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Founded in 2018 in Geneva, Switzerland, Software Service & Innovation (SSI) has grown from a small startup to a recognized provider of IT services. We specialize in bespoke software development, complex IT solutions, and cutting-edge digital transformation, delivering Swiss-quality precision and result-driven solutions to businesses of all sizes. Our expert team is committed to clarity, quality, and responsibility, ensuring that every project we undertake is executed with technical excellence and innovation. Whether you need custom software, cloud solutions, or DevOps expertise, SSI delivers tailored, high-performance solutions designed to maximize your business potential.  Partner with SSI for innovation, reliability, and success in your digital journey! 🚀

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

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.

 Seeton is a leading systems integrator that helps businesses transform their processes through automation and the integration of cutting-edge technologies.  The company specializes in cybersecurity, construction and modernizing IT infrastructure, cloud technologies, virtualization, and professional technical support 24/7 at all stages of implementation.  Seeton`s portfolio includes over 1,000 successfully implemented projects and long-term partnerships with more than 100 global solution vendors, such as Akamai, Cisco, Dell Technologies, IBM, Oracle, VMware, and others. This ensures clients have access to modern technologies that meet the highest quality standards. With a wide network of partners, Seeton innovates projects, adapting them to business needs in various industries. Cybersecurity is a strategic priority for Seeton. Partnership with over 40 leading cybersecurity solution vendors allows the company to implement advanced data protection technologies. The experts of the CyberSecurity group, who have more than 300 certifications in the industry of information security, guarantee a deep analysis of risks and customized solutions. Seeton not only responds to existing threats, but also actively anticipates future challenges, providing customers with confidence in their security.  Seeton - провідний системний інтегратор, який допомагає бізнесам трансформувати свої процеси через автоматизацію та інтеграцію новітніх технологій. Компанія спеціалізується на кібербезпеці, побудові та модернізації ІТ-інфраструктури, хмарних технологіях, віртуалізації та професійній технічній підтримці 24х7 на всіх етапах впровадження.  Портфоліо Seeton налічує понад 1000 успішно реалізованих проектів та довгострокові партнерства з більш ніж 100 світовими виробниками рішень, такими як Akamai, Cisco, Dell Technologies, IBM, Oracle, VMware та ін.  Це забезпечує клієнтам доступ до сучасних технологій, що відповідають найвищим стандартам якості. Завдяки широкій мережі партнерів Seeton впроваджує інновації у проектах, адаптуючи їх до потреб бізнесу в різних галузях. Кібербезпека є стратегічним пріоритетом Seeton. Співпраця з понад 40 провідними виробниками рішень з кібербезпеки дозволяє компанії впроваджувати передові технології захисту даних. Експерти команди CyberSecurity, які мають більше 300 сертифікатів у галузі інформаційної безпеки, гарантують глибокий аналіз ризиків та індивідуально підібрані рішення.  Seeton не лише реагує на існуючі загрози, але й активно прогнозує майбутні виклики, забезпечуючи клієнтам впевненість в їхній безпеці.

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.

Levi9 IT Services is a new generation IT service company with headquarters in Amsterdam and six delivery centers in Eastern Europe. Founded in 2001 and named after Comet Levy9. The explosion from its collision with Jupiter in 1994 changed the sky forever. Levi9 also aims to make a difference in the history of the IT industry by changing the approach to outsourcing. The company creates innovative solutions for more than 50 clients and specializes in developments for B2B and B2C businesses in the fields of finance, automotive, e-commerce, etc. The company has been operating in Ukraine since 2008 and has a team of almost 300 IT specialists involved in projects remotely or working in modern offices in Kyiv and Lviv. Levi9 specialists regularly support the defenders of Ukraine in frames of military tax project & with different donation projects, the company doubles the tax & levi niners decide where to direct the funds. This way, over 26 million UAH were accumulated in 2 years.

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.

Conscensia is a Danish software development company with headquarters in Aalborg (Denmark) and development centers in Lviv (Ukraine), Warsaw (Poland) and Porto (Portugal). With the right nearshore partner, you can scale your development and reduce time-to-market on cost-effective and flexible terms. Conscensia has more than 18 years of experience in helping companies create the best software solutions for their businesses. We focus on development within JAVA, . NET, JavaScript (both frontend and backend), Azure, Python, PHP, DBA, BI, Mobile Development (iOS/Android), Quality Assurance, and others.  Our development centers have a Scandinavian management style that focuses on personal development and work-life balance.  

StartupSoft is a trusted partner for augmenting your in-house team with remote, top-tier software engineers, including those specializing in AI/ML. Working with startups and Fortune 10 corporations, we ensure the perfect cultural & technical fit, and handle all the back-office management, so you can focus on what matters.

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.

Scelex is a software and service technology company. We deliver tailored software solutions through a dedicated end-to-end development process, utilizing the latest technologies to address the distinct needs of each client. We've brought together all the best practices and ideas, that we discovered while working in large IT-corporations, to create a unique company, that will satisfy clients' business needs and produce high-quality solutions.  Scelex's mission is to empower businesses through innovative technology solutions that enhance efficiency, drive growth, and create competitive advantages in the ever-evolving digital landscape. Our expertise includes:- Serverless Architecture- Frontend Development based on React- Backend Development based on Node. js- Mobile Development based on React Native for both iOS and Android devices- Amazon Web Services (AWS)- DevOps Engineering- UI/UX Design- Quality AssuranceWe are eager to collaborate with you and help transform your ideas into leading products. Contact us to discuss how our expertise can contribute to your project's success.

Trusted software development partner. Brainence is a software development company building first-class products and growing development teams. Over the past 7 years, we've teamed up with over 50 startups and established enterprises, helping them create impactful software solutions and hire top tech talent. Our services: Full-cycle custom software development Dedicated engineering teams for hire Web and mobile development SaaS development and cloud migration Customization development UI/UX design Quality assurance and testing DevOps Our technology stack: ReactNative Angular React . NET . NET Core Node. js ASP. NET