Vocus Named to Software Magazine’s 29th Annual Software 500 for 12th Consecutive Year

Provider of Cloud-Based Marketing and PR Software Ranked as one of the World’s Largest Software Companies

Beltsville, MD -- September 29, 2011 -- Vocus, Inc. (NASDAQ: VOCS), a leading provider of cloud-based marketing and PR software, today announced its inclusion in Software Magazine’s Software 500 ranking of the world’s largest software and service providers, now in its 29th year.

“It’s great to be recognized as one of the largest software companies in the world for the 12th consecutive year,” says Bill Wagner, chief operating officer at Vocus.  “Yet despite our consistent record of growth we feel like we are still in the early stages of penetrating a very large market for cloud-based marketing and PR software.” 

“The 2011 Software 500 results show that revenue growth in the software and services industry was healthy, with total Software 500 revenue of $541.5 billion worldwide for 2010, representing approximately 10 percent growth from the previous year’s list,” says John P. Desmond, editor of Software Magazine and Softwaremag.com.

The Software 500 is a revenue-based ranking of the world’s largest software and services suppliers, targeting medium to large enterprises, their IT professionals, software developers, and business managers involved in software and services purchasing.

The ranking is based on total worldwide software and services revenue for 2010. This includes revenue from software licenses, maintenance and support, training, and software-related services and consulting. Suppliers are not ranked on their total corporate revenue, since many have other lines of business, such as hardware. The financial information was gathered by a survey prepared by King Content Co. and posted at www.softwaremag.com, as well as from public documents.

About Vocus

Vocus (Nasdaq: VOCS) is a leading provider of cloud-based marketing and PR software that helps organizations of all sizes reach and influence buyers across social networks, online and through the media. Vocus provides a suite of software for social media, content marketing and media relations, creating a comprehensive solution for our customers looking to generate awareness, build their reputation and increase sales in today’s customer-led buying cycle.  Vocus is used by more than 30,000 organizations worldwide and is available in seven languages. For more information, please visit www.vocus.com or call (800) 345-5572.

About Digital Software Magazine and Softwaremag.com

Digital Software Magazine, the Software Decision Journal, has been a brand name in the high-tech industry for more than 35 years. Softwaremag.com, its Web counterpart, is the online catalog to enterprise software and the home of the Software 500 ranking of the world’s largest software and services companies. Software Magazine and Softwaremag.com are owned and operated by King Content Co.

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This release contains "forward-looking" statements that are made pursuant to the Safe Harbor provisions of the Private Securities Litigation Reform Act of 1995. These are statements that are predictive in nature, that depend upon or refer to future events or conditions, or that include words such as "may," "will," "expects," "projects," "anticipates," "estimates," "believes," "intends," "plans," "should," "seeks," and similar expressions. This press release contains forward-looking statements relating to, among other things, Vocus’ expectations and assumptions concerning future financial performance. Forward-looking statements involve known and unknown risks and uncertainties that may cause actual future results to differ materially from those projected or contemplated in the forward-looking statements. Forward-looking statements may be significantly impacted by certain risks and uncertainties described in Vocus' filings with the Securities and Exchange Commission.

The risks and uncertainties referred to above include, but are not limited to, risks associated with possible fluctuations in our operating results and rate of growth, our history of operating losses, interruptions or delays in our service or our Web hosting, our business model, breach of our security measures, the emerging market in which we operate, our relatively limited operating history, our ability to hire, retain and motivate our employees and manage our growth, competition, our ability to continue to release and gain customer acceptance of new and improved versions of our service, successful customer deployment and utilization of our services, fluctuations in the number of shares outstanding, our ability to integrate acquisitions, foreign currency exchange rates and interest rates.