Expert advisory and consulting firm expands its operations with the opening of its latest office in Europe

WASHINGTON, DC — June 4, 2025 — Delta Consulting Group, an employee-owned expert advisory consultancy specializing in construction, forensics, investigations and valuation, announced today the opening of a new office in Spain.

With an established presence in the United Kingdom and now Spain, Delta is extending its footprint across Europe and unlocking new opportunities throughout the world.

Delta Consulting Group Chief Executive Officer Darin L. Buchalter celebrated the expansion, stating: “Our move into Spain is a deliberate extension of our long-established European presence that brings us closer to our clients and sharpens our ability to address high-stakes matters around the world.” 

Delta has performed services in more than 90 countries, with its principal offices in Washington, DC, Toronto and London.

Senior Director Oscar Martinez Lamigueiro, who brings deep industry experience working with owners, contractors and their counsel across Europe and Latin America, will lead the Spanish office. He remarked, “The entire group is thrilled to join Delta. For our clients, it means expanded reach, greater efficiencies, and access to the best experts who are able to deliver high quality work at a competitive cost. For our staff, as employee-owners of Delta, it means greater opportunity, career development and sophisticated resources that allow us to focus on doing what we do best – serving our clients.”

About Delta Consulting Group

Since 2000, Delta Consulting Group has provided advisory, risk mitigation and dispute resolution services with prominent global law firms, government agencies, and top companies in over 90 countries. Our multi-disciplined professionals in engineering, accounting, finance, economics, investigations, fraud, construction, project management and litigation support deliver independent advice to resolve our clients’ most complex situations. A 100 percent employee-owned company, Delta was named a 2024 Top Workplace by The Washington Post and is a Company Member of the Chartered Institute of Buildings (CIOB).