Who We Are


Rainmaker Ad Ventures is one of the fastest growing online media buying agencies in the U.S., focused on delivering high volume eMail, Display, Native, Video and Social traffic for a growing number of the internet’s top direct response marketers.

Founded in 2004 by entrepreneur Drew Kossoff, known throughout industry circles for his ability to “Make it Rain”… Drew and his team use their $200 million+ of media buying and selling experience and extensive rolodex of advertisers and publishers to secure the best rates and deliver millions in revenue annually for clients in verticals ranging from Health & Nutrition, Financial Services, Golf, Dating and many others.


In 2015, we debuted at #400 on the prestigious Inc. 500 List of Fastest Growing Private Companies in America and #15 on the LA Business Journal’s 100 Fastest Growing Private Companies in Los Angeles. Through 2020, we’ve continued to be recognized as one of the fastest growing private companies in America and Los Angeles making the Inc 5000 list for six years in a row (2015, 2016, 2017, 2018, 2019, 2020) and LABJ list for six years in a row as well.



It’s not enough to be successful – at Rainmaker we believe it’s equally important to succeed at creating impact. Through our 360º IMPACT initiatives, the more success we create for our clients, the more support we can provide to charities working to solve some of the world’s biggest problems. Learn more…

Scale, Monetize & Impact