Find a company

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.

Sombra: Turning tech challenges into success. Sombra is a global software development and consulting company. With over 335 experts across Europe, Latin America, Canada, and the US, that develops, crafts, and delivers IT solutions in financial services, healthcare, e-commerce, energy, logistics, telecommunications, and many others. In an industry where grand promises often overshadow what really matters, we focus on getting things done right for over 10+ years. We cut through the buzzwords to deliver the right solutions for your business with real impact and measurable results. With an average client engagement of nearly 4 years and a Net Promoter Score of 84, we build enduring relationships that adapt to your evolving business needs. With 98% of our projects delivered on time and within scope, we bring the right expertise to complement your tech strategy. Choose Sombra as your strategic partner for solutions grounded in reality, driven by your success, and always done right.

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!"

Since 1999, UST has collaborated with the world's leading companies, creating a powerful impact through transformation. Our digital solutions, proprietary platforms, engineering expertise, R&D, and innovation ecosystem transform key challenges into impactful, disruptive solutions. With deep industry knowledge and a future-ready approach, we bring expertise, innovation, and agility to our clients’ organizations—delivering measurable value and driving positive, lasting change for them, their customers, and communities worldwide. In 2022, UST expanded its presence in Eastern Europe by acquiring the Ukrainian outsourcing company ITernal Group, marking its first office in Ukraine. This acquisition strengthened UST’s position in the Ukrainian market and contributed to the development of the local IT ecosystem. (inventure. com. ua).  In 2024, UST further expanded its SAP partnership into the Ukrainian market in the Sell and Service areas, achieving Silver partnership status.  Together, with 30,000+ employees across 30+ countries, we build for boundless impact—touching billions of lives in the process. For more insights, watch this discussion.  

DevIT Group is a Ukrainian company with over 11 years of expertise in the web industry, specializing in e-commerce solutions. E-commerce is our core focus, and we pride ourselves on knowing the industry inside out. Whether it’s custom app development, advanced integrations, or creating seamless online experiences, we have the skills and experience to bring your vision to life. 🏆 Shopify Partner since 2015💻 150+ passionate experts 💪 🔧  9 own Shopify Apps🌎 Over 550 successful projects for clients worldwide. With a global client base and a proven track record, we’re ready to take on your project and help your business thrive. 💬 Curious or have a project in mind? Drop a message.

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.

Intellectsoft is a digital transformation consultancy that provides cutting-edge engineering solutions for global organizations with the mission to help enterprises accelerate the adoption of new technologies, untangle complex issues that always emerge during digital evolution, and orchestrate ongoing innovation. Intellectsoft has been named as Top Custom Software Development Company in 2024 by FirmsTalk, Top App Development Company in 2024 by Business of Apps and received over 16 awards in 2024 alone. The Company’s services portfolio offers strategic IT consulting, CX design, development, and full lifecycle management of custom software products and applications, and system integration. Whether it is a consumer-oriented app or a transformative enterprise-class solution, the company leads the process from ideation and concept to delivery and provides ongoing support through its IS360 framework.

Straight talk and smart execution for leaders making critical technology decisions. We combine technology expertise with sharp business thinking to build software solutions that last.

We're a full-cycle consulting and software development company, with expert product teams experienced in Finance and Media & Entertainment, with a special emphasis on Ticketing. At Softjourn, we turn ideas into working software and are passionate about our work. Our team specializes in creating software for fintech, event ticketing, and media companies. We know your industry and speak the same language.  We work closely with our clients from start to finish. Our engineers use their skills and industry knowledge to build software that meets your current needs and helps you grow. As technology changes, we proactively keep up with new developments to ensure your business stays competitive.

BuildApps is at the forefront of developing innovative digital solutions tailored to automate and address the needs of small and medium-sized businesses. With our headquarters in Ukraine, our full-cycle company excels in transforming ideas into software excellence through expert design and development. Founded by tech leads with extensive professional backgrounds, we provide expertise at every level of our operations. We are passionate about our work and committed to delivering outstanding results. Each project is handled with enthusiasm and precision, ensuring that our solutions effectively meet client needs and deliver significant value.

Our teams work best as single product engineering units, with goals such as growing an MVP towards product-market-fit, scaling technically and product-wise, or acting as R&D teams within larger companies building product MVPs or pivoting. WHY REBBIX TEAMS ARE EFFECTIVEStrong engineering managersTrack record in building successful online marketplaces and travel productsCo-located teamsResults-oriented cultureOUR EXPERTISEEngineering managementSoftware developmentGrowth & SEOProduct designProduct managementSRE & DevOpsData Analytics

We engineer software with Radical Efficiency. Radency provides full-cycle development services covering every aspect of building digital products. The solutions we engineer range from customer-facing mobile apps, to complex web applications. Here’s what our clients appreciate the most about Radency: ✔️ Engineers selected from hundreds. Radency engineers go through rigorous selection and our competitive in-house training and certification program. ✔️ Result Focused, not Hours Focused. We achieve maximum efficiency through expert development and a reliable process of continuous iteration and communication. ✔️Dedicated product teams. We build an expert team around each project. The team is solely committed to one product and works directly with a client over a long-term period. Services we provide: - Custom Software Development (Web & Mobile) - Team extension & IT Staff Augmentation - UI/UX Design - Quality Assurance