Determining the best ISO 22301 consultancy company can depend on various factors such as your specific requirements, location, budget, and preferences. However, here are some reputable firms known for their expertise in ISO 22301 certification consultancy:

PricewaterhouseCoopers (PwC): PwC is a globally recognized consulting firm known for its expertise in business continuity management and ISO 22301 certification services. They offer comprehensive consultancy services to help organizations develop robust business continuity management systems.

Deloitte: Deloitte is another prominent consulting firm offering services in business continuity management and ISO 22301 certification. They provide tailored solutions to help organizations assess risks, develop strategies, and achieve certification.

KPMG: KPMG offers consultancy services in business continuity management and ISO 22301 certification. They assist organizations in implementing effective business continuity plans and meeting the requirements of the ISO 22301 standard.

MSCi (Management System Compliance Incorporation): MSCincorporation is a leading certification body offering consultancy services for ISO 22301 certification. MSCi have extensive experience in auditing and certification and provide guidance to organizations in implementing business continuity management systems.

DNV GL: DNV GL offers consultancy services to help organizations achieve ISO 22301 certification. They provide expertise in risk management, business continuity planning, and compliance with the ISO 22301 standard.

SGS: SGS is a globally recognized certification body providing consultancy services for ISO 22301 certification. They assist organizations in developing business continuity management systems and achieving certification to demonstrate resilience and preparedness for disruptions.

When selecting a consultancy firm for ISO 22301 certification, consider factors such as their reputation, experience, expertise, client testimonials, geographic coverage, cost-effectiveness, and the level of support they provide throughout the certification process. It's advisable to reach out to multiple consultancies, discuss your requirements, and evaluate their proposals to determine the best fit for your organization.