Company Description
Iridium Communications Inc. (NASDAQ: IRDM) is a commercial provider of mobile voice, data, and positioning, navigation and timing (PNT) satellite services. According to company disclosures, Iridium operates the only mobile voice, data, and PNT satellite network that spans the entire globe, enabling connections between people, organizations, and assets to and from anywhere, in real time. The company’s common stock trades on the Nasdaq Global Select Market under the ticker symbol IRDM, and it is headquartered in McLean, Virginia, U.S.A.
Iridium delivers its services through a low Earth orbit (LEO) satellite constellation, which the company describes as providing truly global, weather-resilient L-band connectivity. Iridium reports that it operates in one business segment focused on satellite communications services and products. Its network and services are used in markets that require truly global communications and mission-critical reliability, including government and defense, regulated industries, and critical infrastructure.
Business model and core services
Iridium generates service revenue from mobile voice and data communications, commercial Internet of Things (IoT) data, broadband, hosted payload and other data services, and government contracts. In its third quarter 2025 results, the company highlighted commercial service revenue, government service revenue under long-term contracts, equipment revenue, and engineering and support revenue as key components of its business. Service revenue is primarily recurring and is tied to a growing subscriber base, including commercial IoT customers.
On the commercial side, Iridium’s customer base spans aviation, construction, emergency services, forestry, maritime, mining, oil and gas, recreation, transportation, and other markets. The company also reports a significant commercial IoT subscriber base, with IoT data subscribers representing the majority of its commercial billable subscribers. Government service revenue is supported by contracts such as the Enhanced Mobile Satellite Services (EMSS) contract with the U.S. Space Force, which provides specified satellite airtime services for an unlimited number of U.S. Department of Defense and other federal government users.
Global satellite network and government relationships
Iridium emphasizes that its LEO satellite network provides resilient, mission-critical communications anywhere in the world, including in harsh environments and under adverse weather conditions. The company’s solutions improve situational awareness for military personnel and enable tracking of critical assets. Under the EMSS contract, Iridium provides satellite airtime services under a fixed-price arrangement, and it also performs maintenance and support work for a dedicated government gateway under additional contracts.
In addition to airtime services, Iridium has been awarded contracts for infrastructure and system enhancements. For example, the System Infrastructure Transformation and Hybridization (SITH) contract supports technological refreshes, lifecycle upgrades, and security enhancements for the EMSS Service Center, Technical Support Center, and Defense Ground Station. Iridium notes that SITH is one of three core EMSS contracts, alongside the EMSS Airtime Contract and the Capabilities and Security Sustainment Services Contract (ECS3).
Positioning, navigation and timing (PNT) services
Iridium expanded into PNT services through its acquisition of Satelles and its PNT service in 2024. The company now highlights PNT as a core offering, delivering authenticated, pole-to-pole positioning, navigation, and timing data as an alternative or complement to traditional Global Navigation Satellite Systems (GNSS) such as GPS. Iridium states that its PNT signals are significantly stronger than GNSS signals, can work inside buildings without an outdoor antenna, and are secured using cryptographic techniques.
The company’s PNT services are used to support critical infrastructure, including data centers, 5G wireless networks, aviation, maritime, land mobile, and IoT applications. Iridium has been selected by the U.S. Department of Transportation under its Complementary PNT Action Plan to support deployment and testing of Iridium PNT services, including live-site activations on T-Mobile’s 5G network in geographically diverse locations across the United States. These deployments are intended to strengthen network resilience against GPS disruptions by providing precise timing synchronization.
IoT connectivity and industry partnerships
Iridium’s network underpins a range of IoT connectivity services. The company reports that commercial IoT data revenue and subscribers have been growing, and its IoT connectivity is used for data messaging, tracking, and real-time monitoring of devices in remote locations. Iridium’s Short Burst Data (SBD) service is cited as a low-latency messaging and telemetry solution, while Iridium Burst enables simultaneous broadcasts to an unlimited number of enabled devices.
Iridium also partners with equipment manufacturers and mobile network operators to extend its reach. For example, HD Hyundai Construction Equipment selected Iridium’s satellite IoT connectivity to integrate with its Hi MATE remote fleet management system, enabling location tracking, geofencing, diagnostic insights, and performance data delivery for heavy equipment operating in remote sites. The Iridium Connected Hi MATE solution is described as enabling real-time monitoring, predictive maintenance, and remote troubleshooting.
