Telstra Valuation Multiples

SpaceX is an American aerospace manufacturer and space transportation company founded in 2002 by Elon Musk and incorporated in Texas, alongside launch and manufacturing sites in Hawthorne, California, Cape Canaveral, Florida, and Vandenberg Space Force Base. The company designs, builds, and operates the Falcon 9 and Falcon Heavy rockets, the Dragon crew and cargo spacecraft, and the fully reusable Starship vehicle, and has accounted for the large majority of global mass launched to orbit in recent years on the strength of reusable-rocket economics and a high launch cadence. Its Starlink division operates a low-Earth-orbit satellite constellation delivering broadband internet to more than ten million subscribers across roughly 160 countries, while the Starshield program supplies satellite and connectivity services to government and defense customers. In February 2026 SpaceX combined with Musk's artificial intelligence firm xAI, the developer of the Grok chatbot, which had itself absorbed the social platform X, consolidating space, connectivity, and AI operations under common ownership. The company completed an initial public offering on June 12, 2026, one of the largest in market history, and is led by Musk as CEO.

China Mobile is not only the largest telecom operator in China by the number of mobile subscribers (1 billion) but also the largest in the world. It has 60% of the total wireless market in China and over 50% of the fixed-line broadband market. The firm has largely rolled out its 5G network, having launched 5G service in late 2019. It is doing some 5G network sharing with China Broadnet at 700 MHz and also resells its 3G/4G/5G network through China Broadnet. Growth is being generated through internet data centers where it has the second-largest network in China and through Cloud Services. The company issued stock on the A-share market in 2022 and completed its first buyback of H-shares.

Wireless services account for 75% of Verizon Communications' total service revenue and nearly all of its operating income. The firm serves about 94 million postpaid and 20 million prepaid phone customers via its nationwide network, making it the largest US wireless carrier. Fixed-line telecom operations include local networks in the Northeast that reach about 30 million homes and businesses, including about 20 million served by the Fios fiber-optic network. Verizon closed its acquisition of Frontier Communications in January, adding networks that reach another 15 million locations, including 9 million with fiber. These networks serve about 11 million broadband customers. Verizon also provides telecom services nationwide to enterprise customers, using a mix of its own and other networks.

SoftBank Group is a Tokyo-listed technology investment and telecommunications holding company founded in 1981. Its assets include a controlling interest in semiconductor designer Arm, ownership positions in Japanese telecommunications and internet businesses, and a global portfolio of public and private technology companies. SoftBank also sponsors the Vision Funds, which invest large pools of capital in growth-stage companies across artificial intelligence, software, consumer internet, mobility and related sectors. The group earns operating revenue from consolidated businesses and investment returns through asset management, equity ownership and disposals. In September 2021 SoftBank Vision Fund 2 led Sorare’s USD 680 million Series B financing, which valued the fantasy-sports company at USD 4.3 billion. The live Sorare round already names SoftBank Group as lead investor; the Aldea correction only adds the missing participating investor and aligns the date with Sorare’s official announcement.

Deutsche Telekom merged its T-Mobile USA unit with prepaid specialist MetroPCS in 2013, and that firm merged with Sprint in 2020, creating the second-largest wireless carrier in the US. T-Mobile now serves 86 million postpaid and 26 million prepaid phone customers, equal to around 30% of the US retail wireless market. The firm entered the fixed-wireless broadband market aggressively in 2021 and now serves 8 million residential and business customers with its wireless network. It also serves 1 million fiber broadband customers through joint ventures with fiber network owners. T-Mobile owns a stake in these firms, which provide wholesale access to their networks. In addition, T-Mobile provides wholesale services to wireless resellers.

The wireless business contributes nearly 70% of AT&T’s revenue. The company is the third-largest US wireless carrier, connecting 74 million postpaid and 17 million prepaid phone customers. Fixed-line enterprise services, which account for about 14% of revenue, include internet access, private networking, security, voice, and wholesale network capacity. Residential services, about 11% of revenue, primarily consist of in-home broadband internet access, serving 15 million customers. AT&T also has a sizable presence in Mexico, with 25 million wireless customers, but this business only accounts for 3% of revenue. The company recently sold its 70% equity stake in satellite television provider DirecTV to its partner, private equity firm TPG.

