Althoff Catholic High School

Private Catholic Secondary Educationalthoffcatholic.org

Althoff Catholic High School is a private, non-profit Catholic college-preparatory high school in Belleville, Illinois, serving approximately 350 students in grades 9-12 through faith-based education, STREAM curriculum, and dual college credit partnerships with Saint Louis University and Southwestern Illinois College.

Company typePrivate
Founded1964
HeadquartersBelleville, United States
Headcount51–100
GTM typeB2C
OfferingServices

What Althoff Catholic High School does

Althoff Catholic High School is a private, non-profit Catholic college-preparatory institution serving approximately 350 students in grades 9-12 at its campus at 5401 W Main St, Belleville, Illinois. Founded in 1964 in honor of Bishop Henry J. Althoff and operating under the Diocese of Belleville, the school delivers faith-based secondary education to families across southwestern Illinois. For the 2024-2025 academic year, enrollment stood at its highest level in seven years, with a 13:1 student-to-teacher ratio, an average class size of 18, a 100% graduation rate, a 99% college acceptance rate, and an average of approximately $10 million in scholarship offers per graduating class.

The school's academic product is anchored by the STREAM Lab, an integrated Science, Technology, Religion, Engineering, Arts, and Math curriculum delivered through the Project Lead The Way framework. Differentiated offerings include the Saint Louis University 1818 Advanced College Credit program and dual-credit courses through Southwestern Illinois College (SWIC) under the Belleville CEO entrepreneurship program. Supporting products include a Learning Center providing tutoring and 504/IEP accommodations, four-year College Counseling, Crusader Summer Camps spanning PK through 12th grade, and IHSA-sponsored athletics across boys', girls', and co-ed teams. Operational infrastructure relies on a small set of standardized edtech platforms — RenWeb for student information, FACTS for tuition and financial aid, Parchment for transcript ordering, Eventbrite for camp registration, 8to18 for athletic scheduling, and NFHS Network for game streaming. No AI/ML capability is disclosed.

The business model is diversified across tuition, mandatory fees, charitable donations, and corporate matching gifts. Tuition for 2026-2027 is tiered at $9,100 for Diocesan Catholic students, $9,600 for Out-of-Diocese Catholic students, and $10,500 for Non-Catholic students, with sibling discounts up to free tuition for a third child and a flat $750 class fee per student. Approximately 25% of families received financial assistance, with average awards of $1,500 and 20-30 scholarships awarded annually. Non-tuition revenue is sourced from an Annual Fund drawing on an 11,000+ alumni base, corporate matching programs with Boeing, Caleres, Grainger, Grinnell Mutual, Hallmark, Northwestern Mutual Foundation, and Wells Fargo, and endowed scholarships. Distribution is direct through online applications, individual tours, and Shadow Days, supplemented by 10+ Catholic elementary feeder schools in the Diocese of Belleville and a Parents and Friends Club ambassador program.

Althoff Catholic High School firmographics

Firmographics

Name: Althoff Catholic High School
Legal name: Althoff Catholic High School
Website: https://althoffcatholic.org
Company type: Private
Founded year: 1964
Operating status: Operating
Headcount range: 51–100 employees
Short description: Althoff Catholic High School is a private, non-profit Catholic college-preparatory high school in Belleville, Illinois, serving approximately 350 students in grades 9-12 through faith-based education, STREAM curriculum, and dual college credit partnerships with Saint Louis University and Southwestern Illinois College.
Ownership category
akta.pro rank

Althoff Catholic High School industry classification

Industry

Product category: Private Catholic Secondary Education
NAICS: Elementary and Secondary Schools (6111), Elementary and Secondary Schools (611110)
SIC: Services-Educational Services (8200)
akta.pro primary industry: Public High Schools (EDAJAAAD)

Keywords

Catholic secondary education
College preparatory programs
STREAM curriculum
Dual enrollment courses
Private faith-based schooling

