We engineer web platforms, mobile apps, and AI systems that businesses depend on — React, Next.js, Flutter, Node.js, Python, AWS. Senior engineers only. Production-grade code, on timelines we actually meet.
Not a skill list we pulled off LinkedIn. Not a "we do everything" dump. Each tag shows how many times we've shipped it — hover a linked one to go read the service page.
Every tile is a flagship page you can read in five minutes — no fluff. Hover a tile to see the specific sub-services; click through to read the proof.
We don't try to be good at everything. These are the industries where we've shipped enough to know the compliance, workflows, and user expectations before you brief us.
We don't ship features that add weight without value. Every line of code answers a business question you can measure — and keeps answering it three years later.
The one we're most proud of isn't on any award shelf: zero missed deadlines in 150+ projects.
Every case below is a real client, a real problem, and the specific measurable we moved. Use arrow keys (← →) or drag the track to navigate.
Custom CRM + WhatsApp orchestration.
Problem: 77% of leads died silently in an agent's WhatsApp. We built: automated multi-touch follow-up, mandatory call-logging, SLA escalation.
Headless rebuild of a Shopify store outgrowing the platform.
Problem: checkout broke on 2G, COD confirmation was manual, Black Friday would have crashed the stack. We built: headless commerce on Medusa with 2-tap UPI and automated COD-OTP.
Unified ERP replacing Tally + 4 Excel files.
Problem: inventory across plants lived in four spreadsheets, month-close took two weeks of reconciliation. We built: one ERP for sales, production, stores, finance — migrated 5 years of Tally.
RBI-compliant digital lending platform from in-principle to production.
Problem: RBI timelines meant the MVP had to be production-grade, not a prototype. We built: KYC pipeline, underwriting engine, NACH mandates, collections dashboard — audit-passed first try.
You sign off at every handoff. Weekly demos mean no surprises the month before launch. Total time from kickoff to production: typically 12–18 weeks.
Two weeks of listening before a single line of code.
Architecture, cost, timeline — committed before work starts.
Figma prototypes. User-tested. You sign off first.
Two-week sprints. Live demos every Friday.
Deploy, monitor, iterate. Most clients stay 3+ years.
Not curated marketing pull-quotes. Real outcomes from real clients. Hover any row to pause. The bar chart below is our actual rating distribution on Clutch.
Leadbig is the only agency that felt as invested in my success as I was. 18 months later, our platform serves 50,000 users daily.
"Leadbig is the only agency that felt as invested in my success as I was. 18 months later, our platform serves 50,000 users daily."
"We interviewed 12 agencies. Leadbig was the only team that understood not just the tech but the business problem. Worth every rupee."
"On time, under budget, exactly what we asked for. Then they suggested an improvement that saved us six months."
"The design work alone is worth the price. But the engineering depth behind it — that is what makes it unbeatable."
"Our old system took 4 minutes to load a report. Theirs takes 1.2 seconds. That is not optimisation — that is a different category."
"They delivered the MVP in 6 weeks, helped us get funded at ₹12Cr, then built v2 alongside the team they helped us hire."
"Our Tamil-speaking customers stopped hanging up. That was the success metric."
"Their CTO sat with our product team for two weeks before writing a line of code. We have worked with five agencies. Nobody else did that."
"Leadbig is the only agency that felt as invested in my success as I was. 18 months later, our platform serves 50,000 users daily."
"We interviewed 12 agencies. Leadbig was the only team that understood not just the tech but the business problem. Worth every rupee."
"On time, under budget, exactly what we asked for. Then they suggested an improvement that saved us six months."
"The design work alone is worth the price. But the engineering depth behind it — that is what makes it unbeatable."
"Our old system took 4 minutes to load a report. Theirs takes 1.2 seconds. That is not optimisation — that is a different category."
"They delivered the MVP in 6 weeks, helped us get funded at ₹12Cr, then built v2 alongside the team they helped us hire."
"Our Tamil-speaking customers stopped hanging up. That was the success metric."
"Their CTO sat with our product team for two weeks before writing a line of code. We have worked with five agencies. Nobody else did that."
"Their CTO sat with our product team for two weeks before writing a line of code. We have worked with five agencies. Nobody else did that."
"Our Tamil-speaking customers stopped hanging up. That was the success metric."
"They delivered the MVP in 6 weeks, helped us get funded at ₹12Cr, then built v2 alongside the team they helped us hire."
"Our old system took 4 minutes to load a report. Theirs takes 1.2 seconds. That is not optimisation — that is a different category."
"The design work alone is worth the price. But the engineering depth behind it — that is what makes it unbeatable."
"On time, under budget, exactly what we asked for. Then they suggested an improvement that saved us six months."
"We interviewed 12 agencies. Leadbig was the only team that understood not just the tech but the business problem. Worth every rupee."
"Leadbig is the only agency that felt as invested in my success as I was. 18 months later, our platform serves 50,000 users daily."
"Their CTO sat with our product team for two weeks before writing a line of code. We have worked with five agencies. Nobody else did that."
"Our Tamil-speaking customers stopped hanging up. That was the success metric."
"They delivered the MVP in 6 weeks, helped us get funded at ₹12Cr, then built v2 alongside the team they helped us hire."
"Our old system took 4 minutes to load a report. Theirs takes 1.2 seconds. That is not optimisation — that is a different category."
"The design work alone is worth the price. But the engineering depth behind it — that is what makes it unbeatable."
"On time, under budget, exactly what we asked for. Then they suggested an improvement that saved us six months."
"We interviewed 12 agencies. Leadbig was the only team that understood not just the tech but the business problem. Worth every rupee."
"Leadbig is the only agency that felt as invested in my success as I was. 18 months later, our platform serves 50,000 users daily."
Not a sales intern with a templated reply. Every first response goes through the desk of the person technically responsible for the delivery.
I've sat through enough vendor meetings where nobody in the room could actually ship the thing being promised. That will not happen here. If we take your project, I've already walked through the architecture. If something breaks at 2 AM, I'm the one reading the Sentry alert.
A 30-minute call. No slide deck. Leave with three specific next steps — whether or not we end up working together.