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Key contacts
Managing Partner: Borislav Boyanov
Quick facts
Number of lawyers

40

Number of partners

12

Languages

English, Russian, Spanish, Italian, Bulgarian

Key practice areas
Banking and finance
Financial and corporate
M&A
Energy and infrastructure
Project development
Firm overview

Established in 1990, Boyanov & Co. (formerly Borislav Boyanov & Co.) has earned wide international and local recognition as the preferred law firm for many transnational businesses expanding their portfolios in Bulgaria. The firm has advised on most of Bulgaria’s landmark transactions. Its client portfolio includes over 3,000 local and international companies, governments, and institutions. Since its establishment, the firm has always been ranked as a market leader for the excellence of its integrated services, drawing on years of experience in international transactions and structures, on in-depth knowledge of local, European, and international law, and on the brilliance of its professionals.

Boyanov & Co. is a founding member of The South East Europe Legal Group (SEE Legal), a unique organisation of the leading national law firms across 12 countries in South-East Europe, aiming to provide a one-stop-shop for the best legal advice in the region.

Network memberships
  • American Bar Association
  • AmCham Bulgaria (AmCham)
  • Association of Honorary Consuls in Bulgaria (AHCB)
  • Barcelona Club
  • British Bulgarian Business Association (BBBA)
  • Bulgarian Business Leaders Forum (BBLF)
  • German-Bulgarian Chamber of Commerce and Industry (GBCCI)
  • International Bar Association (IBA)
  • Indian Bulgarian Business Chamber (IBBC)
  • International Trademark Association (INTA)
  • Ius Laboris Global Human Resources Lawyers (Ius Laboris)
  • Legal Network International (LNI)
  • South East Europe Legal Group (SEE Legal)
  • Three Seas Legal Alliance (TSLA)
  • World Services Group (WSG)
Practice Areas & Sector Specialisations
  • Banking and finance
  • Capital markets
  • Competition/antitrust
  • Construction
  • Corporate and M&A
  • Dispute resolution
  • Intellectual property
  • Labour and employment
  • Tax
  • Restructuring and insolvency
  • Regulatory
  • Investment funds
  • Private equity
Address:
82 Patriarch Evtimii Blvd.
Sofia, 1463
Tel:+35928055055 Email:Contact Us Web Address:https://boyanov.com
Rankings published in 2026
Banking and finance
Tier 1
23 firms ranked
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Tier 1

Boyanov & Co
5 practice areas
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CMS Sofia
5 practice areas
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Djingov Gouginski Kyutchukov & Velichkov
5 practice areas
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Eversheds Sutherland Bulgaria
5 practice areas
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Kinstellar
4 practice areas
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Schoenherr
5 practice areas
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Tier 2

Kambourov & Partners
5 practice areas
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Spasov & Bratanov
5 practice areas
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Wolf Theiss
5 practice areas
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Tier 3

Deloitte Legal Law Firm
4 practice areas
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Dimitrov Petrov & Co
5 practice areas
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Penkov Markov & Partners
5 practice areas
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Tier 4

Arsov Natchev Ganeva
5 practice areas
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Dinova Rusev & Partners
5 practice areas
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Eurolex Bulgaria
3 practice areas
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Georgiev Todorov & Co
5 practice areas
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Gugushev & Partners
5 practice areas
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Tier 5

Act legal Bulgaria
4 practice areas
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CERHA HEMPEL Gerginov
4 practice areas
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Dobrev & Lyutskanov
4 practice areas
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Notable

Ilieva Voutcheva & Co
4 practice areas
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Kinkin & Partners
5 practice areas
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Sabev & Partners
3 practice areas
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M&A
Tier 1
28 firms ranked
View full list

Tier 1

Boyanov & Co
5 practice areas
View full profile
CMS Sofia
5 practice areas
View profile
Djingov Gouginski Kyutchukov & Velichkov
5 practice areas
View full profile
Kambourov & Partners
5 practice areas
View profile
Kinstellar
4 practice areas
View profile
Schoenherr
5 practice areas
View profile

Tier 2

Dimitrov Petrov & Co
5 practice areas
View profile
Penkov Markov & Partners
5 practice areas
View profile
Wolf Theiss
5 practice areas
View profile

