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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

Mobile App Design and Development Company Perpetio is your one-stop destination for app & web design and development. Operating since 2014, we’ve successfully delivered 150+ projects that top the charts in the market and are used by millions of people worldwide. Being a full-stack development company with an HQ in Tallinn, Estonia, and an R&D office based in Lviv, Ukraine, we cover: Business Analysis Planning, UI/UX Design Backend/Client Architecture Development Quality Assurance Deployment Maintenance and Support. If you’re looking for a winning partnership, contact us today and let’s get started! 🥇 Why Choose Us? - Our apps top the charts in AppStore/Google Play - 9+ years of success and counting - 100% English-speaking team Whether you need to launch your MVP quickly or need expert consultancy for your business, Perpetio is a great partner to help you succeed. So why wait? Let's create something amazing together! 🤝

We are a reputable IT Innovation House with a strong track record in supporting businesses from Pre-Seed to Series C, global accelerators, and VCs alike. Employing our ScaleFlex™ methodology as a framework for all engagements, we free business leaders to focus on commercial priorities.  

Intellectsoft is a digital transformation consultancy that provides cutting-edge engineering solutions for global organizations with the mission to help enterprises accelerate the adoption of new technologies, untangle complex issues that always emerge during digital evolution, and orchestrate ongoing innovation. Intellectsoft has been named as Top Custom Software Development Company in 2024 by FirmsTalk, Top App Development Company in 2024 by Business of Apps and received over 16 awards in 2024 alone. The Company’s services portfolio offers strategic IT consulting, CX design, development, and full lifecycle management of custom software products and applications, and system integration. Whether it is a consumer-oriented app or a transformative enterprise-class solution, the company leads the process from ideation and concept to delivery and provides ongoing support through its IS360 framework.

BuildApps is at the forefront of developing innovative digital solutions tailored to automate and address the needs of small and medium-sized businesses. With our headquarters in Ukraine, our full-cycle company excels in transforming ideas into software excellence through expert design and development. Founded by tech leads with extensive professional backgrounds, we provide expertise at every level of our operations. We are passionate about our work and committed to delivering outstanding results. Each project is handled with enthusiasm and precision, ensuring that our solutions effectively meet client needs and deliver significant value.

TRANSFORM YOUR PRODUCT’S TECH FOUNDATION. PERFORMANCE. SCALABILITY. USABILITY.

Together, Beyond Expectations. With nearly two decades of experience on the global IT market, CHI Software is your go-to provider of AI solutions, bringing a real difference to businesses. We create intelligent virtual assistants that boost customer engagement, optimize workflows, and improve overall business performance even with minimum budgets. CHI Software offers full-cycle chatbot development, from conceptualization and design to implementation and ongoing support. In our work, we apply natural language processing (NLP), machine learning, and deep learning, ensuring our solutions are scalable and can be integrated with various platforms like websites, mobile apps, and social media channels. Our team takes a personalized approach to each project, delivering solutions tailored to specific business goals. Our extensive experience with AI, alongside our commitment to innovation, enables us to create chatbots that not only meet but exceed expectations. Partner with CHI Software to experience the full potential of AI chatbot technology (it’s huge!) and stay ahead in the rapidly evolving digital landscape.

Founded in 2014, LaSoft has grown from a small, visionary startup to a global leader in IT solutions, helping businesses tackle their most complex challenges with cutting-edge technology. With a presence in Ukraine and Poland, LaSoft unites 120+ talented professionals across multiple countries, delivering exceptional digital solutions and fostering a culture of collaboration and growth. Specializing in high-loaded dashboards, MVP development, and full-cycle software services, LaSoft has successfully delivered 85+ projects worldwide, driving business success through data-driven strategies, seamless user experiences, and top-tier design and development. Our expertise spans UI/UX design, web app development, QA, and project management, ensuring that every client’s vision is executed to perfection. What sets LaSoft apart is our holistic approach: we focus not just on building great products but on enhancing profitability, optimizing costs, and expanding user engagement. Our in-house product managers and test-driven methodology ensure that each project is strategically aligned with long-term goals for measurable success. With offices in dynamic tech hubs like Lviv and Łódź, and a global team working remotely, we’re positioned to meet the needs of businesses across industries. Join us on the journey of growth and innovation—let’s build the future together.

Code for business, care for the world. Keenethics is a top-rank software engineering company focusing on end-to-end web development following Agile principles. Since 2015, we've worked with clients worldwide, primarily from the United States, the United Kingdom, and the EU. Our clients include enterprises such as Epson and proptech startups like Ruuster. We develop custom solutions for industrial tech, HRtech, and edtech. So far, our team of 100+ specialists has executed over 120 projects in: - web development - mobile development - MVP - SaaS development - UX/UI design - AI & machine learning - no-code Our key services: 1. Ideation and Discovery — Business analysis and UI/UX 2. Prototyping and Validation — Bubble for a 3x speed of development 3. Development — JS-based tech stack and cross-functional agile teams 4. Product growth and team augmentation — Elixir and Rust technologies 5. Maintenance — DevOps, AWS, Google Cloud Platform, and Azure technologies

Scelex is a software and service technology company. We deliver tailored software solutions through a dedicated end-to-end development process, utilizing the latest technologies to address the distinct needs of each client. We've brought together all the best practices and ideas, that we discovered while working in large IT-corporations, to create a unique company, that will satisfy clients' business needs and produce high-quality solutions.  Scelex's mission is to empower businesses through innovative technology solutions that enhance efficiency, drive growth, and create competitive advantages in the ever-evolving digital landscape. Our expertise includes:- Serverless Architecture- Frontend Development based on React- Backend Development based on Node. js- Mobile Development based on React Native for both iOS and Android devices- Amazon Web Services (AWS)- DevOps Engineering- UI/UX Design- Quality AssuranceWe are eager to collaborate with you and help transform your ideas into leading products. Contact us to discuss how our expertise can contribute to your project's success.

The InterLink company started its history in 1998 with several enthusiastic people. Their cooperation established InterLink company in 2000. We have experience building own products and working with our customers throughout the world on their ideas making them happen. We were one of the first companies that joined the Agile manifesto and actively use agile processes like Scrum and Kanban.  Among our customers are entrepreneurs with ambition startup ideas and well-known corporations (Nokia, Siemens, Xerox, BMW, Dell).  We know how to build fast for startups and how to build robust and long-living applications for enterprises.

itjet is a full-cycle development and design agency that helps startups, scale-ups, and businesses transform ideas into powerful digital solutions. From concept to launch, we handle your mobile app, website, or platform with seamless ease: - fully transparent processes, - regular reports and detailed progress tracking, - easy communication, - completing tasks on time. We are here to turn your ideas into reality!