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Since 2013, Relevant Software has been delivering tailored software development solutions across diverse sectors such as fintech, healthcare, and construction, partnering with mid-sized businesses and large enterprises, including those in the Fortune 500. We also help our clients gain a competitive advantage, reach new markets, and enhance operational efficiency through innovative technologies such as IoT, machine learning, and AI.  With self-sufficient teams and timely delivery, we provide end-to-end software development solutions that solve complex challenges, ensuring your business stays efficient, competitive, and always relevant.  10+ years of software development excellence. 200+ projects across diverse industries. 150+ dedicated software engineers. 92% of the team are senior and middle-level engineers. 97% client retention for new projects and support. 80% employee retention with a 5-year average tenure.

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

Full-service Software Haven Volpis has expertise in diverse niches, from HealthTech and Social Media to Fleet Management, Navigation, Wellness, and EdTech. Now, we're ready to infuse innovation with your groundbreaking ideas. 🟢 WHY US: ▪ Care about relationships. “Clients for life” and “same boat” approach; ▪ Close collaboration - the more you'll be involved the better the result is; ▪ Deliver 101% result with Agile; ▪ Dedicated project managers and transparent delivery tracking to maintain ongoing feedback; ▪ The full-cycle development course, from Business Analysis and planning to QA and incremental improvements. ▪ Both Native & Cross-platform Mobile App development. 🟢 COMPANY PROFILE: ▪ Providing development services starting from 2016; ▪ 35+ team members and keep on growing; ▪ Leading Software Development Agency on Clutch in 2020. ▪ Top User Experience Company in GPS, Navigation & GIS on Clutch in 2024. 🟢 OUR SERVICES: ▪ Product Development; ▪ Mobile App Development (Native and Cross-platform); ▪ Android and iOS App Development; ▪ Full-Stack Web Development; ▪ Discovery Phase & Business Analysis; ▪ UX & UI Design (Web and Mobile); ▪ UX Research and audit; ▪ Product Redesign; ▪ Quality Assurance & Project Management; ▪ Maintenance and Support; ▪ Staff Augmentation. 🟢 TECHNOLOGIES: ▪ Mobile App Development: Android App Development (Java, Kotlin), iOS Development (Objective-C, Swift), Cross-platform App Development (Flutter); ▪ Web Development: JavaScript and related Front-End & Back-End frameworks (React. js, Vue. js, Node. js, Express. js, Nest. js), TypeScript; ▪ UX & UI Design: Figma, Sketch, InVision, Adobe Creative Suite 🟢 BUSINESS MODELS: ✔Time and Material (you pay exactly for the time spent on delivery) ✔Fixed-Price (we estimate the project scope and give definitive cost numbers) ✔Dedicated Team (our engineers get embedded into your team for the project timeframe and adopt your corporate culture)

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.

Uitop is a UI/UX design and development agency that creates UX-first SaaS interfaces that are easy to scale and sell. Using a result-oriented design process, we have helped more than 108 software startups build interfaces for their platforms that are now recognized by industry-leading companies and associations, investors, corporate users, and generate revenue.  

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.

Forbytes, a dynamic technology company headquartered in Wrocław, Poland, is committed to driving digital transformation through innovative software solutions. Founded in 2011, we have grown into a trusted partner for businesses across Europe and the US, delivering cutting-edge solutions that empower growth and efficiency. With a focus on e-commerce, BI, data engineering, system integration, and AI, we deliver tailored solutions for diverse industries, including retail, real estate, fintech, gaming, logistics, travel management and more. Our team of skilled engineers leverages PHP, . NET, and NodeJS to create high-quality, efficient software that drives growth and transformation.

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.

Where the magic happens. We make healthcare and insurance software that works for humans, not the other way around. How We Work: 1. Listen & Learn FirstBefore we write any code or design any screens, we take time to understand what you're really trying to solve. Your challenges become our challenges. 2.  Radical HonestyNo fancy promises or complicated jargon. We tell it like it is, share progress openly, and tackle problems head-on. 3.  Brilliant in BasicsSmall things make big differences, especially in healthcare and insurance. We're the team that catches what others miss.  

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.

AXLES is a software development company based in Lviv. We build products from scratch and maintain existing systems in health, sports, video/image processing and social media domains. AXLES cares about clients' success. We focus on our team expertise development in mobile, web development and QA to bring the best value to people that we work with.

Our company has extensive expertise related to the creation of web forms and the generation of QR codes. Thanks to extensive experience in the retail business. We are happy to adapt our solution to your needs.