Company lists · Data refreshed September 2026
Top 22 Stem charter schools based in Chicago, United States
RevenueBase identified 39 stem charter schools headquartered in Chicago, United States as of September 2026 and tracks 2,331 professional contacts across them, including 917 with verified work emails. Los Angeles is the largest hub.
This list covers stem charter schools headquartered in Chicago, 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 22, 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.
The 22 largest stem charter schools based in Chicago, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 836 contacts → | ||||
Strong evidence “Noble is a nonprofit organization that runs 17 charter public high schools and one middle school in the city of Chicago.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 219 contacts → | ||||
Partial evidence “Since 2003, KIPP Chicago Schools has transformed education on Chicago's West and South Sides, serving as a beacon of academic excellence within the nationally renowned Knowledge…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 215 contacts → | ||||
Strong evidence “Perspectives Charter Schools is a network of five open-enrollment middle and high schools committed to teaching a rigorous college-prep curriculum.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 151 contacts → | ||||
Strong evidence “The University of Chicago Charter School is a neighborhood charter school on the South Side of Chicago, operated by the University of Chicago Urban Education Institute.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 108 contacts → | ||||
Strong evidence “North Lawndale College Prep (NLCP) is a coed, public charter high school with two campuses that serve ~ 700 students in grades 9-12.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 102 contacts → | ||||
Strong evidence “Urban Prep Academies is a 501(c)(3) nonprofit organization that operates a network of all-boys public schools including the country’s first charter high school for boys.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 89 contacts → | ||||
Strong evidence “CICS proudly partners with Distinctive Schools, Meridian Charter Schools, and ReGeneration Schools to operate 13 tuition-free public charter schools across Chicago.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 89 contacts → | ||||
Indirect evidence “Chicago Tech Academy's mission is to educate, empower and connect a diverse next generation of entrepreneurial thinkers to discover their passions, succeed in college and careers…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 72 contacts → | ||||
Partial evidence “Concept Schools has been providing its students with an innovative world class education, rich in math, science and technology focused on preparing students to become bold…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 43 contacts → | ||||
Indirect evidence “Our Mission The Great Lakes Academy mission is to prepare all of our students with the fundamental academic skills, critical thinking ability, and strength of character to excel…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 42 contacts → | ||||
Strong evidence “Catalyst Charter - Maria is a K-12 school based out of 6727 S California Av, Chicago, Illinois, United States.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 38 contacts → | ||||
Partial evidence “Project SYNCERE prepares the minds and creates pathways for underrepresented students to pursue careers in STEM.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 32 contacts → | ||||
Strong evidence “Opened in 1998, Betty Shabazz International Charter School is a network comprised of two K-8 Chicago elementary campuses.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 32 contacts → | ||||
Partial evidence “Chicago Collegiate is a 5th-12th grade tuition-free, open-enrollment public school located on the far South Side of Chicago in Roseland.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 30 contacts → | ||||
Partial evidence “The mission of Polaris Charter Academy is to educate students to be self-motivated, creative, critical thinkers, with the ultimate goal of shaping life-long learners and citizens…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 28 contacts → | ||||
Indirect evidence “The mission of ACE Tech is to provide our students with the highest level of instruction and academic achievement combined with exemplary character development that will prepare…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 22 contacts → | ||||
Strong evidence “Horizon Science Academy Belmont is a public charter school serving Kindergarten through eighth grades that opened in 2013.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 21 contacts → | ||||
Strong evidence “At INCS, we believe strong charter schools help create a better public school system for everyone.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 20 contacts → | ||||
Strong evidence “Alain Locke, located in the East Garfield Park neighborhood of Chicago, is one of the country’s most successful charter schools.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 18 contacts → | ||||
Strong evidence “Mission We foster an environment of inquiry and a love of learning so students are prepared to thrive in STEM-focused high school, college, and the world.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 12 contacts → | ||||
Strong evidence “Bronzeville Academy Charter School is a K through 8th grade school authorized by the Illinois State Charter Commission committed to educational excellence in STEAM (Science…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 9 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
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: stem charter schools. 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 stem charter schools.
- Partial evidence
- Its own public description names part of stem charter schools, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name stem charter schools. 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 22 of 39 stem charter schools based in Chicago, United States
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Stem charter schools based in Chicago, United States at a glance
As of Sep 22, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 39 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 stem charter schools, 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 Chicago, United States whose own description of what they do matches “stem charter schools”. 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 stem charter schools), 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 stem charter schools, and records with no verified work email. Companies headquartered outside Chicago 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, 917 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 22, 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.
Stem charter schools by metro in the United States
- Stem charter schools in Los Angeles47
- Stem charter schools in New York45
- Stem charter schools in Chicago39
- Stem charter schools in Philadelphia30
- Stem charter schools in Houston28
- Stem charter schools in Washington26
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 stem charter schools, 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 stem charter schools are there based in Chicago, United States?
RevenueBase identified 39 stem charter schools headquartered in Chicago, 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?
Noble Schools, headquartered in Chicago, tops this list with the largest team on record.
Which city has the most stem charter schools?
Los Angeles leads with 47 headquartered companies, followed by New York (45) and Chicago (39).
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 917 verified decision-maker contacts tracked across these 39 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 22, 2026.
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Stem charter schools by geography
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- Stem charter schools based in the 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 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.
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