Capital Numbers

Your End-to-End Digital Transformation Partner

4.8 48 Reviews
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Capital Numbers is a leading software solutions company that provides excellent digital engineering services to startups, agencies, SMEs, and Fortune 500 corporations across the globe. Our team of over 750 proficient professionals excels in cloud, mobile, data engineering, DevOps, and application development, using state-of-the-art technologies such as React, Angular, .NET, Python, Node, PHP, Java, and more. As an award-winning firm with certifications such as ISO 9001 and 27001, we are your trusted development partner. We offer access to India's top 1% of software developers on demand, making us the reliable choice for all your development needs.

Web Development - We offer high-quality web application development services to small and midsize companies at a value unmatched in the industry. We can ship cutting-edge, affordable assets using modern toolkits that complement our lean development style. We specialize in PHP, RoR, Python, Django, Node.js, Angular, and React.js and tackle any engineering challenge.

Mobile App Development - Capital Numbers balances quality and value, offering superior mobile application development services at a rate unmatched by industry competitors. Depending on your needs, our tools are Swift, Objective-C, Java, Kotlin, React Native, Cordova, Ionic, and PhoneGap.

Software Development - We focus on custom solutions that meet your business needs. We do not try to change your business to fit into a pre-built solution. Our expertise is in open-source technologies. We are your ideal choice if you want a trustworthy and reputable company to build or maintain your applications. 

UI/UX - We're passionate about design from small sites to sophisticated applications, working with startups or multi-national corporations! We put our all into every project, making user-centric, functional products that everyone involved can be proud of.

DevOps - Tap into our on-demand DevOps expertise to achieve the cloud-enabled business transformation aimed at cost-saving, agility, speed-to-delivery, and innovation.

Blockchain - We offer end-to-end Blockchain development solutions to help clients grow in areas like Cryptocurrency, NFT Marketplace, Smart Contract, ICO, DeFi, dApp, etc.

Quality Assurance & Testing - Our manual testing, automation testing, and project assessment help us implement solutions that run without issues. Let no bug slip through our end-to-end testing process that involves certified QA analysts who work towards delivering error-free and superior-quality software applications to meet (and exceed) your expectations.

Certifications

ISO 9001:2015
ISO 27001
$25 - $49/hr
250 - 999
2012
Locations
India
Mani Casadona, East Tower, Unit No 8E4, 8th Floor, Action Area 2, New Town, Rajarhat, Kolkata, West Bengal 700156
+91-33-6799-2222
United States
548 Market St, San Francisco, California 94104
+1 619-331-2970
India
1st and 2nd Floor Sky Loft, Creaticity Mall, Survey No 190/192, Opp: Golf Course, Off Airport Rd, Shastrinagar, Yerawada, Pune, Maharashtra 411006

Focus Areas

Service Focus

20%
10%
10%
10%
10%
10%
10%
10%
10%
  • Software Development
  • Mobile App Development
  • Web Development
  • Web Designing (UI/UX)
  • E-commerce Development

Client Focus

55%
25%
20%
  • Medium Business
  • Large Business
  • Small Business

Industry Focus

10%
10%
10%
10%
10%
10%
10%
10%
20%
  • Advertising & Marketing
  • Automotive
  • Business Services

Capital Numbers Executive Interview

Mukul Gupta
Mukul Gupta
Founder
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Please introduce your company and give a brief about your role within the company?
Capital Numbers is a D&B accredited, ISO 9001 & 27001 certified global software solutions provider. We help CTOs, Software Founders, and Small Businesses get their software, web, or mobile apps done on time, using fully managed teams that integrate seamlessly into their projects.

Our clients include Reuters, Conde Nast, AppDetex, Equipo, University of Colorado, Credit Sesame, Grey Digital, and many more. We also partner with Digital Agencies and Development Companies worldwide as their white label development partner.

Headquartered in Kolkata, India, we're a company of 400+ specialists with sales offices and legal entities in the US and Australia. We are winners of several awards including -

➊ 2018 - Financial Times "Asia Pacific Top 1000 Companies."
➋ 2017 - Dun and Bradstreet "Leading SME of India."
➌ 2016 - Deloitte "50 Fastest-Growing Tech Companies."

