Who Is Behind Callious?
Tech support outsourcing from Serbia for the global market
Experience That Makes a Difference
Callious is a Serbian IT company that has been providing outsourced tech support for various UK, EU and USA companies in CDN services, web hosting, custom software development and hardware solutions.
Our team of experts works with all modern technologies — from virtualization and containerization to cloud migrations and network infrastructure. These are the technologies our clients use, and we support, maintain, and now apply them to our own infrastructure.
We proudly launch PrimeHost.rs — the most modern hosting platform in the region, where all our experience and knowledge serve local users.
Principles We Live By
Reliability
99.9% uptime with proactive monitoring of all systems — because every minute counts.
Innovation
We always use the latest technologies and industry best practices.
Transparency
Open communication and clear processes — no hidden costs or surprises.
Partnership
Every client is a partner. Your success is our success.