Kattis

What Kattis does

Kattis is a Stockholm-headquartered, privately-held code evaluation and technical assessment platform operating across three integrated go-to-market motions: enterprise technical recruitment, university computer science education, and a competitive programming developer community. Its core technology is a cloud-based automated grading engine that compiles, executes, and scores code submissions across more than 70 programming languages, augmented by a built-in plagiarism cross-checker that flags suspicious similarity in seconds, and a proprietary variant of the Elo rating system that estimates problem difficulty and user proficiency from solve rates and submission patterns. The company serves enterprise hiring teams via dedicated subdomains and a demo-led sales motion (customers include Klarna, Capgemini, Paradox Interactive, Academic Work, and Dynabyte), universities via per-seat tiered licensing (Standard at €25 and Premium at €39 per student per course, with OAuth 2 SSO and fixed-price options), and individual programmers through the open.kattis.com community platform integrated with the ICPC and IOI competitions. Kattis operates with a small team (1–10 employees) from Stockholm and a US office in Waco, Texas, with no disclosed external funding, suggesting a capital-efficient, organic-growth business model anchored by subscription per-seat revenue from education and quote-based recurring contracts from enterprise hiring.

Name

Kattis

Legal name

Kattis

Website

https://kattis.com

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

11–50 employees

Short description

Kattis is a Stockholm-based code evaluation platform serving enterprise technical hiring, university computer science education, and a competitive programmer community, with automated grading, plagiarism detection, and Elo-based difficulty scoring across 70+ programming languages.

Ownership category

akta.pro rank

Headquarters

HQ city

Vaxholm

HQ country

Sweden

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. Enterprise Recruitment Screening: B2B SaaS platform for companies to screen and evaluate programmer candidates through automated coding challenges. Pricing likely per-recruitment-seat or volume-based, with demo booking suggesting enterprise sales motion.
2. University Licensing (Standard): Standard tier at €25 per student per course, offering unlimited teachers, courses, students, and access to 4000+ assignment archive.
3. University Licensing (Premium): Premium tier at €39 per student per course, including everything in standard plus custom assignments, SSO/OAuth 2 integration, and priority support.
4. Custom/Fixed Price Agreements: For universities needing budget predictability, Kattis offers fixed price based on estimated number of students and classes.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

Kattis is a cloud-based code evaluation and assessment platform that automatically screens and evaluates programmer candidates through time-limited coding challenges for enterprise hiring, and automates code grading with plagiarism detection for university computer science courses. The platform supports over 70 programming languages, uses an Elo-based rating system to score problem difficulty and candidate proficiency, and provides a candidate tracking dashboard with access to submitted code for use in interviews. It also operates an open community where competitive programmers solve problems and build global rankings.

Product overview

Kattis is a cloud-based technical recruitment and code evaluation platform consisting of three integrated offerings: the Company Recruitment Platform for screening and hiring programmers through automated coding challenges, the Developer Community for problem-solvers with a global ranking system, and the University Platform for automated code grading and plagiarism detection in educational settings. The platform supports over 70 programming languages and includes a Python-based submit client for code submissions. Universities can choose between Standard (€25/student) and Premium (€39/student with SSO) pricing tiers.

Differentiator

Problem solved

Functional benefit

Products and services

• Kattis Company Recruitment Platform Cloud-based technical recruitment platform that automatically screens and evaluates programmer candidates through time-limited coding challenges (no more than 15 minutes), provides automatic code scoring within seconds, and includes a candidate tracking dashboard for enterprise hiring teams. Used by companies such as Paradox Interactive, Klarna, and Capgemini to objectively evaluate programming skills before interview.
• Kattis University Platform Automated code grading system for educational institutions that handles assignment correction, plagiarism checking, and course analytics across 10+ programming languages. Includes over 4,000 assignments from the archives and supports course analytics, placement exams, and summative assessments for computer science programs.
• Kattis Open Developer Community Online community platform at open.kattis.com offering coding challenges, global ranking lists, and job opportunities for programmers across 70+ programming languages. Integrates with ICPC and IOI competitions and serves as a talent pipeline for the enterprise recruitment business.

Quantifiable outcome

• Challenges take no more than 15 minutes for candidates to complete
• +2 more outcomes

Named customers11 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

AI capability1 record

Feature6 records

Partnerships

17 partnerships are on record, tiered core and minor.

