What are the opening hours?

Monday 8:30am - 5:30pm Tuesday 8:30am - 5:30pm Wednesday 8:30am - 5:30pm Thursday 8:30am - 5:30pm Friday 8:30am - 5:30pm

O'Donnell & Naccarato

Name: O'Donnell & Naccarato
Address: 701 Market Street, Ste 6000, Philadelphia, PA, 19106, US
Telephone: +12159253788
Price range: $

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O'Donnell & Naccarato

Creative Structural Engineers Operating Nationally to Support the Entire Building Life Cycle

Tracing its roots to 1954, O’Donnell & Naccarato, a consulting structural engineering firm with facade restoration, parking consultation and garage restoration divisions, has been recognized and awarded for its expertise in designing and managing projects of all sizes, types and levels of complexity.

05/28/2026

Over the past few weekends, our offices swapped conference rooms for zoo exhibits, bowling lanes, and baseball games, bringing employees and their families out to enjoy some well-deserved fun. No matter where we ended up, the goal was the same: spending time together and making room for the moments that don't always fit into the workday.

05/26/2026

Some of our most rewarding projects begin not with a blank slate, but with a building full of history that deserves another chapter. Behind every restored facade and reinforced foundation is a team that takes pride in honoring what came before. This National Preservation Month, we're proud to look back at the historic buildings we've helped bring back to life across the country.

05/13/2026

We’re proud to support the ACE Mentor Program of Greater Philadelphia as it celebrates its 25th Anniversary, a milestone that reflects decades of mentorship, opportunity, and meaningful connections across the AEC community.

The annual scholarship breakfast recognizes outstanding high school students as they receive college scholarships, along with the mentors, partners, and leaders who make the program possible.

This year’s celebration was especially meaningful for us. Our CEO, Anthony Naccarato, was honored with the 25th Anniversary Founder Award. As one of the individuals who helped establish the chapter 25 years ago, his commitment to mentorship and student opportunity has been part of the program’s story from the very beginning.

Congratulations to this year’s scholarship recipients and to the mentors who continue to make a lasting impact. The future of our industry is in good hands. 🎉

05/12/2026

O’Donnell & Naccarato is pleased to announce that Jonathan Drujak, SE, PE, FRSE, SI, has joined the firm as Senior Associate and Director of our Miami office.

Jonathan brings more than 20 years of experience in structural engineering and development consulting, with a background spanning structural design, code review, and construction-phase services across both the public and private sectors.

His addition reflects an exciting step forward as we continue growing our presence in South Florida. Please join us in welcoming Jonathan to the team!

Learn more: https://www.o-n.com/news/odonnell-naccarato-welcomes-jonathan-drujak-to-lead-miami-office/

05/05/2026

Pulling together for a purpose✈️

Employees from our Philadelphia and Indiana offices participated in recent plane pull events, helping raise funds for some incredible organizations.

In Philadelphia, our team partnered with and other firms, with proceeds benefiting and its mission to care for families. In Indiana, our team joined forces with to support multiple children’s hospitals and charitable organizations.

All hands on deck for a great cause!

04/30/2026

We’re excited to share that the new Westfield Police Headquarters in Westfield, IN has officially topped out, marking a major milestone in construction.

O’Donnell & Naccarato is serving as Structural Engineer of Record on the $35 million, 63,000-square-foot facility, which will support the city’s continued growth and public safety needs.

Read more about the project: https://www.o-n.com/news/odonnell-naccarato-celebrates-topping-out-of-35m-westfield-police-headquarters-in-westfield-indiana/

04/22/2026

Happy Administrative Professionals Day to the team that keeps everything running smoothly. Your support, organization, and dedication make a lasting impact across the firm, and we are truly grateful for all that you do. Today also happens to be Earth Day, so we are celebrating with a small nod to growth and gratitude, money trees to help us say thanks. Here's to those who keep everything rooted, growing, and thriving🌿

04/17/2026

We’re proud to be a Bronze Sponsor of AIA Triangle, supporting excellence in architectural design across the Raleigh-Durham-Chapel Hill region.

Principal Brian Rawlings and Regional Director David Blankfard represented O’Donnell & Naccarato at last night’s Design Awards Reception, joining the design community to celebrate standout projects and ideas shaping the built environment.

A great evening focused on thoughtful design and its impact on our communities.

04/15/2026

Every project has a story behind it, and this morning we got to tell one of ours.

O&N Principal Liam McNamara presented at the SEAoP Breakfast Seminar, highlighting the Honorable Frank J. Guarini Justice Complex, a 2025 SEAoP Award-winning project.

The presentation touched on some of the structural challenges that shaped the project, from building over active rail tunnels and navigating tough ground conditions to designing complex cantilevers and specialized structural systems.

Always great to connect and learn from others in the industry. Thanks to SEAoP for hosting.

Address

701 Market Street, Ste 6000
Philadelphia, PA
19106

Opening Hours

Monday	8:30am - 5:30pm
Tuesday	8:30am - 5:30pm
Wednesday	8:30am - 5:30pm
Thursday	8:30am - 5:30pm
Friday	8:30am - 5:30pm

Telephone

+12159253788

Website

http://www.o-n.com/

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