The leading
cloud provider
in South East Europe

Mainstream is your go-to provider of cloud transformation, infrastructure and managed services in SEE. Our solutions harness the power of multiple cloud platforms and are backed by our European network of eight data centers, providing enterprise-class performance with the highest level of reliability.


We are 100% cloud-focused. Partnering with the top cloud providers – MS Azure, AWS and Google Cloud – we deliver uniquely tailored solutions that im-prove agility, flexibility and profitability for every client and on every cloud platform.



Providing choice with a multi cloud ecosystem

We leverage our regional presence, multi cloud expertise and our state-of-the-art data centres to provide bespoke cloud solutions for every customer. We’ve done this for more than 200 clients across multiple industries.


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We guide you on your cloud journey

Public, private or hybrid cloud? We work with you to find the right solution.

Multi cloud expertise

We help our clients navigate the multi-cloud landscape and choose the right cloud platform for their needs. Mainstream engineers have experience in deploying tailored solutions across all major public cloud platforms, giving you access to the expertise you need to accelerate your digitisation initiatives.

Cloud solutions made for you

From accessing your cloud readiness to developing a custom migration plan, we make the cloud work for you. Our promise is to deliver flexible, secure and innovative solutions to meet your unique business needs, no matter which cloud you choose.

European data centers

Our solutions are supported by highly secure data centers designed to meet enterprise needs for redundancy, availability and application performance. With a European network of 8 data centers, we give you flexibility to choose between multiple locations both within and outside the EU.

Dedicated team of experts

Once you complete your move to the cloud, we ensure your IT runs smoothy and is secure and optimised for maximum performance. Depending on your needs, our teams comprising of more than 60 cloud professionals can be available at fixed time intervals or 24/7.

Mainstream in numbers

Discover what makes us your cloud partner of choice.

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Cloud and system engineers
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Satisfied customers
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Years of cloud experience
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Tier 3 data centers in the region
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Cloud projects

Partnerships with the top cloud providers

Our services

Scalable, flexible, secure: transform your business with our enterprise-class solutions.

Enterprise cloud

Migrate your local infrastructure to the cloud using our robust cloud platform designed to simplify IT moderni-sation for enterprises whilst offering the best of both worlds: performance and security.

Managed hosting

Enhance the performance and security of your online store, website or applications with Mainstream’s high availability hosting platform and dedicated 24/7 support. Our platform guarantees a 99.9% uptime and can meet the needs of large media organizations and e-commerce stores.

Public cloud

Get the most out of the leading public cloud platforms with the support of our team.Our AWS, Microsoft Azure and Google Cloud experts specialise in cloud migration, management and DevOps services that can be tailored to your specific needs.

Disaster recovery

Digital security is at the heart of the modern business. Take advantage of our highly resilient, cost-effective and customised Disaster Recovery service to protect your organisation’s most critical systems and enterprise data.

Cloud strategy

We will help you design a cloud strategy to modernise your infrastructure, improve business agility and reduce costs. Our cloud experts are here to help you build a strong foundation for your digital future, backed by years of experience in transforming legacy IT.

Cloud migration

Our skilled consultants will analyse your current environment, help you choose the right cloud platform, de-velop a migration plan and ensure a smooth, speedy and secure transition to the cloud.

Cloud management

We will proactively manage your cloud infrastructure to remove inefficiencies, maintain the availability and security of your business critical systems and applications and ensure optimal utilization of your cloud re-sources.

IT Operations

Using a tested approach, we help you enhance and optimise your IT systems with operational support that lets you focus on growing your business.

Some of our clients

Mainstream has been a long-term partner for our company. We entrust them to handle the hosting and maintenance of our websites which include the most visited website in Serbia ( and web portals such as,, and , as well as some of the biggest advertising websites in the region (,, and our online store

Jovan Protić

Group Director- Digital Publishing, Ringier Axel Springer

Business optimization involves more than optimizing resources. It requires awareness: you not only need to identify your weaknesses but also ways to overcome them. With the latter, you might have to face some challenges. But if you find the right partner who is a true expert in their field – progress comes naturally. This is why we entrusted a big part of our business to Mainstream, moving some of our operations into the Mainstream cloud.

