Software development · Chennai, Tamil Nadu
A software development company in Chennai that builds around how you work.
Catalyst Labs is a small, founder-led software studio in Chennai. We build custom software, websites and web applications, mobile apps and SaaS products for businesses in Chennai, across Tamil Nadu and beyond.
Every engagement starts by mapping how the work actually moves through your business. The architecture follows from that, not from a template, and nothing is scoped before it is understood.
- Based in
- Chennai, Tamil Nadu, India
- Registered
- Micro Enterprise, Udyam
- Scope
- Fixed and written before any code
- Reply
- Within one working day
01 · What we build
Practices most relevant here.
- 02Custom SoftwareSystems shaped to how the business actually runs.
- Internal operations platforms
- Admin and back-office tools
- Role-based access control
- 03Web ApplicationsFast, accessible products people can actually use.
- Product and marketing front-ends
- Dashboards and customer portals
- Design systems and components
- 04Mobile ApplicationsiOS and Android on a backend built to hold.
- iOS and Android applications
- Offline and sync behaviour
- Push notifications
- 05SaaS & MVP DevelopmentFrom a concept to something real users can pay for.
- Product scoping and architecture
- Multi-tenant foundations
- Subscriptions and billing
02 · How we work
No surprises between the proposal and the product.
You agree a fixed scope in writing, see the real product every week, and own it when it ships. Here is how a project runs from first conversation to launch.
Fixed, written scope
You receive a written scope and a fixed proposal before any code is written, so there are no open-ended invoices.
Working software every week
From the first build cycle you see the real product on a staging URL, and can redirect while redirecting is still cheap.
Handed over, documented, yours
Code ownership transfers to you once the project is in production and the bug-fix period is complete, with documentation throughout.
A registered Chennai business
Catalyst Labs is a Udyam-registered micro enterprise in Chennai. The registration number is published on the site and can be checked on the government portal.
Discover
Days 1–5
We sit with the business before we open an editor: how work moves today, where it stalls, who touches it, and what a fix is actually worth. Most projects change shape here - usually getting smaller and sharper.
You receive
- Problem definition
- Workflow map
- Scope and success criteria
- Fixed proposal
Architect
Week 1–2
The system gets designed before it gets built: data model, integrations, where AI genuinely earns its place, and what happens when a dependency fails. Decisions are written down with their trade-offs.
You receive
- System architecture
- Data model
- Integration plan
- Technical decisions log
Design
Week 2–3
Interface design driven by the workflow, not by a template. We design the states people actually hit - empty, loading, error, permission-denied - because that's where software is won or lost.
You receive
- Design system
- Key screen flows
- Interactive prototype
- Accessibility standard
Build
Week 3 onward
Engineering in short cycles against a working deployment. You see the real product every week, on a staging URL, and can redirect while redirecting is still cheap.
You receive
- Weekly working builds
- Staging environment
- Test coverage
- Documentation
Launch & Improve
Ongoing
Launch is a checkpoint, not the finish. Instrumentation goes in with the release, so the next iteration is decided from usage rather than opinion - and someone is on the other end when something breaks.
You receive
- Production deployment
- Monitoring and alerting
- Handover and training
- Iteration roadmap
Working with businesses in Chennai, Coimbatore, Madurai, Tiruchirappalli, Salem, Tirunelveli and across Tamil Nadu, remote-first, with calls and delivery handled online.
03 · Work
Built and in production.

Fashion e-commerce · Live
INEGO
The online store for INEGO, a clothing brand, with a virtual try-on so shoppers can try products before buying.
₹5 lakh+ revenue (brand-reported)

Apparel sourcing · Live
TAIG Fashion Profiles
A B2B site for an apparel sourcing and buying house, built to convert overseas buyer enquiries.

EV infrastructure · Live
Attram Technologies
The marketing site for an EV charging installation company operating across South India.
04 · FAQ
Straight answers.
Which software development services do you offer in Chennai?
Custom business software and internal tools, websites and web applications, mobile apps for iOS and Android, SaaS and MVP builds, and API and systems integration, plus AI automation where it earns its place.
How long does a project take?
A focused website or tool is typically weeks, an MVP a few months. We give a timeline in the written proposal after discovery, because it depends on scope.
Who owns the code?
You do. Ownership transfers to you once the project is deployed to production and the bug-fix period is complete.
Can you work with an existing website or system?
Yes. We start by reviewing what exists, then decide with you whether to extend it, fix it or rebuild parts of it.
Also see: AI Automation Company in Chennai, India · Software Development from India for US, UK & EU Clients
Have a project in mind? Tell us about it.
Describe what you are trying to build, automate or improve. We will tell you what it would take, and whether we are the right team.
Or choose how to talk
After you send
- We read itA person reads every enquiry. There is no filter in front of it.
- A reply in one working dayUsually with a question or two about the problem, before anything else.
- A call, then a written proposalIf there is a project here: a written scope, a fixed proposal and a start date.
Recent results
mithun@catalystlabs.co.in · +91 96770 80327 · Chennai, India