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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

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.

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.

Since 2007, Avivi has been developing business software, namely custom CRM systems and add-ons for off-the-shelf products, eCommerce project development, bot implementation, and application of blockchain technologies to solve business problems. The most significant were projects of an international logistics service for the delivery of goods from the USA, a unique CRM system for organizing the full cycle of production and sale of products of a sewing company, and the development of a Telegram bot for all types of transactions with leading cryptocurrencies. In working with clients, Avivi uses a purely personal approach to each individual order to create a product that best suits each individual business.

Infopulse, part of the leading Nordic digital services company Tietoevry, is an international vendor of services in the areas of Software R&D, Application Management, Cloud & Infrastructure, and Cybersecurity to SMEs and Fortune 100 companies across the globe.  Founded in 1991, the company has a team of over 2,000+ professionals and is represented in 7 countries across Europe and North and Latin America. Infopulse is a Global Outsourcing 100® company recognized by IAOP® and is trusted by many established brands, such as BICS, BOSCH, Corteva Agriscience, Credit Agricole, Delta Wilmar, ING Bank, IPCO, Metinvest, Microsoft, Offshore Norge, OLX, OTP Bank, Raiffeisen Bank Aval, UkrSibbank BNP Paribas Group, Vodafone, Zeppelin Group, and others.

8allocate is an AI solutions development company that helps businesses accelerate growth, streamline operations, and enhance decision-making. Founded in 2015 and headquartered in Tallinn, Estonia, with R&D centers across Central and Eastern Europe (Poland, Ukraine, Romania) and Latin America, we empower organizations in FinTech, EdTech, Construction Technology, and other high-growth industries. We build AI-driven solutions that transform operations, unlock new efficiencies, and enable real-time decision-making. From automation and predictive analytics to Agentic AI and scalable cloud-based platforms, these solutions provide a strategic advantage by seamlessly integrating AI into business processes, ensuring adaptability, resilience, and sustained growth.

At Voicerhub, we specialize in transforming customer feedback into actionable insights. With years of experience in CX analytics, AI-powered speech analysis, and multi-channel feedback management, we help businesses enhance customer satisfaction and improve their online reputation.  Our solutions, Voicer and TONY, empower companies to gather and analyze reviews from multiple sources, optimize customer interactions, and boost ratings on platforms like Google Maps. We’ve successfully implemented our technologies in global enterprises, helping them strengthen their brand and customer trust.  We understand that every business is unique, which is why we tailor our approach to your specific needs. Whether you’re a retail chain, service provider, or enterprise-level company, Voicerhub provides the tools and expertise to elevate your customer experience. Let’s build stronger connections with your customers together!     У Voicerhub ми перетворюємо відгуки клієнтів на цінні інсайти. Завдяки досвіду в CX-аналітиці, AI-обробці мовлення та багатоканальному збору зворотного зв’язку, ми допомагаємо бізнесу підвищити рівень задоволеності клієнтів і зміцнити репутацію в інтернеті.  Наші рішення, Voicer та TONY, дозволяють компаніям ефективно збирати та аналізувати відгуки з різних джерел, покращувати взаємодію з клієнтами та підвищувати рейтинги на таких платформах, як Google Maps. Ми успішно впровадили свої технології у міжнародні компанії, допомагаючи їм зміцнювати бренд та довіру клієнтів.  Ми розуміємо унікальність кожного бізнесу, тому адаптуємо підхід відповідно до ваших потреб. Незалежно від того, чи ви роздрібна мережа, постачальник послуг або велика корпорація, Voicerhub надасть вам інструменти та експертизу для покращення взаємодії з клієнтами.  Будуймо міцніші відносини з вашими клієнтами разом!

AiSDR is an AI SaaS platform that qualifies, communicates, and converts prospects for your sales team on autopilot.  Here is a short demo-video: https://www. loom. com/share/c0ab74d4ec554f4bab4579e26b616bea?sid=034a9735-b11b-483c-92ef-b0b385aa8496AiSDR is capable of fully automating SDR tasks by managing both inbound and outbound communication tracks. This allows businesses of all sizes, from startups with founder-led sales to enterprises with mature sales motions to grow pipeline in a risk-free cost-optimized environment.  Our platform: Creates a  personalized omnichannel campaign for each lead (inbound or outbound) via email, LinkedIn, and text messages, and guarantees personalized follow-up for each engaged lead in <10 minutesAutomatically qualifies leads based on a prospect’s LinkedIn and company website dataAutomatically creates personalized nurturing campaigns for lower-intent leadsHelps find qualified prospects using granular ICP filtering, lookalike companies search, and buyer intent signals (hiring intent, funding rounds, technology used, web and search activity)Provides access to a database of 700M+ contacts with unlimited leads included into the subscriptionAutomatically enriches and filters lead list data based on a lead’s LinkedIn and any website dataCan instantly scale based on user’s growth goalsIncludes unlimited mailbox setup, warmup, and health checks for all clients Provides 24/7 support, a dedicated Account Manager, and white-glove onboarding for all users starting from the base tierCompanies currently spend around $80,000 per year for a full-time SDR. AiSDR offers to do the same job for $9,000 per year. Our pricing is volume based, starting from $750/month for 1,000 emails/month.

ARTJOKER is a full-scope outsourced software consulting company that provides product discovery, custom software solutions, and cost-saving DevOps services for startups, medium-sized businesses, and large corporations in Fintech, Ecommerce, Real Estate, and Logistics. We focus on integrating AI into our solutions to enhance innovation and efficiency. For 18 years, ARTJOKER, as an EU-based company, has been a reliable partner for businesses in Western Europe, Israel, and the USA. Our team offers expert engineering support and valuable insights to help our clients solve their most challenging business problems.

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.

Create winning solutionsBinariks is a tech partner that helps businesses undergo digital transformation at every stage of their journey and provides engineering services and consultancy by vetted experts. We provide software engineering and consulting services, build teams and products, and design complex architectures for international software companies and global enterprises. Binariks adheres to international security standards and holds AWS Select Consulting Partner, Google Cloud Partner, Gold Microsoft Partner, ISO 9001:2015, ISO 27001:2022 security and quality certificates. Industries:Healthcare✔️Healthcare Interoperability Solutions✔️Healthcare Cloud Solutions✔️Remote Patient Monitoring Software✔️Telemedicine Software DevelopmentFintech💳 Banking Software Development Services💳 Payment Software SolutionsEducation / Insurance / Delivery / AutomotiveExpertise:🔹 Cloud development & adoption🔹 Cloud migration & consulting🔹 ML&AI🔹 Big Data🔹 IoTServices:🔹 Full-Cycle Custom Software and App Development💠 Custom Web Development💠 Mobile App Development🔹 AWS Consultancy🔹 Google Cloud Platform Consulting🔹 Dedicated Development Teams🔹 Architecture Consulting🔹 UI/UX Design Services🔹 Quality Assurance Services 

Since 2013, Relevant Software has been delivering tailored software development solutions across diverse sectors such as fintech, healthcare, and construction, partnering with mid-sized businesses and large enterprises, including those in the Fortune 500. We also help our clients gain a competitive advantage, reach new markets, and enhance operational efficiency through innovative technologies such as IoT, machine learning, and AI.  With self-sufficient teams and timely delivery, we provide end-to-end software development solutions that solve complex challenges, ensuring your business stays efficient, competitive, and always relevant.  10+ years of software development excellence. 200+ projects across diverse industries. 150+ dedicated software engineers. 92% of the team are senior and middle-level engineers. 97% client retention for new projects and support. 80% employee retention with a 5-year average tenure.