Dragan Ranisavljević

Chief FInancial Officer, Gomex

Mainstream provides excellent managed hosting services for businesses that need high reliability and performance. The team acts promptly to resolve all issues. They are true professionals and a pleasure to work with.

Bojan Leković

CEO, KupujemProdajem

The biggest advantage of working with Mainstream is their experience and their comprehensive approach to resolving both technical and business challenges. The team is always willing to go the extra mile to help their customers. Thanks to their strategic guidance, we now have a much better and more resilient solution. Moreover, we have a trusted partner for our business growth.

Tilen Kosmač


With Mainstream’s help, we replaced our rented servers with highly available cloud infrastructure in the most efficient way for our company. Mainstream gave us the expertise and the resources which are unique on the local market, along with the flexibility we need as a media organization. We are extremely proud of the fact that B92 and 02 – both local products – are available through modern and secure infrastructure, which is based on local knowledge.

Ivan Jelić

Product and Development Director, B92

We’d describe our relationship with Mainstream as insourcing rather than outsourcing. The service they provide is essential for our business, and the cooperation with their team is so close that we think of them as colleagues. Strategy, goals and results are at the heart of everything they do; their support goes above and beyond what was defined in the contract. We trust them wholeheartedly.

Branimir Kulašević

Executive Director, Halo Oglasi

Mainstream has proven to be a reliable partner in providing hosting services for Limundo. We are very satisfied with the speed and quality of their server infrastructure, which supports our demands and is managed impeccably. Getting high quality support in areas such as business forecasts, technology implementation, system improvement and maintenance is extremely important for us. Mainstream provides us with timely support: the team is always happy to help and share their knowledge. We have no hesitation in recommending them.

Miodrag Stefanović

CEO, Limundo

A partnership approach and quick reactions to problems are the key elements of effective cooperation and the reason we entrusted Mainstream with our B92 portal and other online projects. Their level of expertise and advisory services for planning and implementing new features guarantee the best results.

Andrija Kokanović

Senior webmaster,

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Meet our team

Ljubiša Radivojević


The co-founder and Chief Executive Officer of Mainstream, Ljubiša is a serial entrepreneur with a passion for information technology. Under his direction, Mainstream has grown to become the leading provider of cloud solutions, infrastructure and management services in South East Europe.

Ljubiša combines his deep technical knowledge with the unique perspective he has gained through more than 15 years of experience to explore opportunities on how to make a smooth and secure transition to the cloud.

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Nikola Markovic


Nikola has more than 20 years’ experience in managed services, cloud technology, Infrastructure as a Service, support and consulting. He extensive experience spans across a multitude of sectors. He has worked with both small businesses and large corporate clients on a variety of domestic and international projects.

In addition, Nikola holds multiple certifications in the filed of system administration which include ITILv3, MCSA, MCSE, MCTS and CompTIA Security+.

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Bojan Manojlovic

IT project manager

With more than 15 years’ experience, Bojan is an expert in IT infrastructure and cloud technology. He occupies the role of Leader Engineer for advanced cloud and hosting services tailored for the finance sector.
In his role, he is responsible for the following areas: design of complex cloud architectures, implementation project management, coordination of technical team members and continuous improvement of Mainstream’s solutions and services in line with the needs of our banking and insurance clients.

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David Bevc

Cloud Transformation Strategist

David is an experienced NetApp solutions Architect with over 20 years of experience in the IT industry. David is a cloud enthusiast who believes that multi-cloud environments are the future. Currently, he holds various certifications ranging from servers, storage, and mailing systems to databases, including Microsoft, VMware, NetApp, AWS and Citrix certifications. He was also invited to as the only member of NetApp A-Team in South East Europe and further. The NetApp A-Team members are part of a strong community of like-minded technologists who share an interest in becoming more knowledgeable about NetApp and the IT industry.

David currently serves as Cloud Transformation Strategist at Mainstream, a SEE leader in multi-cloud services. As more companies than ever are shifting to private as well as public cloud solutions, he advises customers on how to maximise the efficiency of their IT ecosystems, wherever they reside.

