At this moment you have plenty of companies in market however not all are genuine. Recently I came across a company which provides best B2B solutions.

Vereigen Media is in market since 5 years and has a reputation to awe for.
Be it content syndication, getting leads via email marketing, telemarketing or demand gen process this is a one stop solution.

If you looking for B2B services will highly recommend to give them a shot.
For more details visit : https://www.vereigenmedia.com/solutions.php