Top 100 Cross Platform App Developers in Warsaw

Sigma Software Group is a software development & consulting partner with headquarters in Lviv, Ukraine, and offices in the USA, Sweden, UK, Canada, Israel, Singapore, UAE, Poland, Latin America, and Portugal. Founded in 2002, the company accounts for over 2000 employees, helping clients from startups to Fortune 500 brands with software product and custom solutions delivery, digital transformation, Big Data, AI/ML, AR/VR, IoT, web & app development services.

LeanCode is a software studio founded in 2016 and based in Warsaw, Poland. With more than 10 members in their team, they specialize in custom software, web, and mobile app development services for clients in the fields of education, transportation, and consumer products.

Iteo is a Poland-based digital product agency that specializes in mobile app development, web development, mobile platforms, frameworks and CMS platforms, programming and scripting, and UX/UI design. Established in 2011, the agency works with small, mid-market, and enterprise clients across a variety of industries including financial services, consumer products and services, and business services. The agency is comprised of about 25 specialists.

INVO Technologies is a software design an development company headquartered in Warsaw, Poland, with an office in London. Founded in 2016, the team of 8 specializes in web development, mobile app development and custom software development.

DevelopsToday is a software development company that was started in 2016 in Kyiv, Ukraine. With a team of just under 20, the company provides web and mobile app development to predominately small businesses in a range of industries.

mDevelopers is a software house that launched in 2010. Their team is headquartered in Warsaw and has offices in Czestochowa, Poland. They offer web development, UX/UI design, and custom software development.

Celadon is a mobile and web app developer headquartered in Warsaw, Poland; with offices in Kyiv, and Dubai. Founded in 2016, their team of over 100 employees specializes in mobile app development, custom software development, and web development. They work primarily with small and midmarket businesses; focusing on business services, education, arts, entertainment & music.

Andersen is an international custom software development company that, among other things, specializes in healthcare software development. Since its founding in 2007, the company has opened more than ten development centers and about ten sales offices worldwide. More than 2700 highly qualified specialists work on developing, customizing corporate IT solutions, web applications, and mobile applications. Andersen has completed over 950 projects and received hundreds of positive reviews from clients worldwide. Today the company is working on over 250 projects. Our technology stack includes .NET, C#, Java, Python, PHP, Node.js, TypeScript, Golang, C++, JavaScript, Angular, React.js, Vue.js, HTML, CSS, Java (Android), Swift / Objective C (iOS), React Native, and more. We also offer manual and automated testing, business and data analysis, UI/UX design, DevOps services, IT security management, and L1, L2, L3 support.

TeaCode.io is a Warsaw-based full-stack software development company that was founded in 2015. Their team of 12 specializes in custom software, web, and mobile app development. They also know their way around IoT and AI projects. They usually work with small and mid-sized companies and have so far completed many projects in fields of education, medical care, travel, security, communications, e-commerce, and more.

Yojji is a software development firm based in London with an office in Kharkiv, Ukraine. The firm, founded in 2017, has more than 35 employees and provides custom software development, web development, mobile app development, web design, product design, and application testing services. Yojji serves small and larger-sized companies in various industries that include financial services, business services, and health care & medical. 

Mobile Reality is a software development agency founded in 2016 with a team of 14. Based in Warsaw, Poland, the company specializes in web, custom software, and mobile app development services for small and midmarket firms. They mainly program using JavaScript and use both the frameworks React Native and NodeJS.

KitRUM is a software engineering company that was founded in 2014. The company is headquartered in Clearwater, Fla., with secondary locations in Krakow, Poland and Kharkov, Ukraine. They are made up of 49 employees. They specialize in AR/VR development, IoT development, and mobile app development. 

Deviniti is an IT company based in Wroclaw, Poland. The company, founded in 2004, has around 250 specialists who provide custom software development, mobile app development, web development, and cloud consulting & SI services. Deviniti serves midmarket and other-sized companies in various industries, including automotive, business services, and financial services.

Headquartered in Warsaw, Poland and with an office in Atlanta, GA, 10Clouds has built software for businesses worldwide since 2009. The team of 120+ focuses on web development, software development, and DevOps services for scaleups and enterprise clients.

