TBIG Telecom Tower Leasing: Core infrastructure service for mobile operators

Responsible: ad hoc news Lifestyle & Consumer Desk. Reviewed prior to publication on June 12, 2026 at 2:15 PM ET. Details in the imprint.

Telecom tower leasing from TBIG is a core infrastructure service that allows mobile network operators to host their antennas and active equipment on shared tower sites instead of building their own structures. According to PT Tower Bersama Infrastructure Tbk, the group operated more than 22,000 telecommunication sites and over 42,000 tenants as of late 2023, reflecting its role as one of Indonesia's leading independent tower companies. These sites support major mobile operators with space on towers, ground area for shelters, and power access under long-term lease agreements.

How TBIG's tower leasing service works

PT Tower Bersama Infrastructure describes its main business as providing telecommunication towers and related infrastructure to wireless communication service providers on a lease basis. Mobile operators typically sign long-term contracts, often 10 years or more, for space on TBIG towers where they can install antennas, radio units, and associated cabling. TBIG focuses on a build-to-suit model where towers are constructed to meet specific operator requirements in agreed locations, as well as on leasing existing towers to additional tenants through colocation.

Because TBIG operates as an independent tower company, it can host multiple operators on a single structure, which helps spread the cost of construction and maintenance across several tenants. This shared model is an important part of how mobile network coverage can expand efficiently, especially in markets with challenging geography and high growth in data traffic. The company notes that its sites are located in both urban and suburban areas, including dense population centers where network capacity is most in demand.

In its public materials, TBIG explains that it earns revenue primarily from recurring lease payments based on contracted tenancy on its towers. Each tower includes space for passive infrastructure such as the steel structure, foundations, access roads, and security, as well as room for operators to install active equipment. Operators usually provide their own antennas, base station units, and transmission equipment, while TBIG handles the structural integrity and site management.

Alongside the physical tower, the leasing service often includes access to supporting facilities like power connections, cable trays, and ground space for shelters or equipment cabinets. These components are critical for keeping wireless networks running, but they are not typically visible to end users. As mobile subscribers stream video, use messaging apps, or make voice calls, their devices connect through base stations mounted on towers such as those operated by TBIG.

Role in supporting 4G and 5G networks

Industry disclosures from PT Tower Bersama Infrastructure highlight that its tower portfolio is used to support 2G, 3G, and 4G networks, with a growing role in the expansion of 5G-ready infrastructure. As data traffic has increased, operators have needed more sites and higher tenancy ratios per tower to maintain service quality. TBIG's shared infrastructure model is designed to accommodate additional tenants and antenna upgrades, which allows operators to densify their networks without duplicating passive assets.

According to the company's investor presentations, TBIG has focused new builds on locations requested by customers, often in areas where there is strong demand for mobile data. This build-to-suit approach means new towers are usually backed by anchor tenancy commitments, which can help improve utilization rates over time as more operators join the same site through colocation. The model is relevant for future 5G deployments that may require denser networks, especially in urban corridors.

While tower leasing is not a consumer-facing subscription in the sense of a streaming or cloud app, it underpins everyday connectivity for smartphone users. The towers provide the physical sites where operators install radios that deliver mobile broadband and voice services. As such, the performance and availability of TBIG's tower infrastructure indirectly affect how reliably subscribers can access their mobile plans, including high-speed data and newer services like 5G where offered by their carrier.

Contract structure and customer base

PT Tower Bersama Infrastructure states that it works with all major cellular operators in Indonesia, supplying towers and related infrastructure under long-term contracts. These agreements usually have fixed recurring fees and may include clauses for rental escalation over time. Because towers are capital-intensive assets with long useful lives, long-duration contracts help match the investment horizon of tower construction with predictable lease income.

Colocation is a significant element of the business. When a second or third operator leases space on an existing tower, TBIG can increase revenue from the same asset with only incremental cost for structural reinforcement or additional equipment space. Public presentations from the company have highlighted tenancy ratio as a key performance indicator, reflecting the average number of tenants per tower. Higher tenancy ratios can improve margins because the core structure and land lease are already in place.

From a service design perspective, tower leasing contracts often define parameters such as the height and position of antennas, allowable wind loading, and the amount of power capacity reserved for each tenant. TBIG also specifies access procedures for technicians and sets service levels for site availability, since downtime on a tower can affect multiple operators at once.

Digital tools and operational services around tower leasing

While TBIG is primarily known for its physical infrastructure, its public communications describe various operational capabilities that support the tower leasing service. These include site acquisition, permitting, construction management, and ongoing maintenance across its portfolio of towers. The company coordinates with local authorities for zoning and rights of way, then manages the logistics of building and maintaining towers, especially in areas with difficult terrain or limited access.

In investor materials, PT Tower Bersama Infrastructure also emphasizes network operations and monitoring functions that help maintain uptime for tenants. This work ranges from inspecting tower structures to managing power systems and ensuring that environmental conditions at sites remain within agreed specifications. For mobile operators, outsourcing this part of the infrastructure stack to a specialist tower provider can free up resources to focus on spectrum, network design, and customer-facing services.

The tower leasing service is complemented in some locations by in-building and distributed antenna system solutions, which aim to provide coverage inside high-rise buildings or dense complexes where outdoor macro towers alone may not be sufficient. These systems similarly rely on agreements with carriers, and they use shared infrastructure to distribute signals across multiple points indoors.

For international observers, TBIG's approach aligns with the broader global trend where independent tower companies own and operate passive infrastructure and lease it on a neutral-host basis to multiple carriers. This arrangement can lower barriers to network expansion and reduce the duplication of towers, which might otherwise have environmental and visual impact implications.

For now, PT Tower Bersama Infrastructure's telecom tower leasing service remains central to its business profile, supplying key passive infrastructure that enables Indonesian mobile operators to expand coverage and capacity without carrying the full cost of tower ownership. Shares of PT Tower Bersama Infrastructure Tbk (ID1000116809, ticker TBIG) last traded in the United States over-the-counter; no primary NYSE or Nasdaq listing was identified in recent public disclosures.

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