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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! 

Full-cycle iOS and Android Application development agency from Zaporizhzhya, Ukraine. Website-portfolio: https://cookiedev. com/ Full-cycle means that we provide services at every stage of iOS and Android application development process.  We grow our business by helping our customers to grow theirs.  We build iOS apps (iPhone, iPad) and Android apps (phone and tablet) of any complexity or style (material style, flat style):- delivery and ordering systems related applications- logistics mobile applications- marketplace apps- video and chat applications, WebRTC / VoIP, socket connection- booking mobile apps- online TV applications- educational applications- applications for online stores- cleaning services- in-app purchases and in-app subscriptions related apps- iOS apps with iOS specific features- Android material apps with Android specific features- AndroidTV applications- you tell it - we do it iOS skills include but not limited to:- Swift 3 / Objective-C- iOS SDK, xCodeb- Protocols: JSON-RPC, XML, RPC, SOAP, REST. - Integration with existing social networks: Facebook, Twitter, Vkontakte, G+- 2D games: Cocos2D, Cocos2Dx- E-books (static or interactive), Newsstand- Databases: SQLite, CoreData- BLE 4. 0- Mobile advertisement: iAd, AdMob, AppLeads, Flurry, AdWhirl- Other servises and SDKs: Braintree, Liqpay, Yandex. Money, Branch, Maps (OSM, Google, Apple), LinPhone, FrozenMountain, ooVoo, Flurry Analytic, Google Analytics, Crashlytics, Test Flight, other Android:- Java / Kotlin- Encryption: OpenGPG. - Protocols: JSON-RPC, XML-RPC, SOAP, TCP/IP. - simple applications OpenGL ES- Integration with social networks (Facebook, Twitter, Vkontakte, MailRu, Odnoklassniki), Google services (e. g. Youtube, Google Cloud Printing), Payment gateways (Braintree, PayPal, Liqpay, Yandex. Money)- Interaction with external devices (BLE 4. 0/SPP/USB). - Android SQLite- Google Billing, in-apps- VoIP and WebRTC integrations React Native skills:- TypeScript- Node. JS (MERN stack)- JavaScript- ES6+- MongoDB- HTML5, React, CSS- Redux- Material UI Web technologies stack:- React. js,- Angular. JS, Angular 2+- Laravel (PHP framework),- Symfony (PHP framework),- Node. JS,- VueJs- Express. js,- Bootstrap,- Jquery- Integration with social networks (Facebook, Twitter, Vkontakte, MailRu, Odnoklassniki), Google services (e. g. Youtube, Google Cloud Printing), Payment gateways (Braintree, PayPal, Liqpay, Yandex. Money)- Protocols: JSON-RPC, XML-RPC, SOAP, TCP/IP and much much more.  You come to us with an abstract idea and after time we’ll submit a fully functional app to AppStore or Google Play Market. We create Tech Specs documentation, mockups, app designs, development itself, application updates as well as upgrades, along with many other services more or less connected with iOS and Android development.  

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Your trusted partner for guaranteed software delivery. ELEKS is a trusted partner for guaranteed software engineering excellence, quality, and transparency every step of the way. Build from scratch or use our delivery accelerators to get your software to market faster, while our team of experts keeps you informed and involved throughout the entire development process. No missed deadlines - just reliable software that frees you to grow your business. ELEKS is the partner of choice for many of the world’s leading enterprises and technology companies. With about 2,000 experts across Europe, the US and Canada, we stand up to the most complex technology and business challenges, employing a mix of pioneering and traditional methods to design and implement full-cycle products that fulfil your software vision. Featured services and areas of expertise:Full-Cycle Custom Software DevelopmentDigital Product Design & Customer ExperienceEnterprise Applications Consulting and Implementation (CRM & ERP)Data Strategy, Data Science and AISecurity Advisory ServicesCloud & InfrasructureSustainability Consulting & ReportingCompany facts:​120+ active client accounts21 offices globally63 Net Promoter Score1000+ end-to-end projects delivered​​In business since 1991.

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.

TRANSFORM YOUR PRODUCT’S TECH FOUNDATION. PERFORMANCE. SCALABILITY. USABILITY.

Intellectsoft is a digital transformation consultancy that provides cutting-edge engineering solutions for global organizations with the mission to help enterprises accelerate the adoption of new technologies, untangle complex issues that always emerge during digital evolution, and orchestrate ongoing innovation. Intellectsoft has been named as Top Custom Software Development Company in 2024 by FirmsTalk, Top App Development Company in 2024 by Business of Apps and received over 16 awards in 2024 alone. The Company’s services portfolio offers strategic IT consulting, CX design, development, and full lifecycle management of custom software products and applications, and system integration. Whether it is a consumer-oriented app or a transformative enterprise-class solution, the company leads the process from ideation and concept to delivery and provides ongoing support through its IS360 framework.

Stepico is an European game development company with 10+ years of expertise in the industry. We are known for our mobile, PC, and console gaming solutions using Unreal and Unity game engines. Our development services include both full-cycle game development, where we fully manage all aspects of your project, and coverage of individual phases of development, e. g. , 2D/3D art production or live game operations.

Vector Software is an experienced IT outsourcing company offering premium custom offshore development services. Established in 2014 the company has quickly grown into a prosperous software development company. We provide our customers with the best solutions in the field of customized software development. Having experienced and skilled outsourcing software developers with extensive technology expertise allows us to deliver software solutions of different complexities on time.

Eventyr is a team of technical and business professionals who deliver advanced software development services for different business areas. We aim to build long-term, mutually beneficial relationships with our clients and solve their issues with cutting-edge software solutions. Your business is growing — we are growing together with you. Our company is a member of Sigma Software Group, which unites more than 9000 employees in 11 countries.  

Virtido - Empowering your ideas. We are Virtido, an innovative, Swiss-based business process outsourcing and IT company. We realize your ideas and projects - from strategic concept to technical implementation. We deliver turnkey custom made software in close collaboration (agile development) with our clients – we provide the full project team from architecture over UI/UK, coding, DevOps, QA to project management, Our own nearshoring-platform allows you a cost-effective execution.

CleverStaff is the software for recruitment with AI assistant, auto-match and gamefication. We have cloud and enterprise (on premise) versions. We build an HR tech ecosystem making integrations with other HR tech platforms and solutions. If you have HR tech product, let's talk!