Deutsche Telekom is a Bonn-headquartered telecommunications group formed in 1995 from Germany’s former federal postal and telecom administration. It provides mobile and fixed connectivity, broadband, enterprise ICT, cloud and digital services across Europe and the United States. Revenue comes from subscriptions, usage, equipment sales, wholesale access and technology services. The group serves consumers, businesses, carriers and public-sector organizations through brands including Telekom, T-Mobile and regional subsidiaries. Deutsche Telekom was already OTE’s strategic shareholder when it exercised its right of first refusal over HRADF’s 5% stake in 2018. The purchase was a secondary increase in an existing strategic holding rather than a new primary financing.

Bharti Airtel Ltd is a telecommunications company. The company's segments include Mobile Services India, Mobile Services Africa, Mobile Services South Asia, Airtel Business, Passive Infrastructure Services, Homes Services, Digital TV Services, and others. It generates maximum revenue from the Mobile Services India segment. Mobile Services India services cover voice and data telecom services provided through wireless technology (2G /3G/4G) in India. It includes the captive national long-distance networks, which provide connectivity to the mobile services business in India. It also includes intra-city fibre networks.

Equinix is a global digital-infrastructure company that develops and operates carrier-neutral data centres and interconnection services. Founded in Silicon Valley in 1998, it is headquartered in Redwood City, California, and is publicly listed on Nasdaq. Its International Business Exchange and xScale facilities give enterprises, cloud platforms, network operators, content providers and financial institutions places to deploy computing equipment and exchange data. Customers also use virtual networking, managed infrastructure, security and professional services to connect distributed applications across markets. Equinix earns recurring revenue primarily from colocation space, power, cross-connects and other subscription-like infrastructure services, supplemented by usage and service fees. Its platform spans hundreds of data centres across six continents and links customers to a large ecosystem of cloud and network providers. The company is structured as a real estate investment trust for United States federal income-tax purposes.

NTT Group is the Japanese telecommunications and information technology group led by NTT, Inc., a holding company headquartered in Otemachi, Chiyoda, Tokyo and listed on the Tokyo Stock Exchange. The company traces its origins to Japan's state telegraph service; the government-owned Nippon Telegraph and Telephone Public Corporation was set up in 1952, privatised on 1 April 1985 as Nippon Telegraph and Telephone Corporation, and renamed NTT, Inc. on 1 July 2025. Its main subsidiaries are mobile operator NTT Docomo, which also sells broadband; NTT East and NTT West, the regional fixed-line and fibre-to-the-home operators; NTT Data, which provides system integration, IT consulting, cloud and managed services, cybersecurity and data centre infrastructure worldwide; plus NTT Urban Solutions and NTT Anode Energy. It serves consumers, businesses and public bodies, earning recurring fees for mobile and fixed communications services and project and service fees from its IT business. In fiscal 2025 (the year to March 2026) it reported revenue of ¥14.41 trillion and net income of ¥1.04 trillion, with about 347,700 employees, and it ranks among the world's largest telecommunications companies by revenue. Japan's Minister of Finance holds 34.25% of the shares. Akira Shimada is president and chief executive and Jun Sawada is chairman.

China Telecom is the largest fixed-line operator in China, originally covering 21 southern provinces but now operating nationally. It has 200 million broadband customers, and 437 million wireless subscribers, having overtaken China Unicom to become the second-largest wireless operator in China behind China Mobile. The firm is increasing its cross-selling of products and seeing strong growth from industrial digitization services, such as internet data centers and cloud computing. Its internet data center business is already the largest in China and it is expanding overseas.

American Tower owns and operates about 150,000 wireless towers throughout the US, Asia, Latin America, Europe, and Africa. It also owns and/or operates 30 data centers in 11 US markets after acquiring CoreSite. On its towers, the company has a very concentrated customer base, with most revenue in each market generated by the top few mobile carriers. The company operates more than 40,000 towers in the US, which accounted for about half of total revenue in 2024. Outside the US, American Tower operates about 47,000 towers in Latin America (dominated by Brazil), 32,000 towers in Europe, and 27,000 towers in Africa. American Tower operates as a REIT.

Comcast is made up of three parts. The core cable business owns networks capable of providing television, internet access, and phone services to 65 million US homes and businesses, or nearly half of the country. The firm provides services to about 47% of the locations in this territory. Comcast acquired NBCUniversal from General Electric in 2011. Following the spinoff of several cable networks, including CNBC, MSNBC, and USA, NBCU now consists of the NBC network, several local NBC affiliates, Bravo, the Peacock streaming platform, Universal Studios, and several theme parks. Finally, Sky, acquired in 2018, is a large television provider in the UK and Italy.

