Comprehensive Legal and Consulting Services for Business

O2 Consulting advises on mergers and acquisitions, direct, venture, and strategic investments, private equity and venture capital projects, corporate restructurings, and the formation of joint ventures. The team conducts legal, tax, and financial due diligence, structures transactions, prepares transaction documents, and supports negotiations.

Our corporate practice covers the formation and ongoing support of Russian and foreign companies, structuring business and asset ownership, drafting shareholders’ agreements, protecting investors’ rights, and resolving disputes between business owners. O2 Consulting helps establish corporate governance frameworks, allocate authority, and safeguard the legal interests of business stakeholders.

Our tax practice encompasses Russian and international tax advisory services, business and asset structuring, tax support for investments and transactions, tax compliance, preparation for tax audits, and the resolution of disputes with tax authorities.

In international projects, O2 Consulting advises on foreign law, cross-border investments, international taxation, currency controls, and sanctions regulations. The team supports clients in their dealings with Russian and foreign banks, financial institutions, investors, and counterparties.

Dispute Resolution, Insolvency, and Business Protection

O2 Consulting represents clients in corporate, commercial, tax, construction, and property disputes. The firm’s lawyers and advocates handle proceedings before commercial courts and courts of general jurisdiction, and assist with negotiations, mediation, and out-of-court settlements.

Our insolvency practice provides comprehensive support to debtors, creditors, investors, business owners, and executives. The team advises on debt restructuring, distressed assets, challenging transactions, registering creditors’ claims, and subsidiary liability.

The firm also provides criminal defence services for businesses. Our lawyers and advocates assist with inspections, internal investigations, and criminal proceedings relating to business activities, tax claims, corporate disputes, insolvency, and economic crimes.

Artificial Intelligence, LegalTech, and Digital Law

O2 Consulting is developing its artificial intelligence, LegalTech, and digital law practice, combining legal expertise with the capabilities of technical specialists from technology and Big Tech companies.

The team provides legal support for the development and implementation of AI systems at every stage: from selecting technology infrastructure and vetting developers and suppliers to handling data, launching products, and managing legal risks.

O2 Consulting conducts legal and technology audits of AI-based solutions and helps establish rights to models, software, data, and AI-generated outputs. The firm drafts agreements with developers and suppliers, internal policies on the use of generative AI, and requirements for employees’ safe use of AI tools.

Our experts advise on intellectual property, personal data, confidential information, information security, and liability arising from the use of artificial intelligence.

Our LegalTech practice helps in-house legal departments automate contract and document workflows, implement knowledge management systems, develop internal AI tools, and improve the efficiency of the legal function.

The firm’s expertise also covers FinTech, digital financial assets, blockchain, digital platforms, e-commerce, telecommunications, media, personal data protection, and cybersecurity.

Intellectual Property and Technology

O2 Consulting advises on the creation, acquisition, use, commercialisation, and protection of intellectual property. The team works with software, databases, trademarks, inventions, media content, technologies, and other intellectual assets.

The firm conducts IP due diligence, drafts licensing and IP assignment agreements, supports technology transfers, and protects the interests of rights holders. Particular attention is paid to the allocation of rights to work created by employees, contractors, and with the use of artificial intelligence.

Supporting Russian and International Businesses

O2 Consulting’s clients include Russian and international corporations, private equity funds, venture capital funds, strategic investors, financial institutions, technology companies, industrial, construction, and energy groups, business owners, and private investors.

The firm supports projects in information and financial technology, telecommunications and media, banking, manufacturing, construction and real estate, energy, natural resources, oil and gas, retail, FMCG, e-commerce, and agriculture.

O2 Consulting’s international presence in Moscow, Dubai, Astana, Zurich, and Limassol enables the firm to coordinate projects across multiple jurisdictions and provide clients with a single point of contact for legal, tax, financial, and technology advisory services.

Private Wealth and Family Office

O2 Consulting’s own multi-family office provides legal, tax, financial, and administrative services to business owners, high-net-worth individuals, and their families.

The team advises on the structuring and protection of Russian and foreign assets, family investment structures, personal taxation, currency controls, international financial transactions, inheritance, and business succession across generations.

O2 Consulting also assists with family and inheritance law, personal compliance and sanctions compliance, dealings with Russian and foreign banks, real estate ownership, and asset management across various jurisdictions.

Our Team and Professional Approach

O2 Consulting brings together lawyers, advocates, tax advisers, and financial, technology, and industry experts with Russian and international educational backgrounds and experience at leading law, audit, and consulting firms.

A dedicated team is assembled for each project, taking into account the applicable law, industry, parties involved, scale of the business, and relevant jurisdictions. O2 Consulting can advise on an individual transaction or dispute, act as an ongoing legal adviser, or provide comprehensive support for a company’s day-to-day operations.

Our approach is based on a thorough understanding of each client’s business. We assess the legal, tax, financial, and technological aspects of each matter and propose practical solutions aligned with the client’s commercial objectives.

O2 Consulting’s Latest Rankings — 2026

O2 Consulting’s standing as a leading legal adviser is reflected in its performance in Russian and international rankings.

In the Kommersant 2026 Law Firm Rankings O2 Consulting was recognised in 42 categories, including 32 Band 1 rankings. The firm also received 22 recognitions in the best lawyers rankings and was placed in the highest tier, “Legal Market Leaders”.

In Pravo.ru’s 2026 Corporate Law Study O2 Consulting ranked among the top 10 law firms advising on the largest transactions and was recognised among the leaders by average transaction value, as well as in corporate restructurings, corporate disputes, advisory work, and transaction support.

In the individual Pravo.ru-300 Recommended Lawyers 2026 Rankings O2 Consulting’s experts were recommended in corporate law and M&A, tax advisory, private wealth, the digital economy, intellectual property, personal data protection, compliance, sanctions law, family and inheritance law, real estate, energy, and TMT.

In the WEALTH Navigator Legal 2026 Rankings the combined O2-STREAM team was recommended in 24 categories, receiving “Leader” status in 17 categories and “Leading Firm” status in the remaining seven.