I am the Founder and CEO of Capital Numbers and responsible for driving the growth, strategy, and attainment of the Company's vision and mission.
What was the idea behind starting this organization?
Back in 2012, digital operations and technologies were evolving rapidly, and two key trends were emerging. Firstly, the adoption of DevOps & Open Source frameworks was becoming popular within larger and more established organizations. Secondly, browsers and front-end technologies were rapidly evolving to deliver UI/UX experiences that were previously impossible.

We scouted the market place. We found that no one was focusing on this trend and hence took the plunge and started Capital Numbers to concentrate on this niche. We specialize in delivering innovative digital experiences using modern tech stack and development practices.
What is your company’s business model–in house team or third party vendors/ outsourcing?
We have a 100% in-house team of 400+ UI/UX Specialists, Developers, Testers, Business Analysts, and Project Managers working at our delivery centers in Kolkata.
How is your business model beneficial from a value addition perspective to the clients compared to other companies' models?
Production costs represent nearly 30% - 50% of any organization’s digital initiative. This money is usually spent on the creation of digital assets for a business and include websites, mobile apps, and software applications.

To fulfill this need, the first thing that any organization needs is an efficient workforce that can deliver. There are obvious financial and operational limitations to hiring and retaining local developers and agencies. The hiring of freelancers through online platforms can be a very daunting process even though there are plenty of great freelancers out there. Finding reliable freelancers is challenging, and there are apparent scalability issues. This is where we step in.

We offer “In-Demand Skills, On-Demand.”

Our business model is adequately equipped to cater to our client’s tech needs “on-demand” so that they don’t have to worry about expensive in-house staffing or getting stuck with unresponsive freelancers. We give our clients access to digital talent that they need when they need it. This helps our clients to decouple the production process from everything else and thus become genuinely strategic and solution agnostic. Our delivery teams, capabilities, and infrastructure are transparent and tailored to our clients’ specific needs.

Our model helps clients save 20% to 40% of the costs that they can spend on bigger marketing spends, or savings add straight to their bottom line. To ensure our clients can 100% trust us, we -

● Have Local offices around the USA, Australia, and India
● Focus on quality to ensure that our work is world-class and at par with the industry standards.
● Hire talented people who are treated well and compensated generously.
● Invest heavily in our people, our workplace, our tools, and ensure we are efficient and consistent.
What industries do you generally cater to? Are your customers repetitive?
We cater to a variety of industries and have clients in Non-Profits, Online Publishing, IT & Software Services, Healthcare, Finance, and Legal industries. We have nearly 90% repeat business.
Mention the objectives or the parameters critical in determining the time frame of developing a web app.
The time that your team will need to develop your web application will mostly depend on its complexity. By complexity, we mainly mean the number of custom features you want and how your web application will be used.

The simplest version of an application is a website where only one person manages content, no online payments are conducted, and no integrations are needed. An informational website about a company and its services is one such example. The complexity of a custom web application will increase as soon as you want to:

● Have complex workflows
● Allow all users to register and add their content
● Sell online
● Let others buy and sell on your website (C2C)
● Integrate your app with other applications, APIs, etc.
● Localize your website for multiple geographic locations

So the time taken for your web app will depend on specific and customized features you would want to incorporate into your website. The development process that your team follows may also have a significant impact on its timeline. For example -

● Do you expect detailed comments or documentation?
● What documents and materials must be produced before development, such as detailed specs, wireframes, etc.?
● Do you plan to follow specific coding standards like PSR or OWASP?
● Are you planning to write unit tests?
● What testing processes are designed before deployment to production?

