees: 8,657 (2024)
Website: ciena.com
Market capitalization: 18.52 B (Sep 2025)
Ciena Corporation is a leading U.S. technology company specializing in high-speed networking systems, services, and automation software. Headquartered in Hanover, Maryland, Ciena designs and manufactures optical and routing platforms that enable scalable, low-latency connectivity for service providers, enterprises, and cloud operators. Their solutions support the growing demand for data transmission and network management, empowering customers to thrive in the AI era.
While Ciena does not offer direct video surveillance or cloud storage services, their infrastructure solutions play a crucial role in supporting these applications. For instance, Ciena's Adaptive Network framework facilitates the deployment of Edge Cloud architectures, which are essential for latency-sensitive applications like video surveillance. Additionally, their high-capacity networking solutions are utilized in intelligent transportation systems, providing the necessary bandwidth to support the growing number of sensors and video cameras.
