In short
ISTQB® is about testing software, IREB® is about requirements engineering – eliciting and managing requirements. Put simply: IREB® helps you build the right thing; ISTQB® helps you verify it correctly. Both are vendor-neutral, internationally recognised and modular, from Foundation to Expert level.
ISTQB® at a glance
The ISTQB® Certified Tester scheme is the most widely adopted certification scheme for testing knowledge internationally. Start with the Foundation Level (fundamentals, test process, test design). Advanced-level certificates such as Test Management and Test Analyst build on it, plus specialist modules like Testing with Generative AI. Worth planning for: ISTQB® admits candidates to any exam above Foundation Level only if they already hold the CTFL certificate.
IREB® at a glance
The IREB® CPRE (Certified Professional for Requirements Engineering) is the established certification scheme for requirements work. Unlike ISTQB®, there is no prerequisite: anyone can sit the CPRE® Foundation exam. The Foundation Level teaches how to elicit, document, validate and manage requirements – the basis for software doing the right thing and for requirements being testable at all.
Which one fits me?
- Tester, test manager, test automation engineer: ISTQB® – Foundation, then Advanced Level by role.
- Business analyst, requirements manager, product owner: IREB® CPRE.
- Project lead, quality manager: often both – at least one Foundation Level each for a shared vocabulary.
Cost, exam and prerequisites compared
| ISTQB® CTFL | IREB® CPRE Foundation | |
|---|---|---|
| Seminar | 3 days, €1,300 plus VAT | 3 days, €1,190 online / €1,300 in-person, plus VAT |
| Exam fee | €215 plus VAT | €265 plus VAT |
| Exam format | 40 multiple-choice questions, 60 minutes, pass mark 65 % | Multiple choice; details per the IREB® exam regulations |
| Prerequisite | none for Foundation Level; above it ISTQB® requires the CTFL certificate | none – not even for higher levels |
| Validity | unlimited, no recertification | unlimited, no recertification |
| Levels | Foundation → Advanced (Test Analyst, Test Management) → Specialist (e.g. CT-GenAI) → Expert | Level 1 Foundation → Level 2 Practitioner (Elicitation, Modelling, Requirements Management, RE@Agile) → Level 3 Specialist → Level 4 Expert |
Prices as of August 2026, plus VAT; exam fees are set by the certification bodies. The price shown in the booking form applies.
Can you combine both?
Yes – and it is often the strongest path. Poor requirements are one of the most common root causes of defects; understanding requirements engineering and testing closes the gap between “what did we want?” and “does it work?”. An overview of the levels in both schemes is shown in the ISTQB®/IREB® career path.
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