Leadership through excellence

55+ Years of Quality, Commitment and Trust

We lead ground-breaking construction projects across South-eastern Europe

Pioneering Global Sustainability

We stand for a sustainable and circular construction sector for the generations to come

A Reliable Partner to Bring Your Construction Plans to Life

We cover the entire life cycle of wide-ranging construction projects

Who we are

Connecting, creating, inspiring

GBS (Glavbolgarstroy) is the largest construction group in Bulgaria and one of the biggest in South-eastern Europe. We specialise in infrastructure, residential, commercial and industrial construction projects, and we pioneer sustainability in everything we do.

More about GBS

What we do

Bringing construction and renovation plans to life

Our services cover the entire life cycle of construction projects, from conceptualisation, planning, estimation and design, to construction, management, operation and maintenance.

Energy Infrastructure

Transport Infrastructure

Industrial Buildings

Public Buildings

Commercial and Office Buildings

Residential Construction

Hospitals

Water Infrastructure

Retail and Leisure

Hotels and Resorts

Grain Storages

Pre-stressed concrete structures

Ventilation

Restorations

GBS IN NUMBERS

years of ground-breaking construction projects

2,500

employees across Europe

26M

square metres of completed projects

News and Insights

What we’ve been up to and what we think

See all news

12 Mar 2025

“Glavbolgarstroy” and Siemens Energy signed a Memorandum of Understanding on major infrastructure projects in the country

The German Ambassador, H.E. Irene Maria Plank, emphasized the long-standing cooperation between the two countries on key projects for the Bulgarian economy and expressed her support for strengthening bilateral...

11 Mar 2025

Radoslav Kotlarov, CEO, GBS Invest: The quality of the property will be a determining factor in the housing market in 2025.

A notable shift in client priorities has been observed, moving from an initial focus on location to the overall quality of the product and living environment. This was one of the key insights discussed at the R...

05 Mar 2025

The largest climbing gym in the Balkans – Balkan Climbing, celebrated its first anniversary with Olympic champion Janja Garnbret

Balkan Climbing – the largest climbing gym in the Balkans – marked its first anniversary with an impressive event that gathered hundreds of enthusiasts, professionals, and climbing aficionados from across the c...