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Established in 2008Offices in Kyiv (Ukraine) and Warsaw (Poland)100+ completed IT projects50+ clientsMajor domain expertise: e-Commerce, Logistics, Games, Security, Telecom

Software engineering and IT consulting Yalantis is a distinguished software engineering and IT consulting company with over 15 years of experience, boasting ISO 9001, ISO 27701, ISO/IEC 27001 and AWS certifications. With a network of development centers spread across Europe and a team of over 500 highly qualified experts, we are well-equipped to deliver exceptional solutions. Our esteemed clientele includes industry leaders such as Toyota Tsusho, Bosch, Zillow, KPMG, Google X, RAKwireless, Orbis Systems, and Healthfully. Our expertise spans IoT, AI and ML, BI and Analytics, Big Data, Data science, Cloud & DevOps, Cybersecurity, Performance engineering, RPA, Low code solutions, UI and UX design, Edge computing, and more. We cater to a diverse range of industries, including Energy and resources, Fintech, Healthcare, ISVs, Logistics, Manufacturing, Real estate, and Automotive. Our comprehensive suite of solutions encompasses SaaS development, end-to-end business solutions, digital transformation, mobile software products, communication tools, and blockchain integration.

Prozori Solutions is a Ukrainian software development and R&D company committed to empowering businesses, startups, and public sector organizations with secure, scalable, and high-performance software solutions. With over 15 years of experience and a team of 80+ professionals, we leverage cutting-edge technologies to drive digital transformation, streamline operations, and foster innovation. Beyond technology, we actively contribute to social impact initiatives, playing a key role in Ukraine’s digital transformation, particularly in Education, Procurement, and Healthcare. Our solutions help modernize public services, improve accessibility, and enhance transparency.

 GRT is all about creating smart, scalable solutions that drive real results. With over 12 years in the game and 120+ successful projects, we’ve helped businesses like yours turn big ideas into impactful products.  Here’s what working with us looks like: 🚀 Tailored Solutions, Tangible Results - Logistics app? We cut delivery wait times by 34% for one of our clients. -Healthcare IoT solution? 96% bug-free performance in just three months for another.  🤝 A Partner, Not Just a Provider - We don’t just take your project and run. From discovery workshops to regular updates, we collaborate with you every step of the way.  🛠 Expertise You Can Trust - We specialize in logistics, healthcare, and entertainment apps, but we are not limited to those. - Cutting-edge tech stack: Flutter, Laravel, Vue. js, AWS, and more.  🔄 Processes That Work for You - Discovery → Design → Development → Support—our milestone-driven process ensures clarity and results at every stage.  At GRT, we focus on what matters to you: delivering solutions that scale with your growth, delight your users, and create measurable value.  Let’s build something extraordinary together. Ready to chat?

Leobit is a full-cycle . NET, AI, and web application development provider for technology companies and startups primarily located in the US, EU, and the UK. We have representative offices in Austin, TX (USA), Tallinn (Estonia), Kraków (Poland), London (UK) and the development center in Lviv (Ukraine) with 170+ talented software engineers, architects, QA experts, and UI/UX designers. Our Achievements:Microsoft Solutions Partner - Digital & App InnovationISO 9001:2015 and ISO 27001:2022 CertifiedISTQB Platinum PartnerTop . NET Developers in 2025 by ClutchCustomer Service Department of the Year in 2025 by Stevie® AwardsLeobit has successfully delivered over 150 well-designed and well-factored web & mobile applications to technology companies ranging from Fortune 500 firms to Silicon Valley startups. Our Services:. NET software developmentAI/LLM software developmentCustom software developmentDedicated development teamWeb app developmentMobile app developmentCloud developmentSoftware architecture designUI/UX designBusiness analysisQuality assuranceApp support & maintenanceTechnology consultingOur Key Technologies:Microsoft Stack: . NET, ASP. NET, C#, Azure, WCF, Entity Framework, MaUI, BlazorWeb/Frontend: React, Angular, Vue, jQuery, TypeScriptBackend: . NET Core/C#, Ruby, Node, PHP, PythonMobile Technology Stack: iOS, Android, Flutter, Swift, KotlinAI integration