They have launched mobile and web apps for startups and SMEs since 2016. Their clients appreciate the quality of the developed solutions and the way they work: fast, flexible, in-time, on-budget. Get a free consultation to get more details

Brainhub is a software development partner for startups, scaleups and enterprises with ambitious product development plans. Founded in 2014, Brainhub is a team of 95 experts in Node.js, ReactJS, .NET, TypeScript and React Native that helped 65+ fintech, edtech, martech, healthcare and gamedev companies scale their web and mobile app development. Recognized as one of the fastest growing companies in Europe by Financial Times, Deloitte and Forbes.

Movadex is a software development firm that has been offering custom software development, UX/UI design, and web development services to their small business and mid-market clients since 2017. Their 10 employees are based out of their offices in Kyiv, San Francisco, and Bern, Switzerland.   

 

Emfire is a CRM consulting and SI company. Their small team is based in Warszawa, Poland and offers CRM consulting and SI, custom software development, and IT staff augmentation. The firm was launched in 2022.

Finture, a custom software development firm, was founded in 2016. They are based in Warszawa, Poland and Farnham, United Kingdom and have a midsize team. Their services include custom software development, Artificial Intelligence, cloud consulting & SI, mobile app development, and more.

Powercode is a web development agency based in Kyiv, Ukraine founded in 2015. They are operated by a team of 66 who are experts in web, mobile app, and custom software development for clients ranging from startups to enterprises. They have experience working in industries such as financial services, business services, and IT. They are also familiar with working with platforms like Amazon, Linux servers, and Azure, among others.

Iterators is a software development company. The Warszawa, Poland-based firm was launched in 2013. The small team offers custom software development, mobile app development, ux/ui design, IT strategy consulting, and more.

Fively is a web development company based in Warsaw, Poland. Founded in 2018, they have 100+ employees specializing in full-cycle web app development for small and midsize businesses in eCommerce, FinTech, Real Estate, and HealthTech industries. Services include web development, cloud development, workflow automation, and system integration.

eTeam is a digital product agency founded in 2016 with a team operating in over 15 countries. Our services cater to a broad range of businesses, from VC-backed startups to the largest company in the world. eTeam excels in various fields, including Product Discovery, Web and Mobile Development, Software Transformation, Cloud & DevOps Solutions, Big Data/AI, and Tech Consulting. 

SENLA is a fast-growing software development company in 5 EU locations, founded in 2012. Our team of 600+ certified technical specialists and managers has large expertise in a full-cycle development from BA to maintenance as well as separate services like QA or UX Audit. We have successfully completed over 350 projects in FinTech, Healthcare, Manufacturing and other industries.

Founded in 2018, 300.codes is a development firm. Their team of around 5 employees is based in Warsaw, Poland, with an additional office in Lublin, Poland. They focus on custom software development, web development, and product design.

Cogniteq is a professional software agency based in Vilnius, Lithuania, with an office in Warsaw, Poland. The agency, founded in 2005, has more than 80 employees and provides custom software development, mobile app development, web development, IT staff augmentation, and IoT development services. Cogniteq serves small and mid-market companies and institutions in the education; financial services; medical; automotive; GPS, navigation, & GIS; IT; and e-commerce industries. 

GP Solutions is a software development company headquartered in Munich, Germany, with  that specializes in web development, custom software development, and web design. Founded in 2002, the company builds custom web applications to help clients realize their business goals. A company of just less than 150 employees, GP Solutions works with enterprise and mid-market outfits in the IT and hospitality industries, offering end-to-end solutions that increase traffic, drive sales, and connect with consumers. 

IT staff augmentation company Commoditech was founded in 2012. The firm provides IT staff augmentation, custom software development, mobile app development, HR services, and more and has a midsize team.

Orangesoft is a mobile application development firm with offices in the US and Poland. Founded in 2011, Orangesoft consists of 80+ team members who specialize in mobile & web app development. The firm also offers application management and support services to its clients.  

Mobile application development firm Demjee was launched in 2020. They are based in London, United Kingdom and have a small team. Their services include mobile app development, ux/ui design, web design, and custom software development.