Company lists · Data refreshed September 2026
Top 22 Independent high schools based in Philadelphia, United States
RevenueBase identified 38 company matches for independent high schools associated with Philadelphia, United States as of September 2026 and tracks 2,717 professional contacts across them, including 1,404 with verified work emails. Across the United States, New York is the largest hub for this category (105 companies); Philadelphia has 38.
This list covers company matches for independent high schools 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 20, 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.
The 22 largest independent high schools based in Philadelphia, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,031 contacts → | ||||
Exact match “Mastery Charter Schools and Mastery Schools of Camden form a non-profit school network of charter, turnaround and renaissance schools in Philadelphia, PA and Camden, NJ, serving…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 248 contacts → | ||||
Exact match “KIPP Philadelphia Public Schools is a network of nine free public charter schools that opened its doors in 2003.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 159 contacts → | ||||
Exact match “Girard College is an independent boarding school serving grades 1-12 in Philadelphia, PA.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 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 20, 2026 · View company records in RevenueBase | |||||
| 5 | 119 contacts → | ||||
Exact match “String Theory Schools is a premier education management organization committed to empowering students with the skills and knowledge to excel in all aspects of life.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 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 20, 2026 · View company records in RevenueBase | |||||
| 7 | 101 contacts → | ||||
Exact match “YouthBuild Philadelphia Charter School is a 501(c)(3) organization with over 30 years of experience helping young people rebuild their lives.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 87 contacts → | ||||
Exact match “The Philadelphia School is a coeducational, nonsectarian independent school educating children from preschool through eighth grade.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 70 contacts → | ||||
Exact match “Our Mission: Franklin Towne Charter High School allows students to pursue pathways of learning which are respective to their personal interests, from the humanities to STEM, in an…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 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 20, 2026 · View company records in RevenueBase | |||||
| 11 | 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 20, 2026 · View company records in RevenueBase | |||||
| 12 | 46 contacts → | ||||
Exact match “The mission of Cornerstone Christian Academy is to educate children, including those from at‑risk neighborhoods, in an environment that provides the highest standards for academic…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 33 contacts → | ||||
Exact match “Scholar Academies transforms low-performing schools so every child has the knowledge and character to pursue the path to college and opportunities beyond.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 28 contacts → | ||||
Exact match “Liguori Academy is a private, non-profit high school committed to serving the community.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 24 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 21 contacts → | ||||
Exact match “The Aspen Grove School is a company based out of 1600 Christian St, Philadelphia, Pennsylvania, United States.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 20 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 18 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 10 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 8 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 2 contacts → | ||||
Exact match “The Mill Creek School at PHMC is a secondary educational program offering a comprehensive academic curriculum for high school students.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 2 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 20, 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 “independent high schools”. 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 22 of 38 independent high schools based in Philadelphia, United States
See the full list, filter by size, metro and specialty, and access 1,404 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Independent high schools based in Philadelphia, United States at a glance
As of Sep 20, 2026Companies by employee count
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 38 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 “independent high schools” 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 1,404 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 20, 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.
Independent high schools by metro in the United States
- Independent high schools in New York105
- Independent high schools in Houston88
- Independent high schools in Los Angeles66
- Independent high schools in Chicago63
- Independent high schools in Phoenix52
- Independent high schools in Miami45
- Independent high schools in Bronx41
- Independent high schools in Dallas41
- Independent high schools in Orlando38
- Independent high schools in Jacksonville34
- Independent high schools in Indianapolis31
- Independent high schools in Washington31
- Independent high schools in Memphis30
- Independent high schools in Richmond30
- Independent high schools in San Francisco30
- Independent high schools in San Antonio29
- Independent high schools in Tucson26
- Independent high schools in Austin25
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 “independent high schools”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many independent high schools are there based in Philadelphia, United States?
RevenueBase identified 38 company matches for independent high schools 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?
Mastery 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 independent high schools?
New York leads the United States with 105 company records, followed by Houston (88) and Los Angeles (66). Philadelphia has 38.
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 1,404 professional contacts with verified work emails tracked across these 38 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 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 38 independent high schools based in Philadelphia, United States. Start with a free account, no credit card.
