Guidance Software Gains Record-breaking Number of New EnCase® Enterprise Customers in 2012

  Guidance Software Gains Record-breaking Number of New EnCase® Enterprise
  Customers in 2012

Company Reports 358 New Customers of the EnCase Enterprise Platform for 2012,
                      with 129 New Customers in Q4 2012

Business Wire

PASADENA, Calif. -- February 7, 2013

Guidance Software, Inc. (NASDAQ:GUID), the World Leader in Digital
Investigations™, reported today that EnCase® Enterprise, the industry-standard
platform for network-wide digital investigations, added 358 new customers in
2012, an increase of 26 percent from 285 in 2011. The company also announced
that it added 129 new customers in the fourth quarter of 2012, which
represents a 33 percent increase over the fourth quarter of 2011.

“EnCase Enterprise is the most powerful solution for discreet, remote digital
investigations and remains best in class because of our continuous investment
in development, making it highly sought after by the world’s largest
organizations,” said Victor Limongelli, president and chief executive officer
of Guidance Software. “Moreover, our customers gain the significant benefit of
being able to rapidly expand their capabilities on top of the EnCase
Enterprise platform with our EnCase® eDiscovery and EnCase® Cybersecurity
products soon after implementation.”

A partial list of new EnCase customers in 2012 includes the following
organizations:

  *Allergan
  *Apple
  *Avon Products
  *Boston Scientific
  *CBS
  *Chesapeake Energy
  *Coach
  *Expedia
  *Federal Reserve – Board of Governors
  *Georgia Institute of Technology
  *GM Financial
  *Henry Schein
  *Intelsat
  *Live Nation
  *National Grid plc
  *New York Life Insurance
  *New York Times
  *Nokia
  *NRG Energy
  *Orbitz
  *PayPal
  *PetSmart
  *Polo Ralph Lauren
  *Praxair
  *Rutgers University
  *Samsung
  *Shaw Group
  *Seagate Technology
  *Telefónica México
  *Thrivent Financial
  *Universal Music Group
  *University of Wisconsin-Madison
  *Vale do Rio Doce
  *Valspar
  *Warner Music Group
  *Whole Foods

About EnCase Enterprise

EnCase Enterprise is the most powerful and easiest-to-use digital
investigations platform for security, internal investigations, and discovery
in the enterprise. Used by more than 65 of the Fortune 100 and numerous
government agencies worldwide, EnCase Enterprise enables remote search,
collection, preservation, and analysis of data from servers and workstations
anywhere on the corporate network without disrupting operations.

About Guidance Software, Inc.

Guidance Software is recognized worldwide as the industry leader in digital
investigative solutions. Its EnCase® platform, with more than 40,000 licenses
distributed worldwide, provides the foundation for government, corporate and
law enforcement organizations to conduct thorough, network-enabled, and
court-validated computer investigations of any kind, such as responding to
e-discovery requests, conducting internal investigations, responding to
regulatory inquiries, or performing data and compliance auditing - all while
maintaining the integrity of the data. The EnCase Enterprise platform is used
by numerous federal, civilian and defense agencies, more than 65 of the
Fortune 100, and thousands attend Guidance Software's renowned training
programs annually. For more information about Guidance Software, visit
www.guidancesoftware.com.

EnCase®, EnScript®, FastBloc®, EnCE®, EnCEP®, CaseCentral®, CaseCentral
eDiscovery Cloud®, Guidance Software™ and Tableau™ are registered trademarks
or trademarks owned by Guidance Software in the United States and other
jurisdictions and may not be used without prior written permission. All other
trademarks and copyrights referenced in this press release are the property of
their respective owners.

GUID-F

Contact:

Guidance Software, Inc.
Alex Andrianopoulos, 626-229-9191
newsroom@guidancesoftware.com