Other organizational factors which may impact the timeline are:

● Familiarity with business domain
● Technology expertise
● Availability of reusable codes
How much effort in terms of time goes into developing the front-end and back-end of a web app?
Very roughly, about 80% of a project’s time is effectively spent on the development of back-end and front-end while the remaining 20% is spent on Testing, QA, Meetings, Documents, and other organizational processes.
What are the key parameters to be considered before selecting the right platform for a web application?
The first point that needs to be kept in mind is the type of web application you’re developing. A tech stack is a toolset for creating a web app, so you need to fully realize what you’re planning to build to pick the appropriate tools. Web projects can be of three types:

● Simple - These web applications are created with the help of out-of-the-box solutions, for instance, CMS software. Landing Pages and simple Online Stores are examples of such simple web apps.
● Mid-level - These apps have more custom functions than simple apps and are built with the help of frameworks, for example, large eCommerce Stores and Enterprise Apps.
● Complex - These web apps have lots of functionalities and integrations. They’re developed with the help of different web development technologies. They may be composed of several programming languages. Social Networking Sites, Healthcare Applications, and Fintech software are some of the examples of complex apps.

Then you need to answer the following questions -

● Do you need to process heavy loads like video processing, crawlers, scraping?
● Do you need low latency features like an online chat?
● Which 3rd party integrations are needed?
● How soon you need to go live? Shorter development cycles mean relying on more out-of-the-box solutions or choosing a solution with many 3rd party modules.
● Does the proposed framework has a large developer community?
● Is the proposed platform stable and well documented?
● Does the platform have any security issues?
● Is the platform scalable?
● Are there any licensing costs involved?

After these decisions, you can choose an appropriate front-end and back-end framework.
Which platform and technologies do you prefer to use in the development of your web apps?
We usually work with the following -

● CMS - WordPress, Drupal
● eCommerce - Magento, WooCommerce, Shopify
● Back-end - PHP (Laravel, CodeIgniter, Symfony), Python (Django, Flask), RoR, NodeJS, ASP.NET
● Front-end - HTML5, React, Angular, VueJs, TypeScript
● Mobile - iOS, Android, Hybrid
● Database - MySQL, NoSQL, DynamoDB, MongoDB, Firebase, RDS, SQL Server
● Cloud - AWS, GCE, Azure
● DevOps - Jenkins, Docker, Kubernetes, Nagios, NewRelic
Do you offer website design templates or customized website design, and do you have a responsive website design?
We offer a 100% custom web design service based on client needs, and these are typically responsive and tested across several browsers and different resolutions. In some cases, we do customize website templates purchased by the client from ThemeForest or other similar websites.
Which Content Management System do you prefer to use (Wordpress, Joomla, Drupal, etc)?
WordPress and Drupal. Limited availability is there on Joomla.
Do you provide website maintenance services?
Yes.
What are the key factors that you consider before deciding the cost of a web application?
The estimated effort required for web application is the main factor determining the cost of web development. The estimated effort, in turn, depends on the complexity and various other factors, as mentioned above.
What kind of payment structure do you follow to bill your clients? Is it Pay per Feature, Fixed Cost, Pay per Milestone (could be in phases, months, versions etc.)
This depends on the type of engagement model. We currently offer the following two models:

Fixed Price - It’s a perfect collaboration type for small short-term projects with a defined end product in mind. We provide an upfront detailed estimation along with a delivery schedule. We are also fully responsible for completing the project and meeting all the client needs within the agreed timeframe. There is an advance deposit of 20% - 50% depending on the project size, and the remaining payment is milestone-based, which is discussed and mutually agreed to upfront.

Dedicated team - This type of collaboration means that a client gets a team of developers that work exclusively for them for 8 hours a day, 20 days a month. Clients can personally interview and approve each candidate, which means they will be aware of what expertise and knowledge they possess. The client makes a monthly payment based on the number of people working for them. There is an advance deposit for 15 - 30 days of service, and then the client simply makes a payment on a specific date fixed for every month. Risk-Free trials are also offered for up to two weeks.
Do you take in projects which meet your basic budget requirement? If yes, what is the minimum requirement? If no, on what minimum budget you have worked for?
Yes. We have a minimum budget of $5000, but we do work on smaller projects in case it is an ongoing relationship, for example, in case of agencies or software companies subcontracting work to us.
What is the price range (min and max) of the projects that you catered to in 2018?
$5000 - $400,000.
Kindly share your feedback on how GoodFirms has been doing so far in increasing your visibility among potential clients.
We have only recently started actively promoting ourselves on GoodFirms, and it has been steadily giving us traffic and leads.

