Company lists · Data refreshed September 2026

Top 25 Apartment building investment companies based in Philadelphia, United States

Name: Apartment building investment 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 30, 2026 183 companies tracked

RevenueBase identified 183 apartment building investment companies headquartered in Philadelphia, United States as of September 2026 and tracks 3,681 professional contacts across them, including 1,499 with verified work emails. Across the United States, New York is the largest hub for this category (1,236 companies); Philadelphia has 183.

This list covers apartment building investment 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 30, 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 30, 2026 86% judged on-target in blind review

183Companies

3,681Contacts tracked

1,499Verified emails

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The 25 largest apartment building investment companies based in Philadelphia, United States

Ranked by team size

Top 25 of 183 apartment building investment companies based in Philadelphia, United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to apartment building investment 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	Brandywine Realty Trust	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	201-500	418 contacts →
	Indirect evidence “Our purpose is to shape, connect and inspire the world around us through our expertise, the relationships we foster, the communities in which we live and work, and the history we…” Source: RevenueBase Database · checked Sep 30, 2026
2	Goldoller Real Estate Investments	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	501-1,000	325 contacts →
	Partial evidence “At GoldOller Real Estate Investments, we recognize that each interaction with our clients, employees, and residents is an investment in a valuable relationship.” Source: RevenueBase Database · checked Sep 30, 2026
3	Pennrose	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	201-500	323 contacts →
	Indirect evidence “For over 50 years, Pennrose has combined quality development and proven management to create great lifestyles for our residents.” Source: RevenueBase Database · checked Sep 30, 2026
4	Independence Realty Trust INC	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	501-1,000	280 contacts →
	Strong evidence “Independence Realty Trust ("IRT")(NYSE MKT: IRT) is a publicly traded real estate investment trust (REIT) which owns and manages communities containing more than apartment homes…” Source: RevenueBase Database · checked Sep 30, 2026
5	PRG Real Estate	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	201-500	247 contacts →
	Indirect evidence “PRG Real Estate was founded by Jon Goodman and Steven Berger in 1985 to purchase and operate multifamily communities nationwide.” Source: RevenueBase Database · checked Sep 30, 2026
6	Aion Management	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	201-500	211 contacts →
	Partial evidence “AION Management is one of the fastest-growing property management companies in the Mid-Atlantic, overseeing more than apartment homes across the region.” Source: RevenueBase Database · checked Sep 30, 2026
7	PMC Property Group, INC	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	201-500	196 contacts →
	Indirect evidence “Philadelphia-based PMC Property Group is a vertically integrated real estate development company focusing on the new construction, renovation, adaptive reuse, and conversion of…” Source: RevenueBase Database · checked Sep 30, 2026
8	Post Brothers	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	51-200	166 contacts →
	Strong 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 30, 2026
9	Alterra Property Group	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	51-200	88 contacts →
	Partial evidence “Alterra Property Group, LLC (“Alterra”) is an established real estate investment, development, and management company based in Philadelphia, PA.” Source: RevenueBase Database · checked Sep 30, 2026
10	Rubenstein Partners	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	51-200	70 contacts →
	Partial evidence “Rubenstein Partners is the fund manager for a series of private equity funds focused on office investments throughout the United States.” Source: RevenueBase Database · checked Sep 30, 2026
11	GY Properties	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	51-200	66 contacts →
	Indirect evidence “GY Properties is a U.S.” Source: RevenueBase Database · checked Sep 30, 2026
12	Lubert Adler Partners	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	11-50	40 contacts →
	Strong evidence “Lubert-Adler, with offices in Philadelphia, New York, and Atlanta, is an institutional real estate investment manager focused on building a diversified portfolio of cash-flowing…” Source: RevenueBase Database · checked Sep 30, 2026
13	LEM Capital	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	11-50	40 contacts →
	Partial evidence “LEM Capital is a real estate private equity firm with a 23-year track record focused on protecting investor downside and building portfolios designed to deliver dependable current…” Source: RevenueBase Database · checked Sep 30, 2026
14	TCS Management Services	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	51-200	40 contacts →
	Partial evidence “TCS Management Services is a full-service property management firm specializing in investor-owned single-family homes, condos, and apartments.” Source: RevenueBase Database · checked Sep 30, 2026
