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About Guidance Software

At Guidance, we exist to turn chaos and the unknown into order and the known–so that companies and their customers can go about their daily lives as usual without worry or disruption, knowing their most valuable information is safe and secure.

Makers of EnCase®, the gold standard in digital investigations and endpoint data security, Guidance provides a mission-critical foundation of applications that have been deployed on an estimated 34 million endpoints and work in concert with other leading enterprise technologies from companies such as Cisco, Intel, Box, Dropbox, Blue Coat Systems, and LogRhythm.

Our field-tested and court-proven solutions are used with confidence by 78 of the Fortune 100 and hundreds of agencies worldwide.

34 Million Endpoints
Patrick Dennis

Patrick Dennis

President & CEO

Patrick Dennis is the President and Chief Executive Officer for Guidance Software, directing the company’s strategy and operations worldwide. Before joining Guidance Software, Dennis served as Senior Vice President and Chief Operating Officer of EMC’s Cloud Management Division, where he focused on helping enterprise IT groups make hybrid-cloud computing a meaningful part of IT strategy, and was responsible for long-range planning, mergers, and acquisitions, and divisional strategy. Prior to his tenure at EMC, Dennis was Group Vice President of North American Storage Sales for Oracle Corporation, where he led the development of Oracle’s commercial business in North America. Earlier in his career, he held leadership and technical roles at Eastman Kodak. Dennis holds a B.S. in Information Technology from the Rochester Institute of Technology and is a member of the American Economic Association.

Barry Plaga

Barry Plaga


Barry Plaga is Chief Operating and Financial Officer of Guidance Software. He oversees the company's worldwide financial planning and analysis, accounting, treasury and tax functions. Plaga has more than 20 years of financial and operational experience. Prior to joining Guidance Software, he served two years as Vice President of Financial Global Processes at Sun Microsystems, Inc., where he oversaw financial planning and forecasting, finance program management and the finance components of Sun's Oracle ERP project. He joined Sun Microsystems through the acquisition of SeeBeyond Technology Corp., a public software technology company where he served six years as Chief Financial Officer. At SeeBeyond he was also responsible for mergers and acquisitions, legal, information technology, human resources, administration and facilities. Additionally, he helped lead the company through its initial public offering, secondary offering and eventual sale to Sun for nearly $400 million. Prior to SeeBeyond, Plaga held various roles including Chief Financial Officer at Activision, Inc. and Vice President of Finance and Chief Accounting Officer. Plaga received his bachelor’s degree in business administration and master’s degree in accounting from the University of Southern California. He is also a certified public accountant.​

Michael Harris

Michael Harris


Michael Harris is the Chief Marketing Officer for Guidance Software responsible for all global marketing and product marketing efforts for the company and its EnCase® security, e-discovery and forensic investigation products. Harris has led a broad range of businesses from startups to multi-billion dollar public companies. Prior to joining Guidance Software, Harris served as Vice President, Products for j2 Global, a world leader in cloud services where he set the product direction, priorities and roadmap, as well as led merger and acquisition product integrations. Harris also held CEO roles for a number of technology startups while at Idealab, as well as serving as CEO for Adapt Technologies. Before Adapt, he held senior executive leadership roles at Yahoo!’s Overture Services Division, FileNET, and Stac Software.

Ken Basore

Ken Basore

SVP, Product Engineering

Ken Basore is Senior Vice President, Product Engineering for Guidance Software. In this role he oversees all aspects of product engineering for existing and future products. His responsibilities include product requirements definition, product roadmaps, release management, and product readiness (quality, performance, serviceability). With his many years of experience in law enforcement, IT, and forensic investigation, Ken brings to this role a deep understanding of the customer point-of-view. A police officer for 17 years, Basore was responsible for the development of the first Regional Computer Forensics Laboratory in San Diego, California where he supervised 16 investigators from various federal, state and local law enforcement facilities. In 2001, Basore won the "Police Officer of the Year" award from the El Cajon, California Police Department. Basore is a certified Electronic Evidence Collection Specialist, a Federal Bureau of Investigation-Computer Analysis Response Team (CART) forensic examiner and an EnCase Certified Examiner. He is also a member of the High Technology Crime and Investigation Association (HTCIA) and the International Association of Computer Investigative Specialists (IACIS).

