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We provide certified experts in React, Node, and React Native. But that's just the beginning of what we offer. At koitechs, we pride ourselves on having a diverse team of developers with varying skill sets to match the specific needs of each project. Our extended hours support ensures that we are available to address any concerns or questions you may have outside of the standard working hours of the developer. With several managers available 16 hours a day, we are dedicated to providing consistent and reliable communication for <CET/PDT> time zone.  One of our key strengths is our Quality Assurance process, which starts during development. Our developers utilize QA techniques to identify and eliminate most bugs before the feature even reaches the client or QA engineer. In difficult situations, our in-house developers are always available to assist one another, ensuring timely and high-quality delivery.

Techstack company is an international strategic technology partner with strong Ukrainian roots, delivering comprehensive digital transformation services worldwide. We unite nearly 200 experts across borders, combining staffing, engineering, and optimization services into one powerful offering. With over a decade of excellence, we’ve become a trusted partner for global businesses — 30% of which are $1B+ enterprises — delivering full-stack teams and empowering software engineering leaders. Rooted in our Ukrainian engineering heritage and strengthened by our international presence, Techstack unites the best of Eastern European technical excellence with global business practices, making us a partner capable of both precision in execution and vision in strategy. 💫 The Techstack Difference
Strategic Partnership:- Engineering with product ownership, aligned with your goals- Strong technical leadership and proactive delivery planning- Long-term scalability built into every architectureProfessional Excellence:- Senior-level expertise across all technologies- Cross-functional teams with diverse skill sets- Proficiency with modern tech stacksTransparent Communication: - Regular updates and detailed reporting- Direct access to your dedicated team- Clear project roadmaps & milestone trackingQuality-First Approach:- Rigorous code reviews and comprehensive testing protocols- Strict coding standards adherence- Industry best practices in every deliveryBusiness Value Focus:- Transparent pricing with no hidden fees- Resource optimization strategies- Value-driven development aligned with your goals- Scalable architecture design- User-centric development methodologyModern Technical Capabilities: - Cloud-native solutions- AI & ML integration|- Automated workflows- Agile methodology- Advanced DevOps practicesWe align with your product and business strategy, bring disciplined engineering practices, and build solutions designed for scalability, resilience, and long-term growth. Let’s build something that lasts! 

Hesh is an operating system for the craft economy. We offer a comprehensive solution for small and medium-sized businesses (SMBs) in manufacturing. The platform combines the functionality of Product Lifecycle Management (PLM), Enterprise Resource Planning (ERP), Manufacturing Execution Systems (MES), and Material Requirements Planning (MRP), all working together with AI-powered agents.

✅ We effectively cooperate with non-technical clients, providing CTO-as-a-Service solutions. If you are at the beginning of the startup path, we are the right team to assist you with the technical aspect of your project. 🧩 If you already have a team and the product on the market, we can collaborate on a team augmentation basis. Our developers are proficient in English, attentive to details, and can efficiently work with your in-house engineers and managers. It will be a missing puzzle that will fit perfectly into your ecosystem. 🎯 Our main focus and expertise are in the following domains: - On-demand Map-based apps; - Social-networking apps; - Photo & Video apps; - Dating apps; - Sport and Fitness; - Wellness and Healthcare; - eCommerce; - FinTech. 💎 We have a proven 5-year history of successful consulting and full-cycle development cases in the digital area. 💻 Here is our tech stack:- Swift, Objective-C for iOS;- Java, Kotlin for Android;- Flutter & React Native for Hybrid apps;- React. js for web pages;- Node. Js for the backend. 🔐 We have high standards in code creation and contributed to the open-source dev community. But what’s more important, we have an organized delivery process, tailored for every project because no two cases are alike. For making our Code perfect, we integrate Unit tests, do daily Pull-Requests & Code Reviews, apply Automated testing, and use styling libraries, that allow us to keep the same pattern of coding when working as a team. 🌐 Our partners are located in Canada, the US, and Israel and we have successful cooperation cases in which our devs became dedicated team members of our partner’s company. It just feels like you are working with in-house product engineers. 📌 We are currently open for new collaboration so if you need a streamlined and proficient development team for your geolocation-based, social, or wellness project, feel free to get in touch with us.

For over 10 years, we’ve helped startups and enterprises worldwide digitalize their processes, launch successful products, and scale with confidence. We build with the latest technologies—React, React Native, GraphQL, TypeScript, and Node. js— to deliver applications that are stable, scalable, and future-ready.  Industries & business domains we serveManufacturing, Facility management, Logistics & supply chain management, Fintech, Human capital, B2B solutions, Healthcare, ESG & sustainability, E-commerce, Productivity & task management.  Trusted by global brandsHive – Project management tool used by thousands of teamsA. Anthony Corp – Enterprise facility management platformSYNTHO – Music platform that reached $700K in revenue in 2024Multi App – Fintech app with 100K+ downloadsPiraeus Bank Ukraine What we do best🚀 Dedicated teams & engineers – Experts who integrate seamlessly with your workflow🛠️ Full-cycle product development – From strategy and design to launch and support⚡ MVP development – Rapid, market-ready solutions to test and scale your idea✅ Quality assurance & testing – Reliable, bug-free performance every time🎨 UX/UI design – Intuitive interfaces that delight usersOur mission is simple: deliver products that our clients are proud of — and that their customers love.

