Company lists · Data refreshed September 2026

Top 25 Law firm office designers based in Philadelphia, United States

Name: Law firm office designers based in Philadelphia, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 60 companies tracked

RevenueBase identified 60 law firm office designers headquartered in Philadelphia, United States as of September 2026 and tracks 6,074 professional contacts across them, including 2,302 with verified work emails. Across the United States, New York is the largest hub for this category (605 companies); Philadelphia has 60.

This list covers law firm office designers 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 28, 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 28, 2026 86% judged on-target in blind review

60Companies

6,074Contacts tracked

2,302Verified emails

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The 25 largest law firm office designers based in Philadelphia, United States

Ranked by team size

Top 25 of 60 law firm office designers based in Philadelphia, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to law firm office designers: 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	Duane Morris LLP	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,843 contacts →
	Strong evidence “Duane Morris LLP, a law firm with more than 900 attorneys in offices across the United States and internationally, is asked by a broad array of clients to provide innovative…” Source: RevenueBase Database · checked Sep 28, 2026
2	White And Williams LLP	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	201-500	416 contacts →
	Strong 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 28, 2026
3	Post & Schell, P.C	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 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 28, 2026
4	Weber Gallagher	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	201-500	264 contacts →
	Indirect evidence “With more than 160 legal professionals, Weber Gallagher provides counsel to local, national and international businesses, insurance companies and financial institutions in…” Source: RevenueBase Database · checked Sep 28, 2026
5	Cohen Seglias	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 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 28, 2026
6	Zarwin Baum	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	51-200	133 contacts →
	Indirect evidence “Zarwin Baum DeVito Kaplan Schaer, P.C.” Source: RevenueBase Database · checked Sep 28, 2026
7	Hangley Aronchick Segal Pudlin & Schiller	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 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 28, 2026
8	Kleinbard LLC	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 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 28, 2026
9	Mccormick & Priore, P.C	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	48 contacts →
	Indirect evidence “Every firm has a prevailing ethos that drives its relationships and determines its success.” Source: RevenueBase Database · checked Sep 28, 2026
10	IEI Group, LTD	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	33 contacts →
	Indirect evidence “IEI is a nationally recognized, award-winning, 20-person architecture, interior design and facilities planning firm based in Northern Liberties for last 20 years.” Source: RevenueBase Database · checked Sep 28, 2026
11	Astor Weiss Kaplan & Mandel, LLP	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	24 contacts →
	Indirect evidence “ABOUT THE FIRM Astor Weiss Kaplan & Mandel, LLP offers a broad range of expert legal services to its clients by providing high-quality representation.” Source: RevenueBase Database · checked Sep 28, 2026
12	Hellyer Lewis Smith, INC	Indirect evidence	Philadelphia, United StatesHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “Hellyer Lewis Smith, Inc, is an architectural and interior design firm that has been serving the corporate community since its inception in 1984.” Source: RevenueBase Database · checked Sep 28, 2026
13	Charles Matsinger Associates	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	13 contacts →
	Indirect evidence “We are "The No-Attitude Architects,” a full service architectural firm committed to providing innovative architecture that enhances our clients’ quality of life where they live…” Source: RevenueBase Database · checked Sep 28, 2026
14	Sidkoff, Pincus & Green, P.C	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	13 contacts →
	Partial evidence “Sidkoff, Pincus & Green ("SPG") is not your average law firm.” Source: RevenueBase Database · checked Sep 28, 2026
15	Varenhorst	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	10 contacts →
	Indirect evidence “Varenhorst is an award-winning architectural firm based out of Philadelphia, Pennsylvania.” Source: RevenueBase Database · checked Sep 28, 2026
16	Nochumson P.C	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 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 28, 2026
17	Krieger Associates Architects INC	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	1-10	8 contacts →
	Indirect evidence “Krieger + Associates Architects Inc is an award-winning Philadelphia firm providing architectural, planning, and interior design services to residential, institutional, and…” Source: RevenueBase Database · checked Sep 28, 2026
18	Rittenhouse Law, LLC	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	1-10	7 contacts →
	Partial evidence “A boutique law firm dedicated to real estate and financing transactions.” Source: RevenueBase Database · checked Sep 28, 2026
19	Glenna Stone Interiors	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	7 contacts →
	Indirect evidence “Based in Philadelphia, we are an award-winning interior design firm with luxury residential and commercial clients nationwide.” Source: RevenueBase Database · checked Sep 28, 2026
20	Shophouse	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	1-10	7 contacts →
	Indirect evidence “SHOPHOUSE interior architecture + design is a nationally recognized Philadelphia based boutique design firm founded in 2011.” Source: RevenueBase Database · checked Sep 28, 2026
21	CI Solutions, LLC	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	1-10	7 contacts →
	Indirect evidence “Since 2009, CI Solutions has been servicing clients as a full service boutique commercial interiors firm from their headquarters in the Philadelphia metropolitan region.” Source: RevenueBase Database · checked Sep 28, 2026
22	Marguerite Rodgers Interior Design	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	5 contacts →
	Partial evidence “Open the door to the offices of Marguerite Rodgers and chances are you’ll be greeted by a cat; you’ll also likely hear laughter.” Source: RevenueBase Database · checked Sep 28, 2026
23	K Yoder Design	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “Since 2010, k YODER design has evolved into a leading architecture and interiors firm for clients seeking a classic modern aesthetic and cohesion across design, furniture, décor…” Source: RevenueBase Database · checked Sep 28, 2026
24	Gekoski & Bogdanoff, PC	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 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 28, 2026
25	Bazelon Less & Feldman, P.C	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	3 contacts →
	Indirect evidence “Founded in 1983, Bazelon Less & Feldman was born of a belief that most commercial litigation matters could best be handled by a small group of highly talented and experienced…” Source: RevenueBase Database · checked Sep 28, 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: law firm office designers. 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 law firm office designers.
Partial evidence: Its own public description names part of law firm office designers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name law firm office designers. 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 60 law firm office designers based in Philadelphia, United States

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Law firm office designers based in Philadelphia, United States at a glance

As of Sep 28, 2026

37.9%Verified-email coverage

101.2Average contacts per company

1-10Median size (employees)

Sep 28, 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 60 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 law firm office designers, 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 “law firm office designers”. 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 law firm office designers), 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 law firm office designers, 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, 2,302 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 28, 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.

Law firm office designers 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 law firm office designers, 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 law firm office designers are there based in Philadelphia, United States?

RevenueBase identified 60 law firm office designers 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?

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

Which city in the United States has the most law firm office designers?

New York leads the United States with 605 headquartered companies, followed by Los Angeles (265) and Chicago (253). Philadelphia has 60.

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 2,302 verified decision-maker contacts tracked across these 60 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 28, 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.