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.

We believe in harnessing technology to create a world with next generation connected experiences that transform everyday living. With intense focus on end-to-end network solutions development, we conduct fundamental research in next-generation network applications at our Centre of Excellence. STL has a strong global presence with next-gen optical preform, fibre and cable manufacturing facilities in India, Italy, China and Brazil, along with two software-development center’s across India and one data centre design facility in the UK.

Our Customer Speak

Who We Are

SOME FACTS

US $736
mn Revenues*
3100+
Employees

Offices in
16
Countries

Serving customers in
100+
countries

4 Innovation Centers

376 Patents
filed-globally

The STL Story

Demerger of power and telecom businesses STL becomes pure-play telecom company

Acquisition of Telecom Software Services Company - Elitcore Technologies

Inauguration of Telecom R&D Centre of Excellence at Aurangabad

Roll out of end to end Broadband Networks (NFS Project)

JV in China & Brazil for Fibre & Cables manufacturing 20 MFKM Fibre capacity

Power Grid & FTTx Infrastructure business

Power Conductors Business

Optical fibre Manufacturing 0.5 MFKM Fibre capacity

Fibre optic cables manufacturing

Copper cables manufacturing