Top Telecommunications Building Engineering Firms for 2025

Salas O'Brien, Kimley-Horn, WSP, and French & Parrello Associates top Building Design+Construction's ranking of the nation's largest telecommunications building engineering and engineering/architecture (EA) firms for 2025, as reported in BD+C's 2025 Giants 400 Report.
Source David Barista, Editorial Director
April 7, 2026
Image by Dimitris Vetsikas from Pixabay
Image by Dimitris Vetsikas from Pixabay

Image by Dimitris Vetsikas from Pixabay

Salas O'Brien, Kimley-Horn, WSP, and French & Parrello Associates top Building Design+Construction's ranking of the nation's largest telecommunications building engineering and engineering/architecture (EA) firms for 2025, as reported in BD+C's 2025 Giants 400 Report.

Source: Building Design+Construction's 2025 Giants 400 Report

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