Download this list →Related lists
Independent high schools by geography
- Independent high schools based in Austin, United States
- Independent high schools based in Bronx, United States
- Independent high schools based in Chicago, United States
- Independent high schools based in Dallas, United States
- Independent high schools based in Houston, United States
- Independent high schools based in Indianapolis, United States
- Independent high schools based in Jacksonville, United States
- Independent high schools based in Los Angeles, United States
- Independent high schools based in Memphis, United States
- Independent high schools based in Miami, United States
- Independent high schools based in New York, United States
- Independent high schools based in Orlando, United States
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Independent high schools based in Austin, United States
- Independent high schools based in Bronx, United States
- Independent high schools based in Chicago, United States
- Independent high schools based in Dallas, United States
- Independent high schools based in Houston, United States
- Independent high schools based in Indianapolis, United States
Company intelligence · public preview
Top 22 independent high schools based in Philadelphia, United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 38 matching company records for independent high schools based in Philadelphia, United States, with 2,717 tracked contacts and 1,404 verified work emails.
This public preview shows 22 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 22 independent high schools based in Philadelphia, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Mastery Schoolsmasterycharter.orgHQ: Philadelphia, PA, United StatesReported employees: 1,001-5,000 | Philadelphia, PA, United States | 1,001-5,000 | Exact match | 1,031 contacts → |
“Mastery Charter Schools and Mastery Schools of Camden form a non-profit school network of charter, turnaround and renaissance schools in Philadelphia, PA and Camden, NJ, serving…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Kipp Philadelphia Public Schoolskippphiladelphia.orgHQ: Philadelphia, PA, United StatesReported employees: 201-500 | Philadelphia, PA, United States | 201-500 | Exact match | 248 contacts → |
“KIPP Philadelphia Public Schools is a network of nine free public charter schools that opened its doors in 2003.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Girard Collegegirardcollege.edu HQ: Philadelphia, PA, United StatesReported employees: 201-500 | Philadelphia, PA, United States | 201-500 | Exact match | 159 contacts → |
“Girard College is an independent boarding school serving grades 1-12 in Philadelphia, PA.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Freire Schoolsfreireschools.orgHQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 143 contacts → |
“Since Freire Schools has been a catalyst for unlocking the potential of some of Philadelphia and Wilmington’s most underserved youth.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  String Theory Schoolsstringtheoryschools.orgHQ: Philadelphia, PA, United StatesReported employees: 201-500 | Philadelphia, PA, United States | 201-500 | Exact match | 119 contacts → |
“String Theory Schools is a premier education management organization committed to empowering students with the skills and knowledge to excel in all aspects of life.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | The City Schoolcityschool.org HQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 110 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Youthbuild Philadelphia Charter Schoolyouthbuildphilly.orgHQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 101 contacts → |
“YouthBuild Philadelphia Charter School is a 501(c)(3) organization with over 30 years of experience helping young people rebuild their lives.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | The Philadelphia Schooltpschool.org HQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 87 contacts → |
“The Philadelphia School is a coeducational, nonsectarian independent school educating children from preschool through eighth grade.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Franklin Towne Charter High Schoolhs.franklintowne.org HQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 70 contacts → |
“Our Mission: Franklin Towne Charter High School allows students to pursue pathways of learning which are respective to their personal interests, from the humanities to STEM, in an…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Boys' Latin Of Philadelphiaboyslatin.org HQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 61 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Archbishop Ryan High Schoolarchbishopryan.com HQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 56 contacts → |
“Archbishop Ryan High School, an Archdiocese of Philadelphia coeducational school located in Northeast Philadelphia, is committed to empowering students to become contributing…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Cornerstone Christian Academycornerstonephiladelphia.com HQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 46 contacts → |
“The mission of Cornerstone Christian Academy is to educate children, including those from at‑risk neighborhoods, in an environment that provides the highest standards for academic…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Scholar Academiesscholaracademies.orgHQ: Philadelphia, PA, United StatesReported employees: 501-1,000 | Philadelphia, PA, United States | 501-1,000 | Exact match | 33 contacts → |
“Scholar Academies transforms low-performing schools so every child has the knowledge and character to pursue the path to college and opportunities beyond.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Liguori Academyliguoriacademy.org HQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 28 contacts → |
“Liguori Academy is a private, non-profit high school committed to serving the community.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Calvary Christian Academycca.ccphilly.org HQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 24 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 | The Aspen Grove Schoolaspengrovephilly.com HQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 21 contacts → |
