STL is an industry-leading integrator of digital networks

We design and integrate these digital networks for our customers. With core capabilities in Optical Interconnect, Virtualised Access Solutions, Network Software and System Integration, we are the industry’s leading end-to-end solutions provider for global digital networks. We partner with global telecom companies, cloud companies, citizen networks and large enterprises to deliver solutions for their fixed and wireless networks for current and future needs. Read More..

4
Innovation Centres
Research & Development
425
Patents
in glass science, precision manufacturing,
virtualised network software and more
4
Innovative Solutions
across the network stack

Solutions

co-developed with our customers to cater the most pressing needs of today and tomorrow

Let us take you through

Our incredible journey of years

  1. journey 1988

    1988

    Humble Beginnings, Bold Ambition

    With a dream to take India to the technological forefront, Anil Agarwal established a copper cable manufacturing unit in Aurangabad, India - the early beginnings of what would become STL.

  2. journey 1993

    1993

    Entering the World of Optical Fibre

    To fuel growing aspirations as a technology pioneer, STL established an optical fibre cable manufacturing unit in Silvassa, expanding STL’s capabilities as well as its horizons.

  3. journey 1995

    1995

    The First Chapter in the STL25 Story

    We established our first optical fibre plant in Aurangabad, India - a move that would define STL’s identity for the next 25 years.

  4. journey 2004

    2004

    A Growing Portfolio of Customer Needs

    To fulfil ever-evolving customer needs, a data cable manufacturing unit was set-up in Dadra, adding breadth to STL’s growing portfolio. The unit remains one of India’s most advanced speciality cable manufacturing facilities, to this day.

  5. journey 2012

    2012

    Making Inroads Globally

    Expanding our global footprint, STL’s first overseas manufacturing unit was set up in Haimen City, China. The greenfield facility was a result of a joint venture between STL and Jiangsu Tongguang Communication Co. Ltd. (TGCl), to fulfil China’s 100 million fkm annual demand for optical fibre.

  6. journey 2013

    2013

    Next Destination, Brazil

    Furthering our global strategy of building complementary partnerships in key geographical locations, STL formed a joint venture with Conduspar Condutores Eletricos Ltda. to establish a second overseas manufacturing unit in Curitiba, Brazil.

  7. journey 2015

    2015

    Becoming An End-to-End Solutions Provider

    With the acquisition of Elitecore Technologies, STL’s goal was to diversify beyond the infrastructure vertical, and provide end-to-end solutions to its Telco partners. This allowed STL to offer industry leading software solutions for operations support, business support, and revenue management.

  8. journey 2017

    2017

    Building a Future-ready STL

    At STL, Innovation is in our DNA. To research and build accessible network technologies of the future, STL set up ‘Centre for Smarter Networks’ at Gurgaon, India. The centre is a part of STL’s growing list of innovation centres, which have collectively contributed to 376 patents over the years.

  9. journey 2018

    2018

    Italy Comes Calling

    In line with STL’s identity as an end-to-end global technology leader and integrator of digital networks, STL acquired Metallurgica Bresciana - an Italian specialised optical cable manufacturer. The move greatly augmented our access to strategic European markets and opened new pathways for STL.

  10. journey 2019

    2019

    Made in India, for the World

    With a vision to make India the digital capital of the world, STL undertook various strategic initiatives in 2019:

    Building one of the world’s largest greenfield semiconductor-grade optical fibre preform plants - Gauav, in Aurangabad, India.
    Acquisition of UK-based Impact Data Solutions (IDS) to strengthen our design and deployment offerings for hyper scale data centres
    Strategic partnerships with various entities like TIP, ONAP, O-RAN, and ONF to create higher-speed, lower cost, more secure, programmable, and more reliable networks for the future.
  11. journey 2020

    2020

    Converging Networks for the Market

    STL made yet another strategic investment in ASOCS - a developer of open, disruptive, and virtualized Radio Access Network (vRAN) solutions, delivering 4G and 5G for cellular networks. This allows STL to offer end-to-end capabilities for a converged network, i.e. both wireless and wireline, and deliver full-stack solutions to enterprise and telco customers.

STL in numbers

USD $
736mn
FY20 Revenue*
 
3100+
Employees
Serving customers in
100+
Countries
Capacity
50m
Fibre kilometer
Offices in
16
Countries
7
Global production facilities


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Meet Our Leadership

CSR initiatives

and its impact
Optical Connectivity
Environment
S.U.R.E packaging
Zero waste to landfill
World’s first integrated optical fibre producure
Reduced CO2
Emissions significantly
Optical Connectivity
Social
1.32M
Lives positively impacted

Education : Smart Nandghars, Digital Empowerment
Health : Mobile Medical Unit
Environment : Jaldoot, Greenbelt
Optical Connectivity
Governance
Transform
Rural India (Pilot across 3 states) for digital readiness
Results
27% increase in internet usage
76.2% women using supplementary education
50% more usage of Govt. Apps
8.7 average user rating
Optical Connectivity
Education
72k
Trained Professionals
10K
Certified Professions
Academy
Training for deployment of future ready networks

Client Opinions & Reviews

hendrik-wilkens
Hendrik WilkensHead of Project Management Metro Fibre Networx
qoute
At STL, we just don't focus on customer satisfaction but prefer to become a partner of choice for tomorrow's network creators. While doing so we grow raving fans. Want to know more, here is how we make them feel when they do business with us.
randeep
Randeep Sekhon,CTO Airtel
qoute
I can validate that STL is a thought leader in optical business and its strategy of virtualised radio and FTTX is in the right direction.
arun
Arun Jain,President Network & Fibre Jio
qoute
STL has been our partner since inception. As we enhance our value proposition for our customers, STL as our network partner is enabling the reach of our digital sol. to the last mile.
arun
Susanne Stengade,CEO 6X
qoute
We have been working with STL for the last 5 years and we have grown a tremendous business together. The partnership has worked out amazing for us.
arun
Ewald van der Westhuizen,Regional Director Vumatel
qoute
We can really witness how evolved STL is from the glass to the actual implementation and application of the networks and products in the networks. I haven’t witness this ever in my life before.
arun
Stefan Spaelter,VP Sol. PLM Infinera
qoute
The Fibre tech, deep vertical integration, and interesting product line create an opportunity for partnering in the future.