Tier 3

CERHA HEMPEL Gerginov
4 practice areas
View full profile
Deloitte Legal Law Firm
4 practice areas
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Eversheds Sutherland Bulgaria
5 practice areas
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Hristov & Partners
3 practice areas
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Tier 4

Arsov Natchev Ganeva
5 practice areas
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Dinova Rusev & Partners
5 practice areas
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Gugushev & Partners
5 practice areas
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Ilieva Voutcheva & Co
4 practice areas
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Komarevski, Dimitrov and Partners
4 practice areas
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Spasov & Bratanov
5 practice areas
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Tier 5

Act legal Bulgaria
4 practice areas
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Dobrev & Lyutskanov
4 practice areas
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Georgiev Todorov & Co
5 practice areas
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Kinkin & Partners
5 practice areas
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Nina Boteva Law Office
3 practice areas
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Notable

CasePro
3 practice areas
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Eurolex Bulgaria
3 practice areas
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Peterka & Partners
5 practice areas
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Popov, Arnaudov & Partners
5 practice areas
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Project development
Tier 1
21 firms ranked
View full list

Tier 1

Boyanov & Co
5 practice areas
View full profile
CMS Sofia
5 practice areas
View profile
Djingov Gouginski Kyutchukov & Velichkov
5 practice areas
View full profile
Kambourov & Partners
5 practice areas
View profile

Tier 2

Dimitrov Petrov & Co
5 practice areas
View profile
Kinstellar
4 practice areas
View profile
Penkov Markov & Partners
5 practice areas
View profile
Schoenherr
5 practice areas
View profile

Tier 3

Dinova Rusev & Partners
5 practice areas
View profile
Georgiev Todorov & Co
5 practice areas
View profile
Wolf Theiss
5 practice areas
View profile

Tier 4

Act legal Bulgaria
4 practice areas
View profile
Arsov Natchev Ganeva
5 practice areas
View profile
Deloitte Legal Law Firm
4 practice areas
View profile
Gugushev & Partners
5 practice areas
View profile
Kinkin & Partners
5 practice areas
View full profile
Komarevski, Dimitrov and Partners
4 practice areas
View profile
Spasov & Bratanov
5 practice areas
View full profile

Tier 5

Dobrev & Lyutskanov
4 practice areas
View profile
Ilieva Voutcheva & Co
4 practice areas
View profile

Notable

Popov, Arnaudov & Partners
5 practice areas
View profile
Linked Reviews
Financial and corporate

Established in 1990, Boyanov & Co is a full service, independent Bulgarian firm based in Sofia. It is a founding member of SEE Legal, a legal network of 10 firms across Southeast Europe.  

The team is led by managing partner Borislav Boyanov and a wide range of other seasoned lawyers and professionals. The firm is active in advising as local Bulgarian counsel to prominent foreign financial service institutions and investors on cross border M&A and project financing transactions.  

 

Highlights  

Boyanov & Co advised a syndicate of UniCredit Bulbank, United Bulgarian Bank, Eurobank Bulgaria and Raiffeisen Bank International on the financing of the construction and operation of 160 MW photovoltaic power plant in Bulgaria. The team . advised the lenders on the transaction structure in general, the finance documents, the satisfaction of the condition's precedent and conditions subsequent, and carried out a full legal due diligence of the project. They also advised on the real estate and construction aspects of the project. The transaction closed in March 2024.  

The team also advised Generali Holding CEE in the acquisition of Unified Health Insurance Fund Doverie. This included obtaining several reuglatory and concentration clearances in Bulgaria and other jurisdictions. The team acted as lead counsel and was led by partner Yordan Naydenov.  

 

Key Clients  

UniCredit Bulbank AD; DSK Bank AD; United Bulgarian Bank AD; Eurobank Bulgaria AD; JP Morgan SEGenerali CEE Holding; Eurobank Bulgaria; Westinghouse Electric; Mondelez Bulgaria Holding; Dundee Precious Metals; Heidelberg Materials; Actis/Rezolv Energy 

 

Testimonials 2024/2025

We appreciate the team’s professionalism, creativeness, and proposing ideas with sound legal advice. These are practical solutions to achieve our common goals and serve out client in a positive way. The level of responsiveness is exceptionally high. (Banking & Finance) 

