InnerWorkings, Inc. Partners with Group O

Business Wire, April 10, 2008

CHICAGO -- InnerWorkings, Inc. (NASDAQ: INWK), a leading provider of managed print and promotional solutions to corporate clients in the United States, announced today that it has signed an enterprise agreement with Group O Inc., one of the largest Hispanic-owned service providers in the nation.

As part of the agreement, InnerWorkings will begin providing several of Group O's Fortune 500 clients with integrated print procurement and management solutions. This partnership will include comprehensive sourcing and category management activities.

"InnerWorkings is pleased to be a partner of one of the world's most prestigious service providers," said Steven E. Zuccarini, Chief Executive Officer of InnerWorkings. "We share Group O's commitment to improving diversity sourcing as this is a critical business imperative in today's environment."

"Our company is always seeking innovative solutions to deliver enterprise value to our corporate clients. We are excited about our partnership which significantly extends our capabilities in providing high quality, cost effective print procurement and management solutions that our clients demand," said Gregg Ontiveros, Chief Executive Officer of Group O. "We are confident that this partnership will be mutually beneficial."

About InnerWorkings, Inc.

Chicago-based InnerWorkings, Inc. (NASDAQ: INWK) is a leading provider of managed print and promotional solutions to corporate clients in the United States. With proprietary technology, an extensive supplier network and domain expertise, the Company procures, manages and delivers printed products as part of a comprehensive outsourced enterprise solution. Based in Chicago with numerous other offices in the United States, InnerWorkings procures printed products for clients across a wide range of industries, such as advertising, consumer products, publishing and retail. For more information on InnerWorkings, visit: www.iwprint.com.

About Group O

Milan, IL-based Group O is one of North America's largest Hispanic-owned providers of third party logistics (3PL) and business process outsourcing solutions in marketing, packaging and supply chain. For more information on Group O, visit: www.groupo.com.

Forward-Looking Statements

This release contains statements relating to future results. These statements are forward-looking statements under the federal securities laws. We can give no assurance that any future results discussed in these statements will be achieved. Any forward-looking statements represent our views only as of today and should not be relied upon as representing our views as of any subsequent date. These statements are subject to a variety of risks and uncertainties that could cause our actual results to differ materially from the statements contained in this release. For a discussion of important factors that could affect our actual results, please refer to our SEC filings, including the "Risk Factors" section of the Form 10-K we recently filed with the SEC.

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