Company lists · Data refreshed September 2026

Top 25 Infrastructure law firms based in Philadelphia, United States

Name: Infrastructure law firms based in Philadelphia, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 34 companies tracked

RevenueBase identified 34 infrastructure law firms headquartered in Philadelphia, United States as of September 2026 and tracks 10,074 professional contacts across them, including 5,096 with verified work emails. Houston is the largest hub.

This list covers infrastructure law firms 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 21, 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 21, 2026 86% judged on-target in blind review

34Companies

10,074Contacts tracked

5,096Verified emails

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The 25 largest infrastructure law firms based in Philadelphia, United States

Ranked by team size

Top 25 of 34 infrastructure law firms based in Philadelphia, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure law firms: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Dechert LLP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	1,001-5,000	2,041 contacts →
	Partial evidence “Dechert is the law firm that helps business leaders lead.” Source: RevenueBase Database · checked Sep 21, 2026
2	Faegre Drinker	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,848 contacts →
	Indirect evidence “Faegre Drinker is a firm designed for clients.” Source: RevenueBase Database · checked Sep 21, 2026
3	Ballard Spahr LLP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,682 contacts →
	Partial evidence “Ballard Spahr LLP, an Am Law 100 law firm with more than 750 lawyers in 19 U.S.” Source: RevenueBase Database · checked Sep 21, 2026
4	Mccormick Taylor, INC	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	201-500	434 contacts →
	Indirect evidence “McCormick Taylor is a full-service civil engineering firm providing creative design, planning, and environmental solutions to the challenges of everyday life.” Source: RevenueBase Database · checked Sep 21, 2026
5	White And Williams LLP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	201-500	416 contacts →
	Partial evidence “Founded in 1899, White and Williams LLP is a global-reaching, multi-practice law firm with over 200 lawyers in ten offices.” Source: RevenueBase Database · checked Sep 21, 2026
6	Burns Engineering, INC	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	201-500	401 contacts →
	Indirect evidence “Burns is a nationally respected provider of specialized engineering services, bringing highly-technical, sought-after engineering expertise to transportation, critical…” Source: RevenueBase Database · checked Sep 21, 2026
7	Post & Schell, P.C	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	201-500	336 contacts →
	Indirect evidence “For over 50 years, Post & Schell’s attorneys have combined the operational knowledge and insight into the industries they represent with creative legal solutions – and helped…” Source: RevenueBase Database · checked Sep 21, 2026
8	Montgomery Mccracken Walker & Rhoads LLP	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	201-500	212 contacts →
	Indirect evidence “Montgomery McCracken’s collaborative approach – in all we do – delivers access to the right people at the right time, efficiencies in our work, and outcomes our clients need and…” Source: RevenueBase Database · checked Sep 21, 2026
9	Klehr Harrison Harvey Branzburg LLP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	51-200	193 contacts →
	Partial evidence “Klehr Harrison Harvey Branzburg LLP is a dynamic law firm known in the business, financial and legal communities for its aggressive and creative problem-solving skills.” Source: RevenueBase Database · checked Sep 21, 2026
10	Cohen Seglias	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	51-200	153 contacts →
	Indirect evidence “At Cohen Seglias, strong foundations are built on integrity, decency, and hard work-qualities we bring to every deal we close, every dispute we resolve, every case we try, and…” Source: RevenueBase Database · checked Sep 21, 2026
11	Zarwin Baum	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	51-200	133 contacts →
	Indirect evidence “Zarwin Baum DeVito Kaplan Schaer, P.C.” Source: RevenueBase Database · checked Sep 21, 2026
12	Reger Rizzo & Darnall LLP	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	51-200	124 contacts →
	Indirect evidence “Reger Rizzo & Darnall LLP is a firm with a proven track record of success.” Source: RevenueBase Database · checked Sep 21, 2026
13	Spector Gadon Rosen Vinci P.C	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	51-200	102 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
14	Langsam Stevens Silver & Hollaender LLP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	11-50	21 contacts →
	Partial evidence “Langsam Stevens Silver & Hollaender LLP is a boutique law firm that has developed a client-driven and cost-effective philosophy to provide exceptional advice and legal counsel…” Source: RevenueBase Database · checked Sep 21, 2026
15	Fineman Krekstein & Harris	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	11-50	18 contacts →
