5G/6G Telecom Buildout
Towers, small cells, antennas, fibre and the network gear behind India's mobile buildout
What this is
- Operator capex becomes a physical build: towers, fibre, radio gear, antennas and backup power.
- PLI incentives let Indian factories win a growing share of the equipment bill.
Why now
- 5G is entering a multi-year build: denser city networks and wider rural reach.
- Early fibre and open-RAN spend for 6G has started.
- Orders flow to towers, fibre, active equipment and power systems.
What to watch
- Operator capex guidance and tower/site addition targets
- PLI scheme disbursements for telecom equipment manufacturing
- Spectrum auction outcomes and rollout obligations
- Open-RAN and indigenous RAN stack adoption (Tejas, ITI, C-DOT)
- Tower InvIT acquisition/consolidation activity
Major areas
The map groups the anatomy into these areas before you drop into individual components.
Site, Towers & Power
The physical towers, land/sites and backup power systems that every active equipment layer is built on top of.
Fibre & Backhaul
Optical fibre and cable manufacturing that carries backhaul and access traffic to and from each site.
Active Network & RF Equipment
The RAN, switching and antenna/RF equipment that processes and transmits radio traffic at each site.
Component Manufacturing (EMS)
Contract manufacturers assembling the PCBs, routers and RAN sub-assemblies that active-network OEMs design.
Deployment & Installation Services
The turnkey EPC contractors that erect towers, lay fibre and commission equipment on behalf of operators.
Carrier Demand & Operations
The mobile and enterprise carriers whose capex and opex programs drive demand across every other domain.
Network builders & installers
The telecom EPC, installation and infrastructure-services companies that turn towers, fibre, radios and power gear into a working 5G network for the operators.
Larsen & Toubro
ListedTelecom EPC/Smart World & Communication is one small division inside a giant infra/engineering conglomerate
RailTel Corporation of India
ListedNavratna PSU operating one of India's largest neutral telecom infrastructure networks along railway right-of-way
Pace Digitek
ListedTelecom-infra EPC + solar; also designs/installs DC power systems and batteries for towers
Sar Televenture
ListedSmall EPC contractor for 4G/5G tower construction
Potential bottlenecks
- Site acquisition and right-of-way/municipal permitting delaysTelecom Towers & Passive Infrastructure
- Tenant concentration - a financially stressed operator can stall co-location revenueTelecom Towers & Passive Infrastructure
- Steel and galvanising input-cost volatility for new tower buildsTelecom Towers & Passive Infrastructure
- Right-of-way and trenching permissions for new fibre routesOptical Fibre & Cable Manufacturing
- Cyclical OFC pricing - global oversupply has driven multi-year industry lossesOptical Fibre & Cable Manufacturing
- Fibreisation lagging tower rollout, leaving many sites on microwave backhaulOptical Fibre & Cable Manufacturing
- Global chip/component supply for RAN hardwareRAN, Active Network Equipment & Switching
- Government/PSU order-cycle lumpiness for indigenous suppliersRAN, Active Network Equipment & Switching
- Operator capex timing driving demand more than steady organic growthRAN, Active Network Equipment & Switching
- RF-component supply chains often shared with, and prioritised for, defence programsAntennas, RF & Microwave Components
- Telecom-specific antenna revenue rarely broken out from defence/space segmentsAntennas, RF & Microwave Components
- Import dependence for high-end RF front-end componentsAntennas, RF & Microwave Components
- Execution/labour capacity constraints during fast rollout phasesTelecom EPC, Installation & Infrastructure Services
- Working-capital intensity of project-based, milestone-billed contractsTelecom EPC, Installation & Infrastructure Services
- Right-of-way and local permitting delays at the site levelTelecom EPC, Installation & Infrastructure Services
- Global semiconductor/component supply for telecom-grade electronicsElectronics Manufacturing Services (EMS)
- Telecom is usually one of several verticals served, diluting capacity allocationElectronics Manufacturing Services (EMS)
- Customer concentration - a handful of OEM relationships can dominate telecom-linked revenueElectronics Manufacturing Services (EMS)
- Battery chemistry/raw-material supply for site backup systemsPower & Energy Systems for Towers
- Diesel emission-norm transitions raising genset costsPower & Energy Systems for Towers
- Telecom-specific demand rarely disclosed separately from broader industrial/automotive battery and genset businessesPower & Energy Systems for Towers
- Industry-wide debt burden and AGR-related legacy liabilities constraining capex at weaker playersTelecom Operators (Demand Side)
- Intense tariff competition limiting pricing power despite rising data consumptionTelecom Operators (Demand Side)
- Spectrum cost and availability shaping how fast capex can translate into coverageTelecom Operators (Demand Side)
Companies in this theme
43 companies, 41 listed. The 5 network builders & installers are listed above.
