What testerzy.pl does

testerzy.pl is a Poland-based software testing education and services company operating under the legal entity 21CN Radosław Smilgin, founded in 2006 as the first Polish-language portal dedicated to software testing. The company runs a multi-product platform built around a knowledge portal (articles, glossary, forum, news, event calendar) and a portfolio of free browser-based tools including kuQA (175 test-data generators and 43 validators for Polish identifiers such as PESEL, NIP, REGON, IBAN), PAVE 2.0 for PDF accessibility validation, and various validators. In 2026 it received official ISTQB accreditation from Polska Rada Jakości (PQB), authorizing it to deliver certified training across Foundation, Advanced, and Expert levels alongside specialist modules. The product surface also includes the testerzy+ tiered subscription (Free, 12.50 PLN/month Individual, 86.67 PLN/month Business for up to 10 accounts), MITC mobile accessibility certification, and an announced in-platform AI assistant.

The business generates revenue from four streams: professional training courses (1,000–5,500 PLN net per participant, delivered in-person across six Polish cities — Warszawa, Katowice, Kraków, Gdańsk, Wrocław, Poznań — and online), ISTQB certification exam administration, the testerzy+ recurring subscription, and professional services including test outsourcing, automation, performance testing, accessibility testing, code auditing, and consulting. Go-to-market is product-led growth combined with content marketing and community: a YouTube channel, newsletter, blog, free online tools, an active forum, and media patronage over events such as JDD 2026 and Tech Race Summit 2026 drive top-of-funnel traffic that converts into paid training, subscriptions, and exams.

The company serves a hybrid mix of customers: career changers and beginners entering software testing, working professional testers seeking advanced certifications, and IT companies and enterprises procuring testing services or hiring. With 12 employees and founder Radosław Smilgin at the helm, the operation is small but established, having trained thousands of practitioners over 20 years and recently accelerating product velocity across tools, subscriptions, and AI-augmented features.

Name

testerzy.pl

Legal name

21CN Radosław Smilgin

Website

https://testerzy.pl

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

11–50 employees

Short description

testerzy.pl is a Poland-based software testing education and services company operating the longest-running Polish-language QA knowledge portal, delivering ISTQB-accredited training and exams, browser-based testing tools, a testerzy+ subscription platform, and professional testing services to individual testers, career changers, and IT companies.

Ownership category

akta.pro rank

Product category

Software Testing Training & Certification

NAICS

Exam Preparation and Tutoring (611691), Computer Training (611420), Professional and Management Development Training (611430)

SIC

Services-Educational Services (8200), Services-Computer Programming Services (7371), Services-Prepackaged Software (7372)

akta.pro primary industry

QA, Test Automation & Software Quality (Manual/Automated Testing, Performance) (EDABAFAL)

akta.pro secondary industries

Software Engineering & Application Development Training (Languages, Frameworks, Testing) (BPAEANAI), Test Item Banks, Question Authoring & Assessment Design Tools (EDAFADAC)

Keywords

• Software testing training
• ISTQB certification
• Test automation services
• Premium testing subscription
• Accessibility testing

Headquarters

HQ city

Chorzów

HQ country

Poland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Professional Training Services: Classroom and online training courses on software testing including ISTQB certification preparation, automation testing, performance testing, accessibility testing, and test management. Pricing ranges from 1,000 PLN to 5,500 PLN per course.
2. Certification Exams: ISTQB certification examinations administered at multiple locations across Poland and online.
3. testerzy+ Premium Subscription: Monthly subscription model with tiers: Free (100 daily tool uses), Individual (12.50 PLN/month with unlimited access), Business (86.67 PLN/month for up to 10 accounts). Includes premium articles, tools, and exam materials.
4. Testing Services: Software testing, outsourcing, consulting, test automation, performance testing, and accessibility testing services for enterprise clients.

Pricing tiers

Go-to-market motion1 record

Distribution channels5 records

Marketing channels7 records

Core offering

testerzy.pl operates a Polish-language software testing education and services platform offering ISTQB-accredited training courses, official ISTQB certification exam delivery, and applied testing/consulting services. It complements paid training with the testerzy+ premium subscription (Individual, Business, and Business Pro tiers) that provides curated learning content, a professional knowledge base, and access to the testerzy+ community for individual testers and enterprise teams.

