Opening its doors in March 2024, boutique firm Assembla is equipped to provide M&A, joint venture and general corporate law advice to private equity funds and corporations in the consumer goods, manufacturing, energy and financial services sectors, among others. The ‘highly-specialised and professional’ team is led by ’excellent lawyer’ Andrés Nieto, who divides his time between Mérida and Mexico City and specialises in M&A, private equity and financing transactions, as well as energy and mining law. Further partner-level input is provided by Alejandra Gutiérrez, who draws on experience advising Mexican and foreign companies on their operations in Mexico, in addition to handling cross-border M&A transactions with real estate components, particularly in the hospitality and tourism sectors. We are saddened to report that co-founding partner Alfonso Razú passed away in September 2025.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- 'Excellent follow-up on issues, not just staying with the transaction. Alfonso Razú, Alejandro Gutiérrez and Sofía Gómez provided excellent service attitude and demonstrated a good sense of urgency.'
- 'At Assembla, we received exceptional advice from partner Andrés Nieto. He was always present in all calls and negotiations. He responds very quickly and is very oriented to solve the issues in conflict to carry out the deal.'
- 'Andrés Nieto was present throughout the deal on all calls and negotiations. While he had a team of lawyers, the deal was led 100% by Andrés Nieto, and that makes the client experience totally different.'
- 'Andrés's personality (pleasant, polite, conversational, with good interpersonal relations) mixed with his intelligence and legal skills (very good lawyer, knowledge of the rules, common sense and judgement) make him an exceptional lawyer. It is the mix that one as a client looks for in any advisor.'
- 'They are highly specialised, super professional, willing to solve all the problems that are part of any negotiation. They are also very quick to deliver results. Their costs are very reasonable compared to certain other firms in the field.'
Key clients
- Hershey’s
- Bridgestone
- Unilever
- Danone
- Apax Partners
- Lexington Capital
- Pernod Ricard
- Consumer & Leasing Investments
- Sura
- Gemex Energía
- Ton Ventures
- Agrinam Acquisition Corporation
- Bite Investments
- Above Foods
- Tanteo Spirits
- Agricola Kompali
- Química Liposoluble
- Pluxee México Fintech, Institución de Fondos de Pago Electrónico
- Odyssey Marine Explorations
- Booking.com
Work highlights
Advised Danone on acquisitions in Mexico.
Advised Lexington Capital and its affiliates on a number of M&A transactions in Mexico.
Advised Grupo Salinas and its affiliates on a number of M&A transactions in Mexico.
Practice head
Andrés Nieto
Other key lawyers
Alejandra Gutiérrez