SAN FRANCISCO, Jan. 30, 2018 (GLOBE NEWSWIRE) --, a San Francisco and New York-based company building the most scalable, self-serve mobile programmatic advertising platform, announced that it has raised $1.5m in seed funding led by London Venture Partners and today is launching its beta program. Olive Tree Capital, Otter Consulting, Gramercy Fund, Ride Ventures, Rising Tide, and a short list of prominent industry angels contributed to the seed round, which has allowed Downstream’s team to build out its turnkey platform. Paul Heydon, General Partner at London Venture Partners, has joined Downstream’s Board.

“Marketers are looking for more control and transparency when buying mobile inventory and need a turnkey solution that doesn’t take months to implement or require expensive technical resources to maintain,” said Brendan Lyall, Co-Chief Executive Officer at Downstream. “We developed Downstream to give marketers complete control of their programmatic advertising campaigns with a dashboard that requires no coding or customization to integrate and significantly decreases the cost to implement while dramatically increasing the ROI from mobile marketing initiatives.”

The integration of Downstream’s intuitive dashboard allows agencies and in-house marketing teams to directly access inventory on major ad exchanges, leverage first and third-party data securely, target more accurately and use proprietary auto-optimization software and a dynamic bidding algorithm. Marketers can upload their own creative campaigns or use Downstream’s AI-driven creative builder to create and deploy new iterations quickly.

“Downstream’s vision for the future of programmatic advertising places mobile marketers in the driver’s seat, giving them more control than ever before,” said Heydon. “In previously developing and launching Grow Mobile, Downstream’s founders are seasoned experts in delivering highly efficient and scalable advertising solutions to the mobile ecosystem.” was founded in 2017 by mobile marketing experts and technologists Brendan Lyall, A.J. Yeakel, Co-Chief Executive Officers, Minglei Xu, Chief Technology Officer, and Jianfeng Wang, Vice President of Engineering. Lyall, Yeakel and Xu previously founded Grow Mobile, which was acquired by Perion Network in 2014 for $42m.

For more information about Downstream and to register for the beta, please visit

About is building the most scalable, self-serve mobile programmatic advertising solution for the world’s fastest growing businesses. Downstream’s proprietary software allows companies to control mobile RTB with powerful plug-and-play access to in-app traffic on the largest mobile ad exchanges through a single dashboard and with no coding required. Downstream leverages first and third-party data securely to help marketers build scalable campaigns in minutes and at a fraction of the cost. Downstream is headquartered in San Francisco with an office in New York City.

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