Company lists · Data refreshed September 2026

Top 14 Structural engineering staffing based in Philadelphia, United States

RevenueBase identified 25 structural engineering staffing headquartered in Philadelphia, United States as of September 2026 and tracks 671 professional contacts across them, including 459 with verified work emails. Houston is the largest hub.

This list covers structural engineering staffing headquartered in Philadelphia, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 6, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 6, 2026 86% judged on-target in blind review
25Companies
671Contacts tracked
459Verified emails
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The 14 largest structural engineering staffing based in Philadelphia, United States

Ranked by team size
Top 14 of 25 structural engineering staffing based in Philadelphia, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to structural engineering staffing: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 6, 2026201-500401 contacts →

“Burns is a nationally respected provider of specialized engineering services, bringing highly-technical, sought-after engineering expertise to transportation, critical…”

Source: company website · checked Sep 6, 2026
2Strong evidencePhiladelphia, PA, United StatesHQ checked Sep 6, 202651-200103 contacts →

“O’Donnell & Naccarato’s structural engineering practice has grown from a 3-person company in 1981 into a national firm of over 120 people spread over ten offices.”

Source: company website · checked Sep 6, 2026
3Strong evidencePhiladelphia, PA, United StatesHQ checked Sep 6, 202611-5041 contacts →

“Keast & Hood is a WBE/WOSB structural engineering firm founded in 1953 and located in Philadelphia, PA.”

Source: company website · checked Sep 6, 2026
4Strong evidencePhiladelphia, PA, United StatesHQ checked Sep 6, 202611-5022 contacts →

“JBCI is a structural engineering firm based in Philadelphia.”

Source: company website · checked Sep 6, 2026
5Strong evidencePhiladelphia, PA, United StatesHQ checked Sep 6, 202611-5012 contacts →

“Larsen & Landis is a structural engineering firm offering services to architects, to other professionals in development, design, and construction, and to building owners.”

Source: company website · checked Sep 6, 2026
6Strong evidencePhiladelphia, PA, United StatesHQ checked Sep 6, 202611-5011 contacts →

“Leake Engineering is a dynamic structural and civil engineering firm based in Philadelphia, PA, with a nationwide footprint.”

Source: company website · checked Sep 6, 2026
7Indirect evidencePhiladelphia, PA, United StatesHQ checked Sep 6, 20261-109 contacts →

“Full service recruiting company based out of the Philadelphia, Pennsylvania area.”

Source: company website · checked Sep 6, 2026
8Strong evidencePhiladelphia, PA, United StatesHQ checked Sep 6, 202611-506 contacts →

“A forward thinking and technical civil - structural - construction engineering consulting firm laser focused on our clients' and employees' success stories.”

Source: company website · checked Sep 6, 2026
9Strong evidencePhiladelphia, United StatesHQ checked Sep 6, 20261-105 contacts →

“Established in 2022, Varano Tovinsky is a consulting structural engineering firm located just outside of Philadelphia.”

Source: company website · checked Sep 6, 2026
10Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 6, 20261-104 contacts →

“Hutec Engineering Inc.”

Source: company website · checked Sep 6, 2026
11Indirect evidencePhiladelphia, United StatesHQ checked Sep 6, 202611-504 contacts →

“We build relationships on trust, and we deliver results that last.”

Source: company website · checked Sep 6, 2026
12Partial evidencePhiladelphia, PA, United StatesHQ checked Sep 6, 202611-501 contacts →

“TANTALA ASSOCIATES, LLC is a multi-disciplined, professional, consulting-engineering firm established in 1966.”

Source: company website · checked Sep 6, 2026
13Indirect evidencePhiladelphia, PA, United StatesHQ checked Sep 6, 20261-101 contacts →
Source: company website · checked Sep 6, 2026
14Indirect evidencePhiladelphia, PA, United StatesHQ checked Sep 6, 20261-101 contacts →
Source: company website · checked Sep 6, 2026

Showing 14 of 25 structural engineering staffing based in Philadelphia, United States

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Structural engineering staffing based in Philadelphia, United States at a glance

As of Sep 6, 2026
68.4%Verified-email coverage
26.8Average contacts per company
11-50Median size (employees)
828.0%Largest-city concentration · Houston
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
11
11-50
11
51-200
1
201-500
2

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Philadelphia, over 25 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among structural engineering staffing, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Philadelphia, United States whose own description of what they do matches “structural engineering staffing”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names structural engineering staffing), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among structural engineering staffing, and records with no verified work email. Companies headquartered outside Philadelphia are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 459 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 6, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names structural engineering staffing, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many structural engineering staffing are there based in Philadelphia, United States?

RevenueBase identified 25 structural engineering staffing headquartered in Philadelphia, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Burns Engineering, INC, headquartered in Philadelphia, tops this list with the largest team on record.

Which city has the most structural engineering staffing?

Houston leads with 207 headquartered companies, followed by New York (142) and Dallas (83).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 459 verified decision-maker contacts tracked across these 25 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 6, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.