Stephanie Urbach

Stephanie Urbach

SVP, Human Resources

Stephanie Urbach is the Senior Vice President, Human Resources for Guidance Software responsible for leading the company’s worldwide human resources organization including employee relations, development and training, recruiting, compensation and benefits. Prior to joining Guidance Software, Ms. Urbach served as a human resources leader for Jacobs Engineering Group, Inc., one of the world's largest providers of technical professional and construction services, where she was responsible for leading the overall human resources function for sales and safety globally. Prior to Jacobs, she spent over 15 years at Avery Dennison in a number of human resources leadership roles, most recently as head of human resources for technology. In this role, Ms. Urbach partnered with the Chief Information Officer to oversee organizational design, talent management, staffing, communications, employee initiatives and change management. Ms. Urbach has been a member of the Society for Human Resource Management since 1988. She earned a Bachelor of Arts in English American Studies from the University of California at Los Angeles.​​

Alfredo Gomez

Alfredo Gomez

SVP, General Counsel & Corporate Secretary

Alfredo Gomez is Senior Vice President, General Counsel, and Corporate Secretary for Guidance Software. He directs worldwide legal operations for Guidance Software, including software licensing, securities and general corporate law. Previously, Gomez served as Deputy General Counsel at Hanmi Bank and General Counsel at the publicly traded EMCORE Corporation. In these positions, he directed and executed on legal strategies in the areas of contracts, litigation, employment, compliance, governance, and securities. Gomez has also held legal positions at j2 Global Communications Inc., Western Digital Corporation, and Stradling Yocca Carlson & Rauth, LLP. He earned his J.D. from the Georgetown University Law Center and a bachelor's degree in economics from Stanford University.

Rasmus Van der Colff

Rasmus Van der Colff

CAO & VP, Finance

Rasmus van der Colff is Vice President Finance and Chief Accounting Officer for Guidance Software. He oversees the company’s worldwide accounting, financial reporting, tax, financial planning and analysis and investor relations functions. Prior to joining Guidance Software, he served as Vice President, Corporate Controller and Chief Accounting Officer for THQ, Inc., where he oversaw worldwide accounting, financial reporting and tax. Prior to THQ he served for two years at Sun Microsystems as Director of Global Accounting, where he was responsible for overseeing the worldwide accounting organization. Previously he served as Vice President Finance and Chief Accounting Officer of SeeBeyond Technology Corporation, overseeing worldwide accounting, financial reporting, tax and workplace resources. Prior to SeeBeyond he served as Vice President Finance for Activision, Inc. and was an auditor with KPMG in South Africa for four years. He is a certified public accountant and holds a graduate degree from the University of South Africa and an undergraduate degree from the University of Pretoria, South Africa.


We love working with gifted, ethical, enthusiastic people. Throughout our company and across our partner and customer communities, we solve problems by collaborating with some of the best minds in security and digital investigations every day. If you’re ready to use your mad skills to make a real difference in the world, take a closer look at Guidance Software. We can do great things together.

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Guidance Software Inc. NASDAQ: GUID
Last Price Change
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Last Updated: 8/17/2017 6:39 AM PST
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Aug 2, 2017
Guidance Software Survey Shows Increased Focus on Endpoint Security Concerns Read More
Jul 26, 2017
Guidance Software Announces Preliminary 2017 Second Quarter Financial Results Read More
Jul 26, 2017
Guidance Enters into Definitive Merger Agreement with OpenText Read More

Contact Us



1055 E. Colorado Blvd.
Pasadena, CA 91106-2375
United States
Toll Free: (866) 229-9199
Main: (626) 229-9191
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