5 Companies Owned by Comcast

Comcast: An Overview

Comcast Corporation (CMCSA) is a global media and technology conglomerate. The company was founded in 1963 when Ralph Roberts purchased American Cable Systems, a small subscriber cable system in Tupelo, Mississippi.

The cable company was subsequently incorporated under the name Comcast, had its first public stock offering in 1972, and has since grown into a world leader in media, entertainment, and technology.

Five major companies owned by Comcast are AT&T Broadband, NBCUniversal, Sky, Dreamworks Animation, and XUMO.

Today, Comcast is led by CEO Brian Roberts, the founder’s son. In 2024, the company posted an annual net income attributable to Comcast of $16.2 billion on revenue of $123.7 billion.

Understanding Comcast’s Acquisition Strategy

Comcast’s growth from a small cable operator into a multibillion-dollar media and tech giant has been driven to a large extent by strategic acquisitions, both horizontal and vertical.

Horizontal acquisitions have helped the company become a leading provider of high-speed internet, video, voice, wireless, and security and automation systems. Part of this expansion is attributable to Comcast’s in-house Xfinity brand.

Other acquisitions have broadened and strengthened the areas of media content that the company is engaged in, such as cable television, broadcast television stations, filmed entertainment, and more.

As Comcast explored ways to adapt to the increasing prevalence of streaming services, it considered the acquisition of streaming device giant Roku Inc. (ROKU), in 2021.

Comcast redirected its focus to launching its own streaming services. In 2025, it offers Xfinity Stream, Peacock Premium, and Now TV, as well as associated bundles and options.

The company has not always succeeded at snapping up every company that it wanted. In an attempt to acquire 21st Century Fox in 2018, Comcast lost out to Walt Disney Co. (DIS). Comcast tried unsuccessfully to take over Disney in 2004.

1. AT&T Broadband

• Type of Business: Broadband Services Provider
• Acquisition Price: $47.5 billion
• Acquisition Date: November 18, 2002

AT&T Broadband traces its origin to the 1876 invention of the telephone by Alexander Graham Bell. In the following year, Bell and his partners founded the Bell Telephone Company. AT&T was subsequently incorporated as a subsidiary of Bell.

In 1899, it became the parent company of the entire Bell system after purchasing all of Bell’s assets. Fast-forward more than 100 years later, when AT&T in 2000 restructured into separately traded companies, one of which was AT&T Broadband.

Comcast acquired AT&T Broadband in 2002 with the hope that the cable provider would become a leading communications, media, and entertainment company.

The acquisition has helped Comcast to provide faster broadband speeds as well as offer more innovative television services throughout the U.S.

2. NBCUniversal

• Type of Business: Mass Media
• Acquisition Price: $23.2 billion (in total)
• Acquisition Date: January 29, 2011 (51%) and February 12, 2013 (49%)

NBCUniversal was the product of a 2004 merger of television network National Broadcasting Company, Inc., a subsidiary of General Electric Co. (GE), and French media conglomerate Vivendi Universal Entertainment.

In 2011, Comcast acquired a 51% stake in the company from GE, thus forming a joint venture. Comcast paid GE $6.5 billion in cash and contributed certain programming assets worth $7.25 billion to the joint venture.

Comcast purchased the remaining 49% of NBCUniversal for $16.7 billion in 2013.

NBCUniversal is now a leading media and entertainment company that develops, produces, and distributes entertainment, news, information, sports, and a variety of other content for global audiences. The business also operates theme parks worldwide.

NBCUniversal operates within three Comcast segments: Media, Studios, and Theme Parks.

In 2021, Comcast and NBCUniversal sought to dramatically expand into streaming media by either building a streaming business from within or buying a company.

The company eyed partnership with ViacomCBS Inc. or a takeover of Roku, according to a 2021 report in The Wall Street Journal.

Media companies such as ViacomCBS, Walt Disney Co., and Amazon.com Inc. pursued mergers to accelerate their streaming plans. Comcast is alone among media giants in combining both content and distribution.

3. Sky

• Type of Business: Broadcast and Telecommunications
• Acquisition Price: Estimated at $40 billion
• Acquisition Date: October 9, 2018

Sky Broadcasting originated from an earlier merger between Rupert Murdoch’s Sky Television and British Satellite Broadcasting. Comcast subsequently beat out rival Disney in securing control of Sky in 2018.

Sky is a leading European entertainment company which provides video, high-speed Internet, voice, and wireless phone services.

It also operates a content business, including entertainment networks, the Sky News broadcast network, and Sky Sports networks. This acquisition helped Comcast expand its international reach.

4. DreamWorks Animation

• Type of Business: Animation Studio
• Acquisition Price: $3.8 billion
• Acquisition Date: August 22, 2016

DreamWorks Animation was established as a division of DreamWorks SKG, which was founded in 1994 by Steven Spielberg, Jeffrey Katzenberg, and David Geffen. Hence the S, K, and G in the company name.

The company spun DreamWorks Animation off into a separate company in 2004. It was acquired in 2016 by Comcast’s subsidiary, NBCUniversal.

DreamWorks Animation now forms part of Comcast’s Studio business. The studio produces animated film and television content, expanding Comcast’s kids and family media entertainment offerings.

5. XUMO

• Type of Business: Online Video Streaming
• Acquisition Price: Not disclosed; estimated at over $100 million.
• Acquisition Date: February 25, 2020

XUMO was founded in 2011 as a joint venture between Viant Technology (then called Interactive Media Holdings) and Panasonic. Comcast subsequently acquired the company for an undisclosed amount in 2020.

XUMO offers free streaming entertainment, news, sports, and more with more than 190 different channels. It operates as an independent business within Comcast Cable.

The acquisition expanded Comcast’s video-streaming offerings and specifically provides free streaming content to consumers willing to watch advertisements that accompany that content.

The Bottom Line

Comcast has grown from a small, 1,200-subscriber cable company in Mississippi into a worldwide media and technology business. Its market cap in May 2025 was $128.66 billion.

Five major companies that Comcast owns are ATT Broadband, NBCUniversal, Sky, Dreamworks Animation, and XUMO.

Comcast Diversity and Inclusiveness Transparency

As part of our effort to improve awareness of the importance of diversity in companies, we have highlighted the transparency of Comcast’s commitment to diversity, inclusiveness, and social responsibility. The below chart illustrates how Comcast reports the diversity of its management and workforce. This shows whether Comcast discloses data about the diversity of its board of directors, C-suite, general management, and employees overall across a variety of metrics. We have indicated that transparency with a ✔.