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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

COAX, a powerhouse software development company with 14 years of experience, crafts bespoke web and mobile applications for travel, retail, and eCommerce giants.

Link The World To Digital. We are a leading software development company based in Ukraine, specializing in delivering tailored software solutions and top-notch IT consulting services globally. Our expert technical team, headquartered in Kyiv, consists of highly skilled web and mobile developers, inquisitive business analysts, talented UI/UX designers and QA engineers, and dedicated project managers. As a software outsourcing company and web development agency, we thrive on unlocking new opportunities for start-ups and establishment businesses that are looking to drive innovation and growth. Our main values are high-quality work, agile development methodologies, and excellent communication with clients at all stages of work. We assist our clients in achieving digital transformation by serving as a strategic partner, which results in the enhancement of their products, acceleration of service delivery, optimization of operational efficiency, and expansion into new markets. We are rapidly implementing AI and machine learning solutions into our clients' products and evolving as an AI development company. Our services include: Discovery stage (Business analysis) UX/UI design Mobile App Development Web App Development QA and testing DevOps IT consulting Our holistic approach ensures that we address every aspect of your project, from concept to deployment, to provide you with the most effective digital solutions. Proudly recognized as an Upwork Top Rated Agency, we've consistently proven our commitment to delivering excellence and innovation in every project we undertake.

The Real-Time Business Platform

Span LLC is part of the international Span Group headquartered in Croatia, with over 30 years of experience in building and developing information systems for businesses worldwide. With three decades of experience, Span has become a trusted technology partner for companies in the global market. In the past 5 years alone, the team has successfully delivered over 1,400 complex IT projects. The company maintains strategic partnerships with leading global manufacturers of IT equipment, data center solutions, software, and major public cloud service providers. Span places particular emphasis on its Microsoft partnership, holding 12 advanced specializations in key areas: from infrastructure and security to modern solutions using artificial intelligence. In Ukraine, the Span team has been operating since 2018 and has already twice earned the Microsoft Partner of the Year status! The Ukrainian team of certified specialists helps businesses, government institutions, and charitable organizations modernize their operations through modern technologies. The company`s services include: building cloud and on-premises infrastructure, strengthening cybersecurity, automating business processes, implementing data analytics systems, software audit and licensing, technical support, deploying enterprise AI solutions, and many others. Span Ukraine`s comprehensive approach ensures maximum effectiveness of implemented solutions. This includes training sessions for users to help them work effectively with new tools, specialized training for clients' technical teams, as well as ongoing technical support and consultations at all stages of cooperation. Span builds a true ecosystem around its clients, growing side by side with their business through regular free training events on new technologies, sharing international project experience, and organizing technology meetups together with leading software vendors.

Emotion is a boutique digital studio that creates websites and web app designed to elicit strong emotional responses while delivering a seamless user experience. We design and develop interfaces, create concepts for digital products, and bring them to life. Our projects prioritize aesthetics, current technologies, and human-centric marketing. Our Services:Website (App) Design & Development: Promo sites, corporate platforms, multi-page websites, and e-commerce solutions with modern CMS and features. Digital Automation: Integration of analytics, CRMs, payment systems, and AI tools to streamline your business processes.  We offer tailored solutions to meet your goals and help your business grow. Let's explore how we can help you achieve your business objectives through exceptional web design, intuitive user interfaces, and strategic digital marketing! 

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

Software Design and Development Partner. At OTAKOYI, we believe that the technology world can do better, and we start with ourselves. When you partner with us, you gain a trusted ally to navigate the challenges and opportunities of the ever-evolving tech landscape. Our collaboration goes beyond mere partnership; it reflects our deep commitment to your project’s success, anchored in radical honesty and transparency. We take pride in our enduring partnerships with industry leaders such as Lenovo, Philip Morris, Credit Agricole, METRO, Engel & Völkers, KIA, Kraft Heinz, OKKO, Knight Frank, ETA+, WWG, MBC, Landmark Group, and NAI Global. Behind each name is a story of long-term, trustworthy collaboration and inspiring mutual results. Our services include:- End-to-end Software Development- IT Staff Augmentation & Team Extension- IT Consulting & Digital TransformationWe cover the following expertise areas:- AI, ML, and Data Science- Application Re-Engineering- Software Development for Startups- Web App Development- Mobile App Development- DevOps & Cloud Services- Blockchain- Product Design

Your trusted partner for guaranteed software delivery. ELEKS is a trusted partner for guaranteed software engineering excellence, quality, and transparency every step of the way. Build from scratch or use our delivery accelerators to get your software to market faster, while our team of experts keeps you informed and involved throughout the entire development process. No missed deadlines - just reliable software that frees you to grow your business. ELEKS is the partner of choice for many of the world’s leading enterprises and technology companies. With about 2,000 experts across Europe, the US and Canada, we stand up to the most complex technology and business challenges, employing a mix of pioneering and traditional methods to design and implement full-cycle products that fulfil your software vision. Featured services and areas of expertise:Full-Cycle Custom Software DevelopmentDigital Product Design & Customer ExperienceEnterprise Applications Consulting and Implementation (CRM & ERP)Data Strategy, Data Science and AISecurity Advisory ServicesCloud & InfrasructureSustainability Consulting & ReportingCompany facts:​120+ active client accounts21 offices globally63 Net Promoter Score1000+ end-to-end projects delivered​​In business since 1991.

Artelogic is a nearshore software development company with offices in Ukraine, Poland, the UK, and Azerbaijan, which helps us align with several time zones. Our key nearshore software development center is inhabited by 100+ programmers, and we continue to hire and grow more IT talents. In addition to being powered exclusively by senior-level engineers, we also focus on high-level experts in business analysis and solution architecture to ensure that our solutions efficiently meet business objectives.

We’re digital pioneers on a mission to turn every project into a breakthrough. With deep expertise and a product-oriented team, we transform challenges into enterprise-grade solutions. We partner with you to build scalable and user-friendly solutions that deliver required results. Let's craft together an exciting journey toward success.

The Company That Exceeds Your Expectations. SEVEN is an IT partner with time-tested expertise in solving complex software challenges requiring narrow specialization. One of our biggest strengths is finding unique approaches and solutions for startups and businesses. ✔️ We specialize in: - Web Development - Mobile Development - UI/UX Design ✔️ Our Top-Priority Industries and Directions - Healthcare - Education - Business - Social Networking - Video Conferencing - E-Commerce Solutions ✔️ We offer a number of WebRTC-based core solutions with the option to tailor them to your needs, both in terms of functionality and UI/UX: - White Label Video PPM Chat - PPM, PPS Video Chat Core With SEVEN, our clients team up not just with tech-savvy people but with a group of experts who know how technology influences the business and how to make it align with sustained growth in the future.