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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

Reenbit is a сlient-focused software development company based in Eastern Europe. We stand out from the crowd because we're a solution partner ready to take customer challenges head on. We propose profound technical expertise and can work within any models that fit our client's needs, offering a dedicated team approach or staff augmentation. Our core specialities are software development and cloud consulting. Additionally, we offer mobile development, quality assurance, business analysis and business intelligence services. Cloud engineering services:Cloud consultingCloud developmentData engineeringSecurityDevOps maintenance and supportSoftware development services: Web developmentBack-end developmentFront-end developmentSaaS developmentDatabase consultingPOC, MVP, Prototype improvementWe are experts in the following technologies and tools:. NET: . NET Framework, . NET CORE, . NET 5/6, ASP. NET/CORE/MVC/Web Forms, Razor, Blazor, Entity Framework/Core, Web API, Roslyn. Azure: App Services, Function Apps, Logic Apps, Virtual Networks, Application gateways, Storage Accounts, Notification Hub, SignalR, Azure SQL, SQL Elastic pools, Data Factory, Event Hub, API Management, Service Bus, Azure Active Directory, Key Vault, Application Insights, Azure Cosmos DB, ARM Templates. Database: MS SQL, MySQL, PostgreSQL, Maria DB, Mongo DB, Cosmos DB, Azure Table Storage,  Redis DB, Azure Data Factory. Data Engineering: Power BI, Azure Data Factory, Azure Data Lake. CI/CD: Azure DevOps, Docker, Kubernetes, Github Actions, Jenkins. Cross-platform mobile development: React Native, Ionic. WEB: Angular, React, Node. js. Reenbit. Superior technical solution delivery to businesses on the verge of transformation.

Your reliable web/mobile development partner InventorSoft is a Ukrainian web and mobile development company that provides top-tier, pre-selected developers tailored to your specific needs as a SaaS company. Whether you're scaling from an MVP to a full product or preparing for acquisition by the largest organization, we help drive growth by hiring the best talent for your project. Our developers are highly skilled in core technologies and have expertise with AI tools like GitHub Copilot and OpenAI, allowing us to deliver projects up to 20% faster than competitors. ⭐ Our professional developers are experts in: Artificial Intelligence Java Angular Node. js React. js Vue. js Ruby on Rails . NET Design (mobile/web) Inventorsoft provides a perfect combination of: 1) Transparency 2) Quality recruitment selection 3) Trial Period Our company is not just a performer, but a reliable partner, which is why we have established and maintained successful long-term relationships with many clients, which we are extremely proud of. We are responsible for our actions and customer feedback because we value our reputation and clients. Why us: 10 years of expertise and spotless reputation 45+ SaaS active clients 40+ feedback on our work 30 own completed academies in different directions Our main industries Healthcare Data Analytics Supply Chain Fintech E-learning Renewable energy So, if you need high-quality product development, contact us!

Since 2007, Avivi has been developing business software, namely custom CRM systems and add-ons for off-the-shelf products, eCommerce project development, bot implementation, and application of blockchain technologies to solve business problems. The most significant were projects of an international logistics service for the delivery of goods from the USA, a unique CRM system for organizing the full cycle of production and sale of products of a sewing company, and the development of a Telegram bot for all types of transactions with leading cryptocurrencies. In working with clients, Avivi uses a purely personal approach to each individual order to create a product that best suits each individual business.

Everlabs is a full-cycle software partner born in Cherkasy, Ukraine and now collaborating with clients and teams across the US and Europe. For 11+ years our cross-functional squad of engineers, designers and PMs has delivered SaaS, e-commerce and logistics platforms that reach millions of users and helped founders like Trainual and GoldAvenue scale or exit successfully. Clients score us a perfect 5. 0 on Clutch for quality, schedule and value.   Ruby on Rails is still our happy place, ReactJS powers our front-ends and Swift/Kotlin keep us native, yet we reach for . NET, NodeJS or serverless whenever that’s the smartest fit. We pair that technical range with lean, transparent workflows and an ownership mindset that treats every project as a product, not just a backlog. Behind the scenes you’ll find a knowledge-sharing culture, professional–development budgets and a flexible hybrid setup — so if you’re a curious engineer, designer or QA looking to work with modern tech and real product challenges, we’d love to meet you. Follow #teameverlabs on Instagram and see how we work! 🚀

Gart Solutions is a DevOps and Cloud solutions provider and a trusted partner in Digital Transformation for businesses.  We tackle tech challenges associated with Digital Transformation, allowing businesses to focus on scaling.  Our solutions help customers improve efficiency, reduce costs, automate operations, eliminate human errors in development, achieve the next level of infrastructure maturity, accelerate time-to-market, and more.  Explore our case studies: https://gartsolutions. com/case/ 

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.