• ICPC (International Collegiate Programming Contest)coreStrategic or Co-development PartnerKattis hosts ICPC platform where competitive programmers compete in the world championship of collegiate programming contests.
• IOI (International Olympiad in Informatics)coreStrategic or Co-development PartnerKattis platform supports IOI, the premier international computing competition for high school students.
• Paradox InteractiveminorChannel Partner/ Reseller/ DistributorParadox Interactive uses dedicated Kattis instance (paradox.kattis.com) for technical hiring of programmers, particularly C++ developers for game development.
• KlarnaminorChannel Partner/ Reseller/ DistributorKlarna uses dedicated Kattis instance (klarna.kattis.com) for developer recruitment screening.
• CapgeminiminorChannel Partner/ Reseller/ DistributorCapgemini uses Kattis for technical screening of candidates in recruitment processes.
• Academic WorkminorChannel Partner/ Reseller/ DistributorStaffing company uses Kattis for technical recruitment screening of developers.
• DynabyteminorChannel Partner/ Reseller/ DistributorIT training company uses Kattis to recruit skilled developers.
• Royal Institute of Technology (KTH)coreChannel Partner/ Reseller/ DistributorKTH uses dedicated Kattis instance (kth.kattis.com) for programming course automated grading; changed TA focus to student-centered learning.
• National University of Singapore (NUS)coreChannel Partner/ Reseller/ DistributorNUS uses Kattis for programming courses with 2700+ problem bank; supports large summative assessments with up to 300 students.
• University of ChicagocoreChannel Partner/ Reseller/ DistributorUniversity of Chicago uses Kattis for Masters Program in CS placement exams; students practice on past exams before placement exam.
• Baylor UniversityminorChannel Partner/ Reseller/ DistributorBaylor University uses dedicated Kattis instance (baylor.kattis.com) for Competitive Learning and Intro to Computation Theory courses.
• Linköping University (LiU)minorChannel Partner/ Reseller/ DistributorLinköping University uses Kattis for programming course automated grading.
• Reykjavik UniversityminorChannel Partner/ Reseller/ DistributorReykjavik University uses Kattis for programming education with automated grading.
• MIAO GroupminorChannel Partner/ Reseller/ DistributorResearch group uses Kattis jobs board to recruit people with passion for mathematics, programming, and solving hard problems.
• UncountableminorChannel Partner/ Reseller/ DistributorScientific R&D software company uses Kattis jobs board to hire software developers for future of scientific research development.
• 10XrecruitminorChannel Partner/ Reseller/ DistributorRecruitment company uses Kattis to connect Swedish startups with software engineering talent; relocation opportunities to Sweden.
• SkryminorChannel Partner/ Reseller/ DistributorSwedish developer company uses Kattis for recruitment with coding challenges; company for developers by developers.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• LeetCode: LeetCode operates a large competitive programming community and a hiring/assessment product, paralleling Kattis's combination of a developer ranking platform and a paid enterprise recruitment offering.
• CoderPad: CoderPad provides collaborative live coding environments for technical interviews, overlapping with Kattis's code-evaluation and 'use candidate code in interview' workflow.
• Gradescope (Turnitin): Gradescope offers automated grading and plagiarism detection for university assignments including programming, overlapping with Kattis's university-side automated code grading and plagiarism features used by NUS, KTH, and others.
• CodinGame: CodinGame combines gamified coding challenges with employer hiring solutions, comparable to Kattis's open platform rankings and enterprise recruitment screening combined into one product.
• TestGorilla: TestGorilla is a pre-employment assessment platform that includes coding tests alongside broader skills and cognitive assessments, competing with Kattis for enterprise hiring budgets focused on objective candidate screening.
• CodeSignal: CodeSignal offers technical assessments and a Certified Coding Assessment framework used by enterprises for developer hiring, with automated scoring and proctoring that closely mirrors Kattis's enterprise value proposition.
• HackerRank: HackerRank is a direct competitor offering automated technical assessments and coding challenges for enterprise hiring, with a similar multi-language code-evaluation platform and a developer community used for top-of-funnel talent sourcing.
• Qualified.io: Qualified.io (now part of Ada) sells take-home coding assessments and live coding interview tools to engineering teams, competing with Kattis in the automated code-evaluation niche for technical hiring.
• Codility: Codility provides online coding tests and screening for tech recruiting, targeting enterprise engineering managers with automated grading and plagiarism detection—directly overlapping Kattis's enterprise recruitment offering.

Broad incumbents

• LinkedIn (Microsoft) Skill Assessments: LinkedIn embeds skill and coding assessments into its recruiting platform as part of a much broader HR and professional network product, competing indirectly with Kattis by bundling lightweight technical screening into incumbent recruiting workflows.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/kattis

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

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 Kattis