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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

We are a group of Ukrainian FinTech companies with a fast-evolving business ecosystem. Our core business, Checkbox — already #1 in the market of digital cash registers (DCR). From small coffee shops to industry giants, we give businesses peace of mind by eliminating bureaucracy, ensuring secure trade, and keeping them fully compliant with the law. Meet the main products of our fast-evolving FinTech ecosystem:Checkbox – a market-leading digital cash register solutionCheckbox Banking – smart solutions for payments and SMB financingDubidoc – a document workflow for IT teams with AI featuresPosbox – a smart AI-powered POS that makes growth easyand many more products are coming soon! Among our clients: Glovo, KFC, Foxtrot, Luxoptica, INTERTOP, Synevo, Puma, MHP

Tallium is a trusted partner for your business innovations. We are focused on crafting custom mobile and web applications for both startups and large enterprises, assisting our awesome clients and partners all the way from concept and design to finished product, launch, and maintenance. Our close-knit team consists of 100+ IT experts, including top-skilled UI/UX Designers, professional Software Engineers, QA Engineers, Project Managers, Product Owners, and Business Analysts. We have extensive expertise in FinTech, Healthcare, and Education, as well as in creating functional and large-scale marketplaces, social platforms, engaging mobile applications, and advanced AI algorithms. We are also happy to provide Consulting services on building reference Agile development processes using SAFe frameworks, as well as to ensure Staff Augmentation and empower existing teams with our best talents. Working with customers from all over the world, we promote innovation, push the boundaries of design and use only the latest technologies to charge great ideas with technical excellence and flawless execution.

Fintech Software Development Partner . doCode is your global software development partner from Eastern Europe. One of our main goals is to help businesses go more digital through our engineering and development expertise. We thrive specifically but not limited to Fintech and we provide services from MVP mobile banking apps to complex enterprise-grade financial solutions. If you share your concept, with our expertise, we’ll make it a successful product. Official AWS Partner ISO 27001 certified Our services: - Expert Consulting - High-level Architecture Development - Proof of Concept - Efficient Cloud Solutions - Full-cycle Product Development & Support - Product Maintenance & Support Cooperation models: - Project development (outsourcing model) - IT staff augmentation - Dedicated teams (outstaffing model) The technologies we use: Front-End: React. js, Vue. js, Angular Back-End: Node. js, Java, GoLang, . NET Mobile Development: React Native, Flutter, Kotlin, Swift DevOps: Amazon Web Services, Google Cloud Platform Design & BA: Prototyping, UI/UX design, Product design & Analytics, Design research & analysis Our already made solutions: CRM systems Administration tools Monitoring systems Custom web platforms Custom mobile applications Data Analytics Fintech: Onboarding & AML | KYC | KYB UK Local Payments | SEPA | SWIFT Currency Exchange Mobile banking | Digital Wallet Card issuing & management BaaS API implementation

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!

Stfalcon has been developing custom web services and mobile apps for over 15 years. Since last year, we've managed to get 15 new projects; the number of employees at Stfalcon has increased by 20%. We operate a management system to the requirements of ISO 9001: 2015. Services we provide:Discovery Phase in 4-6 weeksUI/UX DesignDedicated teamsWeb/Mobile developmentCross-platform app developmentMVP for startups in 2-3 monthsDevOpsOur expertise includes:FinTech / Blockchain / Crypto app developmentTransportation and Logistics Software SolutionsIT solutions for automation in the medical fieldSince 2009, our projects have included Nova Post (the top private parcel delivery service in Ukraine), MeinfernBus (the most prominent German bus operator), CRM, ERP, TMS, and apps for taxi and booking. Contact us, and we will be happy to create something awesome for you!

QArea provides award-winning web & mobile development services that help growing startups, mid-sized businesses, and enterprises scale their software solutions and development teams.  Company growth relies on two key components: building complex, high-load web solutions and developing long-lasting partnerships by focusing on the outstanding quality of the projects delivered. Since its establishment in 2001, QArea has grown into a leading mid-sized outsourcing company with 900+ completed projects and a CMMI-Dev Level 3 appraised, ISO 27001 certified product development team. Key services: - Web development - Mobile & web app development - UI/UX design - Product & MVP development - IT consulting - DevOps - QA and testing - Dedicated teamsKey technologies: - Front-end: JavaScript, React. js, Angular, TypeScript, Vue. js - Back-end: Node. js, Java, Golang, PHP, Python, C#, . NET - Mobile: React Native, Flutter, Ionic, Swift, Cordova - Other: WordPress, Odoo, WooCommerce, Shopify, Magento.

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.

Spacebring is the coworking space management software designed to streamline operations, save time, and increase customer loyalty. Save 15–20 hours per week by automating bookings, invoicing and other administrative tasks. Deliver an exceptional customer experience through a branded web portal and mobile app that ensures consistent engagement. Get started within hours and focus on growing your coworking or shared space business — onboarding with Spacebring has never been easier.

A human-oriented software development company. We care your customers' needs are met while you have a great project-flow experience with us—from investigation and development to post-release support. Since 2013, we have grown to a team of 120 devoted professionals and delivered over 300 projects for 17 markets worldwide. How it works? Discovery phase, which includes market research, competitive analysis, target audience analysis, and positioning Design. Thinking sessions and Empathetic interviews with your future customers Architecting, Prototyping and Design, UX/UI Engineering Testing Release Support Post-release support Your idea is matured, gets real, and thrives. Truly an unforgettable experience. Get the IT solution that achieves your goals and enjoy how your idea is coming to life.

Che IT is an award-winning web development partner for agencies, startups, small and mid-market businesses. With more than ten years of supporting companies in their development journeys, we can guarantee business-oriented flexibility, perfect communication, and valuable outcomes.  Our approach is to develop a practical solution that streamlines your business to enter the market or scale successfully. Working with Che IT gets you covered with asap web development tasks, from minor edits to custom product launches. We hear your ideas and match them with proper technologies to come true in weeks, not years⏱️ Clients say we save their lives, not only deadlines😉 You will get your projects` issues done without scaling the in-house team, extra costs, and nerve-racking management. Fixed-priced and packaged solutions will get you transparent budgeting and reporting every iteration.  You can rely on us for long-term collaboration even after the launch cause we`d love to provide you with full-cycle support and on-demand tech consulting. Get a discovery call with our advisor to make sure we are your total match partner🔥