Where Althoff Catholic High School is headquartered

Location

Headquarters

HQ city: Belleville
HQ country: United States
HQ region: North America

Offices1 record

Markets served

Althoff Catholic High School business model

Business model

GTM type: B2C
Offering type: Services
Cost components: Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure, Others

Revenue model

Tuition: Primary revenue stream from tuition payments. Tuition rates vary by student type: Diocesan Catholic ($9,100), Out of Diocese Catholic ($9,600), Non-Catholic ($10,500). Family discounts available for multiple enrolled students.
Annual Fund Donations: Charitable donations from trustees, alumni, supporters, parents, businesses, and current families. Funds cover operational gaps not covered by tuition, including instructional tools, teacher salaries, and building maintenance.
Corporate Matching Gifts: Corporate matching gift program where employers match employee donations, doubling impact. Partners include Boeing, Caleres, Grainger, Grinnell Mutual, Hallmark, Northwestern Mutual Foundation, Wells Fargo.
Class Fees and Activity Fees: Flat class fee of $750 covering course fees, retreat fees, testing fees, internet access, student insurance, graduation fees, and ebook costs. Athletic fees of $125 per sport with family caps.
Scholarship Endowments: Endowed and one-time scholarships established by donors to honor individuals and provide financial assistance to students.

Pricing tiers

Model	Billing	Price
Subscription	Annual	Diocesan Catholic Students
Subscription	Annual	Out of Diocese Catholic Students
Subscription	Annual	Non-Catholic Students
Subscription	Annual	Flat Class Fee (All Grades)
Unit Pricing	Annual	Athletic Fee
One time/ perpetual license	Pay-as-you-go	Application Fee
Other	Annual	Financial Aid

Go-to-market motion2 records

Distribution channels3 records

Marketing channels9 records

Althoff Catholic High School product offering

Product offering

Core offering

Althoff Catholic High School is a private Catholic college-preparatory high school that delivers faith-based secondary education to approximately 350 students in grades 9-12 through a STREAM-integrated curriculum, dual college credit programs (Saint Louis University 1818 and SWIC), Advanced Placement coursework, college counseling, arts and athletic programs, and academic support services. The school charges annual tuition between $9,100 and $10,500 (depending on Catholic affiliation) plus a $750 class fee, and operates as a non-profit institution under the Diocese of Belleville.

Product overview

Althoff Catholic High School is a Catholic college-preparatory institution offering a comprehensive educational program for students in grades 9-12. The school's product portfolio centers on its core academic curriculum enhanced by specialized programs including the STREAM Lab for science, technology, engineering, and mathematics education; the College Credit Classes program providing dual enrollment through SLU 1818 and SWIC partnerships; and robust Arts programs encompassing Visual Arts, Theatre, and Music. The Belleville CEO Program offers entrepreneurship education while the Learning Center provides academic support services. Additional offerings include Crusader Summer Camps, College Counseling, and extensive Athletic Programs spanning IHSA-sponsored sports and club-level activities. The school operates with a 13:1 student-teacher ratio and maintains accreditation through NCEA, Diocese of Belleville, and Illinois State Board of Education.

Differentiator

Problem solved

Functional benefit

Products and services

STREAM Lab Integrated Science, Technology, Religion, Engineering, Arts, and Math Lab featuring hands-on learning with real-world technology and professional-grade equipment. Includes Project Lead The Way courses such as Introduction to Engineering Design, Principles of Engineering, Digital Electronics, Biomedical Science, and Forensic Science.
College Credit Classes
Visual Arts Program
Theatre Program
Music Program
Belleville CEO Program
Crusader Summer Camps
Learning Center
College Counseling Program
Athletic Programs

Quantifiable outcome

100% graduation rate
+5 more outcomes

Companies that use Althoff Catholic High School

Customer profile

Named customers1 record

Segments3 records

Ideal customer profiles3 records

Althoff Catholic High School technology and API

Technology

Technology focussed No

API detail

Has API: No
API docs
API detail

Core technology

AI maturity

App detail

Integration6 records

Feature3 records

Althoff Catholic High School partnerships and signals

Strategic signal

Partnerships

22 partnerships are on record, tiered core and minor.

