AECOM, CMTA, Jacobs, WSP, Salas O'Brien, IMEG, GFT, NV5 Global, and STV head Building Design+Construction's ranking of the nation's largest K-12 school building engineering and engineering/architecture (EA) firms for 2026, as reported in BD+C's 2026 Giants 400 Report.

For more K-12 school sector rankings, check out:   
• Top 160 K-12 School Sector Architecture and AE Firms
• Top 100 K-12 School Sector Contractors and CM Firms

Source: Building Design+Construction's 2026 Giants 400 Report