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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! 

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.

We are a dedicated team of IT professionals based in Ukraine, with over 3 years of experience in providing innovative technology solutions to businesses worldwide. Our journey began with a passion for harnessing the power of technology to drive progress and streamline operations for our clients. Today, we are proud to be a trusted partner to organizations across industries, delivering cutting-edge software solutions and IT services that make a difference. What We Do Best:Custom Software Development: We specialize in building bespoke software tailored to your unique needs, ensuring seamless integration with your business processes. Web & Mobile Development: Our team creates high-performance, user-friendly websites and mobile applications that provide exceptional experiences for your customers. IT Consulting & Strategy: Leveraging our deep industry knowledge, we guide in selecting the right technologies, developing efficient IT strategies, and optimizing existing systems. At FixIT, we are driven by a relentless commitment to excellence and a passion for helping our clients succeed in a rapidly evolving digital landscape. Our team is dedicated to staying ahead of the curve, continuously learning, and adapting to new technologies to ensure we provide solutions that drive lasting success.  

We build products that make money

We are Linecore. We create custom e-commerce projects that enable you to communicate your strategic vision, strengthen your brand, and win more business. Our clients are industry leaders and rising stars. They know the power of innovations, are experts, and want to work with experts. Through our 20-year history, we have helped over 500 clients and have more than 100 projects in ongoing support. We proudly use industry-leading processes and tools to deliver business value across multiple industries. Contact us today to discuss your project! 

Premium Software Development Teams We are Group 107, a place where innovations, technologies, IT talents, and leading world companies meet to transform creative ideas into successful businesses. We have been operating in Lviv since 2020 and provide end-to-end software development solutions to enterprises of all types and sizes worldwide. Our company has a collaborative and fast-paced environment for development, engagement, and continuous professional growth. When providing premium IT services, we stick to three main principles of professional ethics: a deep understanding of business goals, transparency, and an agile approach. With our highly skilled specialists, your business will scale up at your desired pace. We deliver cutting-edge solutions for: Enterprise Software Development; SaaS; Quality Assurance; Business Analytics; Data Science; Big Data; Internet of Things; Industry 4. 0; Business Intelligence; DevOps; Blockchain; Cyber Security; Web Design; Web Development; Marketing; Apps; Search Optimisation. Our Promise: Our dedication to providing top-notch software solutions is based on prioritizing people above everything else. We look at every challenge from the end-user and business perspectives, and we combine the strength of design with our in-depth technological expertise to offer solutions that improve the user experience and add value. We take pride in delivering services on time while maintaining the welfare and social benefits of your remote employees. If you need to hire a team or want to know more about future growth options, do not hesitate to reach out to us today! Key Advantages: Full Transparency; Fast and effective recruitment cycles with the best-in-class candidates; High employee loyalty and engagement; Professional onsite Israeli team management. Group 107 is listed on the Tel Aviv stock exchange (TASE: G107) under the "Technology-Software and Internet" Sector.

Mobile App Design and Development Company Perpetio is your one-stop destination for app & web design and development. Operating since 2014, we’ve successfully delivered 150+ projects that top the charts in the market and are used by millions of people worldwide. Being a full-stack development company with an HQ in Tallinn, Estonia, and an R&D office based in Lviv, Ukraine, we cover: Business Analysis Planning, UI/UX Design Backend/Client Architecture Development Quality Assurance Deployment Maintenance and Support. If you’re looking for a winning partnership, contact us today and let’s get started! 🥇 Why Choose Us? - Our apps top the charts in AppStore/Google Play - 9+ years of success and counting - 100% English-speaking team Whether you need to launch your MVP quickly or need expert consultancy for your business, Perpetio is a great partner to help you succeed. So why wait? Let's create something amazing together! 🤝

At ConceptArea, we are dedicated to providing innovative solutions and cutting-edge technologies to meet the evolving needs of our clients. With a focus on creativity, collaboration, and excellence, we strive to deliver tailored solutions that drive business growth and success. Our team of skilled professionals combines expertise in IT Consulting, IoT, Mobile App Development, and Web Development to deliver comprehensive solutions that exceed expectations. ConceptArea is your trusted partner for turning ideas into reality.

Scaling up engineering capacity. WeOne is an IT company, and a hiring platform for businesses of any size. Our goal is to connect IT professionals with companies in need. To provide this mission we’ve built our solution based on AI, and given a convenient way to connect businesses with desired talents. More than this, all talents on the platform are not only preselected by AI, they put through the vetting process, that contains fact checking, English proficiency tests, and qualification interviews with a coding challenge. On top of that, our company has enough capacity to advise and help in the areas of our expertise.

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.

SmartTek Solutions is a software development company that delivers software products, managed IT outsourcing services, and solution engineering to world-renowned customers.   The profound expertise of our team was proven by numerous projects in different fields: starting from cyber security, and renewable energy solutions, ending with an apartment rental portal and app for posting petitions to a government.  Some of our clients: Brainchild, Jaguar, Nike, ADVA Soft, Brand IQ Creative Group, Karhu, Yohann, Odoo, and more.  Services we deliver:✅ Web Development✅ AR/VR Development✅ ERP Development✅ Mobile Development✅ Cloud Development✅ IoT Development✅ Dedicated Team (R&D)✅ Technology Consulting.  Our technology focus: Python, . NET, Node JS, PHP, Swift, React, Angular, Go (golang), Flutter, Computer Vision & Machine Learning.  🏆 Industry and domain expertise: FinTech, Healthcare, Real Estate, AgriTech, PropTech, Trading, Logistic, EdTech, Automotive.  🥇Our customers are entrepreneurs, startups, and Fortune 500 companies from the US, Australia, and Western Europe. We make quality products, not just quality code.   Some facts about us:🔸 15 years of experience in software development🔸 The in-house team of 150+ skilled professionals🔸 4,9 - rating on the most reputable review platform Clutch🔸 300+ successfully finished projects with 99% of job success🔸 Headquarters in the U. S. , R&D offices in Eastern Europe🔸 An official Odoo ERP Silver Partner.  Need a reliable tech partner to assist in your project idea implementation? Let's build something great together! 

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 Gold 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