While certification may not always be mandatory, many employers prefer or require phlebotomists to be certified. Common certifications for phlebotomists in the UK include the Certificate of Competence in Phlebotomy (CPT) offered by the National Association of Phlebotomists (NAP) and the Certificate in Phlebotomy (CPD) offered by various institutions. Phlebotomists may need to register with a professional body or organization, such as the Health and Care Professions Council (HCPC), depending on the specific requirements of their employer or local regulations.

Demand for phlebotomists in the UK is typically higher in London, Manchester, Birmingham, Edinburgh, and Glasgow.