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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! 

One click to clarity!Спеціальна пропозиція для відвідувачів IT Arena 2025. Зареєструйся за посиланням https://clarity-project. info/registerВикористай промо-код ARENA-2025 та отримай безкоштовний повний доступ на 7 днів. Special offer for IT Arena 2025 visitors. Register at https://clarity-project. info/registerUse the promo code ARENA-2025 to get free full access for 7 days. Clarity Project integrates open government data into user-friendly products with a focus on public procurement and register data integration, enabling government agencies and businesses to make informed decisions.  Clarity Project is a Ukrainian analytical online platform that provides access to more than 140 state registers, Prozorro procurement/auction analytics, and the Antimonopoly Committee's decision database and DASU monitoring. The platform has about 1,000,000 users per month, and the database contains about 37,000,000 files. The platform provides services for checking and monitoring contractors (individuals, legal entities, and local governments), Prozorro procurement and auction analytics, analysis of court cases, permits, licenses, and passports, as well as tools for increasing sales.  We believe that the history of the platform itself is a successful case study for a Ukrainian product company. In fact, over the years of its existence, the platform has evolved from a hobby of one of its founders to one of the main competitors and products based on open data in Ukraine. Throughout its existence, the platform has developed without attracting investment. In 2024 alone, the company's revenue grew 3. 5 times. Also in 2024, the company successfully developed an MVP version of its product for the Albanian Antimonopoly Committee.

CiviMobile is a powerful, free mobile application that brings the core features of CiviCRM—the open-source constituent relationship management platform—to your fingertips. Designed specifically for non-profits, non-governmental organizations, political groups, sports clubs, and other community-focused entities, CiviMobile enables users to access and manage their organizational data seamlessly from any location and on multiple devices.  With CiviMobile, users can streamline their workflows and boost efficiency by managing contacts, activities, cases, and events directly from their mobile devices. Whether it's adding or calling organizational contacts, updating schedules, or tracking event participation, the app ensures essential tools are always at hand, making it particularly valuable for fieldwork and on-the-go operations.  In today’s mobile-driven world, where smartphones serve as indispensable organizers, CiviMobile takes productivity to the next level by enhancing time management and organizational processes. The app is available in 11 languages and, as of early 2023, is trusted by organizations across the USA, Germany, the UK, Australia, France, Canada, the Czech Republic, Belgium, and beyond.  CiviMobile is more than an app—it’s a companion for modern organizations striving to stay connected, organized, and effective.  

Blackthorn Vision is a software development company that specializes in creating custom solutions to meet any business needs. Founded by a team of experienced engineers, we’ve been providing our services since 2009. We are dedicated to helping companies bring their ideas to life and embrace innovations. Our team is focused on delivering quality products and supporting clients at every stage of their project’s lifecycle – from product discovery to implementation to post-launch optimization. Blackthorn Vision is there when you need us most. Reach out today and start making your vision a reality tomorrow!

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

Custom Software, B2C & B2B E-Commerce, CRM & ERP SolidBrain is a software development company represented almost worldwide. SolidBrain offers the development of commercial websites from scratch, namely from the analysis of business ideas and the creation of MVP to the deployment of full-fledged web resources. Our specialization is eCommerce projects, CRM, ERP, and B2B automation. That is why we know the nuances and master the tools of eCommerce. It sets us apart from the competition, and in turn, gives you the following advantages: 📎 obtaining an effective resource with an attractive interface and decent functionality; 📎 convenient and affordable site management; 📎 easy-to-use navigation of the commercial platform; 📎 the best implementation of your ideas thanks to our huge experience in trade and analytics; 📎 competent placement of important information on the main page that encourages consumers to take active action; 📎 working with a resource adapted to mobile devices and thus increasing your customer base; 📎 the ability to place more than 10 mln items in the online store with fast loading of product cards. 📌 The main task of SolidBrain is to make your company a leader among competitors, increasing clients profits. 🎯 Our main goal is to develop an effective concept for creating websites that can increase rankings and generate systematic income of the appropriate level. ⭐️ We are proud of: 📌 creation of effective functional tools that brings a high conversion of online stores; 📌 development of projects with corporate identity, attractive design and convenient usability; 📌 fast loading of pages on websites with a great variety of goods; 📌 deep analysis and accuracy of determining the target audience and its needs; 📌 establishing productive communication between business and end-users through proven techniques in the field of web design.