Motorola is a United States public-safety and enterprise-security technology company supplying land-mobile radio systems, command-center software, video security, analytics, and managed services to governments and businesses. The organization serves customers through a defined operating business rather than acting as an investment vehicle. Its team combines sector expertise, customer delivery, technology or physical operations, and continuing product development. Clients use its products or services to solve recurring operational needs in the markets where it is active. Revenue is generated from commercial products, recurring software, or contracted services supplied to customers. The company maintains its own management, workforce, commercial identity, and relationships with customers and suppliers. Its transaction history is tracked under this operating identity so that similarly named businesses in other countries or industries are not combined with it. The cited company and transaction sources establish the identity, location, activity, and role used in this research packet.

SoftBank is an established, telecommunications services provider in Japan owning a mobile network with around 50 million mobile customers and 24% market share. It also provides some fixed line services, which are mostly resold so are low margin. The company also owns 32.4% of LY Corp, and SoftBank and LY Corp each own 32% of PayPay so SoftBank consolidates PayPay. SoftBank Group sold 33.5% of SoftBank Corp in an IPO in 2018 and has since sold down further to a 40% holding.

America Movil is the largest telecom carrier in Latin America, serving about 330 million wireless customers across the region. It also provides fixed-line phone, internet access, and television services in most of the countries it serves. Mexico is the firm’s largest market, providing about 35% of service revenue. Movil dominates the Mexican wireless market with about 60% customer share and also serves about half of the country's fixed-line internet access customers. Brazil, its second most important market, provides about 20% of service revenue. Movil sold its low-margin wireless resale business in the US to Verizon in 2021 and now owns a 1.4% stake in the US telecom giant. The firm also holds a 61% stake in Telekom Austria.

KDDI is a Japanese telecommunications operator headquartered in Iidabashi, Chiyoda, Tokyo, and the country's second-largest mobile carrier by number of contracts after NTT Docomo. Its roots go back to DDI, founded in 1984 by Kyocera founder Kazuo Inamori, and KDDI was formed in 2000 by merging DDI, the former international monopoly KDD and mobile operator IDO. It sells mobile services under the au brand and the UQ Mobile and povo sub-brands, fixed broadband under au Hikari, and cable television through its J:COM joint venture. It also runs data centres through Telehouse, corporate network and cloud services, and financial services through au Financial Holdings. KDDI earns most of its revenue from monthly mobile and broadband subscriptions, and reported revenue of about ¥5.24 trillion and 44,952 employees in fiscal 2020. It invests in start-ups through its corporate venture programme, the KDDI Open Innovation Fund. In sports technology it backed multi-angle replay company 4DReplay in 2017 and 2019 and Tokyo sports video-analysis software maker RUN.EDGE in 2020. KDDI is listed on the Tokyo Stock Exchange.

Digital Realty is a real estate investment trust that owns and operates carrier-neutral data centers, headquartered in Austin, Texas after relocating there in January 2021. It was established in 2004 by GI Partners, which contributed 21 data centers acquired in bankruptcy auctions, and it trades on the New York Stock Exchange as DLR and is a member of the S&P 500. In 2023 it operated over 300 facilities in more than 25 countries, and it reported revenue of US$4.69 billion in 2022 with about 3,450 employees. It earns rent and fees from colocation, interconnection and large-scale space leased to cloud providers, enterprises and carriers. Its large acquisitions include DuPont Fabros Technology in 2017, Ascenty in 2018 for US$1.8 billion, and Interxion, announced in October 2019 at a US$8.4 billion enterprise value and completed on 12 March 2020. Andrew Power is chief executive.

Saudi Telecom Co offers telecommunications, information and media services that establish, manage, operates and maintains fixed and mobile telecommunication networks and systems to customers. The company manufactures and markets devices, equipment, and components of different telecommunication networks including fixed, moving and special networks, and computer programs and the other intellectual properties. It is also engaged in real estate investment activities. The company principally earns its revenue from airtime usage, messaging, data services, interconnect fees, connection fees and device sales. Its reportable segments include: stc; Channels; Solutions; stc Kuwait; stc Bahrain; Center 3; STC Bank; Sirar; Specialized; iot2; and Other operating segments.