DevHired: Empowering Startups and Businesses with Custom Software Development and SaaS Solutions Our Experience and Technical ExpertiseWith years of experience, we have refined our skills in custom software and SaaS development. From ideation to deployment, we ensure top-tier solutions that meet client objectives. Specializing in industries such as SaaS, eCommerce, and finance, we provide forward-thinking solutions that propel businesses to the next level of success. Our Core CapabilitiesBespoke Software DevelopmentWe specialize in designing custom software that aligns perfectly with our clients' needs, ensuring seamless scalability and efficiency in business operations. SaaS PlatformsWith extensive experience in developing subscription-based platforms, we deliver secure, scalable, and easy-to-use SaaS solutions that drive business growth and operational effectiveness. Dedicated TeamsOur dedicated teams of professionals bring together the expertise and resources necessary to execute projects on time and with precision, ensuring the highest quality of work. Comprehensive QA and Ongoing SupportBeyond development, our robust quality assurance services ensure everything works seamlessly, and our support team provides reliable post-launch assistance. Our Achievements and MilestonesSuccessful LaunchesFrom inception to successful launch, we have worked on a variety of projects that have helped businesses scale, streamline processes, and improve customer experience. Trusted PartnershipsOver the years, we’ve earned the trust of leading brands and startups by delivering impactful solutions that drive measurable results. Innovative SolutionsWe continue to push the envelope with new technologies, ensuring that our clients benefit from the latest in development trends and best practices.

Since 1999, UST has collaborated with the world's leading companies, creating a powerful impact through transformation. Our digital solutions, proprietary platforms, engineering expertise, R&D, and innovation ecosystem transform key challenges into impactful, disruptive solutions. With deep industry knowledge and a future-ready approach, we bring expertise, innovation, and agility to our clients’ organizations—delivering measurable value and driving positive, lasting change for them, their customers, and communities worldwide. In 2022, UST expanded its presence in Eastern Europe by acquiring the Ukrainian outsourcing company ITernal Group, marking its first office in Ukraine. This acquisition strengthened UST’s position in the Ukrainian market and contributed to the development of the local IT ecosystem. (inventure. com. ua).  In 2024, UST further expanded its SAP partnership into the Ukrainian market in the Sell and Service areas, achieving Silver partnership status.  Together, with 30,000+ employees across 30+ countries, we build for boundless impact—touching billions of lives in the process. For more insights, watch this discussion.  

Since 2013, Relevant Software has been delivering tailored software development solutions across diverse sectors such as fintech, healthcare, and construction, partnering with mid-sized businesses and large enterprises, including those in the Fortune 500. We also help our clients gain a competitive advantage, reach new markets, and enhance operational efficiency through innovative technologies such as IoT, machine learning, and AI.  With self-sufficient teams and timely delivery, we provide end-to-end software development solutions that solve complex challenges, ensuring your business stays efficient, competitive, and always relevant.  10+ years of software development excellence. 200+ projects across diverse industries. 150+ dedicated software engineers. 92% of the team are senior and middle-level engineers. 97% client retention for new projects and support. 80% employee retention with a 5-year average tenure.

Established in 2008Offices in Kyiv (Ukraine) and Warsaw (Poland)100+ completed IT projects50+ clientsMajor domain expertise: e-Commerce, Logistics, Games, Security, Telecom

About Servus Systems Integration LLCServus Systems Integration LLC (SSI) is your trusted partner for seamless payment processing solutions. With over 20 years of experience in the payment industry, we empower businesses of all sizes to accept payments effortlessly across various POS terminals. Our team of experts leverages this deep understanding to develop and implement robust, brand-agnostic payment solutions. This translates to:Flexibility: Integrate seamlessly with any POS terminal you use, regardless of the brand. Proven Success: Backed by dozens of successful installations, our solutions are reliable and efficient. Peace of Mind: Benefit from our extensive industry knowledge and a team dedicated to your success. We understand that every business has unique needs. That's why we take a personalized approach, tailoring our payment solutions to perfectly integrate with your existing systems and workflows. Ready to streamline your payment processing and unlock new growth opportunities? Contact Servus Systems Integration today!Компанія Servus Systems Integration LLC (SSI) — ваш надійний партнер з питань інтеграції безпроблемних рішень для обробки платежів. Завдяки понад 20-річному досвіду роботи в платіжній індустрії, ми допомагаємо підприємствам будь-якого масштабу легко приймати платежі на різних POS-терміналах. Наша команда експертів використовує ці глибокі знання для розробки та впровадження надійних універсальних платіжних рішень. Це означає:Гнучкість: Безпроблемна інтеграція з будь-яким POS-терміналом, незалежно від бренду. Доведена успішність: Наші рішення, підтверджені десятками успішних інсталяцій, є надійними та ефективними. Спокій: Скористайтеся нашими глибокими знаннями галузі та командою, яка прагне вашого успіху. Ми розуміємо, що кожен бізнес має унікальні потреби. Саме тому ми використовуємо персоналізований підхід, адаптуючи наші платіжні рішення для ідеальної інтеграції з вашими існуючими системами та робочими процесами. Готові оптимізувати обробку платежів та відкрити нові можливості для зростання? Зверніться до Servus Systems Integration вже сьогодні!

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 Platinum 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

NERDZ LAB is a full-cycle software product design and development company. We’re here to bring your project idea to life, and help it grow and succeed. Founded in 2017 in Lviv, Ukraine, today we’re a team of 80+ professionals with a passion for what we do. We offer full-cycle software product development, from prototyping and UI/UX design for MVP validation to market-ready mobile and web app development, all backed by the expertise of our CTO as a service/fractional CTO model, and ongoing support. With our wide experience working with startups and growing businesses, we know what it takes to grow a product and make it thrive. What we do:- UI/UX and product design- Mobile app development- Web development- Quality assurance- ConsultingCooperation models:- Time & material- Dedicated development team- Fixed-price