D&B Hoovers receives mostly positive reviews for the quality of data, Salesforce integration, and the advanced search features. It also is highly regarded for the number of business contacts available, and for the ability to define a geographic radius (within 50 miles of a ZIP code, for example). Many users, however, commented that the data is outdated and in need of updating, and that customer service was disappointing.
As a last resort, you could try cold calling by phone. This is probably the most depressing and soul destroying activity on the planet. Even if you get past the usual questions such as ‘If you’re selling something – I’m not interested’ and ‘How did you get my number?’ you need a really slick and professional script and the ability to recognize and avoid lonely old ladies who just want to interact with someone, anyone, in fact.