FIVE provides services in the following technological directions:Cloud servers and servicesDesktop applicationsWeb applications and websitesMobile applicationsEmbedded developmentWe have only happy customers! We have successfully completed every project FIVE engineers have been working on!We don't charge for management, all of our invoices include only technical hours. We propose architecture and project analysis for free!We know how to build efficient team and can find great talets to empower your business.

RIA. com is a Ukrainian IT company that develops AUTO. RIA, DIM. RIA, AGRO. RIA, and RIA. com — products used by millions of Ukrainians. The company’s mission is to build a trusted internet. With a focus on reliability, RIA. com’s marketplaces create transparent and secure markets for automobiles, real estate, and agriculture. RIA. com is part of the international group RIA. com Marketplaces OÜ, founded by Ukrainians. The company’s flagship products — AUTO. RIA and DIM. RIA — have long been familiar to Ukrainians. However, as an IT company creating and scaling these well-known marketplaces, RIA. com began its active development in early 2014. We consider this moment a new starting point, as both the company and its products have undergone significant transformations since then. Founded in Vinnytsia, RIA. com brings together specialists from across Ukraine. Our colleagues work from Lviv, Kharkiv, Odesa, Kyiv, and even from abroad on a temporary basis. By focusing on talent, we are building a nationwide online office, complemented by our physical office in Vinnytsia.

N-iX is a global software solutions and engineering services company that helps the world’s leading organizations turn challenges into lasting business value, operational efficiency, and revenue growth using advanced technology. With over 2,200 professionals across Europe, the Americas, and APAC, N-iX delivers expert solutions in cloud, data analytics, embedded software, IoT, AI, machine learning, and other technology domains. Being in business for over two decades, N-iX has worked with dozens of industry-leading enterprises and Fortune 500 companies to create value across a wide variety of sectors, including finance, manufacturing, supply chain, retail, and more. Our unique combination of business domain expertise and technical know-how enables us to effectively collaborate with ISVs, tech companies, and enterprises of all sizes. Thanks to the strong tech ecosystem and partnerships with AWS, GCP, Microsoft, SAP, OpenText, Snowflake, and others, we bring extra speed, scale and efficiency to more than 160 organizations across the globe. N-iX is recognized by numerous industry awards, such as CRN Solution Provider 500, ISG Provider Lens™, Modern Application Development services providers by Forrester, Everest Group’s Data & AI services PEAK Matrix, Global Outsourcing 100 by IAOP, etc.

Coderfy, a bespoke software development company, specializes in crafting tailored solutions for diverse industries, including web and software development, quality assurance, UI/UX design, and advanced ChatGPT chatbots. Based in Ukraine, USA, and the UK, we provide cost-effective and timely solutions, seamlessly executing projects aligned with your strategic goals. Experienced in: Custom Software Development🚀💻: We create scalable, robust, and tailor-made software solutions that drive efficiency and growth for businesses of all sizes. Web Design and Development🎨🌐: Our team of expert designers and developers craft stunning websites and web applications that leave a lasting impression on users while delivering exceptional functionality. Mobile App Development📱✨: We excel in developing feature-rich mobile apps that cater to diverse platforms, ensuring seamless user experiences. IT Consulting🤝🔍: Our seasoned consultants provide strategic guidance to help clients leverage technology for competitive advantage, offering insights that align IT with business goals. Custom ChatGPT chatbots🤖💬. Leveraging OpenAI's advanced language models, we design and develop custom ChatGPT chatbots that enhance customer engagement, streamline operations, and provide valuable assistance on your website in 24 hours. Stack Programming Languages📝💻: JavaScript, TypeScript, PHP Frontend🖼️🌐: React, Angular, Next. js, Nuxt. js, Vue. js, HTML/CSS/JS + JQuery, Bootstrap, Tailwind, yii2 Mobile App Development📱🚀: React Native, Flutter Backend⚙️🔧: Node. js, Express. js, Nest. js Databases🗃️🔍: MySQL, MongoDB, Redis, Firebase DevOps and Repositories🛠️🔄: Linux Repositories, Docker, Kubernetes, CI/CD, Git, Gitlab, Github Other Technologies🌐🔧: Nginx, Strapi, Sendgrid, Postman, Twilio, REST API, WebSocket Choose Coderfy for a customized approach to software development that's "Half the price & Faster twice!"

Ciklum is a global Experience Engineering firm that stands at the forefront of innovation, blending next-generation product engineering, exceptional customer experiences, and cutting-edge AI. Its global team of over 4,000 highly skilled engineers, experience design specialists and consultants joins forces to engineer technology that paves the way for the future of your business.