Singapore Telecommunications is Singapore's leading telecoms company. It owns extensive wired and wireless networks offering data and voice services to a broad customer base. Singtel's diverse investment portfolio spreads across the region. The firm wholly owns Optus in Australia and minority equity stakes in Airtel (28%) in India; Telkomsel (35%) in Indonesia; Globe Telecom (47%) in the Philippines; and Advanced Information Services (23%) and Intouch (21%) in Thailand. Singtel is majority-owned by the Singapore government.

Nokia provides telecom equipment and services that are used to build wireless and fixed-line networks. It operates in four segments. The mobile networks segment sells equipment and services to telecom carriers to power public wireless networks. Network infrastructure focuses on fixed-line networks, including switching and routing equipment, optical components, and devices used in fiber-to-the-premises networks. The cloud and network services segment develops software used to operate the core of carrier wireless networks and build private networks for enterprises. Nokia also has a sizable research and patent business, where it licenses technology used by handset providers, consumer electronics firms, and other firms making electronic and Internet of Things products.

Emirates Telecommunications Group Co PJSC is a telecommunications company. Through its subsidiaries, the company provides telecommunication and consulting services, media services, and equipment to over sixteen countries in Asia and Africa. Etisalat specializes in fixed-line services, voice communication, wireless communication, and data communication services. The majority of the company's revenues profits and assets relates to its operations in the UAE.

Ciena is a telecommunications equipment provider focused on optical transport technologies, with clients in a number of industries such as communication services providers, web-scale providers, cable operators, government, and large enterprises worldwide. The company provides equipment, software, and services that support transport, switching, aggregation, service delivery, and data traffic management.

Orange is a France-based telecommunications group that operates mobile, fixed-line, broadband and enterprise-network services across Europe, Africa and the Middle East. It serves consumers, businesses and public-sector organizations through subscription connectivity, devices, digital services and managed networks. The group was historically known as France Télécom and adopted the Orange corporate name in 2013. In Morocco it entered Medi Telecom with a 40 percent acquisition in 2010 and bought a further 9 percent in 2015. The operator subsequently adopted the Orange Maroc brand while retaining the Medi Telecom legal heritage. Orange is a publicly traded operating company, so its purchases of the Moroccan operator are classified as strategic M&A rather than financial sponsor transactions.

Swisscom is the incumbent telecom operator in Switzerland, with a very high market share in mobile and fixed-line markets. It charges high prices compared with its competitors and other European peers due to the historical stability of the Swiss telecom market and a favorable regulatory environment. In 2024, Swisscom acquired Vodafone Italia in a deal worth EUR 8 billion.

Vodafone operates mobile and fixed-line networks and businesses across Europe, Africa, and the Middle East. Its largest market is Germany, where it is the second mobile operator after Deutsche Telekom and owns two cable network after acquiring Kabel Deutschland in 2013 and Liberty Global Germany in 2019. In the UK Vodafone merger with CK Hutchison in 2024, consolidating the mobile market. It also divested its Spanish and Italian divisions in that same year, given their low returns on invested capital.

Chunghwa Telecom Co Ltd is Taiwan's integrated telecom operator, providing fixed-line, wireless, and Internet and data services. The company segment consists of Consumer Business, Enterprise Business, International Business, and Others. The company generates the majority of its revenue from the Consumer Business segment. The consumer Business segment generates revenue from Mobile services, Fixed-line services, Sales, and others.

Crown Castle owns or manages roughly 40,000 wireless towers in the United States. It leases space on its towers to wireless service providers, which install equipment to support their wireless networks. The company has a very concentrated customer base, with about 75% of its revenue from the Big Three US mobile carriers: Verizon, T-Mobile, and AT&T. Crown Castle has plans to divest its fiber business, which is expected to be finalized in the first half of 2026. After that, it will be a stand-alone tower operator. Crown Castle operates as a real estate investment trust.

Ericsson is a networking equipment and software provider, primarily selling mobile networking equipment and services to wireless service providers. Ericsson operates in three segments: networks, cloud software and services, and enterprise. While large wireless carriers are its largest customers, Ericsson has expanded its offerings for large enterprises. These products and services include private 5G networking, contact centers as a service, and application performance interfaces. Ericsson aims to combine its 5G network expertise with cloud-native, as-a-service platforms offering a more comprehensive hardware and software package. Ericsson also monetizes its research and development investments by licensing patents to handset manufacturers.

