XB Software

XB Software is a Poland-based custom software development company founded 17+ years ago. The company has delivered over 400 projects across web, mobile, and enterprise domains. They operate with a 100% in-house team model — developers, designers, project managers, and QA engineers all work from the same office, which they say eliminates third-party delays and communication gaps. The team typically starts at 7+ specialists per project but scales to fit scope. They work in agile sprints with QA embedded at every stage, and claim 2+ hours of daily overlap with Eastern European timezones for clients elsewhere.

Services and capabilities

XB Software's core offering is full-cycle custom development: discovery through maintenance. On the web side, they build Single-Page Applications, Progressive Web Apps, and SaaS platforms using React, TypeScript, Node.js, and .NET. They also specialize in application modernization—migrating legacy desktop apps and monolithic systems to cloud-native architectures. The company owns Webix and DHTMLX, two JavaScript UI component libraries, and actively promotes using these for faster development. They offer staff augmentation (developers, QA, UX/UI designers, project managers, business analysts) and dedicated team hire.

Beyond general development, XB Software has built vertical solutions: construction planning software with Gantt visualization, healthcare workforce management (HIPAA-compliant), drilling and well management systems for oil & gas, solar project management tools, visa/immigration CRMs, ambulatory care scheduling platforms, and salon booking systems. They also offer two white-label products—Stockelix (inventory and asset tracking) and Examarius (online testing platform)—designed for rapid deployment and customization.

They emphasize a "Spec-Driven Development" approach paired with AI-assisted development. They use AI tools (Lovable, Cursor, Codex, Claude, AI design assistants) to generate prototypes and boilerplate code, then refactor the output for production stability and maintainability. MVP and MVE development is a specific offering aimed at startups and SMBs testing market fit without large upfront spend.

Notable work

XB Software lists six main case studies. A construction planning app was modernized to allow switching between legacy and new frontends during migration, resulting in "better user adoption" and "reduced onboarding time." A visa and immigration CRM for a travel agency unified high-volume visa applications, documents, and client interactions with automated workflows; the result was "faster document processing." An ambulatory care workforce management system reduced administrative load and "improved staff utilization." A Gantt-based salon scheduling widget improved "schedule visibility" and reduced booking conflicts. A cloud-based SaaS platform for well drilling unified operations and real-time data for construction project lifecycle, delivering "improved planning efficiency" and reduced "admin overhead." A PM Gantt Chart tool for solar projects handled complex farm development with version history and real-time scheduling, yielding "accelerated project scaling" and "improved planning accuracy."

Client testimonials rate XB Software highly (mostly 5.0 / 5.0, a few 4.8). Named clients or references include Emory University Hospital, a leading New York cancer center, Aeroman, OptiMantra, Enquiry Medical Ltd, App Orchid Inc, Spitfire Management, ATEXIOM SAS, BackGate, and GDP Drilling. Reviewers praise speed, code quality, professionalism, and responsiveness to change requests. One client (Emory) noted the team included "project managers, coders, web designers, people to help with software testing." Another (Spitfire Management) commended TypeScript structure and inheritance patterns.

How they work

XB Software offers fixed-price, time-and-materials (T&M), and a hybrid "BFS (Budget with Float Scope)" contract type. Projects start from $10,000; timelines range from weeks for simple MVPs to 6+ months for complex platforms. They typically start within 1–2 weeks. The company requires no pre-payment upfront and signs NDAs under the client's legal jurisdiction. They follow ISO 9001:2015 standards and claim 100% client IP ownership. Their five-stage process spans discovery (requirements and specification), development (wireframes through front/back-end with embedded QA), testing (full lifecycle from requirements to post-deployment), deployment (careful system setup on client infrastructure), and maintenance (quality guarantee period and support). Vitaly Hornik is listed as COO, Ph.D. in IT and PMP-certified.

Team and credentials

The team is 100% in-house and varies in size per project, starting at 7+ specialists. Roles include developers, UI/UX designers, project managers, business analysts, and QA engineers. The company holds ISO 9001:2015 and ISO 27001 certifications. Vitaly Hornik, the COO, holds a Ph.D. in IT (Computer Science) and is PMP-certified. Client reviews consistently note professionalism and clear communication. They operate out of Eastern Europe (Poland) with guaranteed 2+ hours of daily timezone overlap and can extend to full-day sync if needed.