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Leobit is a full-cycle . NET, AI, and web application development provider for technology companies and startups primarily located in the US, EU, and the UK. We have representative offices in Austin, TX (USA), Tallinn (Estonia), Kraków (Poland), London (UK) and the development center in Lviv (Ukraine) with 170+ talented software engineers, architects, QA experts, and UI/UX designers. Our Achievements:Microsoft Solutions Partner - Digital & App InnovationISO 9001:2015 and ISO 27001:2022 CertifiedISTQB Gold PartnerTop . NET Developers in 2025 by ClutchCustomer Service Department of the Year in 2025 by Stevie® AwardsLeobit has successfully delivered over 150 well-designed and well-factored web & mobile applications to technology companies ranging from Fortune 500 firms to Silicon Valley startups. Our Services:. NET software developmentAI/LLM software developmentCustom software developmentDedicated development teamWeb app developmentMobile app developmentCloud developmentSoftware architecture designUI/UX designBusiness analysisQuality assuranceApp support & maintenanceTechnology consultingOur Key Technologies:Microsoft Stack: . NET, ASP. NET, C#, Azure, WCF, Entity Framework, MaUI, BlazorWeb/Frontend: React, Angular, Vue, jQuery, TypeScriptBackend: . NET Core/C#, Ruby, Node, PHP, PythonMobile Technology Stack: iOS, Android, Flutter, Swift, KotlinAI integration

At Blackbird, we empower startups to thrive. Specializing in Seed and Series A companies, we extend runways by enabling engineering teams to focus on growth-driven features while we take care of everything else. With offices not only in Ukraine but also in Colombia, Spain, and Poland, we bring deep expertise in SaaS, cloud-native products, frontend applications with React, and both native and cross-platform mobile apps—all within a fast-growing tech ecosystem that operates with zero downtime. Want to know how we can help? Reach out! Our team will conduct a comprehensive tech assessment and present tailored options to elevate your startup to the next level.

Creating High Value for the Future. With delivery centers in Ukraine and the Netherlands, we design, develop and support innovative software solutions, helping companies to reach their goals, create high value and stay ahead of competitors. We provide Western European and US based clients a high value services, where quality and performance are equally important. Having a strong team of skilled innovative developers, quality engineers, project managers and business analysts, PROBEGIN is an experienced system integrater and has build many high value platforms over the years for it’s clients. We are growing steady and setting up virtual nearshore development centers (NDC) for diverse software development companies in the financial, e-commerce, health care, media & entertainment,energy, games and gambling verticals. PROBEGIN is a technology solutions company with 6 years of experience on the market and over 250 satisfied clients. We help leading companies and tech startups to stay ahead of competition with skilled talented IT specialists and business insights. We value the relation highest and adopt our services on the needs of our client. We prefer to be on the background, so you can shine with your product, project or services. We sharpened our expertise to deliver highly-functional solutions and establish long-term partnership with our clients. We have integrated Agillity in our corporate culture and we understand in order to deliver agile services, we should be Agile individuals. The key approach from PROBEGIN is that we customize how we work for you, adopting the team to your company and assisting through the full life cycle of your product, project or service. Regardless of technology platform, PROBEGIN can work either as a custom software project developer or as a seamless addition to your in-house technology staff. Get in touch with us now and experience our approach first hand.

IoT, Digital Health, Fintech, and custom software Vakoms is a custom software development company, delivering end-to-end IT solutions and services, including IoT. Product development solutions Full cycle product development Prototyping and MVP development Firmware and embedded development Software development services Internet of Things (home automation), firmware & embedded software for digital health companies fintech development Web: web apps, APIs, Big Data and cloud solutions Mobile: native and cross-platform apps for iOS and Android Desktop: native and cross-platform apps for Windows, macOS, Linux Key technologies Python, Java, C/C++, Node. js, JavaScript, TypeScript, Angular, React, Qt, QML, Swift, Kotlin. Cooperation models Dedicated team Staff augmentation

Blackthorn Vision is a software development company that specializes in creating custom solutions to meet any business needs. Founded by a team of experienced engineers, we’ve been providing our services since 2009. We are dedicated to helping companies bring their ideas to life and embrace innovations. Our team is focused on delivering quality products and supporting clients at every stage of their project’s lifecycle – from product discovery to implementation to post-launch optimization. Blackthorn Vision is there when you need us most. Reach out today and start making your vision a reality tomorrow!

