If you’re lacking in good, results-driven testimonials, one alternative is to use “borrowed” credibility to build the case for your service. Here are five ways for doing that:

1. Research and Statistics. Studies and numbers that support the soundness of your approach will go a long way in convincing buyers of the viability of your services. Of course, the more prestigious the source of the research, the better. For example, a cause marketing consultant might say: According to research by Cone Inc., 87% of customers are likely to switch to a similar product that is associated with a good cause, as long as price and quality are equal.

2. Articles in A-list General or Industry Media. Ink or air time discussing the value of your type of service or a key element of your approach also carries weight with your prospects. An image consultant might include: As a recent Wall Street Journal said, “Smart dressing involves sending subliminal messages, particularly when a serious job is at stake. This is something that even high-ranking business leaders can underestimate.”

3. Quotes from Experts and Respected Celebrities. The same benefits apply when you include quotes from people who are well-known to your target audience. So if you offer leadership training seminars with a focus on developing more innovative leaders, this quote from Steve Jobs, “Innovation distinguishes between a leader and a follower,” would be a potent addition to your marketing.

4. Photographs of Happy Clients. One clever financial advisor, who was not allowed to use testimonials, started posting photos of clients in various locations around the world wearing the high-quality logo jacket he’d given them as a welcome gift. His clients loved seeing their pictures on his website and in his newsletters, and prospects could see he had a good relationship with his clients. Of course, the prospects could easily infer that the clients were able to take those trips because the advisor had done a good job.

5. Your Own Track Record. If you’re launching a new service, you may not have client results yet. Therefore, be sure to mention your own success using the concepts behind your service, as well as successes you’ve had in similar areas. While investment ads are forced to say “past performance is no guarantee of future value,” most people do in fact use past performance as a gauge of future potential. Also, be sure to mention any relevant credentials you have.

So next time you’re lamenting a lack of great testimonials, consider bolstering the case for your product or service by “borrowing” others’ credibility—then get moving on getting those testimonials!