In another partnership, Vodafone IoT plans to integrate Iridium NTN Direct, a 3GPP standards-based service providing NB-IoT and direct-to-device connectivity. This integration is intended to extend Vodafone IoT’s coverage so that NB-IoT devices in remote locations can remain connected for data messaging, tracking, and monitoring across IoT, automotive, and industrial applications. Iridium highlights that its network operates on globally coordinated L-band spectrum and has a track record of providing reliable, low-power connectivity suited to NB-IoT and direct-to-device use cases.
Defense and government-focused solutions
Iridium’s services are deeply integrated into government and defense communications architectures. The company notes that its voice and data solutions elevate situational awareness for military forces and provide precise tracking of critical assets. Under the EMSS program, Iridium offers secure voice, broadcast, push-to-talk, and other services to approved government subscribers anywhere on Earth.
Iridium has also collaborated with Qualcomm Technologies, Inc. to integrate Iridium data services into the Snapdragon Mission Tactical Radio (MTR) platform. This integration is aimed at U.S. government customers and approved allied partners. By incorporating SBD and Iridium Burst into Snapdragon MTR-equipped devices, Iridium enables flexible, secure L-band satellite communications for handheld and mounted radios, autonomous vehicles, and other devices that must operate where terrestrial networks are congested, compromised, or unavailable.
Technology development and product innovation
Iridium continues to invest in technology that builds on its global satellite infrastructure. The company has introduced the Iridium PNT ASIC, a miniature application-specific integrated circuit designed to provide authenticated PNT data to devices that rely on GPS and other GNSS. According to Iridium, this chip is engineered for integration into a wide range of electronic devices, from consumer products to major infrastructure systems, and receives a cryptographically secure time and location signal from the Iridium network.
The Iridium PNT ASIC is described as enabling devices to detect jamming or spoofing of GNSS signals and maintain operations during disruptions. Iridium reports that the ASIC can continuously verify signal integrity and is positioned as an alternative or primary source of PNT data. The company has showcased the ASIC’s performance at events that test resilience against jamming and spoofing and is inviting organizations to participate in beta trials and early integration.
Customer base and market focus
Iridium’s disclosures indicate a diversified customer base across commercial and government sectors. Commercial customers include industries such as aviation, construction, emergency services, forestry, maritime, mining, oil and gas, recreation, and transportation. The company also provides services to the U.S. Department of Defense and other civil and government agencies worldwide under various contracts and programs.
Within its commercial business, Iridium tracks subscribers across commercial voice and data, IoT data, and broadband services. IoT data subscribers represent the majority of commercial billable subscribers, reflecting the importance of machine-to-machine and asset-tracking applications to the company’s growth. Hosted payload and other data services, including contributions from PNT services, are also noted as part of Iridium’s commercial service revenue.
Capital allocation and shareholder returns
Iridium’s SEC filings and earnings releases describe an approach to capital allocation that includes capital expenditures for network and infrastructure, debt management, dividends, and share repurchases. The company has initiated and increased a quarterly dividend since 2023 and has repurchased shares under an authorized share repurchase program. Iridium also notes that it may adjust repurchase activity to prioritize investment in strategic growth initiatives and balance sheet deleveraging.
Operational EBITDA is presented by Iridium as a non-GAAP measure used to evaluate its fundamental operating performance, manage the business, and support budgeting, debt covenant compliance, and compensation plans. The company provides reconciliations of net income to Operational EBITDA in its investor materials and explains the adjustments involved, such as interest, taxes, depreciation and amortization, share-based compensation, acquisition-related costs, and gains or losses on equity method investments.
Corporate governance and listing
Iridium is listed on the Nasdaq Global Select Market under the symbol IRDM. Company announcements note that its Board of Directors includes a majority of independent members, and that the board may be expanded as new directors are appointed. Iridium participates in investor conferences and hosts quarterly earnings calls to discuss financial results and outlook with investors and analysts.
According to its public statements, Iridium continues to focus on growth markets where its global satellite network and PNT capabilities provide a competitive advantage, particularly in government, regulated industries, and critical infrastructure. The company emphasizes long-term value creation through disciplined execution, investment in technology, and support of mission-critical communications and safety services.