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Techstack company is an international strategic technology partner with strong Ukrainian roots, delivering comprehensive digital transformation services worldwide. We unite nearly 200 experts across borders, combining staffing, engineering, and optimization services into one powerful offering. With over a decade of excellence, we’ve become a trusted partner for global businesses — 30% of which are $1B+ enterprises — delivering full-stack teams and empowering software engineering leaders. Rooted in our Ukrainian engineering heritage and strengthened by our international presence, Techstack unites the best of Eastern European technical excellence with global business practices, making us a partner capable of both precision in execution and vision in strategy. 💫 The Techstack Difference
Strategic Partnership:- Engineering with product ownership, aligned with your goals- Strong technical leadership and proactive delivery planning- Long-term scalability built into every architectureProfessional Excellence:- Senior-level expertise across all technologies- Cross-functional teams with diverse skill sets- Proficiency with modern tech stacksTransparent Communication: - Regular updates and detailed reporting- Direct access to your dedicated team- Clear project roadmaps & milestone trackingQuality-First Approach:- Rigorous code reviews and comprehensive testing protocols- Strict coding standards adherence- Industry best practices in every deliveryBusiness Value Focus:- Transparent pricing with no hidden fees- Resource optimization strategies- Value-driven development aligned with your goals- Scalable architecture design- User-centric development methodologyModern Technical Capabilities: - Cloud-native solutions- AI & ML integration|- Automated workflows- Agile methodology- Advanced DevOps practicesWe align with your product and business strategy, bring disciplined engineering practices, and build solutions designed for scalability, resilience, and long-term growth. Let’s build something that lasts! 

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.

ByteAnt is a web development agency and a software developer. We specialize in . NET, Azure and Umbraco CMS website development. Our software products: ByteEditor Website Builder for Umbraco CMS and ByteArbor Marketplace Builder.

The best tech is built by computer nerds. NerdySoft is a software development and consulting agency proudly established and run by a team of fintech nerds. We serve leading global companies in the FinTech and Banking industries. From the initial idea and design to architecture, implementation and ongoing maintenance, we effectively cover every step of the whole journey. With a strong engineering culture, our company helps to build secure and scalable software solutions loved by millions of users globally.

Intsurfing, established in 2016, specializes in big data. We build robust data pipelines, ETL processes, and data harvesting flows. Our team leverages Scala, Java, . NET, C#, and Python on AWS, GCP, and Azure platforms to ensure your data infrastructure is efficient, secure, and built to handle growth. Our clients gain the ability to collect, process, and analyze data from nearly any source—websites, images, PDFs, and multilingual documents. Whether you need real-time data for operational decisions or structured insights for long-term strategies, we make it happen. In 2020, we launched Nannostomus, a cloud-based tool that simplifies web scraping. It empowers teams, even those with minimal technical skills, to collect and utilize web data while keeping costs low.  Choose Intsurfing for your next big data initiative and benefit from the expertise behind 220+ completed projects.   

💪  An experienced design team of professionals for your business needs 📈  5. 0 avg. score on Clutch💼  50 positive Clutch reviews about our service🏆  Top Design Agency by Clutch 🎨  Top Logo Designers by ClutchWe are Ukrainian-based design büro providing design services for various types of businesses. Our mission is to create innovative and effective design solutions that help our clients succeed in their businesses and thrive in digital world. Since 2014 our team received more than 200 awards and released over 200 projects around the globe in 35 industries. Our services:🟢  Web design (corporate/ promo/ wow websites, landing pages, and e-commerce)🟢  Mobile/web app design (application will get robust functionality and a contemporary user interface tailored to your business needs)🟢  Branding (creating a visual identity that reflects your brand’s personality and values)👉 Throughout our collaboration, we ensure transparent management and clear results at every step of the process.

Onix is a full-cycle software development company that builds well-suited solutions to drive company outcomes for startups, small and medium-sized businesses. 1100+  Successfully delivered projects24+  Years of experience in software development55+ Countries represented by clients370+ Talented multi‑dimensional expertsWe’re a competent software development team that delivers reliable products for various industry domains:-> eLearning-> Travel & Tourism-> Healthcare-> FinTech-> Sports & Fitness-> Retail & E-commerce-> SaaSWe offer a full range of software development services to shape your idea into a viable product and help your business succeed. Our development services comprise well‑established methodologies and years of experience in building exceptional custom software solutions on time and within budget!Get innovative, secure, and solid products using our full-cycle software development services:-> Mobile App Development (iOS, Android, cross-platform solutions)-> VR/AR Development-> Web Development-> UI/UX Design-> DevOps-> QA-> Building a Dedicated Team-> Discovery Phase-> MVP Development-> UX Audit-> Lean InceptionOur solutions boost clients' business efficiency and satisfy users'expectations. We use a reliable and top-notch set of technologies to deliver products of the highest quality. Backend development: Python, Node. js, Java, Ruby, PHPFrontend development: React. js, Vue. js, CSS, HTML5Mobile development: Kotlin, Flutter, Swift, Objective-C, React NativePlatform customization: Shopify, WordPress, Salesforce,  Magento,OpenCart, CanvaVR/AR and 3D design: Unity, Visual Studio, Blender, Maya, Houdini, V-RayCloud storage: AWS, Azure, Google Cloud Platform,  Heroku, DigitalOceanOur software development model is fully transparent and efficient since we use the agile approach to manage the development process. Need help developing a web or mobile app?GET IN TOUCH WITH US FOR A FREE CONSULTATION!

Eventyr is a team of technical and business professionals who deliver advanced software development services for different business areas. We aim to build long-term, mutually beneficial relationships with our clients and solve their issues with cutting-edge software solutions. Your business is growing — we are growing together with you. Our company is a member of Sigma Software Group, which unites more than 9000 employees in 11 countries.  

Ukrainian tech agency simplifying business life & empowering brands using the latest echoes of ChatGPT/AI, AR/VR, web&mobile. Among our clients: -Ministry of Digital Transformation, -AZOV, -National Police, -Ukrzaliznytsia, -Intensfit.  Our core tech. stack: Laravel, Symfony, React. js, React Native, CMS WordPress, integration of ChatGPT AI models. Share your "echoes" of project with us and let's create something great! 

Your vision - our solutionVISO is a full-cycle software development company specializing in web, mobile, and AI-powered application development. We cater to businesses of all sizes, from startups to enterprises, providing innovative, scalable solutions that deliver measurable impact. Our AchievementsDelivered 30+ projects across various industries. Recognized for exceptional client satisfaction with a 4. 7/5 referral rate. Partnered with 25+ businesses, building lasting relationships Our ServicesWe offer a comprehensive range of services designed to bring your vision to life:Custom Software DevelopmentWeb DevelopmentMobile Application Development (iOS & Android)AI and Machine Learning SolutionsUI/UX DesignDiscovery Phase and Market ResearchQuality Assurance & TestingApp Support and Maintenance

StartupSoft is a trusted partner for augmenting your in-house team with remote, top-tier software engineers, including those specializing in AI/ML. Working with startups and Fortune 10 corporations, we ensure the perfect cultural & technical fit, and handle all the back-office management, so you can focus on what matters.

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