Draft:O'Donnell and Naccarato

  • Comment: This page was moved from main to draft because it wasn't ready, but was resubmitted without any changes. It's pretty close, but it doesn't meet WP:NCORP yet. Large portions of this aren't sourced properly (inline citations don't match). Please improve the article before resubmitting or it will get declined again. Clearfrienda 💬 03:22, 30 April 2024 (UTC)


O'Donnell and Naccarato
FormerlySeymour Greenberg (1954–1974)
Greenberg, O'Donnell and Naccarato (1974–1981)
Company typeStructural Engineering
IndustryCivil engineering
Founded1954; 70 years ago (1954) in Philadelphia, United States
FounderSeymour Greenberg
Number of locations
6 (2023)
Area served
Northeast United States
Key people
William O’Donnell
Peter Naccarato
Revenue$63.7M (2022)
OwnerPeter Naccarato
Number of employees
129 (2022)
Websitewww.o-n.com

O'Donnell and Naccarato (O&N) is a structural engineering firm in Philadelphia, Pennsylvania with offices in New York City, New Jersey, Florida, and Indiana.