Expert design & development team to create top-notch 💫 product experience. Since 2016 we’ve created 90+ projects for startups and businesses worldwide. Our work has global 🏆 awards and is loved by hundreds of thousands of people 🌎We deliver the best product experience by blending three key areas of expertise: product♟️ strategy, user-centric🧍design, and 🛠️ custom development.

FIVE provides services in the following technological directions:Cloud servers and servicesDesktop applicationsWeb applications and websitesMobile applicationsEmbedded developmentWe have only happy customers! We have successfully completed every project FIVE engineers have been working on!We don't charge for management, all of our invoices include only technical hours. We propose architecture and project analysis for free!We know how to build efficient team and can find great talets to empower your business.

Linkup Studio is a full-cycle digital product development company with 11 years of market experience. We specialize in software design, development, management, and marketing. Founded in Lviv, Ukraine, our main operations are now based in Wroclaw, Poland, with representatives in Tallinn, Estonia, and New York, USA. Over the past eleven years, we have worked in more than 35 countries and successfully completed over 150 projects worldwide. We’ve collaborated with renowned brands such as Porsche, TATA, BOSCH, FreeStone Group, and Reverso, earning top design and software awards. Linkup is part of InSoft Partners, a group of companies with over 1,000 talented professionals operating globally.

Your reliable web/mobile development partner InventorSoft is a Ukrainian web and mobile development company that provides top-tier, pre-selected developers tailored to your specific needs as a SaaS company. Whether you're scaling from an MVP to a full product or preparing for acquisition by the largest organization, we help drive growth by hiring the best talent for your project. Our developers are highly skilled in core technologies and have expertise with AI tools like GitHub Copilot and OpenAI, allowing us to deliver projects up to 20% faster than competitors. ⭐ Our professional developers are experts in: Artificial Intelligence Java Angular Node. js React. js Vue. js Ruby on Rails . NET Design (mobile/web) Inventorsoft provides a perfect combination of: 1) Transparency 2) Quality recruitment selection 3) Trial Period Our company is not just a performer, but a reliable partner, which is why we have established and maintained successful long-term relationships with many clients, which we are extremely proud of. We are responsible for our actions and customer feedback because we value our reputation and clients. Why us: 10 years of expertise and spotless reputation 45+ SaaS active clients 40+ feedback on our work 30 own completed academies in different directions Our main industries Healthcare Data Analytics Supply Chain Fintech E-learning Renewable energy So, if you need high-quality product development, contact us!

North South Tech is a leader in digital and app innovation and a Microsoft Partner, helping businesses harness the power of cloud, AI and automation. North South Tech focuses on digital and app innovation, delivering high-impact solutions across cloud,automation, and AI to drive efficiency, scalability, and business transformation. By connecting world-class engineering talent with enterprises, we accelerate software development, optimize performance, and drive digital transformation. Our expertise in Microsoft (Azure) and other technologies like Amazon (AWS), Google (GCP) that enables organizations to build scalable, high-performing applications that unlock new growth opportunities in an AI-driven world.

Software Delivery Driving Business Growth. We know how important it is for businesses to have an effective solution.  We primarily specialize in Logistics, Oil&Gas, Supply Chain, Real Estate, and E-commerce. Here's why our clients appreciate working with us:smooth workflow;deep understanding of internal tasks and problems;appealing design;flexible project planning;trustworthy team.