Capital Numbers Clients & Portfolios

Key Clients

  • Consumer Reports
  • Fundation
  • Thomson Reuters
  • HelloBar
  • Kargo
  • SDL
  • ST Engineering
  • Visit Days
  • Federated Auto Parts
  • Fidelity Payments
  • Payment Approved
  • Skillsz
  • HelloThinkster
  • CashPack
  • BrandWisdom
  • StoneAcre

Job Portal Application
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Job Portal Application
  • Job Portal Application screenshot 1
$10001 to $50000
10 weeks
Information Technology

This application helps to create resumes, gives tips on professional resume writing and vacancy notifications from trustworthy job boards.

Tech Stack: WordPress 4.5, WooCommerce, PHP, MySQL, jQuery, HTML5, CSS3

Equipo
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Equipo
  • Equipo screenshot 1
$10001 to $50000
14 weeks
Healthcare & Medical

This is a medical application. Hospitals and clinics can register themselves in this application and use it for maintaining and managing patient details. Doctors can also register in this application. 

Tech Stack: PHP, Symfony 2, Doctrine 2, Silex, MySQL, jQuery, HTML5, CSS3

Cab Booking Mobile App
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Cab Booking Mobile App
  • Cab Booking Mobile App screenshot 1
$0 to $10000
8 weeks
Transportation & Logistics

The job involves creating a cab booking mobile application. The APIs in the application is created using the Laravel Framework.

Tech Stack Used: Laravel Framework

Vogue India
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Vogue India
  • Vogue India screenshot 1
$0 to $10000
8 weeks
Advertising & Marketing

Vogue India is a fashion magazine brand and it is the Indian counterpart of the popular magazine Vogue. The website showcases and focuses primarily on the latest fashion trends in India in terms of various fashion categories like clothes, accessories and many more. The purpose of this site is to attract the user to subscribe to Vogue magazine issues and their newsletters.

Tech Stack: WordPress, jQuery, HTML5, CSS

Online Classifieds Advertising Site
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Online Classifieds Advertising Site
  • Online Classifieds Advertising Site screenshot 1
$0 to $10000
12 weeks
Business Services

This app is a full PWA site built in Vue.js. It is primarily built on Vuex for state management. Vuex is very useful to hold all-state of this application. There are two types of signups (User, Premium user). As per the role, the user can view different sections of this application (e.g. The only premium user can create their own store and list down their product and service that he/she wants to sell public). The user can globally create their own product range and service for sale. All users can set the offer and discount.

Tech Stack: Vue.js, Vuex, PWA, JavaScripts, HTML5, CSS3, ES7, ESLint, Webpack, Laravel, MySql

Cryptocurrency News Portal
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Cryptocurrency News Portal
  • Cryptocurrency News Portal screenshot 1
$0 to $10000
2 weeks
Financial & Payments

This Plugin fetches cryptocurrency information from various Crypto exchange like gdax.com, kraken.com, binanace.com, bittrex.com, etc. It then stores them into the local database and posts them directly to Twitter and Facebook.

Tech Stack: Wordpress, API, HTML5, CSS

GQ India
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GQ India
  • GQ India screenshot 1
$10001 to $50000
20 weeks
Travel & Lifestyle

GQ India is basically men's fashion magazine. The website showcases and focuses on the latest fashion trends in India and the world in terms of various fashions related to men. The purpose of the site is to attract users to subscribe to magazine issues and their newsletters.

Tech Stack: Wordpress, jQuery, HTML5, CSS

Life and Health Insurance Marketing Application
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Life and Health Insurance Marketing Application
  • Life and Health Insurance Marketing Application screenshot 1
$100001 to $500000
52 weeks
Insurance

This application is for Life & Health insurance. Here user can register as an agency or user itself. There are different types of plans. According to that user, can access into the system. In admin section there are three types of users i.e Super Admin, Channel Admin, and Subchannel Admin.

