Leading Mexico Firm JA Del Río Joins Plante Moran.
Joining Forces Strengthens Global Capabilities, Adds Scale and Reinforces Client Service Excellence – Underpinned by Shared Values
Guadalajara, May 6, 2026 — Plante Moran, one of the nation’s largest and most reputable audit, tax, consulting, and wealth management firms, announces Mexico-based JA Del Río will join the firm July 1. The milestone represents Plante Moran’s largest international expansion to date, part of a strategy to enhance its global presence across Latin America, Asia-Pacific and Europe.
Founded in 1988 in Guadalajara, Mexico, JA Del Río is known for its substantial experience in audit, tax, and consulting services. Serving clients across five continents, the firm helps global businesses navigate international trade, tax, risk, and business growth with certainty and clarity.
“After having a presence in Mexico for nearly 20 years, we’re excited to expand Plante Moran’s presence in Latin America by welcoming JA Del Río into our firm,” said Jason Drake, managing partner of Plante Moran. “The firm’s values align with ours, with a focus on delivering high-quality client service, technical excellence, and deep expertise across industries and borders.
“JA Del Río has been a trusted collaborator of ours for years, and their addition marks an important step forward in our international growth.”
For more than 100 years, Plante Moran has helped organizations navigate change—including the complexity of operating internationally. Today, the firm serves clients in more than 150 countries, bringing deep experience in cross‑border operations, risk, and growth.
JA Del Río’s 500+ team members across Mexico, Colombia and Costa Rica will join Plante Moran’s existing Mexico team. The combination brings together two firms aligned in values, culture and approach to client service. Both firms have been recognized as a Great Place to Work® by the organization that determines FORTUNE’s “100 Best” list each year. In addition, Plante Moran and JA Del Río share a deep commitment to delivering exceptional client experiences. JA Del Río is a four-time recipient of ClearlyRated’s Best of Accounting award, receiving an unprecedented 82% net promoter score, a benchmark that reflects high levels of client satisfaction and loyalty.
“We have partnered with Plante Moran for many years, and from day one, it was evident the values and client approach we share was a strategic advantage for our mutual clients,” said Bernardo Del Río, managing partner of JA Del Río. “This combination enhances how we serve clients in Mexico, Colombia, and Costa Rica, bringing additional depth and cross‑border capabilities while preserving the high standard of service they rely on.”
Together, the firms serve clients in manufacturing and distribution, service, health care, life sciences, private equity, financial services, real estate, construction, energy and more.
“Our firms are closely aligned culturally, sharing people-first values, genuine humility, and a strong sense of responsibility,” said Alejandro Rodriguez, leader of Plante Moran Mexico. “I’m looking forward to welcoming the team at JA Del Río and working together to advance our shared vision for sustainable growth, operational excellence, and strong client relationships.”
About Plante Moran
Plante Moran is among the nation’s largest accounting, tax, consulting, and wealth management firms and provides a full line of services to organizations in the following industries: manufacturing and distribution, service, health care, private equity, public sector, financial services, real estate, construction, and energy. Throughout its 100 years in business, the firm has grown to a staff of more than 4,000 professionals throughout the United States and internationally. Plante Moran has been recognized by a number of organizations, including FORTUNE magazine, as one of the country’s best places to work.
For more information, Read the full announcement on https://www.plantemoran.com/get-to-know/news/2026/05/leading-mexico-firm-ja-del-rio-joins-plante-moran