Saint Louis University (SLU)coreStrategic or Co-development Partner1818 Advanced College Credit partnership allowing students to earn college credit with weighted GPA. Students receive SLU transcripts for grades of C or higher with 3.0 cumulative GPA and additional fee payment.
Southwestern Illinois College (SWIC)coreStrategic or Co-development PartnerDual credit courses through Belleville CEO Program providing 4 college credits (MGMT 201 Entrepreneur Basics and MGMT 203 Business Plan course).
Project Lead The Way (PLTW)coreTechnology or IntegrationLeading provider of rigorous STEM education curricular programs. PLTW students engage in hands-on activities reflecting real-world challenges with skills validated by leading companies.
Diocese of BellevillecoreStrategic or Co-development PartnerParent diocese providing Catholic education oversight, parish assessment funding for Catholic families, and connection to 10+ Catholic elementary feeder schools.
HSHS St. Elizabeth's HospitalminorStrategic or Co-development PartnerAthletic training partnership providing Certified Athletic Trainers to students through HSHS Athletes Advantage program for on-site medical care.
BoeingminorGTM or Marketing PartnerCorporate matching gift program for employee donations to Althoff Catholic.
CaleresminorGTM or Marketing PartnerCorporate matching gift program for employee donations to Althoff Catholic.
GraingerminorGTM or Marketing PartnerCorporate matching gift program for employee donations to Althoff Catholic.
HallmarkminorGTM or Marketing PartnerCorporate matching gift program for employee donations to Althoff Catholic.
Northwestern Mutual FoundationminorGTM or Marketing PartnerCorporate matching gift program for employee donations to Althoff Catholic.
Wells FargominorGTM or Marketing PartnerCorporate matching gift program for employee donations to Althoff Catholic.
Grinnell MutualminorGTM or Marketing PartnerCorporate matching gift program for employee donations to Althoff Catholic.
Blessed SacramentminorChannel Partner/ Reseller/ DistributorCatholic elementary school in Belleville as feeder to Althoff Catholic.
Holy ChildhoodminorChannel Partner/ Reseller/ DistributorCatholic elementary school in Mascoutah as feeder to Althoff Catholic.
Holy TrinityminorChannel Partner/ Reseller/ DistributorCatholic elementary school in Fairview Heights as feeder to Althoff Catholic.
Our Lady Queen of PeaceminorChannel Partner/ Reseller/ DistributorCatholic elementary school in Belleville as feeder to Althoff Catholic.
Sister Thea BowmanminorChannel Partner/ Reseller/ DistributorCatholic elementary school in East St. Louis as feeder to Althoff Catholic.
St. ClareminorChannel Partner/ Reseller/ DistributorCatholic elementary school in O'Fallon as feeder to Althoff Catholic.
St. JamesminorChannel Partner/ Reseller/ DistributorCatholic elementary school in Millstadt as feeder to Althoff Catholic.
St. John the BaptistminorChannel Partner/ Reseller/ DistributorCatholic elementary school in Smithton as feeder to Althoff Catholic.
St. JosephminorChannel Partner/ Reseller/ DistributorCatholic elementary school in Freeburg as feeder to Althoff Catholic.
St. Teresa of the Child JesusminorChannel Partner/ Reseller/ DistributorCatholic elementary school in Belleville as feeder to Althoff Catholic.