Tech Stack: PHP, Laravel 5.6, MySQL, JavaScript, jQuery, HTML5, Saas / Scss

School Management System
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School Management System
  • School Management System screenshot 1
$10001 to $50000
26 weeks
Education

This application is a complete set of management system where super admin can add any students, teachers, read-only teachers, print users, school admin, etc. Students can read online e-books, complete assignments, ask teachers. Teachers can create assignments, write any books for the students, and can see the class details as well. Admin can also approve, create new users and role, etc.

Tech Stack: React.js, Node.js, PostgreSQL

Capital Numbers Reviews

4.8 48 Reviews
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  • Software Development
  • E-commerce Development
  • Mobile App Development
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diana

Great company!

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I started working with Capital numbers assisted by Sasanka Banerjee first just to do a refresh on our website design and later little by little we have continued to work and improve all aspects of our site to have it at its best! Thank you so much for your help!

What service was provided as part of the project?

E-commerce Development

Joseph

Web site deplo

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The project manager that supported my project was absolutely brilliant but the over company structure still need more improvements in term of professionalism, timescale and documentation.
However, there are trusted and I would recommend them to anyone

What service was provided as part of the project?

Software Development, Web Development

Caleb Mciver

Spinz Music App and Website Development

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  • Schedule & Timing
  • Communication
  • Overall Rating

Project Detail

$50001 to $200000

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Review Summary

Capital Numbers has been doing an amazing job in developing our music app. It has so many different features but they handle everything extremely well. They are great at communication and are very accommodating. I would highly recommend this company to anyone looking for phenomenal app and website development.

What service was provided as part of the project?

Web Development

What is it about the company that you appreciate the most?

Their ability to execute ideas

What was it about the company that you didn't like which they should do better?

They have a great system in place and I don't see much room for improvement

Tien Chiu

Did a great job building a Javascript app for me!

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  • Schedule & Timing
  • Communication
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Project Detail

$0 to $10000

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I needed a Javascript app for my online course. They did a great job of designing the UI and building it for me, much faster than my previous developer was able to!

What service was provided as part of the project?

Web Development

What is it about the company that you appreciate the most?

Good at communication and coordination, fast delivery

What was it about the company that you didn't like which they should do better?

Very happy with their work

Paul Braun

A dependable part of our team

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Review Summary

We are very pleased with our partnership with Capital Numbers (CN). After having had several (all) bad experiences with outsourcing, we find CN gets it right.

They offer a trial period where you can swap out to a new staff personnel, if the current one is not working out. This is reassuring when getting started, even though we never used it.

Another nice feature of working with CN, is that a manager is included with your staff hires, to make sure things are running smoothly. After the first few weeks, the staff and the management is working smoothly for us, we barely notice the manager. Anyone who manages knows this is how it is supposed to be: manage things perfectly, you eventually become almost invisible!

The staff we currently use, a developer and a graphic designer are experienced and reliable. Both perform their tasks efficiently and correctly. Even during the most recent cyclone, they found ways to stay in contact, and work as much as humanly possible without regular/reliable electricity or internet services. This shows outstanding integrity, and dedication to getting the work finished.

We highly recommend Capital Numbers.

What service was provided as part of the project?

Web Development

Nathan Bailey

Excellent service

Rating Breakdown

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  • Schedule & Timing
  • Communication
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Project Detail

$10001 to $50000

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We first reached out to Capital Numbers over a year ago and have been super impressed by the quality of the work from our assigned expert in Anir. The whole process has been seamless and they have been more than happy to work into our systems. Other companies tend to want you to use their messaging systems or a ticket system but we have Anir working in our Slack and Monday account. Couldn’t recommend Capital Numbers higher.

What service was provided as part of the project?

E-commerce Development, Web Development

What is it about the company that you appreciate the most?