Sombra: Turning tech challenges into success. Sombra is a global software development and consulting company. With over 335 experts across Europe, Latin America, Canada, and the US, that develops, crafts, and delivers IT solutions in financial services, healthcare, e-commerce, energy, logistics, telecommunications, and many others. In an industry where grand promises often overshadow what really matters, we focus on getting things done right for over 10+ years. We cut through the buzzwords to deliver the right solutions for your business with real impact and measurable results. With an average client engagement of nearly 4 years and a Net Promoter Score of 84, we build enduring relationships that adapt to your evolving business needs. With 98% of our projects delivered on time and within scope, we bring the right expertise to complement your tech strategy. Choose Sombra as your strategic partner for solutions grounded in reality, driven by your success, and always done right.

IdeaSoft is an EU-based custom software development company with more than 8 years of experience and 350+ delivered projects. We provide innovative solutions for early-stage startups and implement high-tech technologies into enterprise ecosystems.  IdeaSoft is an official partner and member of Sigma Software Group since 2021.  OUR AREAS OF EXPERTISE: Blockchain solutions & Web 3 DeFi & CeFiSmart Contract Development Fintech & Banking Web & Mobile Development (iOS, Android)QA Testing & Technical SupportUX/UI AI/ML IT Consulting & Product DesignWe have a proven track record of successful project launches, contributing to over 350 large-scale initiatives across corporate, enterprise, and government sectors.  

UNITY-BARS is a Ukrainian IT company specializing in financial software for banks and other financial institutions. The company has over 30 years of experience developing software for the finance industry, including core banking and online banking services. The general mission of UNITY-BARS is to provide fintech with reliable, adaptable, and secure software that simplifies operations, improves customer service, and fosters growth. The company focuses on creating comprehensive fintech solutions that address the specific challenges faced by their clients in the ever-changing financial landscape.

CallChecker is an AI-powered call analytics platform designed to give businesses complete control over their call-based operations. Whether you’re managing a call center, sales team, or customer support department, CallChecker helps you monitor 100% of your calls, surface valuable insights, and make data-driven decisions that drive growth. We don’t just help teams hear what’s being said — we help them understand what it means. What sets us apart:► Analyze every call (not just a sample) to ensure total visibility► Cut costs by 10x by automating manual quality control processes► Transform agent training and coaching with fast, AI-backed feedback► Ensure rule compliance through AI-enhanced script tracking► Enable faster onboarding and smarter development decisionsWith multilingual support and rapid setup, CallChecker is the go-to solution for teams looking to scale quality, not just volume.

COAX, a powerhouse software development company with 14 years of experience, crafts bespoke web and mobile applications for travel, retail, and eCommerce giants.

Unibrix provides web and app development services for clients all over the world. We are a team of tech people who know how to utilize the best tech inventions in the world of programming and create the right mix of technologies to create clients’ solutions. Based in Ukraine, our team is accustomed to working with clients from around the world. We’ve been recognized as a trusted partner of the TOP US media streaming platform, which engages with more than 100 mln users daily. Our services are all about code quality and trust.

PayForce is a Ukrainian group of companies that develops ready-to-implement fintech solutions, provides support, tokenization, and transaction services for remote customer service and attracting new customers.  PayForce products are currently used by about 5 million people. Among the company's products is its own online banking system, iBank, which includes more than 20 ready-made modules and has already been implemented in more than 10 banks, including KredoBank, Industrial Bank, Agroprosperis Bank, International Investment Bank, and others. The PayForce platform has open APIs in accordance with the PSD2 standard, which allows its integration not only in Ukraine but also in other countries where this format is standard.