Caribou Contests Inc.

What Caribou Contests Inc. does

Caribou Contests Inc. was a private Canadian education technology company founded in 2009 by Dr. Thomas Wolf and headquartered in Thorold, Ontario. The company operated cariboutests.com, a fully web-based platform delivering online mathematics contests, interactive mathematical games, and educational content to students from Kindergarten through Grade 12. Its core product was a series of timed math contests held throughout the Caribou Cup academic year (October through May) across seven grade bands (K/1, Grade 2, 3/4, 5/6, 7/8, 9/10, 11/12), with annual standings aggregating into the Caribou Cup championship. The platform also offered 27+ browser-based mathematical games (chess, sudoku, towers of hanoi, mastermind, GeomeTree, induction puzzles, and others) that doubled as practice tools and as embedded interactive contest questions, plus a math history educational module.

Technically, Caribou was a small, self-serve, browser-only application with no native mobile app, hosted on Canadian servers operated by Vaxxine and fronted by Cloudflare for CDN and DDoS protection. The platform was distinguished by a privacy-first architecture — students could use aliases, no email was required, and the company achieved a perfect 10/10 RiskRecon score across all nine cybersecurity evaluation categories. Multilingual contest delivery was supported in English, French, Persian, Mandarin, Ukrainian, Khmer, Vietnamese, Malay, and additional languages via Google Translate. Payment processing was outsourced entirely to PayPal.

The business model was predominantly freemium with educator-led distribution. K/1 and Grade 2 students participated free year-round, and the October contest was free for all higher grades; paid access codes, School-Wide passes, and All-Inclusive bundles (including written solutions, unlimited games, GeomeTree, Calcrostic, and Proof by Induction) monetized the remaining contests. A special $1 CAD per-student tier served virtual schools with over 300 students, and several African countries (Ghana, Mali, Kenya, Senegal, South Africa) received completely free access. At peak, the platform served over 50,000 students per year across 35+ countries through a 1–10 person team, with growth driven entirely by community and word-of-mouth among teacher coordinators. Following the death of founder Dr. Thomas Wolf in 2024, Caribou Contests announced the immediate cessation of contest operations and stated its intent to release games and resources free of charge as part of his legacy.

Name

Caribou Contests Inc.

Legal name

Caribou Contests Inc.

Website

https://cariboutests.com

Company type

Private

Founded year

2009

Operating status

Closed

Headcount range

1–10 employees

Short description

Caribou Contests Inc. was a Canadian education technology company that operated cariboutests.com, a web-based platform delivering online math contests, interactive games, and educational content to K-12 students across 35+ countries, serving over 50,000 participants annually through a freemium model before ceasing operations in 2024.

Ownership category

akta.pro rank

Product category

K-12 Math Education Platform

NAICS

Exam Preparation and Tutoring (611691)

SIC

Services-Educational Services (8200)

akta.pro primary industry

Math Competitions & Tournament Organizers (EDAMAEAH)

akta.pro secondary industries

Math Games, Puzzles & Recreational Math Programs (EDAMAEAM), Math Competition Administration Services (Proctoring, Grading, Logistics) (EDAMAEAO), Online Math Enrichment Platforms & Courses (EDAMAEAF)

Keywords

• Online math contests
• K-12 math education
• Educational games platform
• Student math competitions
• Interactive learning platform

Headquarters

HQ city

Thorold

HQ country

Canada

HQ region

North America

Offices1 record

Markets served

GTM type

B2C

Offering type

Software

Cost components

Technology or R&D, Personnel, Infrastructure, Operations, Marketing or Sales

Revenue model

1. Contest Participation Fees: Paid access codes for contest participation for grades 3/4 through 11/12 (except October contest which is free). School-Wide passes available at discounted rates for physical schools to encourage mass participation.
2. All-Inclusive Access: Premium packages including written solutions to all previous contests, unlimited game access, interactive practice tests, and extra math enrichment content like Calcrostic Puzzle Book and GeomeTree mini-courses.
3. Virtual School Pricing: Special pricing of $1 per student for all 6 contests available to virtual schools with over 300 students, payable via cheque or transfer.
4. Free Tier: Free participation for K/1 and Grade 2 levels year-round, and free October contest for all other grades. Free games with 5-minute time limit for non-logged-in users.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels7 records

Core offering

Caribou Contests Inc. operates a web-based educational platform that hosts online mathematics competitions for K-12 students across multiple grade levels (K/1 through 11/12) throughout the academic year (October to May). The platform includes the annual Caribou Cup championship aggregating student scores, 27+ interactive math games that serve as both practice tools and contest questions, practice tests with written solutions, and mini-courses such as GeomeTree and Proof by Induction.

Product overview

Caribou Contests Inc. operates a web-based educational platform offering online math contests, games, and learning resources for students worldwide. The core product consists of interactive online math contests held throughout the academic year (October to May) across multiple grade levels (K/1 through 11/12), with the annual Caribou Cup championship aggregating scores. The platform includes 27+ mathematical games that serve both as entertainment and as interactive contest questions. Additional paid offerings include All-Inclusive Access (combining unlimited game access, practice tests, written solutions, and mini-courses like GeomeTree and Proof by Induction), School-Wide Contest Access for physical schools, and coordinator tools for teachers to manage student participation. The platform is entirely web-based with no mobile application, supporting multiple languages including English, French, Persian, Mandarin, Ukrainian, Khmer, Vietnamese, and Malay. Note: The company announced it is ceasing all contest operations effective immediately following the passing of its founder, Dr. Thomas Wolf.

