Yieldex, which provides advanced inventory management and forecasting technology solutions for addressable media, announced today the close of its Series B round of financing. The financing round of $8.5 million was led by Madrona Venture Group. New investor Amazon.com and prior investors Sequel Venture Partners and First Round Capital also participated in the B round.

Yieldex also announced that they are moving their company headquarters from Boulder, Colorado to New York City. This will situate them at the center of the digital media ecosystem.

“Yieldex technology addresses several major pain points for the ad sales and operations organizations of major publishers, creating value from day one,” said Scott Jacobson, Principal at Madrona Venture Group. “In a fundamentally different and better way, the company is solving problems that have plagued the industry for more than a decade. We have been especially impressed by the market interest in Yieldex’s DynamicIQ^TM platform and the strength of the management team.”

“As a publisher of interactive advertising we understand the challenges associated with inventory management,” said Jeff Blackburn, Senior Vice President at Amazon.com. “We believe Yieldex has built an innovative piece of technology that will move the industry forward.”

The Amazon.com investment comes on the heels of Yieldex having won the top award in the Amazon Web Services Start-up Challenge in November, for their unique use of cloud computing to provide robust inventory analytics.

"An investment of this scope is obviously validating for us, and it prepares us to withstand the vagaries of this economy," said Tom Shields, Yieldex's CEO. "This gives us the ability to attract top talent and continue to develop new products on our DynamicIQ platform to further increase yield and efficiency for our premier customers like Martha Stewart Living Omnimedia, Inc. We are also excited about moving headquarters to New York, to more effectively serve the publisher community, many of who are already giving us extremely favorable feedback."

Yieldex provides accurate revenue, inventory and availability forecasting, eliminates manual spreadsheets, increases transparency of data across the organization and provides fact-based data for use in decision making. Yieldex’s Patent-pending, cloud-enabled DynamicIQ™ platform powers hyper-targeted inventory availability forecasts, campaign scenario planning, and advanced business intelligence through one comprehensive user interface, giving executives the transparency and insight needed to maximize inventory yield and revenue.

Madrona Venture Group, (www.madrona.com), has been investing in early-stage technology companies in the Pacific Northwest since 1995 and has been privileged to play a role in some of the region's most successful technology ventures. The firm invests predominately in seed and Series A rounds across the information technology spectrum including consumer Internet, commercial software and services, digital media and advertising, networking and infrastructure, and wireless. Madrona currently manages nearly $700 million and was an early investor in companies such as Amazon.com, Farecast.com, Classmates.com, and World Wide Packets.

Yieldex, Inc. (www.yieldex.com), the leader in advertising inventory management, forecasting, and yield optimization solutions, provides the digital media industry with visual tools for efficiently managing addressable advertising. Our patent-pending cloud-enabled DynamicIQ™ platform powers hyper-target inventory forecasts, campaign scenario planning, and advanced business intelligence, giving executives and operations the transparency and insight needed to maximize inventory yield and revenue. Founded in 2007 by industry veterans from NetGravity and Matchlogic, Yieldex is privately held and has offices in New York, NY and Boulder, CO.