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Wastewater treatment plant Aerial view of motorway junction


For over 20 years we have been contributing to Bulgaria's infrastructure development in areas including renewable power generation, motorways and border crossings, water and waste disposal.

construction supervision of 70km motorway
managing upgrade of 660km primary roads
design of 88km rail line


We’re working to improve water quality while reducing the cost of operating and maintaining water and sewerage infrastructure, with projects in Sofia, Haskovo, Plodiv, Burgas and St Zagora. We’re upgrading infrastructure and introducing improved management technologies and techniques, including procurement and contract advice, project management, hydraulic modelling and leakage detection systems.

Bulgarian government appointed us as technical advisor to develop a new wastewater treatment plant and related sewerage infrastructure in Haskovo, as part of a European Investment Bank funded initiative. Previously the town’s untreated wastewater was discharged into the Haskovska River. The treatment plant improves the water quality of the Aegean Sea, contributes towards a better environment and reduces the risk to public health. The effluent standard complies with EC Directive 91/271/ EEC and the treatment and disposal of sludge complies with relevant EC directives.


We've been helping to project manage the country's ongoing programme of road and bridge rehabilitation. We supervised construction of 70km of motorway between the Bulgarian capital Sofia and the Black Sea port of Burgas and are currently managing the country’s Transit Roads Project IV, involving upgrading, rehabilitation and reconstruction of 660km of primary roads. This mammoth programme of work is funded by the Government of Bulgaria and the European Investment Bank. We're also developing an integrated transport plan to improve sustainability and safety in Sofia.

European Union funding aimed at improving connectivity and reducing the volume of freight carried by road is fuelling significant work in the heavy rail sector. We led preliminary design, environmental impact and economic viability studies for an 88km rail line between Radomir and Gueshevo.


We have been busy on a range of essential environmental projects. We provided technical assistance including training to the Ministry of Environment and Water for a €60 million EU-funded project to implement six regional waste disposal sites in Montana, Pernik, Rousse, Sevlievo, Silistra and Sozopol, plus a transfer station in Primorsko, on the Black Sea.


We have worked a number of significant wind power projects in Bulgaria, helping to increase the country’s own electricity generation.

For the 60MW Suvorovo Wind Farm development in Varna Province we provided lender’s technical advisory services to the European Bank for Reconstruction and Development (EBRD) and the Black Sea Trade and Development Bank (BSTDB).

The project consists of 30 Gamesa G90 2MW wind turbines and a high voltage substation and generates around 130GW of electricity per year. We are now providing operations monitoring of the wind farm which involves reviewing of the technical and financial performance of the project.

We also provided lenders’ technical advisory services during construction of the 35MW Kaliakra wind farm on the black sea coast of Bulgaria. Since commercial operation began in 2008, we continue to undertake annual operation monitoring to report on technical issues affecting the wind farm’s performance.

The neighbouring 156MW St Nikola wind farm began operation in 2010. We have undertaken an on-going role as lender’s technical advisor to the European Bank for Reconstruction and Development (EBRD). We also monitored the construction phase and continue to provide operation monitoring.

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