15	GNR Group	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	51-200	37 contacts →
	Partial evidence “GNR Group is a real estate investment firm comprised of specialized companies operating across the East Coast, with a core focus on the Single-Family Rental (SFR) sector and…” Source: RevenueBase Database · checked Sep 30, 2026
16	Arden Group	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	11-50	31 contacts →
	Indirect evidence “Arden Group is a privately held, vertically-integrated real estate fund manager, investor, and operator that owns and finances properties across the United States.” Source: RevenueBase Database · checked Sep 30, 2026
17	Switzenbaum & Associates	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	51-200	30 contacts →
	Strong evidence “Switzenbaum & Associates is a vertically integrated real estate investment, development and management company with an emphasis today on investing in multi-family apartments.” Source: RevenueBase Database · checked Sep 30, 2026
18	Reinhold Residential	Partial evidence	Philadelphia, United StatesHQ checked Sep 30, 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 30, 2026
19	Woodward Properties, INC	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	51-200	26 contacts →
	Partial evidence “At Woodward Properties it is our team's mission to exercise the highest levels of pride, integrity and passion, while providing quality apartment homes in well maintained…” Source: RevenueBase Database · checked Sep 30, 2026
20	Pearl Properties Commercial Management LLC	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	11-50	26 contacts →
	Partial evidence “Pearl Properties, Philadelphia’s premier full-service real estate investment and development firm, is engaged in the acquisition, development and management of core-plus mixed-use…” Source: RevenueBase Database · checked Sep 30, 2026
21	MPN Realty	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	11-50	25 contacts →
	Indirect evidence “MPN Realty's services are built on two simple, but essential pillars: We will always place our clients’ interests first and we will deliver superior results.” Source: RevenueBase Database · checked Sep 30, 2026
22	Stamm Development Group	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	11-50	22 contacts →
	Indirect evidence “Stamm Development Group (“SDG”) is one of Philadelphia and South Florida's leading private real estate development firms.” Source: RevenueBase Database · checked Sep 30, 2026
23	Alliance HP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	11-50	20 contacts →
	Partial evidence “Alliance Partners HP, LLC (“Alliance”) is a private real estate investment and operating company focused on opportunistic and core plus investments in commercial properties…” Source: RevenueBase Database · checked Sep 30, 2026
24	AMC Delancey Group, INC	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	11-50	20 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
25	Greenzang Properties	Indirect evidence	Philadelphia, PA, United StatesHQ checked Sep 30, 2026	11-50	17 contacts →
	Indirect evidence “Family owned real estate business, founded in 1994 by Michael Greenzang.” Source: RevenueBase Database · checked Sep 30, 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: apartment building investment 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 apartment building investment companies.
Partial evidence: Its own public description names part of apartment building investment companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name apartment building investment 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 183 apartment building investment companies based in Philadelphia, United States

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Apartment building investment companies based in Philadelphia, United States at a glance

As of Sep 30, 2026

40.7%Verified-email coverage

20.1Average contacts per company

1-10Median size (employees)

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

110

11-50

51-200

201-500

501-1,000

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 183 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 apartment building investment 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 “apartment building investment 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 apartment building investment 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 apartment building investment 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, 1,499 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 30, 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.

Apartment building investment 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 apartment building investment 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 apartment building investment companies are there based in Philadelphia, United States?

RevenueBase identified 183 apartment building investment 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?

Brandywine Realty Trust, headquartered in Philadelphia, tops this list with the largest team on record.

Which city in the United States has the most apartment building investment companies?

New York leads the United States with 1,236 headquartered companies, followed by Los Angeles (599) and Chicago (517). Philadelphia has 183.

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 1,499 verified decision-maker contacts tracked across these 183 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 30, 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.