Differentiator

Problem solved

Functional benefit

Products and services

• Online Math Contests Interactive online math contests for students across multiple grade levels (K/1, Grade 2, 3/4, 5/6, 7/8, 9/10, 11/12), held multiple times throughout the Caribou Cup year (October to May), featuring both standard multiple-choice and interactive game-based questions.
• Caribou Cup Annual championship competition that aggregates student scores across all contests throughout the year, ranking students and schools with prizes awarded to top performers.
• Math Games Collection Collection of 27+ interactive mathematical games including 2048, Bomb Defuser, Calcrostic, Chess, Chomp, Dots, Floodfill, Fruit Salad, GeomeTree, Hackenbush, iChomp, Induction, Knot Colouring, Lights, Magic Square, Mastermind, Mazes, Nim, Packing, Skyscrapers, Sliding Blocks, Sokoban, Spider Web, Sudoku, Tangram, Towers of Hanoi, Turtle Walk, and Unknotting. Some games appear as interactive questions in contests.
• Coordinators Portal Teacher/coordinator interface for managing student accounts, distributing access codes, purchasing participation, viewing results, and accessing contest-day tools.
• Math History Educational content about the history of mathematics available to students and site visitors.

Quantifiable outcome

• Free participation available for K/1 and Grade 2 levels year-round, reducing cost barrier for early math engagement
• +2 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Five partnerships are on record, tiered minor and core.

• Fields InstituteminorOthersListed as a sponsor for 2026/2027. The Fields Institute is a research institute affiliated with Canadian universities focusing on mathematical sciences.
• Canadian Mathematical Society (CMS)minorOthersListed as a sponsor for 2026/2027. CMS is a professional association for mathematicians in Canada.
• VaxxinecoreTechnology or IntegrationInternet provider hosting Caribou's servers and database. Vaxxine has operated as an internet provider for over 40 years and has theoretical access to all Caribou data. Student data is stored only at this Canadian provider per privacy policy.
• CloudflarecoreTechnology or IntegrationContent Delivery Network operator providing fast global content delivery and DDoS protection. Manages HTTPS encryption for all site communications.
• PayPalcoreChannel Partner/ Reseller/ DistributorPayment processor for online transactions. Handles all payment processing - no credit card details or PayPal account details are received by Caribou.

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• IXL Learning: IXL provides K-12 math (and other subject) adaptive practice and is widely adopted by schools and school boards. It competes with Caribou for school-wide math practice budgets, though it focuses on adaptive practice rather than competitive contests.
• Khan Academy: Khan Academy provides free K-12 math instruction with practice exercises, instructional videos, and unit test prep that overlaps with Caribou's math enrichment use case. As a much larger, free incumbent, it competes for the same student/coordinator audience but does not specialize in timed competitive contests.

Direct peers

• Brilliant: Brilliant offers interactive, problem-based math and logic learning experiences for learners of all ages, with gamified daily challenges. It overlaps with Caribou's interactive math games and problem-solving practice orientation, serving similar self-directed student learners.
• MATHCOUNTS Foundation: MATHCOUNTS runs school- and chapter-based math competitions for U.S. middle school students, relying on teacher-coordinator networks similar to Caribou's. It is a direct comparable in the school-coordinated math contest category.
• Math Kangaroo: Math Kangaroo is an international K-12 math competition with participation from 35+ countries, organized as an annual single-day event. It competes with Caribou for the same school-coordinator channel and student persona in the math contest category.
• Beast Academy: Beast Academy (by Art of Problem Solving) is a K-8 math curriculum and enrichment program oriented toward advanced and competition-track students. It targets the same math-loving, competition-prep student persona as Caribou.
• Art of Problem Solving: Art of Problem Solving operates one of the largest K-12 math enrichment and competition preparation platforms, including textbooks, online courses, and a community forum. It is the closest direct comparable to Caribou, serving the same student/coordinator personas with contest prep and interactive math content.
• American Mathematics Competitions (MAA): The Mathematical Association of America administers the AMC 8/10/12 and subsequent AIME/USAMO pipeline for U.S. K-12 math contests. It competes with Caribou for the high-performing student persona preparing for national and international math olympiads.
• CEMC (Centre for Education in Mathematics and Computing, University of Waterloo): CEMC runs the Canadian math contest series (Cayley, Galois, Hypatia, Fermat, Euclid, Canadian Open Mathematics Challenge) and is the canonical Canadian math competition organizer. It directly overlaps with Caribou's audience, grade-level structure, and contest-based revenue model, and is the most direct geographic comparable from Canada.

Emerging players

• Prodigy Education: Prodigy offers a gamified K-8 math learning platform adopted by millions of students via school channels. It overlaps with Caribou's interactive math games positioning and school coordinator GTM, but does not run competitive contests.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights5 records

Customer concentration

• Xtwitter.com/CaribouTests
• YouTubeyoutube.com/channel/UCe9dU5vJ41RDq249eUo004Q
• Facebookfacebook.com/cariboucontests
• Instagraminstagram.com/cariboucontests
• LinkedInlinkedin.com/company/caribou-contests

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

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

M&A

Investments

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

Frequently asked questions about Caribou Contests Inc.