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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! 

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!

Full-Cycle Software Development Company,Since 2000 Established in 2000, DevCom is a full-cycle custom outsourcing software development company. DevCom handles project development throughout the entire lifecycle: starting with strategic planning, through application development and quality assurance, to technical delivery, production maintenance, and support. Services: Custom Software Development Web / Desktop / Mobile Development Dedicated Development Teams IT Support Testing / QA Expertise: Cloud (AWS, Azure) DevOps SaaS API App Re-Engineering Custom Business Management Systems, CRM/ERP Databases Business Intelligence Industries: Logistics and Transportation Healthcare Finance Nonprofits Construction and Engineering Retail and E-commerce Sport and Entertainment

IPTel is a communication, automation and sales platform that quickly adapts to your business needs. We have been operating on the market for over 10 years, helping businesses optimise internal processes, unify communication channels, save time, and increase sales. 500+ businesses and government institutions have already entrusted us with their communicationsOver 500 custom projects deliveredAverage partnership duration — 4 yearsIn 2024, IPTel received the Seal of Excellence award from the European CommissionWe were the first in Ukraine to implement the Voice Fake Detector — a solution for detecting fake voices. We also actively customise functionality to meet business needs, which is why we are chosen by financial, medical, governmental organisations, and contact centres.  

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.

We are a team of product experts who can transform your vision into a thriving business with digital products that drive profits.  Quickly put together MVPs, test out hypotheses, check the market, help figure out the product direction, prioritize features, and in line with Lean principles, work on improving specific product metrics. Our people, processes, and technology are all fine-tuned to help our clients create thriving ventures. Our services:- Product Discovery- SaaS Application Development- Software Project Rescue- Agile Product Development Teams- Startup Consulting

Friction-Free Offshoring. Quality, Guaranteed. We love offshoring but hate when people get lousy products because of poor communication or bad developers. Our mission is to bridge the gap between businesses and offshore developers. We manage small-medium sized IT projects to make sure businesses get the quality product they need at a price they can stomach. COMMUNICATION IS KEY Worried about language (or culture) barriers? We know a breakdown in communication can stop a project dead in its tracks. That’s why we have native English, German and Ukrainian speaking staff who understand the language, and the culture. CUTTING EDGE TECHNOLOGY We use the right technology to get the job done, mixing old workhorse tech with the best of what’s new. In the end, you get the perfect mix of usability and innovation to keep you running for years to come. IT’S THE QUALITY, STUPID Other guys over-promise and under-deliver. We don’t want you to settle for less than you deserve. We deliver a polished product that you can be proud to show off and use.

At Blackbird, we empower startups to thrive. Specializing in Seed and Series A companies, we extend runways by enabling engineering teams to focus on growth-driven features while we take care of everything else. With offices not only in Ukraine but also in Colombia, Spain, and Poland, we bring deep expertise in SaaS, cloud-native products, frontend applications with React, and both native and cross-platform mobile apps—all within a fast-growing tech ecosystem that operates with zero downtime. Want to know how we can help? Reach out! Our team will conduct a comprehensive tech assessment and present tailored options to elevate your startup to the next level.

Fintech Software Development Partner . doCode is your global software development partner from Eastern Europe. One of our main goals is to help businesses go more digital through our engineering and development expertise. We thrive specifically but not limited to Fintech and we provide services from MVP mobile banking apps to complex enterprise-grade financial solutions. If you share your concept, with our expertise, we’ll make it a successful product. Official AWS Partner ISO 27001 certified Our services: - Expert Consulting - High-level Architecture Development - Proof of Concept - Efficient Cloud Solutions - Full-cycle Product Development & Support - Product Maintenance & Support Cooperation models: - Project development (outsourcing model) - IT staff augmentation - Dedicated teams (outstaffing model) The technologies we use: Front-End: React. js, Vue. js, Angular Back-End: Node. js, Java, GoLang, . NET Mobile Development: React Native, Flutter, Kotlin, Swift DevOps: Amazon Web Services, Google Cloud Platform Design & BA: Prototyping, UI/UX design, Product design & Analytics, Design research & analysis Our already made solutions: CRM systems Administration tools Monitoring systems Custom web platforms Custom mobile applications Data Analytics Fintech: Onboarding & AML | KYC | KYB UK Local Payments | SEPA | SWIFT Currency Exchange Mobile banking | Digital Wallet Card issuing & management BaaS API implementation

Product development company that drives growth COAX has been transforming bold concepts into market-ready products for 14 years. Our team offers full-cycle development services for startups and established businesses in B2B and B2C markets. WHAT WE DO Product discovery and strategy development Fast and scalable MVP development Implementation of complex cloud solutions AI/ML integration and custom model development Product-as-a-Service Seamless API integrations IoT integrations of any complexity Bespoke web, mobile, and cross-platform development Legacy software modernization and reengineering User-centered and sustainable UI/UX design Comprehensive quality assurance and testing automation DevOps and Site Reliability Engineering (SRE) IT consulting and ongoing post-launch support Digital marketing We're all about delivering excellence, and we do it fast. More than just development – we offer deep commitment, expertise, and community support. We drive growth through technology, helping our clients find shortcuts they never thought of – and win user hearts with optimal solutions. INDUSTRIES WE KNOW BEST ✓ Travel & hospitality ✓ Ecommerce ✓ Finance ✓ Transport & logistics ✓ Real estate & construction ✓ Health & fitness We build lasting partnerships, earning your trust with tangible results. That's why we choose to focus on several niches instead of trying to be Jack of all trades – and it pays off with in-depth expertise and ability to deliver exceptional solutions. WHY CHOOSE COAX ➊ A team adjusting to your schedule and needs ➋ Guaranteed data protection ➌ Skilled engineers with a holistic approach to development ➍ Efficient and transparent processes ➎ Expertise in your niche Need a hand with developing software solution that hits the spot?

Link The World To Digital. We are a leading software development company based in Ukraine, specializing in delivering tailored software solutions and top-notch IT consulting services globally. Our expert technical team, headquartered in Kyiv, consists of highly skilled web and mobile developers, inquisitive business analysts, talented UI/UX designers and QA engineers, and dedicated project managers. As a software outsourcing company and web development agency, we thrive on unlocking new opportunities for start-ups and establishment businesses that are looking to drive innovation and growth. Our main values are high-quality work, agile development methodologies, and excellent communication with clients at all stages of work. We assist our clients in achieving digital transformation by serving as a strategic partner, which results in the enhancement of their products, acceleration of service delivery, optimization of operational efficiency, and expansion into new markets. We are rapidly implementing AI and machine learning solutions into our clients' products and evolving as an AI development company. Our services include: Discovery stage (Business analysis) UX/UI design Mobile App Development Web App Development QA and testing DevOps IT consulting Our holistic approach ensures that we address every aspect of your project, from concept to deployment, to provide you with the most effective digital solutions. Proudly recognized as an Upwork Top Rated Agency, we've consistently proven our commitment to delivering excellence and innovation in every project we undertake.

The «CIPHER PRO» company provides services in the field of information security and banking technologies in Ukraine since 1995. The main activities are protection of information systems of organizations, payment systems of banks, implementation and maintenance of remote banking systems, such as Client-Bank, Internet Banking, Web-Banking. Main activities:Development of cryptographic information protection systems of «CIPHER PRO» series:Development of cryptographic information protection systems (CIPS). Provision of services for implementation and maintenance of CIPS. Provision of services for the construction of certification authority (CA). Provision of services to support the registration and accreditation of CA. The integration of CIPS with automated banking systems (ABS). Development of cloud technologies for create and verify e-signature, encrypt and decrypt data.