Top Web & App Development Company in Kolkata

Our Tech Stack

The Tools & Technologies We Build With

Web & App Development

Robust websites, web apps and mobile apps engineered for scale.

React

Next.js

Node.js

MongoDB

WordPress

Laravel

PHP

MySQL

AWS

Digital Marketing

AI-powered content, video and campaign tooling that scales reach.

HeyGen

Grok

VEED

Tag Manager

Canva

Search Console

Social Media Marketing

Data-driven paid & organic social, measured end to end.

Google Analytics

Meta Ads Manager

LinkedIn Campaigns

Zoho

Google Sheets

Notion

Happy Clients

Projects Done

Team Members

Awards Won

Testimonials

What Our Clients Say

“
Oneisok delivered our website ahead of schedule and exceeded expectations. Highly professional team.
R
Rahul Sharma
Startup Founder
“
Our e-commerce store looks fantastic and sales have grown. Best pricing we found anywhere.
P
Priya Das
Boutique Owner
“
Their SEO and digital marketing services genuinely moved the needle for our brand.
A
Amit Verma
Marketing Head
“
The team understood our brand instantly. Our new website loads fast and looks stunning on every device.
S
Sneha Kapoor
Founder, Bloom Studio
“
From strategy to launch, everything was smooth. Communication was clear and deadlines were always met.
A
Arjun Mehta
Managing Director, Mehta Exports
“
Their app development team is exceptional. Our product went from idea to the App Store in record time.
F
Fatima Khan
CEO, NovaTech
“
Oneisok delivered our website ahead of schedule and exceeded expectations. Highly professional team.
R
Rahul Sharma
Startup Founder
“
Our e-commerce store looks fantastic and sales have grown. Best pricing we found anywhere.
P
Priya Das
Boutique Owner
“
Their SEO and digital marketing services genuinely moved the needle for our brand.
A
Amit Verma
Marketing Head
“
The team understood our brand instantly. Our new website loads fast and looks stunning on every device.
S
Sneha Kapoor
Founder, Bloom Studio
“
From strategy to launch, everything was smooth. Communication was clear and deadlines were always met.
A
Arjun Mehta
Managing Director, Mehta Exports
“
Their app development team is exceptional. Our product went from idea to the App Store in record time.
F
Fatima Khan
CEO, NovaTech

“
Our social media campaigns finally deliver real leads. ROI has never looked this good.
R
Rohit Nair
Co-Founder, FitZone Gyms
“
Professional, creative and genuinely invested in our success. Best pricing without compromising quality.
A
Ananya Iyer
Marketing Head, Craftly
“
Their data-driven campaign strategy gave us a real edge. Insightful, ethical and always available.
V
Vikram Singh
Founder, Niti Consulting
“
A reliable partner from day one. They turned our vision into a brand people actually remember.
M
Meera Joshi
Co-Founder, Leafy Organics
“
Clean code, great architecture and on-time delivery. Exactly the technical partner we were looking for.
K
Karan Malhotra
CTO, Stackly
“
Test
J
Joydip
Test
“
Our social media campaigns finally deliver real leads. ROI has never looked this good.
R
Rohit Nair
Co-Founder, FitZone Gyms
“
Professional, creative and genuinely invested in our success. Best pricing without compromising quality.
A
Ananya Iyer
Marketing Head, Craftly
“
Their data-driven campaign strategy gave us a real edge. Insightful, ethical and always available.
V
Vikram Singh
Founder, Niti Consulting
“
A reliable partner from day one. They turned our vision into a brand people actually remember.
M
Meera Joshi
Co-Founder, Leafy Organics
“
Clean code, great architecture and on-time delivery. Exactly the technical partner we were looking for.
K
Karan Malhotra
CTO, Stackly
“
Test
J
Joydip
Test

Expert Team

Meet the people behind your project

Sneha Sah

Founder & CEO

Ajay Prakash Sah

Operational Head

Apurva Sharma

Umesh Kumar Sah

Senior Legal Advisior

Goutam Bose

Head, Legal Field-Sales

Monalisa Das

Telesales

Sanjita Yadav

Telesales

Rani Kumari

Head, Digital Marketing

Joydip Ghosh

Developer

Sourav Chowdhury

Developer

Create your brand online

Web Development Services with genuine care for your project

The Tools & Technologies We Build With

Web & App Development

Digital Marketing

Social Media Marketing

What Our Clients Say

Meet the people behind your project

Sneha Sah

Ajay Prakash Sah

Apurva Sharma

Umesh Kumar Sah

Goutam Bose

Monalisa Das

Sanjita Yadav

Rani Kumari

Joydip Ghosh

Sourav Chowdhury

Transparent Packages, Best Pricing Guaranteed

Basic*

Golden*

E-commerce*

News & Insights From The Team

Power Your Website with Off-Page SEO: Build Authority, Backlinks & Business Growth

How Google Ads Works: A Complete Guide for Business Growth

Benefits of PPC Advertising: A Smart Investment for Business Growth

Ready to start your project?