PositiveID Corporation ("PositiveID" or "Company") (OTCQB:PSID), a developer of biological detection and diagnostics solutions, announced today that it will be a featured presenter at the Third Annual Marcum MicroCap Conference on Thursday, May 29, 2014, at the Grand Hyatt Hotel in New York City.

The Company's presentation by William J. Caragol, Chairman and CEO, is scheduled to begin at 3:30 pm EDT and will be available via a live webcast. To access the webcast, please go to http://wsw.com/webcast/marcum2/psid.

The annual Marcum MicroCap Conference is a signature showcase for superior quality, under-followed public companies with less than $500 million in market capitalization.

For more information or to register, please visit the conference website at http://www.marcumllp.com/microcap or download the free official conference app for the iPhone, iPad, or for Android mobile devices in Apple's App Store and the Google Play Market.

About PositiveID Corporation

PositiveID Corporation is an emerging growth company and developer of biological detection systems for America's homeland defense industry as well as rapid biological testing. PositiveID is focused on the development of microfluidic systems for the automated preparation of and performance of biological assays in order to detect biological threats and analyze biological samples. For more information on PositiveID, please visit http://www.PositiveIDCorp.com.

About Marcum LLP

Marcum LLP is one of the largest independent public accounting and advisory services firms in the United States. Ranked #15 nationally, Marcum LLP offers the resources of 1,300 professionals, including over 160 partners in 23 offices throughout the U.S., Grand Cayman, and China. Headquartered in New York City, the Firm's presence runs deep, with full-service offices strategically located in major business markets. Marcum is a member of the Marcum Group, an organization providing a comprehensive range of professional services spanning accounting and advisory, technology solutions, wealth management, and executive and professional recruiting. The Marcum Group companies include Marcum LLP; Marcum Technology LLC; Marcum Search LLC; Marcum Financial Services LLC; Marcum Bernstein & Pinchuk LLP; MarcumBuchanan Associates LLC; and Marcum Cronus Partners LLC. For more information, visit www.marcumllp.com.

Statements about PositiveID's future expectations constitute "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, Section 21E of the Securities Exchange Act of 1934, and as that term is defined in the Private Litigation Reform Act of 1995. Such forward-looking statements involve risks and uncertainties and are subject to change at any time, and PositiveID's actual results could differ materially from expected results. Additional information about these and other factors that could affect the Company's business is set forth in the Company's various filings with the Securities and Exchange Commission, including those set forth in the Company's 10-K filed on April 11, 2014, and 10-Qs filed on May 20, 2013, August 14, 2013, as amended August 19, 2013, and November 19, 2013, under the caption "Risk Factors." The Company undertakes no obligation to update or release any revisions to these forward-looking statements to reflect events or circumstances after the date of this statement or to reflect the occurrence of unanticipated events, except as required by law.

CONTACT: PositiveID Corporation
         Allison Tomek
         561-805-8000
         atomek@positiveidcorp.com