Getting ISO consultancy in Saudi Arabia involves a few key steps:

Research and Identity Consultants: Start by researching ISO consultants or consultancy firms that operate in Saudi Arabia. Look for firms with experience in your industry and a proven track record of successful ISO implementations.

Check Qualifications and Certifications: Ensure that the consultants are certified and qualified to provide ISO consultancy services. They should have relevant certifications and experience with the specific ISO standard you are interested in.

Seek Recommendations: Ask for recommendations from other businesses or industry associations. Referrals from peers can help you find reputable consultants who have delivered successful results.

Evaluate Experience and Expertise: Assess the consultant's experience with the specific ISO standard you want to implement, such as ISO 27001 for information security or ISO 9001 for quality management. Check their case studies or client references to gauge their expertise.

Request Proposals: Contact a few selected consultants and request proposals or quotations. Discuss your specific needs, timeline, and budget to get a clear understanding of how they plan to assist you.

Review Contracts and Terms: Carefully review the terms and conditions of the consultancy contracts. Ensure that the scope of work, deliverables, and costs are clearly outlined.

Consider Local Knowledge: Choose a consultant who has knowledge of the local business environment and regulatory requirements in Saudi Arabia. This can be advantageous in navigating any local nuances.

Check for Support and Training: Verify that the consultant offers support and training for your staff, as this will be crucial for the successful implementation and maintenance of ISO standards.

Negotiate and Engage: Once you've selected a consultant, negotiate the final terms and engage them to start the consultancy process.

Here are a few ISO consultancy firms in Saudi Arabia that specialize in ISO certifications:

TUV Rheinland Saudi Arabia
Bureau Veritas Saudi Arabia

MSCincorporation 
SGS Saudi Arabia
DNV GL Saudi Arabia

These firms have experience with various ISO standards and can provide tailored consultancy services to meet your needs.