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Aleksandar Nedeljković


Aleksandar serves as Chef Business Officer at Mainstream and is responsible for the formation of business strategy to ensure the company’s long term growth, as well as for the development of consulting services.
Prior to Mainstream, he has worked in various capacities in foreign investments and business consulting, with organisations such as SIEPA and Deloitte. He specialises in market entry strategy, operating model design, TCO analysis and strategic cost reduction, and is well versed in operating synergies in M&A.

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Goran Milošević

Service Delivery Director

Goran brings more than 27 years of experience in the IT sector on both the technical and commercial side. Over the past decade, he has worked as IT system engineer and Pre-sales consultant, and then progressed to a manager leading teams of more than 100 people.
Goran has an extensive background in IT services, especially in the areas of IT operations and cloud technology. At Mainstream, he is responsible for coordinating teams, building processes, environment and tools to ensure the highest quality of services, which include complex cloud and hosting projects.
Prior to joining Mainstream, he has held various positions in global companies including DXC Technology and Hewlett Packard Enterprise.

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Marko Uskoković

System Architect

Marko brings more than 15 years’s experience in administrating Linux Systems, virtualisation platforms and databases. He is an analytical thinker and problem solver who constantly seeks new ways to seize the opportunities from digital technologies.
After gaining valuable experience at the Computer Centre at the Faculty of Electrical Engineering in Belgrade, he joined Mainstream as System Architect. He participated in the design of a Managed Web Hosting system and the implementation of more than 1.000 Linux servers, including Mainstream’s cloud system which hosts some of the most popular website in Serbia.

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Rastko Vasiljevic

Public Cloud Team Lead

Rastko is an experienced cloud solution architect and Linux System engineer with over 10 years of experience in the IT industry. As the leader of Mainstream’s Public Cloud team, he has expertly managed cloud projects for clients from multiple continents. His extensive international experience and comprehensive understanding of cloud computing encompasses everything from cost optimization to security and DevOps.
Rastko gladly shares his expertise by participating at conferences in Serbia and the region, as well as by writing educational content in the field of public cloud.

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Pavle Obradovic

Senior System Engineer

As Senior System Engineer at Mainstream, Pavle is focused on designing highly available, high performance and low latency networks. With more than 7 years’ experience, he has led and participated in all the phases of the PPDOO (Prepare, Plan, Design, Implement, Operate, Optimize) network life cycle.
As well as designing high performance network infrastructure, he is responsible for capacity management, risk assessment and mitigation plans.

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Bojan Vitnik

Senior System Engineer

Bojan developed a passion for technology at an early age, working with *nix based systems and Open Source technology. He is a self-thought programmer who honed his analytical and complex problem-solving skills with formal education.
With 10 years of experience, Bojan is an expert in cloud hosting technologies, virtualisation platforms, high availability systems and automation. Drawing on his extensive experience in these fields, he developed several new products and services for Mainstream. He also played a key role in the automation of the company’s IT processes.

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Zorana Jurić

Vice President of Sales

As VP of Sales in Mainstream, she is responsible for sales strategy, ensuring long-term growth. With extensive experience in sales, marketing and management, Zoran’s focus is the realization and monitoring of all business units, as well as supporting marketing department. Prior to joining Mainstream, Zorana worked as a Senior Marketing Manager for Eastern Europe at Kaspersky Lab, where she was responsible for creating a long-term strategy and implementing comprehensive marketing activities. In the period from 2008 to 2018, Zorana worked in several positions at IDC, starting as a local analyst, team leader of analysts and consultants in the Adriatic region to running the entire office business in the Adriatic region. As an analyst, she was responsible for research on IT services, software, data storage devices and smartphone markets in Serbia, and actively participated in numerous consulting and research projects for IT solution providers and end-user IT directors.

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Milica Vesić Petrović


As a marketing manager in Mainstream, she is responsible for marketing strategy, defining access to the domestic and global market, building the company’s brand, communication and marketing campaigns, launching new services and ensuring customer satisfaction.
Over the past 10 years, she has gained experience in creating and implementing marketing strategies and projects in the FMCG, gaming and IT industries with a focus on brand management, trade marketing activities, corporate communications, digital marketing and employer positioning.

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Contact Mainstream

Head office


Nušićeva 15, 11000


Antigonis 58, 104 42


Brnčičeva ulica 049A, 1231


Tsarigradsko Shose Blvd. 115i, 1784


Josipa Marohnića 1, 10000