Software · Brand · Attention

Three sides. One team.

Your software, your brand and the attention that brings customers in, planned and built together.

A clear next step from every call, even if it isn't us.

OUTPUTBusiness liveLEADSAaBrand & webMarketingLaunch

Three vendors. Three stories. One confused customer.

You hire a developer for the app, a designer for the logo, a marketer for the ads. Each does good work. None of it fits together.

The app says one thing, the Instagram page says another, and the customer quietly leaves. We think the gaps between vendors cost more than the vendors do. So we removed them.

What we do

Pick the side that hurts most.

We'll show you how it connects to the others.

The machinery side of your business

Three things we build, all on the same foundation: the systems your team runs on, the app in your customer's pocket, and the website they find first.

Enterprise applications

Your business runs on spreadsheets and WhatsApp forwards. It deserves better.

We build the software your team opens every morning: internal tools, platforms, dashboards and integrations, engineered to handle real load and real money.

  • Custom web platforms
  • Dashboards and internal tools
  • APIs and integrations
  • Payments and fintech
  • Identity and access
  • AWS architecture
Build my system

Mobile apps

Your customers live on their phones. Your business doesn't, yet.

iOS and Android apps designed for the second week, not just the first download. We build the backend too, which is where most apps quietly break.

  • iOS and Android
  • App UX and UI
  • Backend and APIs
  • Payments and wallets
  • Push notifications
  • Store launch
Plan my app

Websites

People Google you before they call you. What do they find?

Your website is the first meeting, before the first meeting. Fast, clear sites that answer the visitor's question in five seconds and turn interest into enquiries.

  • Business websites
  • Landing pages
  • E-commerce
  • SEO-ready structure
  • Copywriting
  • Hosting and care
Start a website

Digital marketing

Attention is a monkey. It only watches what moves.

Your customer isn't ignoring you on purpose. They're holding a screen full of things trying to be noticed. We help you be the thing worth noticing, for the right person, and we measure it in leads, not likes.

  • Social strategy and content
  • Google and Meta ads
  • SEO and Google Business Profile
  • Short video
  • Email and WhatsApp
  • Tracking and reports
Earn attention

Branding

You look smaller than you are.

When two businesses charge the same price, people choose the one they believe. A brand is that belief, made visible. We design identity systems, not just logos.

  • Brand strategy and naming
  • Logo and identity system
  • Brand guidelines
  • Social templates
  • Packaging and print
  • Motion and brand video
Shape my brand

Stack

Built on tools that last.

Six pillars hold up everything we build and market. Modern, proven technology that is fast to build with, easy to hand over and ready to grow.

  • SvelteKit
  • React
  • Next.js
  • TypeScript
  • Tailwind CSS
  • SvelteKit
  • React
  • Next.js
  • TypeScript
  • Tailwind CSS
Frontend Frontend
  • Flutter
  • Swift
  • Kotlin
  • React Native
  • Expo
  • Flutter
  • Swift
  • Kotlin
  • React Native
  • Expo
Mobile Mobile
  • Go
  • Node.js
  • Python
  • GraphQL
  • NestJS
  • Go
  • Node.js
  • Python
  • GraphQL
  • NestJS
Backend Backend
  • PostgreSQL
  • Redis
  • MongoDB
  • Supabase
  • Prisma
  • PostgreSQL
  • Redis
  • MongoDB
  • Supabase
  • Prisma
Data Data
  • AWS
  • Docker
  • Kubernetes
  • Vercel
  • GitHub Actions
  • AWS
  • Docker
  • Kubernetes
  • Vercel
  • GitHub Actions
Cloud & DevOps Cloud
  • Semrush
  • Canva
  • HubSpot CRM
  • Google Analytics 4
  • Meta Ads Manager
  • Semrush
  • Canva
  • HubSpot CRM
  • Google Analytics 4
  • Meta Ads Manager
Marketing Marketing

How we think

We start with the gap, not the brief.

Most projects begin with a list of features. Ours begin with a question: what are you trying to achieve, and what's standing in the way? The answer is usually a gap nobody has named yet.

  1. Step 01

    Find the gap

    Where are your customers being let down, by you or by everyone else in your market? That's where the opportunity sits.

  2. Step 02

    Name the outcome

    More enquiries, fewer manual hours, a product people pay for. We agree on what success looks like before we agree on what to build.

  3. Step 03

    Build the shortest path

    Software, brand, marketing, or all three. Only what closes the gap, and nothing that just looks busy.

The best opportunities aren't hidden. They're just sitting in the gaps everyone walks past.

Approach

Agencies make you manage the gaps. We remove them.

One point of contact

One person owns your project from first call to launch.

No chasing three agencies for updates or explaining your business three times. Your project lead coordinates design, build and marketing.

Fixed quotes, clear timelines

You know the price and the launch date before we start.

Every project starts with a written plan. Any change to scope is agreed in writing before work continues, so there are no surprise invoices.

You own everything

Your domain, website, logo files and ad accounts stay in your name.

We hand over all source files and logins at the end. If you ever leave, you take everything with you.

Process

From first call to launch in four steps

  1. Step 01

    Listen

    A free call about your business, customers and goals. Then a written plan and a fixed quote.

    Week 1
  2. Step 02

    Draw

    Brand, screens and campaign ideas, reviewed with you before anything is built.

    Weeks 2–3
  3. Step 03

    Build and launch

    Built, tested on real devices, launched. Enterprise systems and apps take longer, and the plan says exactly how long.

    Weeks 3–8
  4. Step 04

    Grow

    Monthly improvements based on what the numbers say, not what we feel.

    Ongoing

Work

Work that's already out in the world.

Filter

Visit a live site, or start a project.

About

Zentaris started where most good ideas go to wait: inside a corporate office.

Roshini, founder of Zentaris, seated
Roshini Founder

Our story

What if the problem isn't that businesses lack opportunities, but that they don't always know how to reach them?

That question stayed with me throughout my years in the corporate world. I saw the distance between having an ambition and having the right people, tools, and thinking to pursue it.

Zentaris started with a simple belief: the right connections can change what's possible.

Roshini, FounderFormer corporate professional who spots the opportunity in the gap, then builds the team to go after it.

What we believe

  • Specific beats big.

    We'd rather be the obvious choice for a few people than a forgettable option for everyone.

  • Look at every side before you build.

    The cheapest fix is the one you make on paper.

  • Ship, then improve.

    A real launch teaches more than a perfect plan.

  • Say the true thing.

    Even when it costs us the project.

  • Leave the client stronger.

    They should own everything and understand most of it.

FAQ

Common questions

How much does a website cost?

It depends on the number of pages and features. After a free call we send a fixed quote, so there are no surprises later.

How long does a project take?

A business website usually takes 3–5 weeks from first call to launch. Branding projects take 2–3 weeks.

Can I hire you for just one service?

Yes. Many clients start with a website or a logo and add marketing later. Everything we make is designed to connect.

Do you work with businesses outside my city?

Yes. We work with clients across India and abroad over video calls, WhatsApp and email.

What happens after launch?

You can manage the site yourself (we show you how), or choose a monthly plan for updates, hosting and marketing.

Contact

Tell us what you're building

Book a free 30-minute call. You'll leave with clear next steps, whether or not you work with us.

Phone / WhatsApp +91 877 886 2157
Based inChennai, India
Request a call

Contact

Tell us what you're building

Book a free 30-minute call. You'll leave with clear next steps, whether or not you work with us.

What are you looking to build?
What stage are you at?

We reply within one working day.