Determining the best ISO 21001 certification consultancy can depend on various factors such as your specific needs, location, budget, and preferences. However, here are some reputable ISO 21001 certification consultancies known for their expertise and quality services:

MSCi (Management System Compliance Incorporation): MSCincorporation is a globally recognized certification body offering a wide range of services, including ISO 21001 certification consultancy. MSCi have extensive experience in auditing and certification across various industries.

DNV GL: DNV GL is another prominent certification body known for its expertise in management system certification, including ISO 21001. They offer comprehensive consultancy services to help organizations implement effective educational organization management systems.

SGS: SGS is a leading inspection, verification, testing, and certification company with a global presence. They offer ISO 21001 certification consultancy services to educational institutions seeking to improve their management systems.

TÜV SÜD: TÜV SÜD is a trusted certification body providing services in auditing, testing, inspection, and certification. They offer consultancy services for ISO 21001 certification, helping educational organizations meet the standard's requirements.

Intertek: Intertek is a multinational certification body offering ISO 21001 certification consultancy services to educational institutions worldwide. They provide tailored solutions to meet the specific needs of their clients.

LRQA (Lloyd's Register Quality Assurance): LRQA is a globally recognized certification body known for its expertise in management system certification. They offer consultancy services to assist organizations in implementing ISO 21001-compliant educational management systems.

When selecting a consultancy, consider factors such as their reputation, experience, expertise in ISO 21001, client testimonials, geographic coverage, cost-effectiveness, and the level of support they provide throughout the certification process. It's also advisable to reach out to multiple consultancies to compare their services and determine which one best aligns with your organization's needs and objectives.