Product overview

testerzy.pl is a Polish software testing education and services company founded in 2006. The core product is the testerzy.pl portal, a comprehensive knowledge platform providing free articles, news, and online tools alongside premium content via the testerzy+ subscription. The product portfolio includes: (1) the main portal with a knowledge base, glossary, forum, and event calendar; (2) testerzy+ premium subscription for advanced articles, practice exams, and tool access; (3) online tools including validators (PESEL, NIP, IBAN), data generators, and kuQA with 175 generators; (4) ISTQB-accredited training courses (theory, practice, automation, AI, performance, accessibility, test management); (5) ISTQB certification exam delivery; and (6) professional testing services (outsourcing, automation, performance, accessibility, code audit, consulting). The company also operates testerzy AI as an AI integration initiative. Revenue comes from training courses, certification exams, premium subscriptions (testerzy+), and consulting services.

Differentiator

Problem solved

Functional benefit

Brands

• testerzy+: Premium subscription platform offering unlimited access to premium articles, tools, and educational materials

Products and services

• ISTQB-accredited training courses ISTQB-certified training programs (Foundation, Advanced, and specialized levels) accredited by the Polish Quality Board (PQB), delivered to individual testers and corporate groups in Polish.
• ISTQB certification exams Official ISTQB certification exam administration delivered under Polish Quality Board (PQB) accreditation, available to candidates who have completed preparation.
• testerzy+ subscription Premium subscription platform offered in Free, Individual, Business, and Business Pro tiers, providing curated learning content, professional knowledge base access, and testerzy+ community features for individual testers and corporate teams.
• Professional testing services Applied software testing and consulting engagements for client organizations, covering areas such as test automation, performance testing, security testing, and accessibility testing.

Quantifiable outcome

• Trained thousands of professionals over 20 years

Segments4 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

AI capability4 records

Feature4 records

Partnerships

Four partnerships are on record, tiered minor and core.

• JDD ConferenceminorGTM or Marketing Partner · 28 July 2026testerzy.pl has taken media patronage over JDD 2026, one of the longest-running conferences in Poland for software engineers. While primarily associated with Java and JVM community, the program includes topics relevant to testers and broader software engineering.
• Tech Race Summit 2026minorGTM or Marketing Partner · 19 June 2026Media partnership with Tech Race Summit 2026 organized by SOFTSWISS. Event to be held September 10, 2026 in Warsaw with speakers from AWS, Oracle, Cloudflare, Google, Fastly, Gcore, and ScyllaDB.
• ISTQB Testing CupminorOthers · 18 June 2026ISTQB Testing Cup - annual testing competition. The 2026 edition status is uncertain as it was not mentioned during General Assembly meetings. Previous edition was held in Copenhagen.
• Polska Rada Jakości (PQB)coreStrategic or Co-development PartnerPQB is the Polish national body for ISTQB certifications. testerzy.pl and founder Radosław Smilgin received official accreditation from PQB in 2026, authorizing them to provide ISTQB-certified training.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Ministry of Testing: Global community and training provider for software testers, offering courses, events (TestBash), and memberships. Direct analogue to testerzy.pl but operating in English at larger scale.
• Software Testing Help: Long-running QA training, tutorials and ISTQB preparation site with global reach. Comparable content-and-training business model targeting career changers and professional testers.
• Test Automation University (Applitools): Free, online software testing and test automation training platform with certifications. Closest direct peer on the eLearning/PLG side of QA training.

Broad incumbents

• Udemy: Mass-market online learning marketplace with extensive software testing catalogs. Sets a price benchmark and absorbs casual learners who might otherwise buy from niche providers.
• Coursera: Large-scale online education platform offering university-affiliated software testing and QA specializations. Represents enterprise and individual training competition at the top of the funnel.

Regional players

• Sages (Sages Sp. z o.o.): Polish training company running ISTQB-accredited and advanced software testing courses. Directly competes for ISTQB training market share in Poland.
• infoShare Academy: Polish IT training provider offering software testing, programming, and QA courses. Competes in the same Polish corporate/individual training market.
• Coders Lab: Polish bootcamp and IT training school including QA/tester tracks. Overlaps with testerzy.pl's career-changer and beginner training offerings in Poland.

Emerging players

• BrowserStack: Testing infrastructure platform increasingly bundling learning content and certifications. A potential adjacent competitor as tool vendors expand into tester education.

Others

• ISTQB (International Software Testing Qualifications Board): Governing body for the certification scheme testerzy.pl delivers. Critical ecosystem relationship rather than competitor, but its strategy and product roadmap shape testerzy.pl's exam/training economics.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@testerzy/shorts
• Facebookfacebook.com/testerzypl
• LinkedInlinkedin.com/company/testerzy

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 testerzy.pl