Intobi strives for innovation and progress while helping clients benefit from tailor-made tech solutions. We develop custom software applications to ensure both monetary gains and savings 💰As a tech partner, we take pride in our involvement across all phases of the project life cycle, encompassing business analysis, research, evaluation, UX/UI design, development, and support.  Advanced Services:💻 Web developmentIntobi provides end-to-end solutions for all Web-related necessities. Our strengths are user-centric SaaS platforms, admin panels, dashboards, CRM systems, etc.  📱Mobile developmentWe specialize in building functional and user-friendly mobile apps for both iOS and Android, using either native or cross-platform technologies.  🏢 Enterprise software developmentCRM, ERP, SCM, and EAM. Re-engineering migration maintenance. Expanding, modifying, and adding new functionality to existing systems.  If you're seeking a committed tech partner, feel free to reach out to us, and we will dive deeper into discussing your project.

At Velstadt, we empower organisations with cutting-edge cybersecurity services that ensure resilience against evolving cyber threats. Our expertise lies in delivering tailored security strategies in line with international standards such as ISO/IEC 27001, GDPR, NIS2 and others, helping organisations protect their critical information systems and maintain compliance.  Why Velstadt?→ Tailor-made Security Solutions - We adapt our approach to meet your unique business needs. → Innovative Technology - Leveraging the industry-leading tools, including our proprietary Threat Intelligence Platform. → Proven Expertise - Comprehensive hands-on experience securing organisations across all industries. Our Core Services:→ SOC-as-a-Service - 24/7 threat monitoring, incident detection, and automated response. → Penetration Testing - Identifying and mitigating/remediating vulnerabilities before attackers can exploit them. → Threat Intelligence - Delivering real-time insights on emerging threats, APT, IOCs, and IOAs, while our Threat Hunting proactively identifies and remediates hidden threats within the infrastructure before they escalate. → Dark Web Monitoring - Detecting leaks and exposure of sensitive data on hidden dark web platforms, forums, and other sources. → Cloud Security - Robust protection for your cloud infrastructure on AWS, Azure, and GCP. → Vulnerability Management - Detecting and addressing vulnerabilities to maintain a secure environment. → Security Consulting & Virtual CISO - Providing expert guidance to help organisations develop and implement robust cybersecurity strategies, manage incidents, and ensure regulatory compliance. At Velstadt, we don't just mitigate threats - we build security ecosystems that drive long-term resilience. Contact us today for a tailored security strategy that will keep your organisation ahead of cyber risks.

AltexSoft is a Travel and Hospitality Technology Consulting company. We work with online travel agencies, travel management solution providers, and travel tech startups to build custom software. Over 200 worldwide businesses (100 of which are US-based) have chosen us as their Technology Consulting Partner. Bespoke Product Development. We provide a full range of product development services, from idea elaboration through product engineering and introduction to the market to further growth and expansion. Our experienced business analysts dive into your business to completely get all your requirements, limitations, and challenges. Our team then adjusts the processes for your convenience to successfully deliver your product. It’s as simple as that. Our services include- Software Product Development- UX/UI Consulting- AI Strategy & Development- Data Science and Machine Learning- Enterprise Architecture ConsultingFocus on the Travel Domain. We leverage industry-specific knowledge and our experience to help companies in the travel industry stay ahead of the competition. - Dedicated Travel Technology Competency Center, which focuses on accumulating industry knowledge and transforming it into innovative solutions for our customers. - More than 100 customers in travel including Online Travel Agencies, Travel Management Companies, Destination Management Companies, SaaS providers in hospitality and airline industries, etc. - Voice in the industry: 4 million readers visit altexsoft. com blog yearly to learn more on travel and technology insights. Our YouTube channel additionally attracts 1 million viewers annually. - Experience working with major travel APIs and providers including Amadeus, Sabre, TravelPort, HotelBeds and many more.

