1. Toobler

Founded in 2008, Toobler is an innovative software development company. The company has a robust team of seasoned developers that ensures quality work. They offer a range of services that includes consultation and post-deployment maintenance.
Toobler is one of the best open-source app development companies currently in the market. They have relevant prior experience working with open-source frameworks and related projects. The team not only ensures a seamless development experience but also offers tailored solutions.
Be it building an app from scratch or refining an existing one, Toobler's expertise ensures your vision transforms into a quality-driven, open-source reality.
Core Services Offered by Toobler
Employees | Average Hourly Rate | Locations |
---|
50 - 249 | $25 - 49 per hour | US, UK, Canada & India |
Transforming App Development Projects Undertaken by Toobler
Toobler created a one-stop solution to detect counterfeit bills by building a responsive web application. The app has access to 197+ countries and their currencies and foreign exchange regulations.
‘The Hotel’ is one of the revolutionary hospitality management apps created by Toobler. The app was designed after vetting the issues faced by hotels. The app is serving the hospitality management industry by guaranteeing ultimate experience and profitability.

2. Angler

ANGLER Technologies is another leading open-source app development company with a global presence. They offer quality software solutions tailored to the diverse needs of various industries.
The professionals at Angler believe in delivering results-driven solutions with the help of cutting-edge technology. The company is known for accelerating the growth of the business by offering a rich user experience.
Core Services Offered by Angler
Web Application Development
Testing services
Rich Internet applications
Mobile App Development
E-Commerce
Digital Marketing Services
Employees | Average Hourly Rate | Locations |
---|
50 - 249 | NA | US, UK, UAE & India |
3. Systematix Infotech
Systematix Infotech is another acclaimed software development firm based in India. The company specializes in providing custom solutions and services across industries.
The developers at Systematix have expertise in developing web-based applications using various technologies. These include HTML5, Angular JS, Node JS, and more. With a team of experienced developers, they ensure that their clients get the best solutions within the decided timeline.
Core Services Offered by Chetu
Employees: 50+
Avg Hourly Rate: $25-50/ hour
Locations: US, India
4. Chetu
Chetu is also a renowned name in the open-source app development space. The firm has experience and expertise in developing custom apps for an array of platforms.
Chetu's team consists of certified professionals who strive to create solutions that fit the exact needs of their clients. With an established track record in open-source app development, Chetu provides quality services.
Core Services Offered by Chetu
Application Development
Custom Software Services
App Migrations & Upgrades
Product Lifecycle Management (PLM)
Quality Assurance (QA Testing)
Software Security
Employees | Average Hourly Rate | Locations |
---|
1,000 - 9,999 | Undisclosed | US, UK, & India |
5. Fingent

Fingent is yet another acclaimed name in the open-source app development sector. The company has developed a wide range of apps for different industries, such as healthcare, finance, retail, education, and more.
They are equipped with a team of experienced professionals with expertise in technologies such as AngularJS, React JS, and Node JS. Fingent provides highly reliable and tailored solutions that are secure and robust for their clients.
Core Services Offered by Fingent
Employees | Average Hourly Rate | Locations |
---|
250 - 999 | $50 - 99 per hour | US, Australia, UAE & India |
6. Hidden Brains
Hidden Brains is a premier custom software development company headquartered in India. Beyond development, they offer consulting services to help businesses adapt new technologies and improve their IT structure. They are known to provide innovative solutions across industry verticals and promise to challenge the limits.
Core Services Offered by Hidden Brains
Employees | Average Hourly Rate | Locations |
---|
250 - 999 | $25 - 49 per hour | US, Australia, UAE & India |
7. Cabot

Cabot Technology Solutions is another prominent open-source app development company. Established in 2006, Cabot's inception was fueled by the desire to craft top-notch, innovative technological solutions.
At its core, Cabot Technology Solutions thrives on a team of adept engineers well-versed in myriad technologies. With a tailored approach, they are redefining standards in open-source application development and IT consulting services.
Core Services Offered by Cabot
Employees | Average Hourly Rate | Locations |
---|
50 - 249 | $25 - 49 per hour | US, Canada & India |
8. Minuscule Technologies

Founded in 2006, Minuscule Technology is a software development company based in the US. Their team of experienced engineers are well-versed in a variety of technologies. This includes open-source app development frameworks.
They are committed to customer satisfaction above all other metrics and offer end-to-end support.
Core Services Offered by Minuscule Technologies
Employees | Average Hourly Rate | Locations |
---|
50 - 249 | $150 - 199 per hour | US |
9. Developers.DEV

Developers.DEV is a software development outsourcing company. Their team of developers is experienced across any programming languages and frameworks, including open-source. Whether you want to build software from scratch or need an extra helping hand in completing your development, Developers.DEV can help you with it.
Core Services Offered by Developers.DEV
Employees | Average Hourly Rate | Locations |
---|
1,000 - 9,999 | $25 - 49 per hour | US, Australia, Singapore, UAE, Canada & India |
10. Red Hat

Red Hat is a major open-source software solutions provider. Founded in 1993, the company has grown to include tens of thousands of customers spread across all corners of the globe. The company has a strong commitment to open-source technologies, which helps drive innovation across the industry.
They provide open-source solutions that help organizations to remain agile, innovative, and secure. With an extensive portfolio of products and services, they offer software solutions for all types of businesses.
Core Services Offered by Red Hat
Employees | Average Hourly Rate | Locations |
---|
2000+ | Undisclosed | US, Australia, UAE & India |
11. Konstant Infosolutions
Konstant Infosolutions is a well-known software development firm based in India. They offer robust and reliable solutions for different industries. The company has expertise in providing the best solutions using technologies such as PHP, HTML5, Angular JS, NodeJS, and more.
Core Services Offered by Konstant Infosolutions
Employees | Average Hourly Rate | Locations |
---|
50 - 249 | $25 - 49 per hour | US, UK, UAE & India |
12. Girnarsoft

GirnarSoft is a leading IT company that offers open-source app development services. They have a team of highly skilled professionals who are experts in different technologies. And they focus on providing tailored solutions that meet customer needs.
Also, they aim to offer excellent customer service and give importance to customer satisfaction.
Core Services Offered by Girnarsoft
Employees | Average Hourly Rate | Locations |
---|
50 - 249 | Undisclosed | US, UK, UAE, & India |