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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.

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.

Founded in 2022, in the heart of Kyiv, Zapal aims to provide top-notch IT solutions with product vision. We ignite SMBs, startups, SaaS platforms, businesses, and NGO’s with our powerful engineering & design solutions.  Thus, you may focus on scaling up and traction, while we handle all the tech and push the boundaries of your project. Our clients’ success stories already include projects like: Investment platform development, Educational project release, Mental Health App creation, retail company & HoReCa software development & lots of others. Core Services to boost your project with Zapal:Web developmentMobile development based on Flutter and React NativeDevOps engineeringAutomation and manual quality assuranceUI/UX designIdentity and branding designZapal’s product-centric IT services are already in France, UK, USA, Canada and more to be deployed. Our expertise, dedication, and creativity has already developed innovative and cost-effective solutions for our clients, optimized and automated processes, and boosted sales for businesses. Zapal aims to build strong, long-lasting partnerships. You too?Let’s ignite your project with our powerful design and engineering solutions!Contact Zapal: hello@zapal. tech, or directly our CTO: bohdan. kucheriavyi@zapal. tech

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.

About Servus Systems Integration LLCServus Systems Integration LLC (SSI) is your trusted partner for seamless payment processing solutions. With over 20 years of experience in the payment industry, we empower businesses of all sizes to accept payments effortlessly across various POS terminals. Our team of experts leverages this deep understanding to develop and implement robust, brand-agnostic payment solutions. This translates to:Flexibility: Integrate seamlessly with any POS terminal you use, regardless of the brand. Proven Success: Backed by dozens of successful installations, our solutions are reliable and efficient. Peace of Mind: Benefit from our extensive industry knowledge and a team dedicated to your success. We understand that every business has unique needs. That's why we take a personalized approach, tailoring our payment solutions to perfectly integrate with your existing systems and workflows. Ready to streamline your payment processing and unlock new growth opportunities? Contact Servus Systems Integration today!Компанія Servus Systems Integration LLC (SSI) — ваш надійний партнер з питань інтеграції безпроблемних рішень для обробки платежів. Завдяки понад 20-річному досвіду роботи в платіжній індустрії, ми допомагаємо підприємствам будь-якого масштабу легко приймати платежі на різних POS-терміналах. Наша команда експертів використовує ці глибокі знання для розробки та впровадження надійних універсальних платіжних рішень. Це означає:Гнучкість: Безпроблемна інтеграція з будь-яким POS-терміналом, незалежно від бренду. Доведена успішність: Наші рішення, підтверджені десятками успішних інсталяцій, є надійними та ефективними. Спокій: Скористайтеся нашими глибокими знаннями галузі та командою, яка прагне вашого успіху. Ми розуміємо, що кожен бізнес має унікальні потреби. Саме тому ми використовуємо персоналізований підхід, адаптуючи наші платіжні рішення для ідеальної інтеграції з вашими існуючими системами та робочими процесами. Готові оптимізувати обробку платежів та відкрити нові можливості для зростання? Зверніться до Servus Systems Integration вже сьогодні!

SoftBees is a Ukrainian IT and FinTech company specializing in developing innovative fintech product solutions and assisting companies with digital transformation. With a strong focus on web and mobile development, we deliver cutting-edge solutions for the fintech, logistics, and retail industries. Our Expertise:FinTech Solutions: We develop robust and scalable fintech applications, including neobanks, payment systems, and investment platforms. Web and Mobile Development: Our skilled team creates user-friendly and high-performance web and mobile applications. Digital Transformation: We help businesses leverage technology to streamline operations, improve customer experience, and drive growth. Why Choose SoftBees:Proven Track Record: Years of experience in delivering successful projects. Expert Team: Highly skilled professionals with deep industry knowledge. Innovative Solutions: Cutting-edge technologies and innovative approaches. Client-Centric Approach: We prioritize our clients' needs and tailor solutions to their specific requirements. Let's partner to shape the future of technology together.

Eventyr Interactive is a leading game development studio with a team of specialists delivering full-cycle development and co-development services, art production, liveops and porting games, with a focus on mobile platforms and casual gaming. Additionally, we have teams working on PC/Console and AR/VR projects.

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.

Since 2008, we have completed over 1,800 successful projects for 500 clients across 23 countries. Our expertise spans industries such as retail, distribution, FMCG, pharmaceuticals, banking, manufacturing, and telecommunications. We collaborate with both large enterprises and smaller companies, helping them achieve their strategic goals. Our core areas include business analytics, integration, and data management. We implement modern systems as well as advanced analytics tools, artificial intelligence, and machine learning to ensure your data drives business growth. We cover the full cycle of projects for analytical applications on Qlik BI platforms, from designing an application to launching it into commercial operation. All applications are developed by certified, experienced consultants governed by world class development standards. These standards specify and regulate all aspects of creating high quality, easy-to-use, high-performance applications including rules for developing boot scripts, models and user interface, testing and documentation. With RBC Group, your business gets smarter. Follow us for the latest updates and valuable insights to stay ahead of the trends!

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.

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.