Our industry experts identified the top-performing Eastern European software development companies developing cutting-edge solutions that generate business growth. Filter listings by size, reviews and cost to choose the best agency for your brand.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
Product Design & Engineering for Banks, Fintechs, and Enterprise Platforms
Alty is a 4x Red Dot-winning product design and engineering partner for fintech and banking, with clients including Monobank, Raiffeisen, and Halyk Bank. Its work reaches 60M+ users across 40+ markets. The agency is best for banks and fintech companies needing strategy-led product development...
Top Services:
- Mobile App Development
- Design Services
- Software Development
- Web Design
- UI/UX Design
- Show more
- Location
- Cascais, Portugal
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $75/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 22 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAlty Services
Data sourced from the agency's DesignRush profileVISA Mastercard Raiffeisen Monobank GTBank PrivatBank ABA Bank CBH Bank Renovite Corezoid
Alty Reviews & Testimonials

Mobile App Development Review from Ewa Koltunczyk (Karabon)
I recently had the pleasure of working with Alty to develop our mobile app. We needed a developer who was able to translate my vision and provide technical guidance. The experience has been nothing short of outstanding. From the initial consultation to the final product, Alty's professionalism, expertise, and dedication have exceeded my expectations. Alty has demonstrated a deep understanding of mobile app development and was willing to go the extra mile. Their ability to translate my ideas into a seamless, user-friendly, and visually appealing app is truly impressive

Mobile App Development Review from Adam Kubas
Alty did excellent work for our department. The team prepared a high-quality and easy-to-understand development roadmap for Virtual Academy of Bioinformatics. Their positive attitude and willingness to learn made them a pleasure to work with. Overall, I highly recommend Alty for any development role. They have the skills, dedication, and professionalism to excel. Thank you for developing our app.

Web Development Review from Rajesh Kasturirangan
The team at Alty is indeed filled with tech engineers and assiduous individuals with excellent software development skills! The end product work had minimal bugs. Alty has exceptional communication skills, identifies top talent, and goes above and beyond to ensure a smooth development.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsAI/ML Consulting and Development Company
Alltegrio specializes in Custom AI Solutions Development . Generative AI, Machine Learning, Computer Vision, AI Assistants Development, Natural Language Processing, OCR Data, Data Annotation all tailored to your unique business needs...
Top Services:
- AI Development
- Software Development
- Big Data Analytics
- IT Services
- Business Consulting
- Show more
- Location
- Delaware City, Delaware
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 20 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAlltegrio Services
Data sourced from the agency's DesignRush profileReal Estate Retail Healthcare Fintech Banking Sport Insurance
Alltegrio Reviews & Testimonials

Big Data Consulting Review from Oksana Vobiachenko
They worked on providing us with a comprehensive data architecture designed for scalability and security. A BI dashboard was created that allowed us to visualize key metrics from all our clients in one place, making it easier for us to get a comprehensive overview of our operations. They also set up real-time reporting capabilities that helped us respond to client needs faster and more efficiently. On top of that, Alltegrio recommended optimizations to our existing data pipelines, ensuring better data quality and improving decision-making. They also provided hands-on training for our internal team, ensuring we could manage and leverage the system without constant external support.

Big Data Consulting Review from Yannick Berg
Data Science and Analytics: Implemented models to enhance data-driven insights.Data Annotation: Optimized annotation processes for training models.Data Monetization: Developed strategies for extracting value from data assets.

Machine Learning Review from Romit Karmakar
To develop an AI-powered trading bot capable of analyzing market data, identifying trading opportunities, and executing trades autonomously to maximize returns and minimize risks.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Solveit
Award WinnerRecipient of a Best Design Award for outstanding work.100% Focused on Apps
We design and develop top-rated mobile and web apps for startups and SMEs. E-commerce, Healthcare, Marketplaces, and more. Our clients rate us for 5 out 5 - check out why!...
Top Services:
- Mobile App Development
- Software Development
- Web Design
- Design Services
- AI Development
- Show more
- Location
- Warsaw, Poland
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 32 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSolveit Services
Data sourced from the agency's DesignRush profileHemie.se RVista Lifepal AB Gumb Jabal MyRaceData JobJob.md Burger King OIIO Leviosa
Solveit Reviews & Testimonials

Staff Augmentation Review from Mitya Smusin
Solveit managed our comprehensive eCommerce project, developing a full-featured web platform with Node.js and React technologies. The agency also created a Flutter-based mobile app for seamless data synchronization across iOS and Android devices. We were thoroughly pleased with Solveit's expertise and adherence to deadlines. It provided timely updates and communicated openly about our project's status. Solveit's proactive approach and transparency were exceptional, particularly during the staff augmentation process, where the agency efficiently matched us with qualified candidates and facilitated a smooth onboarding. We were satisfied with Solveit's high-quality work and exceptional support.

