There are many custom software development companies in the world. But how to find a reliable partner? The one that has the tech and domain expertise you need, fits your budget, and which you can trust? So, we've researched top custom app development companies, their profiles, available talent pool, and experience. To help you navigate the list, we've grouped them according to geolocation: Europe, Latin America, and Asia. So, here are 25 vendors which can help you with software engineering.

How did we select the top custom app development companies?

When selecting your potential nearshore custom app development firms, we have considered these key factors:

  • The location of the company;
  • Its portfolio of custom app development projects and client references;
  • The size of the company and its years in operation (200+ professionals and 10+ years in business).

Additionally, we have taken into account industry awards such as Global Outsourcing 100 by IAOP, GSA UK, and Software 500. To gather information about these companies, we have browsed their LinkedIn accounts, websites, and portfolios. So, let’s dive in!

Custom app development companies in Europe

1. N-iX

N-iX is a European software development company with 21 years of experience in the market. The company has over 2,200 IT professionals on board. During these years in the market, this tech vendor has successfully assisted over 160 clients in developing and expanding their capabilities in Big Data, Data Science, BI, cloud, embedded, enterprise VR, and DevOps, among other areas.

Custom software development is the company’s core expertise, so the vendor can help you with a wide range of services, including creating a solution from scratch, modernizing your existing system, or solving a specific business issue.

The company has established long-lasting partnerships with firms from the USA, UK, Germany, the Nordic countries, and beyond. Headquartered in Valletta, Malta, N-iX maintains offices and delivery centers across Europe, as well as in Latin America (Medellin, Colombia) and the US.

N-iX company information

2. STX Next

Headquartered in Poznan, Poland, the company provides custom application development services and cross-platform mobile app solutions to clients across all industries using Python Django, Twisted, ReactJS, React Native, and other technologies.

STX Next company information

3. Netguru

The company offers custom application development services, such as product design, web development, mobile application development, tech support, and Machine Learning. This vendor cooperates with businesses of all sizes. When it comes to industries, they specialize in finance, real estate, healthcare, education, and others. 

Netguru company information

4. Jelvix

The company has expertise in all major industries, such as fintech, logistics, healthcare, and others. The company’s custom software development covers all stages. It includes market analysis, UI/UX design, testing, and support. 

Jelvix company information

5. Developex

Based in Kyiv, Ukraine, this representative of custom app development firms can help you with mobile app development, web development, application testing, and more. The vendor provides custom application development services for gaming, consumer products & services, IT, and other industries. 

Developex company information

6. CHI Software

This vendor has been operating in the tech market for around 17 years. They have representatives and development centers in different parts of the world, including the USA, the Republic of Cyprus, Ukraine, and Japan. The vendor specializes in cloud computing, IoT, and Big Data. 

CHI Software company information

7. Beetroot AB

It is a company that works with businesses of all sizes and caters predominantly to education, healthcare, and automotive industries. The company’s engineers develop both native and cross-platform solutions. Some of the service areas they cover are software development, operations, art, and design. They operate in Europe exclusively, namely in the countries of Sweden, Bulgaria, Ukraine, and Poland. 

Beetroot AB company information

8. еvozon

Straight from Transylvania, this end-to-end software development provider offers services to businesses in various industries, such as telecom, healthcare, ecommerce, and others. Its engineers can help you create the concept and architecture of your solution, design, and test it, as well as support it afterward.

evozon company information

9. Britenet

On par with custom software development, this vendor can help you with BI and big data consulting, IT-managed services, and staff augmentation. With 18 years of experience, they have delivered high-quality solutions for retail, finance, manufacturing, education, and other industries. 

Britenet company information

10. Q agency

Apart from custom app development, they offer services, including business analysis, product strategy, quality assurance, UI/UX design, data service, and solution architecture. Their team of over 300 professionals ideates, builds, manages, and scales their digital solutions. 

Q agency company information

11. Brocoders

This vendor is also Europe-exclusive, with offices in Tallinn, Estonia, and Sumy, Ukraine. Custom app development is their primary specialization, but they can also help you with AI consulting and development, as well as IT staff augmentation and mobile app development. 

