KPFF Consulting Engineers, CMTA, Dewberry, Salas O'Brien, IMEG, CHA Consulting, and Osborn Engineering top Building Design+Construction's ranking of the nation's largest public library engineering and engineering/architecture (EA) firms for 2026, as reported in BD+C's 2026 Giants 400 Report.

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