Vocus Announces Results for First Quarter 2011
Company Reports 21% Revenue Growth, Strong Customer Additions and Better Than Expected Earnings

Lanham, MD: April 26, 2011 – Vocus, Inc. (NASDAQ: VOCS), a leading provider of cloud-based PR and marketing software, announced today financial results for the first quarter ended March 31, 2011.

“We are very pleased to have started the year with a strong quarter as revenue, earnings and cash flow all exceeded our expectations,” said Rick Rudman, President and CEO of Vocus, Inc. “We believe our strong financial results reflect the broad-based demand that we are seeing from organizations who want to reach and influence buyers not only through the media but also across social networks and online.”

Financial Highlights

This release includes non-GAAP financial measures. For a description of these non-GAAP financial measures, please refer to section “Use of Non-GAAP Financial Measures” and the accompanying table entitled “Reconciliation of Non-GAAP Measures.”

Business Highlights

Guidance

Vocus is providing, for the first time, guidance for the second quarter and revising guidance for the full year 2011 based on information as of April 26, 2011:

Conference Call Information

Vocus will discuss the financial results and business highlights of the first quarter of 2011 in a conference call at 4:30 p.m. ET, or 1:30 p.m. PT, today. Investors are invited to listen to a live audio webcast of the conference call on the Investor Relations section of the Company’s website at http://onlinepressroom.net/vocus/ir/webcast/. A replay of the webcast will be available approximately one hour after the conclusion of the call and will remain available for 30 calendar days following the conference call. An audio replay of the conference call will also be available approximately two hours after the conclusion of the call. The audio replay will be available until May 10, 2011 at 11:59 p.m. ET and can be accessed by dialing (706) 645-9291 or (800) 642-1687 and entering conference number 31797631.

About Vocus, Inc.

Vocus, Inc. is a leading provider of cloud-based PR and marketing software that helps organizations of all sizes reach and influence buyers across social networks, online and through 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. Vocus is based in Lanham, MD with offices in North America, Europe and Asia. For further information, please visit www.vocus.com or call (800) 345-5572.

Forward-Looking Statement

This release contains “forward-looking” statements that are made pursuant to the Safe Harbor provision of the Private Securities Litigation Reform Act of 1995. These statements 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, risks associated with acquisitions, including our ability to successfully integrate acquired businesses, risks associated with our foreign operations, 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, foreign currency exchange rates and interest rates.

Vocus, Inc. and Subsidiaries

Condensed Consolidated Balance Sheets

(dollars in thousands)

* In accordance with ASC 805, balances as of December 31, 2010 reflect adjustments made during the measurement period to the final purchase price allocation resulting in reductions to goodwill of $617 and to accrued expenses and other liabilities of $70 and $547, respectively.

Vocus, Inc. and Subsidiaries

Consolidated Statements of Operations

(dollars in thousands, except per share data)

Vocus, Inc. and Subsidiaries

Condensed Consolidated Statements of Cash Flows

(dollars in thousands)

Use of Non-GAAP Financial Measures

Vocus provides non-GAAP measures for revenue, income from operations, net income, diluted net income per share and free cash flow as supplemental information.

We define non-GAAP revenue as GAAP revenue adjusted for the impact of the fair value adjustment to deferred revenue related to purchase accounting. Management believes the adjustment is useful to investors as a more accurate measure of our ongoing performance from the acquisitions.

We define non-GAAP income from operations as GAAP income from operations including the impact of non-GAAP revenue and excluding stock-based compensation, amortization of acquired intangible assets, fair value adjustments to contingent consideration and acquisition related expenses.

We define non-GAAP net income as GAAP net income including the impact of non-GAAP revenue and excluding stock-based compensation, amortization of acquired intangible assets, fair value adjustments to contingent consideration including the effect of foreign currencies and acquisition related expenses.

Stock-based compensation included in our GAAP financial results relates to stock option and restricted stock awards. Companies record stock-based compensation by applying varying valuation methodologies and subjective assumptions to different types of equity awards. Amortization of acquired intangible assets included in our GAAP financial results consists of amortization of non-compete agreements, trade names, purchased technology and customer relationships that are not expected to be replaced when fully amortized, as a depreciable tangible asset might. Amortization expense can vary from period to period due to the timing and size of our acquisitions. Our GAAP financial results include adjustments to the fair value of contingent consideration for acquisition earn-outs as of each reporting date from the fair value recorded on the acquisition date. Acquisition related expenses included in our GAAP general and administrative costs consist of legal, accounting and other professional fees incurred during the reporting period in connection with our acquired businesses. Management believes these non-GAAP measures allow management and investors to make meaningful comparisons between our operating results and those of the other companies, as well as provide a consistent comparison of our relative historical financial performance.

We define free cash flow as cash flow from operations less net capital expenditures and capitalized software development costs plus the excess tax benefits from equity awards. Management considers free cash flow to be a liquidity measure which provides useful information to management and investors regarding our ability to generate cash from operations that is available for acquisitions and other investments. Our definition of free cash flow may be different from definitions used by other companies.

Management uses non-GAAP income from operations, non-GAAP net income and free cash flow to evaluate operating performance, determine incentive compensation and to prepare operating budgets and determine the appropriate levels of capital investments. However, management believes that non-GAAP income from operations, non-GAAP net income and free cash flow are subject to material limitations since they may not be indicative of ongoing operating results. Management compensates for the limitations in the use of non-GAAP measures by also utilizing GAAP financial measures and by providing investors with a detailed reconciliation between our GAAP and non-GAAP financial results. Investors are advised to carefully review and consider this information as well as the GAAP financial results that are disclosed in our SEC filings.

Vocus, Inc. and Subsidiaries

Reconciliation of Non-GAAP Measures

(dollars in thousands, except per share data)