D. Gary Madden of RM Enterprises in Cincinnati suggests taking advantage of every public speaking opportunity, even if you won't get paid, to get your name out there.
And don't neglect written publicity. "People think if it's in print, you're authentic and must be an expert," says Madden. "Query publications about writing articles, and find other ways to get your name in print."
Try offering your expertise as a source to magazines, newspapers and newsletters, which are always looking for experts to interview.
Obtaining a professional designation can also boost potential clients' confidence in you. The National Bureau of Professional Management Consultants awards the Certified Professional Consultant to Management (CPCM) certificate to individuals with at least five years of full-time or 10 years of part-time consulting experience, as well as to those who have client references and a bachelor's degree.