Ease of billing and allowing us to work direct with the team member assigned to us

What was it about the company that you didn't like which they should do better?

Nothing

Sathvik Gaddam

Greate team and excellent service

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Capital Numbers has a great team. They provided us end to end support on our project. They are always on time and delivered result beyond our expectations.

What service was provided as part of the project?

Web Development

Nikoan Johnson

Great service providers

Rating Breakdown

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  • Schedule & Timing
  • Communication
  • Overall Rating

Project Detail

$0 to $10000

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Review Summary

I was looking for a development company to undertake a few fixes on our company site. Capital Numbers and Arghadip (Project Manager) were very helpful seeing the project to completion.

What service was provided as part of the project?

Web Development

What is it about the company that you appreciate the most?

They were very thorough and exhaustive in their approach. They insured that the project got of to a great start and the deliverables were clearly understood and defined.

Ryan Davies

Excellent Work

Rating Breakdown

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  • Schedule & Timing
  • Communication
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Project Detail

$0 to $10000

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I have used Capital Numbers on a few projects in the couple of years and they have delivered every time. I have a number of projects later this year, which they will be involved in.

What service was provided as part of the project?

Mobile App Development, Web Development

Parina Daswaney

Review of Capital Numbers

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  • Schedule & Timing
  • Communication
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Project Detail

$0 to $10000

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I had an amazing experience with Capital Numbers. I wanted to completely redesign my website and the team was amazing in helping me achieve this goal They were able to make all the changes and make sure my website was clean, professional looking, pleasing, and easy to use. They were so patient during the process and constantly kept me in the loop. They also charged a fair price for the process. I would highly recommend you to use their service.

What service was provided as part of the project?

Mobile App Development

What is it about the company that you appreciate the most?

They made all the changes and were so patient.

What was it about the company that you didn't like which they should do better?

They were amazing.

Eugenia

Capital numbers

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  • Quality
  • Schedule & Timing
  • Communication
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Project Detail

$0 to $10000

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Review Summary

They been really communicative and always trying to end the task as soon as they can.

What service was provided as part of the project?

Web Development

What is it about the company that you appreciate the most?

be able to contact them at any time

What was it about the company that you didn't like which they should do better?

at the beginning it was communication, nowadays we are doing really well

Holden Cattoni

Amazing work and value

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  • Schedule & Timing
  • Communication
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$0 to $10000

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We had an outstanding experience with capital Numbers. They are very professional, easy to communicate with and very efficient. I would recommend them to anyone looking for a website developer. I look forward ti working with them again in the near future.

What service was provided as part of the project?

Mobile App Development, Web Designing (UI/UX), IT Services

What is it about the company that you appreciate the most?

they really cared about producing a quality product

What was it about the company that you didn't like which they should do better?

They could have completed the project a little sooner but I am not unhappy with the development time at all.

Steven Dornonville De La Cour

Saas Platform

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I'd cycled through between 15-20 other vendors before running with Capital Numbers. It's been the best decision we've made on our project build - they're extremely professional, easy to deal with, experienced, and reliable. I cant recommend them enough.

What service was provided as part of the project?

Software Development, Digital Marketing

What is it about the company that you appreciate the most?

Their professionalism, ability, and reliability

Donald A Klein

New Features on PromotingPays.com platform

Rating Breakdown

  • Quality
  • Schedule & Timing
  • Communication
  • Overall Rating

Project Detail

$0 to $10000

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Review Summary

Capital Numbers quickly and efficently implemented, tested, and launched key new features for my website. They are a pleasure to work with.

What service was provided as part of the project?

Mobile App Development

What is it about the company that you appreciate the most?

Efficiency and cost

What was it about the company that you didn't like which they should do better?

Communication during USA business hours.

DeVon Favors

Capital Numbers provides Capital Retur

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As a startup I struggled with building the company website while working full time and managing family time. Capital numbers team saved me time and money by providing modern technical professionals that delivered an exceptional return on investment.

What service was provided as part of the project?

E-commerce Development, Digital Marketing