Brocoders company information

12. Magora

This is an experienced mobile, web, and software development company with offices in the UK and other countries. Its professionals develop digital products, including mobile apps, websites, and web applications.

Magora company information

13. Systango

Headquartered in London, UK, it is a software development vendor that offers IT and product engineering services mostly to small businesses. The company specializes in mobile app development, web development, BI, IoT, and many other services. Their industry focus is finance and legal. 

Systango company information

14. Instil

This is a Belfast-based vendor that helps its clients with cloud consulting and SI, enterprise app modernization, cloud migration and modernization, digital transformation, product engineering, and more. They cooperate mostly with enterprise-level clients in finance, telecom, and retail. 

Instil company information

Custom app development companies in Latin America

15. Flux IT

Apart from custom app development, they can help you with web solutions implementation and mobile app development. Throughout their 14 years of experience in the global tech market, they have worked with businesses in finance, healthcare, supply chain, logistics, telecom, and other industries. 

Flux IT company information

16. CodeNinja

Their portfolio of services includes staff augmentation, software development, cloud, data, and AI. Established in 2014, the vendor operates across three regions, such as the Americas, the Middle East, and Southeast Asia. With around 250 experts on board, they have completed projects for finance, healthcare, ecommerce, and other industries. 

CodeNinja company information

17. Octobot

The industry specialization of this vendor is retail, business services, advertising and marketing, as well as government. Apart from custom app development, they can help you with web development, IT staff augmentation, mobile app development, as well as UI/UX design. 

Octobot company information

18. Nextly

With over ten years of experience, they have completed projects for such industries as advertising, marketing, arts, entertainment, music, education, financial services, government, and others. They offer custom app development, IT staff augmentation, and web development. 

Nextly company information


Headquartered in La Plata, Argentina, this representative of custom app development companies has established its presence in Latin America only. They have developed custom solutions for finance, real estate, supply chain, and other industries.  

NaNLABS company information


This is an outsourcing firm with experience in custom software development, quality assurance, software testing, as well as digital production. They work with businesses of all sizes, but most of their clients are midmarket companies. 

DNAMIC company information

Read more about top software development companies in Latin America 

Custom app development companies in Asia

21. Indium Software

This custom software development company delivers customer-centric solutions across application testing, BI, Big Data consulting, and custom application development. Their team of over 2K professionals develops solutions for ecommerce, finance, gaming, healthcare, real estate, and other industries. 

Indium Software company information

22. Daffodil Software

This Indian custom software development company cooperates with businesses of all sizes and develops web, mobile, and cloud solutions. Its engineers also provide continuous support and maintenance of the projects. 

Daffodil Software company information

23. Capital Numbers

This company offers the whole cycle of custom software development services. Apart from that, it specializes in the development of websites, web applications, portals with complex functionality, and custom mobile apps. 

Capital Numbers company information

24. Dew Solutions Pvt Ltd

This company specializes in custom software development services, mobile app development, web development, and more. The vendor provides services primarily to small businesses from ecommerce, education, and finance.

Dew Solutions Pvt Ltd company information

25. Clarion Technologies

Headquartered in Pune, India, this custom software development company cooperates mainly with small and midmarket businesses. The company’s areas of expertise are web application development, content management systems, ecommerce, mobility, software testing, IoT, and more.

Clarion Technologies company information

Why choose N-iX as your custom software development company?

  1. N-iX has established long-term strategic partnerships (5+ years) with businesses of varying sizes, including industry leaders and Fortune 500 companies. For over twenty years, N-iX has collaborated with a diverse range of American companies, starting with our initial client, the large tech company Novell, in 2003 to numerous prominent US industry leaders. Additionally, we maintain a substantial portfolio of clients from Europe and the UK.
  2. N-iX operates delivery centers across Europe and Latin America, providing access to a vast talent pool for your outsourcing needs.
  3. The global tech market has widely recognized N-iX's excellence: we have been listed among the top software development companies by Clutch, featured in the Global Outsourcing 100 by IAOP, honored at the GSA UK 2019 Awards, and ranked among the top software development companies by, among others. Furthermore, Software Magazine includes N-iX in its list of the world's 500 largest software companies.

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N-iX Staff
Erika Gutierrez Cardenas
Location delivery director at N-iX Colombia

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