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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

Founded in 2018 in Geneva, Switzerland, Software Service & Innovation (SSI) has grown from a small startup to a recognized provider of IT services. We specialize in bespoke software development, complex IT solutions, and cutting-edge digital transformation, delivering Swiss-quality precision and result-driven solutions to businesses of all sizes. Our expert team is committed to clarity, quality, and responsibility, ensuring that every project we undertake is executed with technical excellence and innovation. Whether you need custom software, cloud solutions, or DevOps expertise, SSI delivers tailored, high-performance solutions designed to maximize your business potential.  Partner with SSI for innovation, reliability, and success in your digital journey! 🚀

Impressit combines deep AI engineering expertise with a rapid deployment model to help mid-market and enterprise companies move from AI experimentation to production-ready systems.  Rather than offering staff augmentation or generic consulting, Impressit provide integrated teams that take ownership of delivery while working within your existing processes and infrastructure.  Our approach centers on building secure, scalable AI platforms — from RAG systems and voice interfaces to custom copilots — that remain under your control, avoiding the limitations and risks of public LLM dependencies.

 Advizor is an AI-powered Autonomous Energy Efficiency System for buildings that helps property owners monitor, control, and optimize energy consumption of their estate, and as a result reduce exploitation costs.   The unfair advantage of Advizor – it can be connected to practically any equipment for facility management. Moreover, the online software platform interface can be tailored to specific customer profiles (retail, fitness centres, warehouses, and production facilities).  We are shaping a future where real-time energy management becomes a conscious practice and an integral intellectual component of every building.  

ZONE3000 is a 2400+ experts strong technology innovator ranked within TOP-10 Ukrainian IT companies by DOU. We focus on Data Governance, Generative AI and Machine Learning solutions. Vertical focus is on Technology, Construction, E-commerce & Retail, Real Estate & PropTech. The company started its operations in 1998, is privately held and grows organically. Average customer engagement exceeds 10 years, and we are proud of unparalleled staff retention rates. ZONE3000 is actively hiring both within and outside of Ukraine. US, European and MENA markets is our main focus.

Prozori Solutions is a Ukrainian software development and R&D company committed to empowering businesses, startups, and public sector organizations with secure, scalable, and high-performance software solutions. With over 15 years of experience and a team of 80+ professionals, we leverage cutting-edge technologies to drive digital transformation, streamline operations, and foster innovation. Beyond technology, we actively contribute to social impact initiatives, playing a key role in Ukraine’s digital transformation, particularly in Education, Procurement, and Healthcare. Our solutions help modernize public services, improve accessibility, and enhance transparency.

Intobi strives for innovation and progress while helping clients benefit from tailor-made tech solutions. We develop custom software applications to ensure both monetary gains and savings 💰As a tech partner, we take pride in our involvement across all phases of the project life cycle, encompassing business analysis, research, evaluation, UX/UI design, development, and support.  Advanced Services:💻 Web developmentIntobi provides end-to-end solutions for all Web-related necessities. Our strengths are user-centric SaaS platforms, admin panels, dashboards, CRM systems, etc.  📱Mobile developmentWe specialize in building functional and user-friendly mobile apps for both iOS and Android, using either native or cross-platform technologies.  🏢 Enterprise software developmentCRM, ERP, SCM, and EAM. Re-engineering migration maintenance. Expanding, modifying, and adding new functionality to existing systems.  If you're seeking a committed tech partner, feel free to reach out to us, and we will dive deeper into discussing your project.

Vector Software is an experienced IT outsourcing company offering premium custom offshore development services. Established in 2014 the company has quickly grown into a prosperous software development company. We provide our customers with the best solutions in the field of customized software development. Having experienced and skilled outsourcing software developers with extensive technology expertise allows us to deliver software solutions of different complexities on time.

GIS Art is a custom software engineering company with a main focus on Geographic Information Systems. We develop GIS and Web applications for companies from the USA, Europe, and Australia working in the domains of Healthcare, Transportation, and Real Estate. GIS Art has experience in using ArcGIS, Google Maps API, Leaflet, Mapbox, and OSM for the development of GIS applications and components.

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.

WebCode. Agency is a team of professionals with over 10 years of expertise in web development and business automation, helping companies grow and work more efficiently. • Web Development. • CRM Solutions. • Business Automation & Telephony. Trusted by Unmanned Systems Forces of Ukraine, “Madyar”, BauGlas, Rodeca, Young Business Club, and others.

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.