“The Aspen Grove School is a company based out of 1600 Christian St, Philadelphia, Pennsylvania, United States.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Philadelphia Academy CSphiladelphiaacademy.orgHQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 20 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 18 | Freire Charter Schoolfreirecharterschool.org HQ: Philadelphia, PA, United StatesReported employees: 201-500 | Philadelphia, PA, United States | 201-500 | Exact match | 18 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 19 | Cedar Grove Christian Academycgca.org HQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 | The Depaul Catholic Schooldepaulphila.independencemissionschools.org HQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 8 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | The Mill Creek Schoolmillcreek.phmc.org HQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 2 contacts → |
“The Mill Creek School at PHMC is a secondary educational program offering a comprehensive academic curriculum for high school students.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Multicultural Academy CSmacs.k12.pa.us HQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 22 of 38 company matches
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Independent high schools: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
38 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 38 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Independent high schools by metro in the United States
- Independent high schools in New York105
- Independent high schools in Houston88
- Independent high schools in Los Angeles66
- Independent high schools in Chicago63
- Independent high schools in Phoenix52
- Independent high schools in Miami45
- Independent high schools in Bronx41
- Independent high schools in Dallas41
- Independent high schools in Orlando38
- Independent high schools in Jacksonville34
- Independent high schools in Indianapolis31
- Independent high schools in Washington31
- Independent high schools in Memphis30
- Independent high schools in Richmond30
- Independent high schools in San Francisco30
- Independent high schools in San Antonio29
- Independent high schools in Tucson26
- Independent high schools in Austin25
Questions about this company list
What does Exact match mean for independent high schools?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many independent high schools did RevenueBase find based in Philadelphia, United States?
The saved snapshot records 38 matching company records, 2,717 tracked contacts and 1,404 verified emails. The public preview displays 22 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Independent high schools by geography
- Independent high schools based in Austin, United States
- Independent high schools based in Bronx, United States
- Independent high schools based in Chicago, United States
- Independent high schools based in Dallas, United States
- Independent high schools based in Houston, United States
- Independent high schools based in Indianapolis, United States
- Independent high schools based in Jacksonville, United States
- Independent high schools based in Los Angeles, United States
- Independent high schools based in Memphis, United States
- Independent high schools based in Miami, United States
- Independent high schools based in New York, United States
- Independent high schools based in Orlando, United States
Cite this list
RevenueBase Data Team. Top 22 independent high schools based in Philadelphia, United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/independent-high-schools/united-states/philadelphia.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Independent high schools based in Austin, United States
- Independent high schools based in Bronx, United States
- Independent high schools based in Chicago, United States
- Independent high schools based in Dallas, United States
- Independent high schools based in Houston, United States
- Independent high schools based in Indianapolis, United States
Company intelligence · public preview
Top 22 independent high schools based in Philadelphia, United States
RevenueBase records 38 matching company records for independent high schools based in Philadelphia, United States, with 2,717 tracked contacts and 1,404 verified work emails.
This public preview shows 22 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 22 independent high schools based in Philadelphia, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Mastery Schoolsmasterycharter.org HQ: Philadelphia, PA, United StatesReported employees: 1,001-5,000 | Philadelphia, PA, United States | 1,001-5,000 | Exact match | 1,031 contacts → |
“Mastery Charter Schools and Mastery Schools of Camden form a non-profit school network of charter, turnaround and renaissance schools in Philadelphia, PA and Camden, NJ, serving…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Kipp Philadelphia Public Schoolskippphiladelphia.org HQ: Philadelphia, PA, United StatesReported employees: 201-500 | Philadelphia, PA, United States | 201-500 | Exact match | 248 contacts → |
“KIPP Philadelphia Public Schools is a network of nine free public charter schools that opened its doors in 2003.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Girard Collegegirardcollege.edu HQ: Philadelphia, PA, United StatesReported employees: 201-500 | Philadelphia, PA, United States | 201-500 | Exact match | 159 contacts → |
“Girard College is an independent boarding school serving grades 1-12 in Philadelphia, PA.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Freire Schoolsfreireschools.org HQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 143 contacts → |
“Since Freire Schools has been a catalyst for unlocking the potential of some of Philadelphia and Wilmington’s most underserved youth.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | String Theory Schoolsstringtheoryschools.org HQ: Philadelphia, PA, United StatesReported employees: 201-500 | Philadelphia, PA, United States | 201-500 | Exact match | 119 contacts → |
“String Theory Schools is a premier education management organization committed to empowering students with the skills and knowledge to excel in all aspects of life.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | The City Schoolcityschool.org HQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 110 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Youthbuild Philadelphia Charter Schoolyouthbuildphilly.org HQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 101 contacts → |
