Company lists · Data refreshed September 2026

Top 23 Trust administration law firms based in Philadelphia, United States

Name: Trust administration 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 29, 2026 45 companies tracked

RevenueBase identified 45 trust administration law firms headquartered in Philadelphia, United States as of September 2026 and tracks 1,380 professional contacts across them, including 616 with verified work emails. Across the United States, New York is the largest hub for this category (294 companies); Philadelphia has 45.

This list covers trust administration 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 29, 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 29, 2026 86% judged on-target in blind review

45Companies

1,380Contacts tracked

616Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 23 largest trust administration law firms based in Philadelphia, United States

Ranked by team size

Top 23 of 45 trust administration law firms based in Philadelphia, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to trust administration 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	Klehr Harrison Harvey Branzburg LLP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 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 29, 2026
2	Cohen Seglias	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 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 29, 2026
3	Hangley Aronchick Segal Pudlin & Schiller	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	51-200	102 contacts →
	Indirect evidence “When our firm was founded in 1994, our idea was to build a firm of lawyers with superior academic credentials and professional capabilities who wanted to develop their practices…” Source: RevenueBase Database · checked Sep 29, 2026
4	Kleinbard LLC	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	11-50	65 contacts →
	Indirect evidence “For over 75 years, Kleinbard attorneys have served as trusted advisors and advocates for clients to help them achieve their goals.” Source: RevenueBase Database · checked Sep 29, 2026
5	Petrelli Previtera, LLC	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	11-50	48 contacts →
	Strong evidence “Petrelli Previtera, LLC is a family law firm that knows the only way to bring about fair and just solutions for our clients is by building trust.” Source: RevenueBase Database · checked Sep 29, 2026
6	Kang Haggerty	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	11-50	28 contacts →
	Indirect evidence “Focused solely on business litigation and counseling, the lawyers of Kang Haggerty have reputations for excellence earned through years of experience in trial and appellate court.” Source: RevenueBase Database · checked Sep 29, 2026
7	Fineman Krekstein & Harris	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 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 29, 2026
8	Klenk LAW	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	1-10	13 contacts →
	Strong evidence “Klenk Law focuses in trusts, wills, estate planning, probate, will challenges and will contests, with offices in Philadelphia, Bucks County, Allentown, New York and New Jersey.” Source: RevenueBase Database · checked Sep 29, 2026
9	Commons & Commons LLP	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	11-50	12 contacts →
	Indirect evidence “Founded in 1973, Commons & Commons LLP provides legal counsel to individuals, families, fiduciaries, businesses, independent schools, executives, heads of school, and nonprofit…” Source: RevenueBase Database · checked Sep 29, 2026
10	Nochumson P.C	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	1-10	9 contacts →
	Indirect evidence “At Nochumson P.C, we are not just legal counsel, we are real people serving our communities.” Source: RevenueBase Database · checked Sep 29, 2026
11	Mitchell Sinkler & Starr	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	1-10	9 contacts →
	Partial evidence “Independent Investment Advisor Since 1969 Mitchell Sinkler & Starr serves individuals and families, trusts and estates, and foundations and nonprofits, with clients in more than…” Source: RevenueBase Database · checked Sep 29, 2026
12	Alexander & Pelli, LLC	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	1-10	8 contacts →
	Strong evidence “Alexander & Pelli, LLC is a probate, trust, and estate planning law firm of experienced and respected practitioners who deliver client-centered services in Pennsylvania, New…” Source: RevenueBase Database · checked Sep 29, 2026
13	Harty LAW Group, Pllc	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	1-10	7 contacts →
	Indirect evidence “We serve medium to small-sized businesses who need responsive, flexible and practice legal solutions.” Source: RevenueBase Database · checked Sep 29, 2026
14	Kenny, Burns & Mcgill	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	1-10	7 contacts →
	Strong evidence “Kenny, Burns & McGill is a law firm built on trust, experience, and results.” Source: RevenueBase Database · checked Sep 29, 2026
15	Mccarthy Weidler P.C	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	1-10	6 contacts →
	Indirect evidence “The team at McCarthy Weidler is committed to providing specialized counsel and delivering results, while protecting the best interests of our clients.” Source: RevenueBase Database · checked Sep 29, 2026
16	Weir Greenblatt Pierce LLP	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 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 29, 2026
17	Gekoski & Bogdanoff, PC	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	1-10	4 contacts →
	Partial evidence “Gekoski & Bogdanoff is an accomplished law firm that has been serving its clients for over sixty years.” Source: RevenueBase Database · checked Sep 29, 2026
18	Doolittle Williams LLP	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	1-10	3 contacts →
	Strong evidence “We are a boutique trusts and estates law firm specializing in estate planning, trust and estate administration, business succession planning, and charitable gift planning.” Source: RevenueBase Database · checked Sep 29, 2026
19	The LAW Offices Of Black & Older	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	11-50	3 contacts →
	Indirect evidence “In an age where insurance companies, large corporations, government regulators, and lawmakers seem to have all the power, justice can seem like a scarce commodity.” Source: RevenueBase Database · checked Sep 29, 2026
20	Jared Jacobson Law, LLC	Indirect evidence	Philadelphia, United StatesHQ checked Sep 29, 2026	1-10	2 contacts →
	Indirect evidence “Representing and counseling individuals, investors, entrepreneurs and entities of various sizes across Pennsylvania, New York and New Jersey.” Source: RevenueBase Database · checked Sep 29, 2026
21	Carmody Siegel LLC	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	1-10	2 contacts →
	Partial evidence “Heather Carmody and Ellie Siegel formed Carmody Siegel LLC to assist businesses and individuals with matters of general corporate law, mergers and acquisitions and the private…” Source: RevenueBase Database · checked Sep 29, 2026
22	Gilboy & Gilboy LLP	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	1-10	1 contacts →
	Strong evidence “Gilboy & Gilboy LLP offers highly specialized estate and tax planning, trust and estate administration, and associated services in a small, personalized atmosphere.” Source: RevenueBase Database · checked Sep 29, 2026
23	Tadross LAW	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	1-10	1 contacts →
	Indirect evidence “TadrossLaw was founded with the goal of helping our clients with their legal needs, whether they be litigation or transactional issues.” Source: RevenueBase Database · checked Sep 29, 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: trust administration 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 trust administration law firms.
Partial evidence: Its own public description names part of trust administration law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name trust administration 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 23 of 45 trust administration law firms based in Philadelphia, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 616 reachable decision-makers.

Free signup · no credit card

View the full list →

Trust administration law firms based in Philadelphia, United States at a glance

As of Sep 29, 2026

44.6%Verified-email coverage

30.7Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 45 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 trust administration 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 “trust administration 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 trust administration 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 trust administration 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, 616 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 29, 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.

Trust administration 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 trust administration 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 trust administration law firms are there based in Philadelphia, United States?

RevenueBase identified 45 trust administration 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?

Klehr Harrison Harvey Branzburg LLP, headquartered in Philadelphia, tops this list with the largest team on record.

Which city in the United States has the most trust administration law firms?

New York leads the United States with 294 headquartered companies, followed by Houston (183) and Chicago (182). Philadelphia has 45.

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 616 verified decision-maker contacts tracked across these 45 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 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 45 trust administration law firms based in Philadelphia, United States. Start with a free account, no credit card.

Download this list →

Related lists

Trust administration law firms by geography

Browse the directory

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.