Design Services Review from Anna Harissis
They have an incredibly hardworking team at affordable pricing. SolveIt has built the app earlier than expected, and they continue to complete new tasks within the client's budget and timeline.

iPhone Review from Gabriel Sabadin
We engaged SolveIt to develop a minimum viable product (MVP) app, including a user-friendly iOS design, an artificial intelligence (AI) model, and a monetization strategy while ensuring General Data Protection Regulation (GDPR) compliance and preparing for future integrations. Despite a tight deadline, SolveIt delivered the app on time and efficiently handled beta-testing within three months, allowing us to gather feedback and launch successfully. We acquired our first 1,000 users within a month of launching the app. SolveIt's team communicated effectively, addressed issues proactively, and maintained a high level of autonomy, bringing diverse expertise that greatly benefited our project. We appreciate the agency's dedication and professionalism.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsConnecting you with expert developers to bring ideas to life
Mitrix Technology is a software development and consulting company. Since 2017, weve provided access to senior software engineers, helping you scale through dedicated teams, expert consultations, and efficient development practices...
Top Services:
- Software Development
- eCommerce Development
- Mobile App Development
- UI/UX Design
- Staff Augmentation
- Show more
- Location
- Warsaw, Poland
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 15 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMITRIX Technology Services
Data sourced from the agency's DesignRush profileWOLT VIVATUM SYNAPSE HEALTH UQUALIO ARCTIC ADVENTURES TICKET VAULT ALPHABOT ACADEMIC GATEWAY VIAPOINT PORTAGE CYBER TECH
MITRIX Technology Reviews & Testimonials

IT Services Review from Anna Krebs
Mitrix Technology partnered with Creative IT to enhance an existing case management system. They augmented Creative IT's team with a Frontend Angular developer, who contributed to a range of improvements, including streamlined navigation, integrated case addition, enhanced search functionality, document viewing capabilities, trial schedule tracking, planner establishment, scheduled event edit monitoring, code library selection, and application structure shaping. These enhancements resulted in a significantly improved case management system that is more performant, usable, and maintainable. Mitrix Technology's expertise, team augmentation approach, and client-centric focus made them a valuable asset to the project. We strongly recommend Mitrix Technology as a reliable and innovative IT services provider to businesses seeking to achieve their software development goals.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsPowering the IoT Revolution
CitrusDev is a team of experts with a general focus on the Internet of Things (IoT) project development. Our team's key points of interest are Smart Home, Smart City, Smart Farm, Automotive, Healthcare, and Indoor navigation domains. We cover the Hi-tech, Retail, Fintech, and Education industries as well...
Top Services:
- IoT
- Web Development
- Mobile App Development
- Wearables
- WordPress Website Design
- Show more
- Location
- Kyiv, Ukraine
- Number of Employees
- Under 49
- Average Hourly Rate
- $35/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 7 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCITRUSDEV Services
Data sourced from the agency's DesignRush profileDHL GoGo Band Inc SmartFarm
CITRUSDEV Reviews & Testimonials

Web Development Review from Vadym Hryshchenko
We worked with Citrus Dev on website developing for our NGO, and the experience was outstanding. The project was delivered on time, within budget, and the quality exceeded our expectations. Communication was smooth and efficient throughout the entire process, making collaboration easy and productive. We highly recommend this team for their professionalism and exceptional work.

Mobile App Development Review from Mark Joy
Dima S. responded to one of my job postings on Upwork for creating an audio-related application. He explained the estimated cost of developing such an app, and advised that it would be much more costly than I had anticipated. I was not familiar at all with the costs associated with developing apps, so his explanation was very helpful.He saved me money by going above and beyond to research existing apps that provided similar functionality to the requirements I was seeking. He also found instructions for using native Apple settings for audio that would solve my problem. The settings he found even allowed import of an audiogram that I had gotten at the audiologist for my specifc problem.Though he did not end up developing an app for me, Dima saved me a ton of money by spending his time to research possible existing solutions which I had not found during my own search.I would highly recommend Dima for his level of care for projects and his customers.

WordPress Website Design Review from Anna Abdulova
Working with CitrusDev was very comfortable and convenient.CitrusDev developed a website (WordPress) for me with the services I provide to my clients.Since I have a shortage of time, it was important that the team did not need my constant involvement in the process.After discussing all the details, we met a few times to decide on further actions and make corrections.The work format was convenient and clear. And most importantly, it was flexible.The team responded quickly when changes were needed and gave advice for better results.I am happy with our joint project and want to thank CitrusDev for their professionalism and ease of work.Thank you.And I recommend them.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
COAX Software
VerifiedVerified by the DesignRush team for authenticity and credibility.Smart software solutions for travel, transport & logistics
COAX Software delivers smart software solutions for travel, transport & logisticsconnecting strategy, delivery, and growth to ship reliable, scalable, ROI-positive software...
Top Services:
- Web Development
- Web Design
- Mobile App Development
- eCommerce Development
- UI/UX Design
- Show more
- Location
- Chicago, Illinois
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 8 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCOAX Software Services
Data sourced from the agency's DesignRush profileAlertpoint Site Survey SmartBat Taxod MICRM Peercents TRI Timesheets CareZapp
Devoted to excellence
Devōt is a software development company working on web and mobile applications, based in Zagreb, Croatia. We strive to keep interesting clients but also to use our in-house knowledge, experience, and vision to create our internal products. We are specialized in the services of consulting, software...
Top Services:
- Software Development
- AI Development
- Staff Augmentation
- Location
- Zagreb, Croatia
- Number of Employees
- 50 - 99
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDevōt Services
Data sourced from the agency's DesignRush profileRectangle Health SAPRO Trainline Expedia Vrbo Switcher EQUESTRIAN BirdDog Hello Hunter ELS
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