Firm / Organisation

Guyer & Regules

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This content is provided by Guyer & Regules.

Senior Partner: Nicolás Herrera
Number of partners worldwide: 18
Number of lawyers worldwide: 101

Firm Overview:
Guyer & Regules is considered Uruguay’s blue chip firm and the first choice for international and domestic complex legal, accounting and tax work. Such reputation is grounded on the largest group of the most experienced partners in the country, who lead a solid team of internationally trained professionals with experts in every field of business law, and promote a culture of innovation within the firm.

Guyer & Regules is proud to have been consistently recognized as “Uruguayan Law Firm of the Year” for eight years and the first and only Uruguayan firm recognized as “Latin America Law firm of the Year” by Chambers & Partners.

The firm has also been recognized in five occasions as “Uruguay Tax Firm of the Year” by ITR – Euromoney, as “Uruguay Firm of the Year” by IFLR – Euromoney and as “Firm of the Year – Uruguay” by Who’s Who Legal for eight consecutive years.

Most firms define their value proposition in terms of the companies and institutions they serve. Guyer & Regules challenges this, believing that while the firm’s duty is to the client, that is, the institutions, at the same time the work is delivered to client´s people. Performing with excellence, expertise, value, responsiveness, creativity and consistency, is not enough. Trust is a personal feeling. You trust people. So the firm strives to grow its capacity to develop strong and mutually rewarding personal working relationships. It´s by developing a rich, challenging, personal working relationship with the people within the institutions, that Guyer & Regules truly differentiates itself.

Main Areas of Practice:
Banking & Finance:

Guyer & Regules’ leadership is undisputed advising 66% of the private banks active in Uruguay and two out of three large private pension fund managers. It has also been the only Uruguayan firm in the past 30 years in Uruguayan sovereign debt deals.

Corporate, M&A:

As Chambers & Partners states, Guyer & Regules “continues to set the pace in the corporate sphere”, having participated in 63% of major M&A deals made public in Uruguay over the past years and representing 10 of the top 15 Uruguayan leading exporting companies in 2019.

Tax & Accounting:
It is by far the most senior team on the market, formed by lawyers and CPAs, which allows for greater depth and breadth on tax matters. As Chambers & Partners states, “Guyer lawyers are sensible, commercial, switched-on and thorough in their approach” “The firm is always excellent in providing the services from a technical and practical perspective. They are very practical tax advisers.”

Real Estate:
With 32 real estate lawyers, it is by far the largest and most experienced team in the country, recognized by Chambers Latin America as a “market-leading department with a deep bench of seasoned professionals offering long-standing expertise in this practice area”. This practice, which includes 3 partners and 2 counsels, has a very strong presence in REITs, housing, tourism and residential developments, industrial sites, agribusiness and forestry investments.

Litigation & Arbitration:
Guyer & Regules has a dedicated, strong and successful litigation team with a “solid reputation” as Chambers Latin America states. It specializes in complex civil and commercial litigation and arbitration, domestic and international. Guyer & Regules’ litigation and arbitration professionals have broad experience dealing with all types of disputes, ranging from banking litigation, corporate disputes, breaches of contract actions, to domestic and international arbitration disputes.

The team excels for its services both in advisory and litigious labour matters. “The lawyers have deep technical knowledge, are committed to the client and stay up to date regarding changes in the law” as Chambers Latin America reviews. Its lawyers have represented all of the Uruguayan financial entities in the salary collective bargaining agreement negotiations with the banking union and the government, as well as the Chamber of Insurance Companies. Other recent work highlights include advising Sherwin Williams in all labour aspects regarding the closing of an industrial plant, and assisting Petrobras and Eurofarma in labour disputes.

Projects & Energy:

The projects and energy team is the largest of its kind in Uruguay and the market leader. The firm’s compact, top-notch team is a solid pick for even the most complex of deals. Guyer & Regules is “highly sought after to advise on the full range of energy and natural resources matters”, as Chambers & Partners states, with an impressive market share of infrastructure, renewable and oil and gas transactions. The firm has the greatest and most experienced team in Uruguay. The firm’s excellent and reputable team has advised clients spanning the entire industry, from the developers behind Uruguay’s first solar and wind projects to the major oil and gas companies. In the infrastructure field, the firm’s professionals have assisted sponsors and also financial entities in several projects.

International Work:

Internationally renowned Lex Mundi, World Services Group, World Law Group, Interlex, Multilaw, Club de Abogados and Interlaw, selected the firm as their sole Uruguayan member, thus ensuring immediate access to the best lawyers worldwide and enabling the firm to reach and provide global services.


Guyer & Regules’ clientele includes many market leaders in every sector of the economy. Some representative clients are: ADT, Avon, Bank of America, Banco Itaú, BBVA, Banque Heritage, Baxter International, Boskalis International, BG, Cargill, Chevron Texaco, Citibank, DEG, Deutsche Bank, EDC, Emirates, FMO, Gol, Hilton, HSBC, IDB, Jazz Air, Johnson & Johnson, JP Morgan Chase, L’Oreal, Louis Dreyfus, Louis Vuitton, Metropolitan Life, Minerva, Morgan Stanley, Nissan, Petrobras, Philip Morris, Renault, Roche, Royal & Sun Alliance, Sabre, Scotiabank, Stora Enso, Techint, Telefónica, Telesat Canada, Total, Tullow, Unilever, Volvo.