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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

You’ve got the strategy. We turn it into working solutions. For 20+ years, Sigma Software has worked with Fortune 500 companies, global vendors and technology start-ups. Our mission is to help innovation leaders move critical initiatives forward by aligning teams, systems, and priorities. With 1,800 engineers in AI, data, cloud, embedded, and cybersecurity, we deliver solutions that scale and last, with ISO-certified quality, security, and compliance embedded from day one. Strategic Initiatives we support:AI Adoption – use AI where it brings tangible value, starting from first pilots and scaling to wider use. Digital Product Innovation – create new software or add digital layers to existing products and services, built with security and compliance in mind. Experience Design – shape journeys across apps and portals so users reach the right outcomes with less friction. Regulatory Compliance – navigating the regulatory landscape complexity and translating standards into working processes for audit-ready operations. Operational Efficiency – replace slow or manual work with modern, automated solutions that cut cost and effort. Managed Services – ensure stability, security, and uptime without draining internal teams. Our work goes beyond solution delivery. Sigma Software Labs works with startups to shape and test new ideas. Sigma Software University not only grows future engineers but also helps our clients build internal capabilities through tailored literacy programs and training. Our R&D teams experiment with emerging technologies early, so when they become relevant, our clients can adopt them faster and with less risk. Together, this cycle of delivery, learning, and exploration makes us better partners and strengthens the outcomes we deliver.

Trusted software development partner. Brainence is a software development company building first-class products and growing development teams. Over the past 7 years, we've teamed up with over 50 startups and established enterprises, helping them create impactful software solutions and hire top tech talent. Our services: Full-cycle custom software development Dedicated engineering teams for hire Web and mobile development SaaS development and cloud migration Customization development UI/UX design Quality assurance and testing DevOps Our technology stack: ReactNative Angular React . NET . NET Core Node. js ASP. NET

With our no-code tool expertise, including Bubble. io, Webflow, Adalo, Glide, and many more, we can turn your ideas into reality in just a few weeks! Our services include the discovery stage (business analysis), UX/UI design, website development, and mobile and web app development. As a part of the Uptech family, a renowned product development company, we have access to the latest technologies and resources. Our team of experts can use both no-code and code approaches to ensure the best possible outcome for your project. With over eight years of experience, we can help you launch and validate your idea quickly and affordably. Save time, money, and years of headache by choosing modern, powerful no-code solutions tailored to your needs!

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! 🚀

IT makes sense. Web / Mobile / Desktop apps AI / Machine Learning IoT

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! 🚀

At Recoded Agency, we deliver impactful digital solutions specializing in Webflow and WordPress development. We create websites that combine innovation, functionality, and aesthetics to drive measurable results. Recognized with two awards on Awwwards. com, our expertise in custom animations and seamless user experiences ensures our projects meet the highest industry standards. Partner with us to elevate your digital presence with precision and professionalism.

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!"

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.

“Vchasno” offers digital solutions for simple and transparent business management, including electronic document management, HR process automation, issuance of electronic receipts, creation of secure digital signatures, contract exchange with partners, processing of waybills, and submission of reports for private entrepreneurs. All services are provided online — quickly, conveniently, and with full legal security.  Vchasno’s digital services are part of the Ukrainian product IT company group — Vchasno Group. Vchasno offers the following range of services: Vchasno. EDO — a convenient service for managing all your documents in one place: create, sign, exchange, and store them online. Vchasno. Kadry — an HR electronic document management service. Vchasno. Kasa — a software-based cash register (PRRO) for issuing receipts and fiscalizing payments. Vchasno. KEP — a secure digital signature service. Vchasno. Zvit — a unified platform for small and medium-sized businesses, enabling you to prepare and submit reports, sign documents, and manage bank accounts from a single dashboard. Vchasno. EDI — a solution built on international standards to automate and optimize electronic document flow. Its main goal is to digitize all document-related processes across industries — from retail and logistics to banking. Vchasno. TTN — a reliable tool trusted by thousands of carriers and suppliers. It simplifies goods tracking and digitizes the exchange of waybills.