Once again, among the 50 largest architecture firms in the world

IDOM has once again been recognized as one of the world’s leading international architecture firms, ranking 46th in the WA100 2026 list. This annual ranking, compiled by the British magazine Building Design (BD), analyzes the world’s 100 largest architecture firms based on the number of architects employed and their global activity.

In addition to maintaining a position in the top fifty, IDOM stands out in several categories in the report.

• 3rd ranking in South America and Central America, within the regional ranking of firms by revenue.
• 4th ranking in the Cultural Facilities sector, according to the analysis by sectoral markets.
• 2nd ranking in Infrastructure, positioning itself as one of the leading firms in this field.

IDOM repeats as the highest-ranked Spanish firm in the WA100 2026 list, reflecting its team’s ability to develop significant projects in multiple sectors and regions.

The WA100 report is based on a global survey of leading industry practices and has become a benchmark for measuring the size, evolution, and specialization of architecture worldwide.

January 27, 2026