Scale indicators13 records

Recent moves6 records

Expansion highlights6 records

Althoff Catholic High School competitors and assessment

Company assessment

Direct peers

Mater Dei Catholic High School: Co-ed Catholic high school in Breese, IL (Diocese of Belleville), targeting central and southern Illinois Catholic families with college-prep curriculum and athletic programs. Direct enrollment competitor across the diocesan geography.
Father McGivney Catholic High School: Newer Catholic co-ed high school in Glen Carbon, IL, also under the Diocese of Belleville, serving southwestern Illinois families with college-prep focus and growing feeder pipeline, competing head-to-head for the same demographic in Metro East St. Louis.
Marquette Catholic High School: Catholic high school in Alton, IL, serving similar southwestern Illinois/Mississippi River region Catholic families; comparable co-ed, college-prep model, athletic programming, and Diocesan affiliation structure.
Gibault Catholic High School: Co-ed Catholic college-preparatory high school in Waterloo, IL, also within the Diocese of Belleville, serving southwestern Illinois families with similar tuition, STREAM/academic offerings, and athletic programs. Direct competitor for the same feeder Catholic elementary pipeline.

Others

Holy Cross Catholic Academy / Academy of the Sacred Heart (illustrative Catholic secondary): Network of Catholic schools in St. Louis region providing faith-based secondary education options; relevant as alternative Catholic school pathways southwestern Illinois families might consider or as benchmark for feeder-pipeline and programming strategy.

Broad incumbents

Christian Brothers College High School (CBC): Established Catholic college-prep high school in St. Louis metro, drawing families from southwestern Illinois with broader extracurricular and AP offerings, representing a scale-tier alternative in the same regional market.
De Smet Jesuit High School: Larger established Catholic/Jesuit college-prep high school in St. Louis metro area, recruiting the same southwestern Illinois Catholic families (especially those willing to cross the river), with stronger brand and broader college-prep/specialty programming.
Incarnate Word Academy: Catholic college-prep all-girls high school in St. Louis metro drawing from same regional Catholic family pool; comparable emphasis on faith formation plus college readiness outcomes (99%+ college placement).
St. Louis University High School (SLUH): All-boys Jesuit college-prep high school in St. Louis that namesakes the SLU 1818 college-credit partnership; attracts top-performing Catholic families across Metro East with strong college placement record analogous to Althoff's outcomes.

Regional players

Quincy Notre Dame High School: Catholic co-ed college-prep high school in western Illinois (Diocese of Springfield), serving a similar rural/small-city Catholic market with comparable tuition band and DIOCESAN feeder model, though geographically removed from Althoff's catchment.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Althoff Catholic High School compliance and trust

Trust signal

Compliance3 records

Althoff Catholic High School financial estimates

Financial estimate

Revenue estimate

Valuation estimate

Althoff Catholic High School leadership team

Management profile

Number of profiles

Profiles9 records

Althoff Catholic High School funding detail

Funding detail

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

Althoff Catholic High School M&A and investment

M&A and investment

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Althoff Catholic High School

What does Althoff Catholic High School do?

Is Althoff Catholic High School a public or private company?

Althoff Catholic High School is a private company. It is classified as nonprofit foundation owned and is currently operating.

When was Althoff Catholic High School founded?

Althoff Catholic High School was founded in 1964. It employs 51 to 100 people.

Where is Althoff Catholic High School based?

Althoff Catholic High School is headquartered in Belleville, United States, in the North America region.

How does Althoff Catholic High School make money?

Five revenue lines are on record. Tuition is the primary driver. The others are annual Fund Donations, corporate Matching Gifts, class Fees and Activity Fees and scholarship Endowments.

Who are Althoff Catholic High School's main competitors?

Direct peers on record are Mater Dei Catholic High School, Father McGivney Catholic High School, Marquette Catholic High School and Gibault Catholic High School. Holy Cross Catholic Academy / Academy of the Sacred Heart (illustrative Catholic secondary) is listed as an others. Broad incumbents are Christian Brothers College High School (CBC), De Smet Jesuit High School, Incarnate Word Academy and St. Louis University High School (SLUH). Quincy Notre Dame High School is listed as a regional player.

Does Althoff Catholic High School have an API?

No public API is recorded for Althoff Catholic High School.

What industry is Althoff Catholic High School in?

Althoff Catholic High School's product category is Private Catholic Secondary Education. Its primary akta.pro industry code is EDAJAAAD, Public High Schools. Its NAICS code is 6111 and its SIC code is 8200.