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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! 

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.

S-PRO AG is a leading Digital Innovation and Software Engineering company that specializes in serving fast-growing businesses & enterprises.   Founded in 2014 in Ukraine and headquartered in Zürich, Switzerland, S-PRO brings together 250+ highly motivated, experienced consultants, solution architects and software engineers in 3 R&D hubs in Europe and 5 business offices worldwide to deliver services on a global scale.  With a focus on Finance, Energy, Manufacturing and Healthcare sectors and a strong expertise in AI/ML, Blockchain, Web, and Mobile, we develop innovative digital solutions that create sustainable business value and increase our clients’ competitiveness in a constantly changing digital world. Numbers that matter:— 250+ professionals— 10 years on the market— 8 locations in 5 countries— HQ Zürich, Zug, Switzerland— ISO 27001, 27701 certified— Service Design certified by Harvard— 4. 2 years average customer engagement— 95% customer satisfaction rate— 450+ finished projects in 45 countries— 35% of all projects were completed for Swiss clients— 50+ AI & Data projects delivered over the last 3 years— 55% of all projects were completed for the Fintech— 20+ banking & finance products delivered— 65% of the company revenue comes from Fintech— 40+ core banking systems we work with

IoT, Digital Health, Fintech, and custom software Vakoms is a custom software development company, delivering end-to-end IT solutions and services, including IoT. Product development solutions Full cycle product development Prototyping and MVP development Firmware and embedded development Software development services Internet of Things (home automation), firmware & embedded software for digital health companies fintech development Web: web apps, APIs, Big Data and cloud solutions Mobile: native and cross-platform apps for iOS and Android Desktop: native and cross-platform apps for Windows, macOS, Linux Key technologies Python, Java, C/C++, Node. js, JavaScript, TypeScript, Angular, React, Qt, QML, Swift, Kotlin. Cooperation models Dedicated team Staff augmentation

Software Developers With Engineering Mindset Scalamandra: scale your team with senior engineers for lasting success. We help to achieve business goals by providing high-performing, on-demand teams of developers and developing software solutions. Our company is involved in developing web platforms, analytical dashboards, and mobile applications. We make it possible for our clients to take the next step in modernizing legacy applications using functional programming and cutting-edge technologies Scala, Rust, etc. Our name represents two ideas. Scala is our favorite programming language and Salamandra is a lizard, which is listed on the IUCN Red List. Scalamandra is a remote-first international company, that helps companies scale their engineering teams by providing them with software developers. Services We Provide: Staff Augmentation Web Development Mobile development UI/UX We support the following technology stack: Scala Akka Apache Kafka Slick JavaScript TypeScript Node. js React. js Java Kotlin Docker Kubernetes AWS Google Cloud Platform

At Voicerhub, we specialize in transforming customer feedback into actionable insights. With years of experience in CX analytics, AI-powered speech analysis, and multi-channel feedback management, we help businesses enhance customer satisfaction and improve their online reputation.  Our solutions, Voicer and TONY, empower companies to gather and analyze reviews from multiple sources, optimize customer interactions, and boost ratings on platforms like Google Maps. We’ve successfully implemented our technologies in global enterprises, helping them strengthen their brand and customer trust.  We understand that every business is unique, which is why we tailor our approach to your specific needs. Whether you’re a retail chain, service provider, or enterprise-level company, Voicerhub provides the tools and expertise to elevate your customer experience. Let’s build stronger connections with your customers together!     У Voicerhub ми перетворюємо відгуки клієнтів на цінні інсайти. Завдяки досвіду в CX-аналітиці, AI-обробці мовлення та багатоканальному збору зворотного зв’язку, ми допомагаємо бізнесу підвищити рівень задоволеності клієнтів і зміцнити репутацію в інтернеті.  Наші рішення, Voicer та TONY, дозволяють компаніям ефективно збирати та аналізувати відгуки з різних джерел, покращувати взаємодію з клієнтами та підвищувати рейтинги на таких платформах, як Google Maps. Ми успішно впровадили свої технології у міжнародні компанії, допомагаючи їм зміцнювати бренд та довіру клієнтів.  Ми розуміємо унікальність кожного бізнесу, тому адаптуємо підхід відповідно до ваших потреб. Незалежно від того, чи ви роздрібна мережа, постачальник послуг або велика корпорація, Voicerhub надасть вам інструменти та експертизу для покращення взаємодії з клієнтами.  Будуймо міцніші відносини з вашими клієнтами разом!