Indus Towers
ListedLargest listed independent tower company (Bharti Airtel controlling shareholder post Vodafone exit)
Company page →Altius Telecom Infrastructure Trust
ListedTower InvIT - acquired American Tower Corp's India business (~₹13,288 Cr, Sept 2024), rebranded 'Elevar'
Company page →Digital Fibre Infrastructure Trust
ListedInvIT holding Reliance Jio's fibre network assets (sibling structure to Altius on the tower side)
Company page →Suyog Telematics
ListedBuilds, owns and leases telecom towers/poles (IP-1) and installs OFC
Company page →Sterlite Technologies
ListedPure-play optical fibre/cable and networking products maker
Company page →HFCL
ListedOptical fibre/cable, telecom equipment (routers, 5G RAN components) and defence electronics
Company page →Vindhya Telelinks
ListedTelecom/railway/solar/specialty cables and IP-1 fibre network investments (MP Birla Group)
Company page →Finolex Cables
ListedPrimarily electrical/building wires; communication cables (LAN/telecom copper) are a minority segment
Company page →Tejas Networks
ListedLeading indigenous optical/packet-transport and RAN equipment maker (Tata Group-controlled, BSNL key customer)
Company page →Frog Innovations (Frog Cellsat)
ListedIn-building coverage (DAS/repeaters) and mobile network accessories for 2G-5G
Company page →ADC India Communications (Krone Communications)
ListedStructured cabling and copper/fibre physical connectivity products for telecom/enterprise networks
Company page →Centum Electronics
ListedRF/microelectronics/space-grade electronics for defence and telecom
Company page →Bharat Electronics
ListedGrowing 5G/telecom RF-component business alongside its much larger defence-electronics base
Company page →Optiemus Infracom
ListedElectronics contract manufacturer (smartphones for Ai+ from 2026, wearables, telecom gear) that also distributes handsets
Company page →Dixon Technologies
ListedIndia's largest listed EMS player; telecom/networking gear (routers, set-top boxes) is one of several segments
Company page →Kaynes Technology India
ListedDiversified EMS (auto, industrial, telecom, medical) with telecom/networking as one vertical
Company page →MIC Electronics
ListedLED lighting/display systems and telecom equipment (also railway and EV-charging electronics)
Company page →HBL Engineering
ListedTelecom/industrial batteries, including 20,000+ installations for the BharatNet Wi-Fi project
Company page →Amara Raja Energy & Mobility
ListedIndustrial/automotive battery major; telecom/UPS backup batteries are part of its industrial segment
Company page →Exide Industries
ListedAutomotive/industrial battery major; telecom/industrial UPS batteries are a minority segment
Company page →Cummins India
ListedLeading listed diesel-genset/engine maker; DG sets are widely used for tower backup power
Company page →Vodafone Idea
ListedThird major private telco, historically loss-making with negative net worth
Company page →Bharti Hexacom
ListedBharti Airtel subsidiary (listed 2024) - second-largest wireless operator in Rajasthan and Northeast circles
Company page →Tata Communications
ListedGlobal enterprise/wholesale connectivity and data-centre operator rather than a retail mobile carrier
Company page →Jio Platforms (Reliance Jio Infocomm)
UnlistedIndia's largest telco by subscribers - wholly-owned unlisted subsidiary of listed Reliance Industries
Skipper
ListedGalvanised lattice steel towers, monopoles and tower structures for telecom and power transmission
Company page →Salasar Techno Engineering
ListedTelecom tower and steel structure fabrication, galvanising, monopoles for telcos and power T&D
Company page →Tata Teleservices (Maharashtra)
ListedTata group telecom circle operator (Maharashtra & Goa) - enterprise/fixed-line and data services since exiting retail mobile in 2019
Company page →Mahanagar Telephone Nigam (MTNL)
ListedPSU telecom operator (Delhi & Mumbai circles) - fixed-line, mobile and broadband services
Company page →Reliance Communications (RCOM)
UnlistedLegacy/defunct telecom operator - historical relevance to India's pre-2019 tower/telecom ecosystem
Common questions
Which listed companies are in India's 5G/6G Telecom Buildout supply chain?
NextResearch maps 41 listed companies across 8 layers of the 5G/6G Telecom Buildout supply chain. The largest with high exposure, by market cap as of 30 Oct 2026: Bharti Airtel (₹12.31L Cr); Vodafone Idea (₹1.28L Cr); Indus Towers (₹1.00L Cr); Bharti Hexacom (₹81,857 Cr); and Altius Telecom Infrastructure Trust (₹53,025 Cr).
What are the layers of the 5G/6G Telecom Buildout supply chain?
8 layers: Telecom Towers & Passive Infrastructure; Optical Fibre & Cable Manufacturing; RAN, Active Network Equipment & Switching; Antennas, RF & Microwave Components; Telecom EPC, Installation & Infrastructure Services; Electronics Manufacturing Services (EMS); Power & Energy Systems for Towers; and Telecom Operators (Demand Side).
Who are the end players in 5G/6G Telecom Buildout?
In the Telecom EPC, Installation & Infrastructure Services layer: RailTel Corporation of India, Pace Digitek and Sar Televenture. Also there, with low exposure: Larsen & Toubro and Bondada Engineering.
What are the bottlenecks in India's 5G/6G Telecom Buildout supply chain?
Telecom Towers & Passive Infrastructure: Site acquisition and right-of-way/municipal permitting delays. Optical Fibre & Cable Manufacturing: Right-of-way and trenching permissions for new fibre routes. RAN, Active Network Equipment & Switching: Global chip/component supply for RAN hardware. Antennas, RF & Microwave Components: RF-component supply chains often shared with, and prioritised for, defence programs. More by layer on this page.