CMS‘ energy team is highly regarded for its breadth of expertise ranging from the construction and purchase of renewable energy facilities, environmental questions, public procurement processes and energy related arbitrations. Among its client roster are various Bulgarian and international energy and infrastructure companies including nuclear energy companies, oil and gas companies and investors in the area. The practice is jointly led by Kostadin Sirleshtov and Dimitar Zwiatkow . Sirleshtov is head of energy and climate change and is an expert in various energy sources, such as nuclear, renewables and oil and gas, while Zwiatkow focuses on projects, PPPs and public procurement along with renewables.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • ‘CMS are professional, trustworthy and they understand the business and it's problems. This makes it simply easy to work with them!’

  • ‘High level involvement from the team members and management. Smooth and easy communication; high commitment to the assigned task. Excellent knowledge in the specific subject and the specifics of the Bulgarian legislation.’

  • ‘We mostly worked with Mr. Kostadin Sirleshtov (Managing Partner) and Mr. Diyan Georgiev (Associate). Both team members were very committed to the specific task that was asked by us despite the urgent character of it and their professional workload. They showed high expertise with the topics in the area of energy efficiency and financing such projects. This distinguish them from the other companies in the energy topics.’

  • ‘Kostadin Sirleshtov, Borislava Piperkova are both solution-oriented, they give mutual trust & respect and are highly engaged.’

  • ‘A great team of professionals, with extensive expertise in the oil & gas industry. They provide very prompt and client-oriented advice in relation to our offshore oil & gas project in Bulgaria.’

  • ‘Kostadin Sirleshtov (Partner) - exquisite professional, extensive expertise in the oil & gas sector, very client-oriented, strong connection with relevant authorities.'

  • 'Denitsa Dudevska (Senior Associate) - high quality professional, very knowledgeable in the oil & gas legislation, provides high standard legal advice and very promptly.’

Key clients

  • YGY Industries
  • RGREEN INVEST
  • RES Technology and/ ASM-BG Investments
  • Nikan Agro
  • Aksa Enerji
  • Vestas Development
  • Astronergy Solar Development
  • EKO Bulgaria
  • Enka İnşaat ve Sanayi A.Ş.

Work highlights

  • Advised YGY Industries on the sale of the 229-megawatt St. George greenfield solar plant in Bulgaria's Silistra municipality to Rezolv Energy.
  • Advised Vestas Development on the due diligence of a large greenfield wind portfolio, negotiations with local developers and acquisition of two local projects of 600 MW.
  • Advised Nikan Agro on the acquisition of 100 MW green field photovoltaic project and its licensing.

Lawyers

Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.

Practice head

The lawyer(s) leading their teams.

Kostadin Sirleshtov, Dimitar Zwiatkow

Other key lawyers

Denitsa Dudevska, Diyan Georgiev, Borislava Piperkova