	Partial evidence “For more than 30 years, the law firm of Fineman Krekstein & Harris P.C.” Source: RevenueBase Database · checked Sep 21, 2026
16	Leake Engineering LLC	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	11-50	11 contacts →
	Indirect evidence “Leake Engineering is a dynamic structural and civil engineering firm based in Philadelphia, PA, with a nationwide footprint.” Source: RevenueBase Database · checked Sep 21, 2026
17	Pritzker LAW Group	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	11-50	7 contacts →
	Indirect evidence “Pritzker Legal Group (“PLG”) was a natural response for increased engagement between Philadelphia’s private real estate sector and Philadelphia local government.” Source: RevenueBase Database · checked Sep 21, 2026
18	Weber Law, P.C	Partial evidence	Philadelphia, United StatesHQ checked Sep 21, 2026	1-10	7 contacts →
	Partial evidence “Whether you call it business law, corporate law, transactional law or contract law, Weber Law is focused on helping businesses succeed.” Source: RevenueBase Database · checked Sep 21, 2026
19	Charlson Braber Mccabe & Denmark	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	1-10	4 contacts →
	Indirect evidence “Charlson Braber McCabe & Denmark is the firm you've been looking for.” Source: RevenueBase Database · checked Sep 21, 2026
20	Weir Greenblatt Pierce LLP	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	11-50	4 contacts →
	Indirect evidence “Weir Greenblatt Pierce LLP is committed to achieving our clients’ objectives and finding practical solutions to complex legal problems.” Source: RevenueBase Database · checked Sep 21, 2026
21	Harborstone LAW	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	1-10	4 contacts →
	Partial evidence “Harborstone Law provides effective legal representation for businesses and individuals in the areas of business and corporate law, intellectual property, and debt and dispute…” Source: RevenueBase Database · checked Sep 21, 2026
22	Black & Gerngross, PC	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	11-50	3 contacts →
	Indirect evidence “BLACK & GERNGROSS, PC is a company based out of 1617 JOHN F.” Source: RevenueBase Database · checked Sep 21, 2026
23	Tantala Associates, LLC	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	11-50	1 contacts →
	Indirect evidence “TANTALA ASSOCIATES, LLC is a multi-disciplined, professional, consulting-engineering firm established in 1966.” Source: RevenueBase Database · checked Sep 21, 2026
24	Global Link LAW LLC	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “Global Link Law delivers strategic legal counsel to healthcare and health technology companies navigating regulatory complexity, commercial strategy, and global market entry.” Source: RevenueBase Database · checked Sep 21, 2026
25	Noble Lawyers, P.C	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “Commercial Law \| Construction Law \| Insurance Law \| Injury Law \| Litigation \| Dispute Resolution Noble Lawyers, P.C.” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: infrastructure law firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names infrastructure law firms.
Partial evidence: Its own public description names part of infrastructure law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure law firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 34 infrastructure law firms based in Philadelphia, United States

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Infrastructure law firms based in Philadelphia, United States at a glance

As of Sep 21, 2026

50.6%Verified-email coverage

296.3Average contacts per company

11-50Median size (employees)

488.2%Largest-city concentration · Houston

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Philadelphia, so it is reported there. Company counts and contact totals on this page are exact for Philadelphia, over 34 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 infrastructure law firms, 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 “infrastructure law firms”. 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 infrastructure law firms), 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 infrastructure law firms, 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, 5,096 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 21, 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.

Infrastructure law firms by metro in the United States

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 infrastructure law firms, 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 infrastructure law firms are there based in Philadelphia, United States?

RevenueBase identified 34 infrastructure law firms 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?

Dechert LLP, headquartered in Philadelphia, tops this list with the largest team on record.

Which city has the most infrastructure law firms?

Houston leads with 166 headquartered companies, followed by New York (162) and Washington (134).

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 5,096 verified decision-maker contacts tracked across these 34 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 21, 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.