The firm has consistently demonstrated strong responsiveness and deep expertise. Their team is highly knowledgeable, not only in legal matters but also in understanding the nuances of our industry. They provide clear, practical advice and are proactive in addressing our needs. The partner assigned to our matters is always available, ensuring continuity and confidence in their support. Their professionalism and reliability make them a valuable legal partner. (M&A) 

Boyanov's team is extremely responsive and very knowledgeable about energy and natural resources matters. (Project Development) 

Boyanov's team stood out in their capacity to analyse a new industry sector, understand the main challenges and find solutions to address them. (Project Development) 

Alexander Chatalbashev's orientation on business focused solutions and good understanding of all transactional details, as well as his availability and responsiveness. (M&A) 

Alexander Chatalbashev is an extremely good listener and adapts very quickly to new situations. He is very responsive and very solution-oriented. (Project Development) 

Georgi Drenski provides well-justified legal advice and offers result driven solutions. He is easy to work with, accessible, and responsive. (Banking & Finance) 

Yordan Naydenov is an exceptional legal professional whose expertise and foresight consistently add value. He demonstrates a deep understanding of both the legal landscape and the specific needs of our business. His ability to anticipate client concerns and proactively offer solutions is particularly impressive. (M&A) 

Yordan Naydenov is always accessible and engaged, he brings clarity and confidence to complex matters, making him a trusted and indispensable advisor. (M&A)

 

Testimonials 2023/2024

Professional, efficient, knowledgeable.” - Bank lending

The professionalism allows for great flexibility in executing their tasks. The team of Mr. Simeonov and Mr. Drenski provided a quick response to our need for organizing all documentation within a tight timeline.” - Bank lending 

I was cooperating with lawyer Mr. Yordan Naydevov from BOYANOV law firm. I was very happy from our cooperation. Deep knowledge of commercial law, huge experience, consistency and prompt replies supported me in taking right decisions.” - Project development  

 

Damian Simeonov 

International, good lawyer, good market knowledge.”  

 

Georgi Drenski 

Communicating with the bank's lawyers on the Bulgarian legislation transposing the international requirements of the deal.”  

 

Yordan Naydenov 

Deep knowledge of commercial law, consistent, accessible, quick response, always on time and good listener to customer problems.”  

11 results11 results
Deal Highlights
12 results12 results
Deal Name Deal Date Firm Name Jurisdiction Deal Type Lawyer Names Client Names Client Role
Three Seas Initiative Investment Fund SA - M&A
2021-05-01
Boyanov & Co
Bulgaria
M&A
Alexander Chatalbashev
Three Seas Initiative Investment Fund SA
Acquirer
NN Group NV - M&A
2021-07-01
Boyanov & Co
Bulgaria
M&A
Yordan Naydenov
NN Group NV
Seller
Mondelez International - M&A
2021-05-01
Boyanov & Co
Bulgaria
M&A
Yordan Naydenov
Mondelez International
Acquirer
Klas Olio - M&A
2021-03-01
Boyanov & Co
Bulgaria
M&A
Yordan Naydenov
Klas Olio
Seller
Borealis AG - M&A
Boyanov & Co
Bulgaria
M&A
Yordan Naydenov
Borealis AG
Seller
M Trak - M&A
Boyanov & Co
Bulgaria
M&A
Nikolay Zisov
M Trak
Acquirer
Enersys Holdings - M&A
2021-05-31
Boyanov & Co
Bulgaria
M&A
Nikolay Zisov
Enersys Holdings
Seller
Black Sea Property PLC - M&A
2021-09-30
Boyanov & Co
Bulgaria
M&A
Yordan Naydenov
Black Sea Property PLC
Seller
Concord USA LLC - M&A
2021-03-01
Boyanov & Co
Bulgaria
M&A
Dimitar Mihaylov
Concord USA LLC
Seller
Golf Okol AD - Project development
Boyanov & Co
Bulgaria
Project development
Nickolay Nickolov
Golf Okol AD
Project company
Fraport AG - Project development
2021-06-01
Boyanov & Co
Bulgaria
Project development
Damian Simeonov
Fraport AG
Concessionaire
The International Investment Bank - Project finance
2021-04-01
Boyanov & Co
Bulgaria
Project finance
Damian Simeonov
The International Investment Bank
Lender
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