ITIL has certifications for professionals, but not for organiations.
Organizatios can be certified in service management through ISO 20000.
What is ITIL?
You can read this post about ITIL.
Certifications under ITIL
There are different certifications offered within the ITIL 4 scheme, in order of expertise:
- Foundation
- ITIL 4 Managing Professional
- ITIL 4 Strategic Leader
- Master
Complete list of ITIL certifications
Examination institutes
Axelos grant licenses to examination institutes.
Some licensed examination institutes (non-exhaustive list):
EXIN (only for ITIL v3)
Training Organizations
Axelos grant licenses to training organizations.
Licensed training organizations offers courses that may include exam taxes.
Examination institutes may offer information about licensed training partners near your area.
Training Material
Specialized companies offer training material for ITIL certifications.
Personally, I prepared ITIL 4 Foundation with Tecnofor.
ITIL Certification Exams
If you are doing a course from a training company, it may include the exam so you must check with them to know when it will be done.
If you are looking to do the exam on your own, you can check the training organizations listed before to see the available dates and price.
PeopleCert ITIL certification exams:
https://www.peoplecert.org/browse-certifications/it-governance-and-service-management/ITIL-1