Company lists · Data refreshed September 2026

Top 17 College prep organizations based in Philadelphia, United States

Name: College prep organizations based in Philadelphia, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 49 companies tracked

RevenueBase identified 49 company matches for college prep organizations associated with Philadelphia, United States as of September 2026 and tracks 1,058 professional contacts across them, including 359 with verified work emails. Across the United States, New York is the largest hub for this category (291 companies); Philadelphia has 49.

This list covers company matches for college prep organizations associated with Philadelphia, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 19, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 19, 2026 How this list was built

49Companies

1,058Contacts tracked

359Verified emails

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The 17 largest college prep organizations based in Philadelphia, United States

Ranked by team size

Top 17 of 49 company matches for college prep organizations based in Philadelphia, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Freire Schools	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 19, 2026	51-200	143 contacts →
	Exact match “Since Freire Schools has been a catalyst for unlocking the potential of some of Philadelphia and Wilmington’s most underserved youth.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	Friends Select School	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 19, 2026	51-200	138 contacts →
	Exact match “Friends Select School is a coed, college preparatory, Quaker day school serving 639 students in grades pre-k through 12.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	The City School	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 19, 2026	51-200	110 contacts →
	Exact match “The City School's mission is to train students’ minds, disciple their hearts and bring light to the city-one child at a time.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	St. Joseph's Prep	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 19, 2026	51-200	106 contacts →
	Exact match “St.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Scoir, INC	Exact match	Philadelphia, United StatesHQ recorded Sep 19, 2026	51-200	64 contacts →
	Exact match “Scoir is a Network connecting students, supporters, high schools, and colleges to expand college and career access and improve student outcomes.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Philadelphia Education Fund	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 19, 2026	11-50	63 contacts →
	Exact match “Founded in 1985, PEF is a comprehensive provider of college and career advising services – serving students attending 6 of the City’s lowest graduation-rate high schools…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	Boys' Latin Of Philadelphia	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 19, 2026	51-200	61 contacts →
	Exact match “Boys’ Latin of Philadelphia first opened its doors in West Philadelphia in 2007, offering an innovative value proposition: to provide a world-class college preparatory academic…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Archbishop Ryan High School	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 19, 2026	51-200	56 contacts →
	Exact match “Archbishop Ryan High School, an Archdiocese of Philadelphia coeducational school located in Northeast Philadelphia, is committed to empowering students to become contributing…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Teach LLC	Exact match	Philadelphia, United StatesHQ recorded Sep 19, 2026	11-50	32 contacts →
	Exact match “We are a unique teaching collaborative leading the industry in providing exceptional tutoring services to students of all ages.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	Freire Charter School	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 19, 2026	201-500	18 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Franklin Yard	Exact match	Philadelphia, United StatesHQ recorded Sep 19, 2026	11-50	15 contacts →
	Exact match “Franklin Yard partners with families, school college counseling departments, and independent educational consultants to deliver deeply personalized SAT and ACT instruction that…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Mastery CS	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 19, 2026	1-10	9 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Maritime Charter High School	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 19, 2026	11-50	6 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Philadelphia High School	Exact match	Philadelphia, MS, United StatesHQ recorded Sep 19, 2026	1-10	5 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Rocket Prep	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 19, 2026	1-10	4 contacts →
	Exact match “You can do more than achieve a better score or GPA.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Carver Hses	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 19, 2026	51-200	2 contacts →
	Exact match “G.W.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Hollenback Consulting LLC	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 19, 2026	1-10	1 contacts →
	Exact match “Hollenback Consulting LLC partners with families to help teens and young adults navigate to-and-through college, from high school to successful career.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “college prep organizations”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 17 of 49 college prep organizations based in Philadelphia, United States

See the full list, filter by size, metro and specialty, and access 359 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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College prep organizations based in Philadelphia, United States at a glance

As of Sep 19, 2026

33.9%Verified-email coverage

21.6Average contacts per company

11-50Median size (employees)

Sep 19, 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 49 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Philadelphia, United States whose business descriptions match “college prep organizations” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 359 professional contacts with verified work emails across the full matched dataset. 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 19, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

College prep organizations by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “college prep organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many college prep organizations are there based in Philadelphia, United States?

RevenueBase identified 49 company matches for college prep organizations associated with Philadelphia, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Freire Schools tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most college prep organizations?

New York leads the United States with 291 company records, followed by Los Angeles (144) and Chicago (115). Philadelphia has 49.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 359 professional contacts with verified work emails tracked across these 49 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 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 SmartSearch, 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.