Diamond Certified Sonoma County

Our dedicated team has decades of experience rating and certifying local companies on behalf of consumers. Only companies that score Highest in Quality and Helpful Expertise® in rigorous surveys of verified real customers earn the prestigious Diamond Certified award.

Our mission is to define excellence and identify for consumers the highest quality local companies. Our founders pioneered rating local companies based on customer satisfaction in 1990, back before the web existed. Our entire team is dedicated to ensuring you have confidence in the companies you choose. We are committed to performing all ratings and ongoing certification work with the highest integrity and accuracy.

We believe:

You the consumer have the right to know which companies are truly performing at the highest level of quality. The highest quality companies should be rewarded for their ongoing performance through public recognition. Companies should be held accountable for their performance, one customer at a time.

We only allow a limited amount of companies to earn Diamond Certified. In fact, only a handful of companies are able to qualify in most industries, and these we re-rate on an ongoing basis to assure you that they stay the best. And of course we always back you up with our powerful Diamond Certified Performance Guarantee.