“YouthBuild Philadelphia Charter School is a 501(c)(3) organization with over 30 years of experience helping young people rebuild their lives.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | The Philadelphia Schooltpschool.org HQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 87 contacts → |
“The Philadelphia School is a coeducational, nonsectarian independent school educating children from preschool through eighth grade.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Franklin Towne Charter High Schoolhs.franklintowne.org HQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 70 contacts → |
“Our Mission: Franklin Towne Charter High School allows students to pursue pathways of learning which are respective to their personal interests, from the humanities to STEM, in an…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Boys' Latin Of Philadelphiaboyslatin.org HQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 61 contacts → |
“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 description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Archbishop Ryan High Schoolarchbishopryan.com HQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 56 contacts → |
“Archbishop Ryan High School, an Archdiocese of Philadelphia coeducational school located in Northeast Philadelphia, is committed to empowering students to become contributing…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Cornerstone Christian Academycornerstonephiladelphia.com HQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 46 contacts → |
“The mission of Cornerstone Christian Academy is to educate children, including those from at‑risk neighborhoods, in an environment that provides the highest standards for academic…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Scholar Academiesscholaracademies.org HQ: Philadelphia, PA, United StatesReported employees: 501-1,000 | Philadelphia, PA, United States | 501-1,000 | Exact match | 33 contacts → |
“Scholar Academies transforms low-performing schools so every child has the knowledge and character to pursue the path to college and opportunities beyond.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Liguori Academyliguoriacademy.org HQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 28 contacts → |
“Liguori Academy is a private, non-profit high school committed to serving the community.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Calvary Christian Academycca.ccphilly.org HQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 24 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 | The Aspen Grove Schoolaspengrovephilly.com HQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 21 contacts → |
“The Aspen Grove School is a company based out of 1600 Christian St, Philadelphia, Pennsylvania, United States.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Philadelphia Academy CSphiladelphiaacademy.org HQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 20 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 18 | Freire Charter Schoolfreirecharterschool.org HQ: Philadelphia, PA, United StatesReported employees: 201-500 | Philadelphia, PA, United States | 201-500 | Exact match | 18 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 19 | Cedar Grove Christian Academycgca.org HQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 10 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 | The Depaul Catholic Schooldepaulphila.independencemissionschools.org HQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 8 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | The Mill Creek Schoolmillcreek.phmc.org HQ: Philadelphia, PA, United StatesReported employees: 51-200 | Philadelphia, PA, United States | 51-200 | Exact match | 2 contacts → |
“The Mill Creek School at PHMC is a secondary educational program offering a comprehensive academic curriculum for high school students.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Multicultural Academy CSmacs.k12.pa.us HQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 22 of 38 company matches
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Independent high schools: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
38 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 38 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Independent high schools by metro in the United States
- Independent high schools in New York105
- Independent high schools in Houston88
- Independent high schools in Los Angeles66
- Independent high schools in Chicago63
- Independent high schools in Phoenix52
- Independent high schools in Miami45
- Independent high schools in Bronx41
- Independent high schools in Dallas41
- Independent high schools in Orlando38
- Independent high schools in Jacksonville34
- Independent high schools in Indianapolis31
- Independent high schools in Washington31
- Independent high schools in Memphis30
- Independent high schools in Richmond30
- Independent high schools in San Francisco30
- Independent high schools in San Antonio29
- Independent high schools in Tucson26
- Independent high schools in Austin25
Questions about this company list
What does Exact match mean for independent high schools?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many independent high schools did RevenueBase find based in Philadelphia, United States?
The saved snapshot records 38 matching company records, 2,717 tracked contacts and 1,404 verified emails. The public preview displays 22 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Independent high schools by geography
- Independent high schools based in Austin, United States
- Independent high schools based in Bronx, United States
- Independent high schools based in Chicago, United States
- Independent high schools based in Dallas, United States
- Independent high schools based in Houston, United States
- Independent high schools based in Indianapolis, United States
- Independent high schools based in Jacksonville, United States
- Independent high schools based in Los Angeles, United States
- Independent high schools based in Memphis, United States
- Independent high schools based in Miami, United States
- Independent high schools based in New York, United States
- Independent high schools based in Orlando, United States
Cite this list
RevenueBase Data Team. Top 22 independent high schools based in Philadelphia, United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/independent-high-schools/united-states/philadelphia.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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