Company lists · Data refreshed September 2026

Top 25 Multifamily residential design companies based in Philadelphia, United States

Name: Multifamily residential design companies based in Philadelphia, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 89 companies tracked

RevenueBase identified 89 multifamily residential design companies headquartered in Philadelphia, United States as of September 2026 and tracks 833 professional contacts across them, including 400 with verified work emails. New York is the largest hub.

This list covers multifamily residential design companies 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 20, 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 20, 2026 86% judged on-target in blind review

89Companies

833Contacts tracked

400Verified emails

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The 25 largest multifamily residential design companies based in Philadelphia, United States

Ranked by team size

Top 25 of 89 multifamily residential design companies based in Philadelphia, United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to multifamily residential design companies: 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	Post Brothers	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	51-200	166 contacts →
	Indirect evidence “Post Brothers was founded in 2006 by Matthew and Michael Pestronk to exclusively focus on creating and operating infill, class-A, “best-in-class” apartment buildings at a superior…” Source: RevenueBase Database · checked Sep 20, 2026
2	Kierantimberlake	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	51-200	74 contacts →
	Indirect evidence “The alchemy of art, science, analysis, and intuition with regard to the built environment is our core mission.” Source: RevenueBase Database · checked Sep 20, 2026
3	Jkrp Architects	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	51-200	70 contacts →
	Partial evidence “Residential \| Entertainment \| Retail \| Self Storage JKRP Architects is a full-service architectural firm dedicated to bringing client visions to life.” Source: RevenueBase Database · checked Sep 20, 2026
4	GY Properties	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	51-200	66 contacts →
	Indirect evidence “GY Properties is a U.S.” Source: RevenueBase Database · checked Sep 20, 2026
5	Digsau	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	11-50	41 contacts →
	Partial evidence “DIGSAU practices contemporary architecture, urbanism and environmental design.” Source: RevenueBase Database · checked Sep 20, 2026
6	Cosciamoos Architecture	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	11-50	32 contacts →
	Partial evidence “CosciaMoos Architecture, founded by principals Sergio Coscia and David Moos, provides architectural design and planning across a broad range of project types, serving clients…” Source: RevenueBase Database · checked Sep 20, 2026
7	Reinhold Residential	Partial evidence	Philadelphia, United StatesHQ checked Sep 20, 2026	51-200	29 contacts →
	Partial evidence “The city’s best architectural secrets are transformed into sleek modern residences through Reinhold Residential, an owner, developer, and manager of luxury apartments for rent in…” Source: RevenueBase Database · checked Sep 20, 2026
8	MJ Settelen Construction, LLC	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	11-50	24 contacts →
	Partial evidence “MJ Settelen Construction is a Philadelphia-based firm providing General Contracting, Construction Management, Design-Build, Preconstruction, Consulting, and Facilities Services.” Source: RevenueBase Database · checked Sep 20, 2026
9	Wulff Architects	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	11-50	23 contacts →
	Partial evidence “Named after its founder and President, Al Wulff, Wulff Architects was envisioned in 1992 as a community of architects and designers working together to advance both commercial…” Source: RevenueBase Database · checked Sep 20, 2026
10	Innova Services Corporation	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	11-50	23 contacts →
	Indirect evidence “Innova brings more than 20 years of experience in the multi-family industry to bear in order to assist developers in all phases of development: resource efficiency…” Source: RevenueBase Database · checked Sep 20, 2026
11	DAS Architects, INC	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	11-50	23 contacts →
	Strong evidence “DAS Architects, one of the country’s top design firms, has developed an exceptional resume of hospitality, retail, corporate and residential projects.” Source: RevenueBase Database · checked Sep 20, 2026
12	Charles Matsinger Associates	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 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 20, 2026
13	Harman Deutsch Ohler Architecture	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	11-50	11 contacts →
	Partial evidence “harman deutsch ohler architecture is a service-oriented architecture and design firm rooted in development, catering to property investors, builders and developers.” Source: RevenueBase Database · checked Sep 20, 2026
14	Atrium Design Group	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	1-10	11 contacts →
	Partial evidence “Atrium Design Group is an architecture & planning company based out of 8404 Donnybrook Dr, Chevy Chase, Maryland, United States.” Source: RevenueBase Database · checked Sep 20, 2026
15	Varenhorst	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “Varenhorst is an award-winning architectural firm based out of Philadelphia, Pennsylvania.” Source: RevenueBase Database · checked Sep 20, 2026
16	Toner Architects	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	1-10	8 contacts →
	Partial evidence “Toner architects was founded with one singular goal in mind; collaborate with clients who enjoy the process of design, architecture, and building.” Source: RevenueBase Database · checked Sep 20, 2026
17	Brawer Hauptman Larkin Architects	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	1-10	8 contacts →
	Partial evidence “Brawer Hauptman + Larkin Architects is an architecture, planning and interior design firm located in Philadelphia.” Source: RevenueBase Database · checked Sep 20, 2026
18	Gnome Architects LLC	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	1-10	8 contacts →
	Strong evidence “As designers rooted in residential architecture, the word home can mean many different things.” Source: RevenueBase Database · checked Sep 20, 2026
19	Krieger Associates Architects INC	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	1-10	8 contacts →
	Strong 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 20, 2026
20	Shophouse	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	1-10	7 contacts →
	Partial evidence “SHOPHOUSE interior architecture + design is a nationally recognized Philadelphia based boutique design firm founded in 2011.” Source: RevenueBase Database · checked Sep 20, 2026
21	Studio Agoos Lovera	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “Firm History Studio Agoos Lovera began when founding partners Jorge Lovera and Ted Agoos established Agoos/Lovera Architects (A/LA) in September 1983, after several years of…” Source: RevenueBase Database · checked Sep 20, 2026
22	K Yoder Design	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	1-10	5 contacts →
	Partial 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 20, 2026
23	Millan Architects	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	1-10	4 contacts →
	Indirect evidence “Millan Architects is an architecture firm based in Philadelphia devoted to crafting thoughtful spaces of enduring beauty, lasting value and environmental sustainability.” Source: RevenueBase Database · checked Sep 20, 2026
24	Realen Properties	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	11-50	4 contacts →
	Partial evidence “Realen was founded in 1968 initially as a developer of multi-family residential apartments.” Source: RevenueBase Database · checked Sep 20, 2026
25	Kass & Associates	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 20, 2026	1-10	4 contacts →
	Partial evidence “Kass & Associates is an architecture and design firm based in Philadelphia.” Source: RevenueBase Database · checked Sep 20, 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: multifamily residential design companies. 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 multifamily residential design companies.
Partial evidence: Its own public description names part of multifamily residential design companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name multifamily residential design companies. 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 89 multifamily residential design companies based in Philadelphia, United States

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Multifamily residential design companies based in Philadelphia, United States at a glance

As of Sep 20, 2026

48.0%Verified-email coverage

9.4Average contacts per company

1-10Median size (employees)

686.5%Largest-city concentration · New York

Sep 20, 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 89 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 multifamily residential design companies, 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 “multifamily residential design companies”. 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 multifamily residential design companies), 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 multifamily residential design companies, 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, 400 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 20, 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.

Multifamily residential design companies 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 multifamily residential design companies, 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 multifamily residential design companies are there based in Philadelphia, United States?

RevenueBase identified 89 multifamily residential design companies 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?

Post Brothers, headquartered in Philadelphia, tops this list with the largest team on record.

Which city has the most multifamily residential design companies?

New York leads with 611 headquartered companies, followed by Los Angeles (342) and Houston (260).

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 400 verified decision-maker contacts tracked across these 89 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 20, 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.