
Capital Numbers
ReviewKolkata digital engineering company for custom software, AI, and staff augmentation

Clients
About Capital Numbers
Capital Numbers is a Kolkata digital engineering company founded in 2012 and publicly listed on the BSE as Capital Numbers Infotech Limited. The official site positions the firm as the middle ground between small shops and large consultancies — AI-native software, cloud and data modernization, Salesforce, and managed or staff-aug teams for mid-market and enterprise buyers — with 600+ in-house professionals across three development centers. SOC 2 Type II, ISO 27001, and ISO 9001 are cited on the live site, along with Salesforce, Adobe, and Microsoft partner badges. Directories list $25-49/hr, a $10,000+ floor, and a 250-999 person team.
Who Capital Numbers Is Best For
Capital Numbers is best for companies that need to launch or scale software, extend an engineering team, or modernize cloud and data platforms with a publicly listed Kolkata firm. The official site positions 600+ in-house professionals, a BSE listing, SOC 2 Type II, ISO 27001/9001, and managed-team or staff-aug models. Not a fit if you need a US-only onshore studio, founder-level boutique attention, or a sub-$10,000 build.
Why Choose Capital Numbers
Things to Consider
Capital Numbers Services
Selected Work

Optimizing a Car Auction Platform to Drive Sales
Capital Numbers transformed an underperforming ultra-luxury car auction platform into a more engaging marketplace.
View case study
AI That Speaks Every Language of Insurance
A multilingual AI platform for insurance that automates workflows, supports compliance, and improves customer experience.
View case study
AI-powered Radiology Reports for Smarter Patient Care
An AI teleradiology solution that delivers faster, more accurate radiology reports.
View case studyReviews from Google
Capital Numbers have been really good to work with. The team has been helpful, responsive, and easy to communicate with throughout the project. They’ve taken the time to understand what I’m building and have helped move OptariX closer to launch. Good experience so far.
From the very beginning until the final delivery, my experience with Capital Numbers was highly professional in every respect. What I appreciated especially was the clear project structure and the fact that dedicated contact persons were assigned throughout the entire process. Communication was reliable, responsive and well coordinated. Jag, Subhajit and the development team handled the collaboration with a high level of professionalism, patience and commitment. Even smaller adjustments and follow-up questions were treated seriously and resolved thoughtfully. The final result exceeded my expectations. The website was implemented with technical precision and a good understanding of the intended visual and strategic direction. I felt well supported throughout the entire collaboration and would gladly recommend Capital Numbers to anyone looking for a reliable and highly professional development partner.
Reviews sourced from Google
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