Software Design and Development Partner. At OTAKOYI, we believe that the technology world can do better, and we start with ourselves. When you partner with us, you gain a trusted ally to navigate the challenges and opportunities of the ever-evolving tech landscape. Our collaboration goes beyond mere partnership; it reflects our deep commitment to your project’s success, anchored in radical honesty and transparency. We take pride in our enduring partnerships with industry leaders such as Lenovo, Philip Morris, Credit Agricole, METRO, Engel & Völkers, KIA, Kraft Heinz, OKKO, Knight Frank, ETA+, WWG, MBC, Landmark Group, and NAI Global. Behind each name is a story of long-term, trustworthy collaboration and inspiring mutual results. Our services include:- End-to-end Software Development- IT Staff Augmentation & Team Extension- IT Consulting & Digital TransformationWe cover the following expertise areas:- AI, ML, and Data Science- Application Re-Engineering- Software Development for Startups- Web App Development- Mobile App Development- DevOps & Cloud Services- Blockchain- Product Design

ORIL is a custom software development company established in 2015 with an R&D Center in Lviv and Headquarters in the US. The company specializes in PropTech and also develops technology solutions for various industries, including FinTech, IoT, HealthTech, Marketplaces, and Transportation & Automotive. By focusing on understanding and addressing the needs of each client, we have earned the trust of over 50 companies, making us a reliable partner. Our services include:– Product Strategy Consulting– UI/UX Design– Product Development– Digital Transformation– Salesforce Development– AI EnablementWith over 9 years of experience in web and app development, ORIL has successfully delivered business solutions to clients worldwide. From product strategy and design to implementation and scaling, we offer full-cycle software development. We create web and mobile applications, as well as complex custom platforms, designed to boost user engagement and meet industry demands. We also support organizations in their digital transformation, enhancing operational efficiency and strengthening their market presence.   

Software Delivery Driving Business Growth. We know how important it is for businesses to have an effective solution.  We primarily specialize in Logistics, Oil&Gas, Supply Chain, Real Estate, and E-commerce. Here's why our clients appreciate working with us:smooth workflow;deep understanding of internal tasks and problems;appealing design;flexible project planning;trustworthy team.

Solidity is a leading IT company renowned for delivering innovative and reliable solutions to businesses around the world. Specialising in high-performance systems, Solidity ensures that customer's operations run smoothly around the clock. The company's expert team, trusted technologies and commitment to innovation make it a preferred partner for organisations seeking to optimise their business performance. Solidity partners with global vendors to deliver cutting-edge solutions that ensure security, operational efficiency and competitiveness in a rapidly evolving marketplace.  The company's core services include Financial Security, providing advanced fraud prevention and risk management solutions; Custom Software Development, creating scalable solutions tailored to business needs; and IT Infrastructure Solutions, designing and supporting systems that optimise business operations and ensure business continuity.  With strong partnerships with industry leaders such as IBM, Cisco, Check Point and Red Hat, Solidity integrates the latest technologies to deliver secure, reliable and high-performance solutions that enable businesses to thrive in a dynamic digital landscape.

Cloud and Agile Transformation Company. Symphony Solutions is a Dutch based cloud transformation company. Throughout the 10-year history, we have grown to nearly 600 people in 5 different locations. The company’s investment in Agile Transformation, supported by LACE and a growing core of SAFe 4. 6 certified experts, has led to consultancy for their biggest clients as well as those in communities they serve. Areas of Expertise: Cloud Solutions iGaming Dedicated teams/ ODC (Offshore Development Center) Agile Transformation Service Design Educational Services About Company: 5 locations: Netherlands, USA, Poland, Ukraine, Macedonia 4 delivery centers: Netherlands, Poland, Ukraine, Macedonia 35+ international clients In business since 2009 550 employees Symphony’s commitment has always been to invest time and attention into the people and trusting them to focus on the business. That is the chain. When that happens, the people own the projects, the clients own the results, and the partnership is strengthened and perpetuates.

Software Development Partner. VNV Solutions is a fairly young, but experienced and reliable company, we are only 1 year old now, but expanded to 60 people already and we dont even think to stop. In fact, VNV Solutions is a company with an innovative approach to how modern IT companies can work,we focus on business domains, not on technologies. We are not just a team of engineers who are experts in technologies, we are a team that has a common goal, values, and most importantly - expertise in business domains and are used to talking with our clients primarily about business value, and not about engineering issues. We use non-standard and new for our field sales methods, the latest approaches to development and working with the client, we are a "Show Kitchen" in the IT market, which is why our clients are so comfortable working with us.