BT Group is the incumbent telecommunications operator in the UK. BT is the owner of Openreach, the largest fixed-line network in the country. Openreach operates as a separate entity due to regulatory requirements but is still 100% owned by BT. Openreach has accelerated its fiber investments and expects to have 90% of the UK covered with FTTH by 2026. In the consumer division, BT has approximately 30% market share in broadband and mobile services. The enterprise segment serves large corporations while the global services division provides communications consultancy services.

Yangtze Optical Fibre and Cable Joint Stock Ltd Co are principally engaged in the research, development, production and sale of optical fiber preforms, optical fibers, optical cables optical components and modules and related products. The company is the supplier of optical fibre preform, optical fibre, optical fibre cables and other relevant products in telecommunication industry. The group determines the two reporting segments, optical communication products segment and optical transmission components segment. The company generates majority of revenue from optical communication products segment. Its products include Cutting-Edge Product, Specialty Fibre, Raw Material, Submarine Cable, Communication Optical Fibre, Structured Cabling, Optical Transceiver, Coaxial Cable, etc.

China Unicom is the incumbent fixed-line operator in 10 northern Chinese provinces, as well as the third-largest wireless operator nationwide. As of June 2025, it had around 355 million billing wireless customers and over 125 million fixed-line subscribers. China Unicom also has a growing ICT business. We estimate it has the third largest internet data center business in China with 420,000 cabinets and its Cloud Service revenue is also showing strong growth. It has its own 4G network and shares the radio access function with China Telecom for its 5G network.

Telefónica is a company whose business is listed telecommunications group providing fixed, mobile and digital services. The organisation is based in Madrid and operates with sector-specific employees, commercial relationships and delivery infrastructure. It serves households, small businesses, enterprises and wholesale network customers. Its products and services are used in Spain, Germany, Brazil and other markets through fibre, mobile and cloud infrastructure. The company earns revenue through subscription and services, reflecting the way customers purchase its offering. Management coordinates product development, sales, operations and customer support for the relevant market. The business is an operating company rather than an investment vehicle, even where a financial sponsor owns shares. This profile describes the transaction-period entity and avoids conflating it with similarly named companies, subsidiaries or current parent groups. The description supplies the operating context required to interpret its role as a target, platform or acquirer in the documented transactions.

MTN Group Ltd is a mobile telecommunications provider operating across South Africa, Nigeria, Ghana, Cameroon, Ivory Coast, Uganda, Syria, and Sudan. The majority of the company's revenue is earned in South Africa and Nigeria. The company also has a joint venture in Iran. From a product perspective, the majority of its revenue is from voice and data. Other contributors include SMS and sale of devices revenue. MTN also provides enterprise services to small/midsize enterprises and corporate clients. The company owns the mobile infrastructure and data centers. Its segments include Network services, Mobile devices, Inter connect and roaming, Digital and fintech and others.

China United Network Communications Ltd is a Chinese telecom operator. It operates fixed and mobile communications services, as well as domestic and international communications facilities, a satellite IPLC service, a data communications service, a network access service, value-added telecom services, and system integration services related to information and communications services. The company provides its products to personal & residential customers, small & medium businesses, VIP customers, and international customers.

China Tower Corp Ltd is a telecommunications tower infrastructure service provider. The Company is principally engaged in the construction, maintenance, and operation of base station ancillary facilities such as telecommunications towers, public network coverage in high-speed railways and subways, and large-scale indoor Distributed Antenna Systems (DAS). The business of the company includes Tower business; DAS business; Smart Tower business and Energy business. The Group’s revenue is generated from the Three TSPs.

Telefonica Brasil, known as Vivo, is the largest wireless carrier in Brazil with 102 million customers, which is equal to about 39% market share. The firm is strongest in the postpaid business, where it has 68 million customers, or about 41% share of this market. Wireless services and equipment contribute about 70% of total revenue. Vivo is the incumbent fixed-line telephone operator in Sao Paulo state and also owns an extensive fiber network across the country. The firm provides internet access to 8 million households on this network. The firm also sells pay-TV and phone services to its fixed-line customers. Finally, corporate data and IT services, including cloud computing support, contribute about 9% of total revenue.