✅ We effectively cooperate with non-technical clients, providing CTO-as-a-Service solutions. If you are at the beginning of the startup path, we are the right team to assist you with the technical aspect of your project. 🧩 If you already have a team and the product on the market, we can collaborate on a team augmentation basis. Our developers are proficient in English, attentive to details, and can efficiently work with your in-house engineers and managers. It will be a missing puzzle that will fit perfectly into your ecosystem. 🎯 Our main focus and expertise are in the following domains: - On-demand Map-based apps; - Social-networking apps; - Photo & Video apps; - Dating apps; - Sport and Fitness; - Wellness and Healthcare; - eCommerce; - FinTech. 💎 We have a proven 5-year history of successful consulting and full-cycle development cases in the digital area. 💻 Here is our tech stack:- Swift, Objective-C for iOS;- Java, Kotlin for Android;- Flutter & React Native for Hybrid apps;- React. js for web pages;- Node. Js for the backend. 🔐 We have high standards in code creation and contributed to the open-source dev community. But what’s more important, we have an organized delivery process, tailored for every project because no two cases are alike. For making our Code perfect, we integrate Unit tests, do daily Pull-Requests & Code Reviews, apply Automated testing, and use styling libraries, that allow us to keep the same pattern of coding when working as a team. 🌐 Our partners are located in Canada, the US, and Israel and we have successful cooperation cases in which our devs became dedicated team members of our partner’s company. It just feels like you are working with in-house product engineers. 📌 We are currently open for new collaboration so if you need a streamlined and proficient development team for your geolocation-based, social, or wellness project, feel free to get in touch with us.

ExpertiseWe specialize in delivering innovative IT solutions tailored to streamline payment processes and enhance financial operations. Our team excels in creating secure, scalable, and user-friendly systems designed to meet diverse business needs. Relevant ExperienceOur portfolio includes a cutting-edge digital banking solution, empowering financial institutions to offer seamless online banking experiences. From payment gateway integration to advanced security measures and intuitive interfaces, we have a proven track record of driving success for our clients in the fintech sector. Client EngagementWe prioritize understanding your unique business challenges and objectives. By offering personalized solutions and maintaining clear communication, we ensure our partnership leads to exceptional outcomes.  

Linkos Group is a leading Ukrainian IT company, specializing in developing innovative digital solutions tailored for business automation needs.  For over 25 years, Linkos Group has created IT products in e-reporting and e-document management, widely used by accounting professionals and businesses across the country.  Linkos Group product line: ⬢ Medoc is a program for e-document management and e-reporting. Winner of the international competition-festival of the best goods and services: "Choice of the Year 2019" and "Choice of the Year 2020" in the nomination "Commercial Program of the Year for Reporting and Electronic Document Management". Ukraine’s leading e-reporting and e-document management software, trusted for 25+ years. All reports, invoices, acts, and contracts in one platform, with iXBRL and SAF-T UA solutions.  ⬢ SOTA is a web service for e-reporting, tax invoices, contracts, and receipts with browser-based, secure workflows. Submit reports, sign documents, and register receipts. Includes a mobile solution for electronic consignment notes for all transportation participants.  ⬢ Cashalot is an all-in-one solution that integrates software-based cash registers, warehouse accounting, and comprehensive analytics for both cash registers and cashiers. Recognized as the best technological solution (The SUP — Union of Ukrainian Entrepreneurs — 2023 Award).  ⬢ CloudKey is a secure cloud-based electronic signature, provided and safely stored by the Key Certification Centre “Ukraine”. Sign documents anywhere, without being tied to specific hardware. Integrates seamlessly with popular software and e-services for citizens. ⬢ Linkos ERP is a next-gen ERP for efficient governance and operations. A flexible, service-oriented platform featuring low-code/no-code, AI agents, and operational analytics for accounting, finance, logistics, and HR. Scalable, secure, and compliant. ⬢ ISpro is a global ERP software package designated to automate accounting and management at enterprises and budgetary institutions.  ⬢ FlyDoc is a service for direct exchange of primary documents with counterparties from the accounting system.  ⬢ PTAH is a platform that provides roaming of electronic documents between different platforms.