Yes it is worth renting a B2B list and there are many providers who can you help you and one example of a company which I can name is BinaryClues which can help you in fulfilling your requirement.
They create database in-house using their own proprietary tools and also validates the data by sending it to the customers and creating a opt-in list of customers then and thereafter further sell it to their customers.
This process of validation of emails helps you to understand and gauge the authenticity of the database you purchase. b’coz it is very imperative that you should check the list which you are buying, if it is a opt-in compliant list and then it can be used in your marketing and sales campaigns.
BinaryClues has been helping companies in sending bulk email marketing campaigns on behalf of their customers. They also provide services like data profiling and data cleaning which helps you in maintaining the repository of the best data contacts for your marketing campaigns.
You can visit the http://www.binaryclues.com/blogs for more information or you can visit the website for more information on product and services. for any further information on your query, please send in your mail at firstname.lastname@example.org . One of the fastest startup database companies growing at a rapid pace and bringing in revolution in the database marketing & email marketing software industry.
You can also check the bulk email marketing services BinaryClues provides to their customers.