SBA Communications owns a portfolio of about 45,000 wireless towers throughout North America, South America, and Africa. It leases space on its towers to wireless service providers, who install equipment to support their wireless networks. The company has a very concentrated customer base, with most revenue in each market being generated by the top few mobile carriers. It owns more than 17,000 towers in the US, which account for about 75% of leasing revenue. Internationally, SBA’s largest presence is in Brazil, where it owns roughly 10,000 towers. SBA operates as a real estate investment trust.

Cellnex owns and operates more than 100,000 wireless towers in Europe, the result of continued merger and acquisition activity since its initial public offering in 2015. It has acquired towers from several European mobile network operators, including Telefonica, Iliad, CK Hutchison, Bouygues, and Altice. Cellnex is present in France, Italy, Spain, Poland, and the United Kingdom, among others.

BCE is one of Canada’s “Big 3” telecom service providers, offering wireless and broadband services nationally, but with strongholds in Ontario, Quebec, and Atlantic Canada. The firm serves 10 million postpaid and nearly 1 million prepaid wireless customers, and 5 million broadband customers across a footprint reaching about 13 million homes. The firm purchased Ziply Fiber in 2025, expanding its reach to the Pacific Northwest of the US. Outside of its wireless and wireline services, BCE operates a media segment containing multiple broadcast television channels, regional radio stations, and a digital media platform. The firm completed its divestiture of its 37.5% share of Maple Leafs Sports and Entertainment to Rogers in 2025, retaining its minority position in the Montreal Canadiens.

Vodacom Group Ltd is a telecommunications provider. The company provides fixed-line, broadband, and mobile services. It earns revenue through two main segments: South Africa and international. International includes regions such as Tanzania, Democratic Republic of Congo, Mozambique, and Lesotho; the majority of revenue is sourced from South Africa. Vodacom also has an enterprise service product, whereby telecommunications and managed services are offered to enterprises. The company owns mobile infrastructure.

Telia is the incumbent telecom operator in Sweden. It also operates in Norway, Finland and the Baltic countries. In the past five years, Telia has been narrowing its business focus, divesting businesses in Asia and focusing on its core markets.

Telenor is an international provider of telecommunications services. It is the incumbent dominant telecom operator in Norway, and the Norwegian government holds a stake of more than 50% in the firm. Telenor also operates in other Nordic countries like Sweden, Denmark, and Finland, and owns several businesses in Asia. Most of Telenor's operations are mobile businesses, although it also has some fixed-line operations in Nordic European countries.

Bouygues is a family-controlled French conglomerate that comprises a disparate range of assets: construction businesses, a TV network, and a telecom network. It is one of the largest construction companies in France and Europe, with over EUR 45 billion in revenue across the four engineering, procurement, and construction businesses under its ownership, as well as one of the four telecom operators in France.

KPN is the incumbent telecommunications operator in the Netherlands. It has 40% share of the broadband market and 20% of the postpaid mobile market, with VodafoneZiggo (mobile and fixed) and Odido (mobile) as main competitors. KPN is rolling out fiber to the home in the Netherlands and expects to have most of the country covered by 2026. KPN's management has a cost-conscious mentality, something that has allowed it to grow dividends at midsingle digits over many years.

Rogers Communications is the largest wireless service provider in Canada with more than 11 million subscribers, equating to one-third of the total Canadian market. Rogers' wireless business accounts for more than half of total revenue and has been growing at a higher rate than other segments. The cable segment, which provides about 38% of total revenue after acquiring Shaw, offers home internet, television, and landline phone service to consumers and businesses. Remaining sales come from Rogers' media unit, which owns and operates various television and radio stations and major Toronto sports franchises, including the Blue Jays, Maple Leafs, Raptors, Toronto FC, and Argonauts.

Hengtong Optic-Electric Co Ltd provides fiber optic communication products in China and internationally. It offers optical rods, optical fiber, optical cable, optical devices, an optical network, ocean optical network products, data communication products, power transmission products, ocean engineering, quantum security communications, rail transit, and smart city products.

MasTec is a leading infrastructure construction company operating mainly in North America across a range of industries. Its primary activities include engineering, building, installing, maintaining, and upgrading communications, oil and gas, utility, renewable energy, and other infrastructure. MasTec reports its results under five segments: communications; clean energy and infrastructure; pipeline infrastructure; power delivery; and other.