11+ years engineering infrastructure that outlasts its warranty.
We're a manufacturing company that happens to think like an engineering studio — every pole, mast and luminaire is a structural decision before it's a product.
Built on the shop floor, not a slide deck.
SDN Industries Private Limited started as a small structural steel fabrication unit supplying brackets and mounting hardware to regional electricity boards. What set the shop apart early on wasn't scale — it was that every weld, every base plate, was treated as a structural calculation, not a guess.
Eleven years on, that same discipline runs through a business that now spiral-welds, casts, galvanizes and lights infrastructure across the country — from highway interchanges to heritage promenades. We grew by taking on the jobs that needed engineering judgement, not just a price quote.
Today, our in-house capability spans forming, welding, hot-dip galvanizing, powder-coating and luminaire assembly — which means the same team that designs a foundation detail is accountable for the pole that ships.
What we optimize for when no one's watching.
Purpose-Led Engineering
Every product starts with the load case and the environment, not the catalogue page.
Uncompromising Quality
Structural sign-off, weld inspection and galvanizing depth checks on every single batch.
Partnership Over Transactions
We stay involved from foundation drawing to commissioning — not just till the invoice clears.
Responsible Manufacturing
Closed-loop galvanizing effluent treatment and steel offcut recycling across our units.
Quality that's measured, not assumed.
Every stage of production — forming, welding, galvanizing, coating — runs against a documented standard, checked before the next stage starts.
- ISO 9001:2015 certified quality management
- Structural design to IS 875 / EN 40 wind codes
- In-house hot-dip galvanizing to IS 4759
- Third-party load testing on every pole family
Manufacturing Units
Poles / Year Capacity
States Served
Years of Operation
Eleven years, in a straight line.
Foundation
Started as a structural steel fabrication unit serving regional electricity boards.
First Highmast Contract
Delivered our first national-highway highmast lighting contract — 40 towers, on time.
In-House Galvanizing
Commissioned our own hot-dip galvanizing plant and secured ISO 9001 certification.
Capacity Expansion
Scaled fabrication capacity to 50,000+ poles a year across two manufacturing units.
Lighting Division Launch
Launched a dedicated decorative and architectural luminaire division.
6,000+ Installations
Crossed 6,000 completed installations across highways, ports, campuses and cities.
Bring us a spec sheet, a site, or just a problem.
Our engineering team scopes projects from a single decorative pole to a multi-highmast rollout.