Ante Law Firm has once again been recognized as a top-tier law firm in aviation, reaffirming its leading position in the Transport: Aviation category, according to the results of Ukrainian Law Firms 2025: A Handbook for Foreign Clients.

The firm has also been acknowledged for establishing strong practices in Antitrust and Competition, Labor and Employment, and Pharmaceuticals & Healthcare.

Andriy Guck is listed among the notable practitioners in aviation, further solidifying his reputation as one of the most prominent lawyers in the field. He is also recognized for his work in competition, litigation, and pharmaceuticals & healthcare.

Maria Tereshchenko is once again named a notable aviation lawyer, praised for her expertise in passenger rights disputes and aviation regulatory matters.

Scroll down to see how Ante is profiled in the ULF 2025 across different areas of law:

Ante Law Firm is the go-to advisor for aviation and pharmaceutical industry players, renowned for its expertise in sector-specific competition matters, including investigations, advertising, compliance, procurement, and regulatory appeals. The firm is recognized for its expertise in aviation antitrust matters. In a recent highlight Ante represented Bees Airline in challenging the State Aviation Service of Ukraine’s unfair reallocation of unused air routes, with the AMCU ruling that the agency’s actions violated fair competition — an important precedent for the future reopening of Ukrainian airspace. Among the team’s recent cases in the pharmaceutical sector were advising Harwind in the World Bank’s procurement of medical devices including possible antimonopoly claims evaluation; acting for Aristo and its subsidiary esparma on the matters of competition laws with regard to possible violations of competitors and checked advertising materials compliance. Managing partner Andriy Guck is distinguished for his specialist expertise in aviation and pharmaceuticals.

Known for its leading aviation practice, Ante Law Firm specializes in aviation finance and continues to expand its expertise to serving insurance companies. The firm acts on behalf of Lufthansa Technik Landing Gear Services UK in its capacity as a creditor in the bankruptcy case of Ukraine International Airlines. In a recent highlight, the firm provided full legal support to PJSC Innovative Insurance Capital, ensuring compliance with new insurance regulations, guiding its transition, adjusting internal processes, and securing recognition of its non-banking financial group by the National Bank of Ukraine. The firm recently supported DK Vet, the official supplier of veterinary instruments, drugs for veterinary medicine and hygiene products, to carry out debt restructuring with a Belgian company. Managing partner Andriy Guck specializes in aviation finance, while Mariia Tereshchenko oversees insurance matters.

Ante Law Firm is in great demand for employment advisory and dispute resolution, with a recent focus on providing comprehensive guidance related to mobilization and military service during the ongoing period of martial law. Among the highlights was advising pharmaceutical clients, in particular, Acino regarding employees’ reservation from mobilization issues and territorial recruitment center requests; Pharmway Trading on hiring and dismissing staff; supported AbbVie with head of representative office change in Ukraine. The firm is sought after for its long-standing presence in the aviation industry. For example, during the research period the firm advised Air Baltic on certified personnel needed for airline aircraft operator’s certificate in Ukraine, and Qatar Airways on the dismissal of all representative office staff in Ukraine. Andriy Guck, managing partner, is the practice head.

The litigation practice of Ante Law Firm spans commercial, tax, administrative, and insolvency matters. The firm represents Arttrading in challenging a tax authority decision in court and successfully acted for Sanofi-Aventis Ukraine in a dispute over vaccine supply. The firm preserves clients from the aviation sector, and represents Lufthansa Technik Landing Gear Services UK Limited in the bankruptcy proceedings of Ukrainian International Airlines and provides legal support to relatives of victims of flight PS752. Additional work includes representing investors in debt recovery cases and individuals in administrative violation proceedings. Andriy Guck, managing partner, is the main contact.

Ante Law Firm possesses a solid pharmaceutical client roster across the pharmaceutical, medical devices, and healthcare sectors, and is known for its strong focus on regulatory compliance, IP protection, competition law, labor issues, and dispute resolution. Ante also stands out for its sector-specific antitrust expertise, frequently assisting clients with unfair competition cases and advertising compliance. During the research period the firm demonstrated a number of highlights: advising Egis on the application of the Bolar provision in Ukraine to support early-stage research for generic medicines; counseling Aristo Pharma Group and its subsidiary esparma Pharma Services on potential competitor violations and advertising compliance with competition law. The firm is also actively engaged for disputes work, recently assisting DK VET LLC in a veterinary pharmaceutical dispute and subsequent settlement. Another area of the firm’s expertise is the regulation of cannabis circulation for medical, industrial, and scientific purposes, where it advised Pharmway Trading on Ukrainian legislation. Managing partner Andriy Guck is highly visible on the market.

Ante Law Firm boasts the most diverse aviation law practice in Ukraine and represents a roster of high-profile aviation clients. The firm has the reputation of being the go-to firm for major airlines for their operations within the country. During the research period the firm advised Air Baltic on the aircraft operator’s certification procedure in Ukraine and airspace opening in the context of martial law, as well as on double taxation avoidance for air ticket sales in Ukraine; advised Bees Airline on an aircraft parts sales agreement and customs rules, and on the possible bankruptcy procedure for an airline; assisted Air France – KLM on issues related to staff and office freeze until airspace in Ukraine is re-opened. It is notable that the firm represents Lufthansa Technik Landing Gear Services UK Limited as a creditor in the bankruptcy procedure of Ukrainian International Airlines. Andriy Guck, widely recognized for his unparalleled expertise in aviation law, stands out as the prominent practitioner in the sector. Maria Tereshchenko is another key figure, bringing strong experience in passenger claims litigation and aviation regulatory matters.