There are plenty of options for certificates that can set the foundation for a successful start as a consultant. You can start with a Certified Management Consultant certification to demonstrate your experience and commitment to meeting the professional standards as a consultant.
Once you are confident in your skills, you can find certificates in your area of expertise to help confidently portray your knowledge and experience to your customers. You have plenty of options but focus on finding certifications that set you apart from your competitors and increase customer credibility.