The Integral Group Belgrade design studio [formerly Prleks] specializes in HVAC design for residential buildings and infrastructure. Its portfolio includes hundreds of successfully implemented projects in Serbia and around the world, ranging from government institutions to large international corporations.

Since 1990, this design studio has created quality engineering design solutions and keeping pace with advancing technologies to turn customer needs into sustainable products and services. As a pioneer in the use of the Revit MEP programs in Serbia, the Belgrade office has opened the door to a new world of BIM design. In addition to engineering and BIM services, the Belgrade office also performs advisory services.

The Belgrade team has made major contributions to the development of a wide range of infrastructure facilities from government institutions, ministries, universities, hospitals, shopping malls, office and residential buildings to energy plants, hotels, cultural heritage buildings, and telecommunications facilities. This team continues to work with the world’s leading architectural and design houses, securing its place in exciting projects around the world.

Belgrade Design Studio

Makenzijeva 57
Vračar, Beograd, Serbia
+038 11 7455538
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News & Events for Belgrade

Integral Group proudly supports the Carbon Leadership Forum as a signatory member of the MEP 2040 Challenge. To address the impact of the built environment on climate change, systems engineers have a critical role to play in both operational and embodied carbon and need to embrace a whole... Read more
Autodesk University (AU) is the design and make conference for innovators everywhere who reimagine possible. This year Autodesk invites thousands of participants worldwide to advance their careers and grow their businesses with 350+ sessions across architecture, engineering, construction, design, manufacturing, and media and entertainment.   AU w... Read more
International Women’s Day (IWD) is a global day celebrating the social, economic, cultural, and political achievements of women – while also marking a call to action for accelerating gender equality. The first International Women’s Day occurred in 1911, supported by over one million people. Today, Significant activity is witnessed worl... Read more

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Belgrade Leadership

  • Regional Director, Europe

    As Regional Director of Europe and the United Kingdom, Brian is a thoughtful leader partnering with clients and technical teams to deliver best in class projects worldwide.

    Passionate in his advocacy for global sustainability and Net Zero targets, Brian recognizes the urgent need for accelerated change in the built environment. He has built a team of trusted design professionals and respected thought leaders to provide a robust, client-focused experience, and developed a long-lasting network of project partners.

    Through ongoing mentorship and development of staff, Brian embraces the opportunity and responsibility to bring new talent and vision into our business and industry.  He is an internal sponsor of the firm’s CIBSE Accredited Training Scheme and Vice Chair of the CIBSE Training and Development panel.

    Brian is also a CIBSE Fellow and Fitwel Ambassador, committed to promoting health and wellbeing in the built environment.


  • Managing Principal, Belgrade

    Zoran Stojkovic, Managing Principal in Belgrade brings twenty years of mechanical design experience to Integral Group. Zoran helped grow his family business, formerly Prleks, into a thriving MEP design practice until it joined Integral Group in 2019. His designs are tailored to clients’ needs while enhancing a project’s performance and positively impacting the health and wellness of the occupants. As managing principal, Zoran will lead the Belgrade team to greater inter-office collaboration with Integral’s 20+ international offices and help grow Integral Group’s global presence both within Serbia, mainland Europe, and around the globe.

  • Principal, Belgrade

    Aleksandar Stojkovic, Technical Director in Belgrade, office brings over twenty-three years of mechanical design experience to Integral Group. His broad experience extends across different building and facility types including residential, luxury hotel resorts, hospitals, pharmaceutical factories, and office buildings. Aleksandar always strives for the best approach in his designs and implements strategic solutions for a wide range of complex projects. Joining his family’s design practice formerly, Prleks, Aleksandar saw the successful growth of the scale and scope of the projects managed throughout Serbia and abroad. He is excited for the new challenges in growing and further developing his team’s technical expertise to spread Integral’s deep green mission throughout continental Europe.

  • Head of Marketing and Business Development, UK + Europe

    An experienced marketer with over twenty years of experience in construction and consultancy services, Lisa Kenny leads the marketing and business development team in the UK and Europe. Combining her passion and drive for sustainability with developing marketing and communication strategies, she is responsible for building the firm’s external profile and influence, extending its reach and impact that supports the business sales strategy. Lisa also leads client experience delivery, regularly conducting feedback to steer performance within the internal teams to ensure project success and continual improvement.