The leading cloud provider in the region

  • 8+

    data centers

  • 15+

    years of experience

  • 100+

    cloud and system engineers

  • 300+


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We create business value from cloud technologies

With our own infrastructure in the region, a team of certified engineers and partnerships with world leaders - Microsoft Azure, Amazon Web Services and Google Cloud, we offer clients personalized solutions that enhance the agility, flexibility and efficiency of their specific IT systems and applications.


In the process of digital transformation, our mission is to provide our clients with cloud infrastructure and operational support for smooth operation of the IT environment. And in this way to support not only technological modernization but also the development of their core business.


Cloud transformation, we know that well, can be a big challenge. That is why our vision is to help regional companies simplify it with the highest quality of services and be a specialized partner they can rely on - whatever stage of cloud journey they are in.

We have been trusted by:

We provide choice with a multi-cloud ecosystem

Our regional infrastructure and multi-cloud expertise provide companies with the flexibility to choose cloud platforms and solutions, as well as hosting locations within Southeast Europe.

  • Enterprise-class data centers in 5 countries
  • Solutions on AWS, Azure, GCP and Mainstream Cloud platforms
  • Support from local cloud experts
  • Over 300 clients relying on our expertise
See projects

Our projects

Find out more

Managed Hosting as an answer to IT challenges

The improved infrastructure has set for the digital transformation of Ringier Axel Springer through more efficient usage of IT resouces.

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Optimization of a Disaster Recovery solution

As one of the leading banks in Serbia, AIK Banka focuses on building lasting relationships based on safety and trust.

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Improvement and unification of the hosting system

The website has existed for more than 20 years, and it is one of the most visited and influential websites in Serbia and the region.

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We guide you through the cloud transformation

Public, hybrid and multi-cloud

Mainstream engineers help clients choose the best cloud platform, create the optimal environment for their IT systems, applications and work tasks, and provide 24x7 support for managing public, multi-cloud and hybrid environments.

Personalized cloud solutions

From assessing the readiness for migration through the strategy of transition to the cloud, implementing custom solutions, maintaining and improving infrastructure performance, as well as cost efficiency, we put cloud technologies in the service of your business.

24x7 expertise available

Our experts are at your disposal 24x7 for activities of monitoring the cloud infrastructure and security, monitoring and optimizing the costs in real time and proactively solving the problems.

Latest technologies

We help clients accelerate their IT transformation through the application of microservice architecture, proven DevOps practices and tools, and advanced automation in a way that best meets their challenges and goals.

 The largest team of cloud experts in the Balkans

We have been building cloud expertise since 2005.Since then, until today, our team has grown to over 100 cloud and system engineers whose experience gained through a variety of projects and their technological expertise, which they are constantly upgrading, enable us to create personalized solutions.

Want to become part of our team?

Be part of the team that creates the future.

Be part of the team that creates the future.

Careers in the Mainstream Vacancies

Technology partners


As an AWS Services Path (Advanced) partner, our team holds 30 AWS certifications and has successfully executed over 50 projects for local and international clients. Since 2015, we have been consistently nurturing our partnership with the provider of the world's largest public cloud platform.


All Microsoft public cloud products and related services have been part of the Mainstream portfolio for 15 years. Our certified Azure expertise and collaboration with clients across multiple continents have earned us the status of Solutions partner in the fields of Infrastructure, Modern Work, Data & AI, and Digital & App Innovation.


Mainstream has been a Google Cloud partner for over 5 years. Our experts are among the few cloud specialists in Serbia with official Google Cloud partnerships and engineering certifications.


Mainstream engineers have extensive experience in Oracle Cloud, holding more than 20 certificates for a wide range of services such as cloud infrastructure, data management, and database migration and integration. Our track record of successful projects makes us a reliable partner for support in all areas related to Oracle workloads.


As a NetApp Gold partner, Mainstream is accredited to provide diverse cloud transformation services based on NetApp solutions. We offer full support for NetApp products, with competencies including Spot By NetApp, Amazon FSX for NetApp ONTAP, Azure NetApp Files, NetApp Hybrid Cloud with VMware solutions, and NetApp technologies for IT security and ransomware threats.


Enhancing cloud services with advanced data protection and disaster recovery solutions, Veeam provides robust, reliable, and secure backup and recovery options. By integrating Veeam's cutting-edge technology, Mainstream ensures higher data availability and seamless business continuity for its clients.

Regional offices


Nušićeva 15, 11000
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Antigonis 58,
104 42
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Brnčičeva Street 049A, 1231
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Tsarigradsko Shose Blvd. 115i, 1784
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Josipa Marohnića 1, 10000
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