TSYS (MM)

TeleCommunication Systems, Inc. (TCS) (NASDAQ: TSYS), a world leader in highly reliable and secure mobile communication technology, today announced that it has achieved company-wide ISO 27001 certification, the highest internationally accepted standard for Information Security Management Systems (ISMS). TCS is one of only about 300 North American companies to earn this certification to date.

To meet ISO 27001 standards, a company must show it has a systematic and ongoing approach to managing sensitive company and customer information. TCS has implemented the prescribed ISO standards to ensure a secure environment and work processes that enable it to protect its intellectual property and assets; meet contractual security obligations; and establish a robust risk assessment/treatment framework.

The certification is a key indicator of TCS' program to protect vital customer data from a wide range of cyber threats and vulnerabilities that can lead to data loss. It provides third-party verification that the company's ISMS conforms to a standard that helps protect the integrity of customers' information assets. ISO 27001 certification also gives TCS, its customers, shareholders and partners added confidence that TCS subscribes to the best information security practices in the industry.

"This ISO 27001 certification is a reflection of TCS' commitment to the quality of its information security management system," said Drew Morin, senior vice president and chief technology officer of TCS. "Successfully completing the rigorous certification process demonstrates TCS' effort to safeguard the information assets and intellectual property of our company and our clients."

Respected in countries worldwide, the International Organization for Standardization (ISO) develops and publishes standards that establish best practices across a variety of industries. The ISO 27001 document provides the latest requirements for an ISMS, helping companies to proactively identify, manage, and reduce the range of threats to which information is subjected.

National Quality Assurance, USA, granted the certification after ensuring that TCS provided a process approach framework to properly allocate resources, review processes, and improve its management systems, which ultimately improves the company as a whole.

"TCS' certification was one of the larger and more holistic U.S. implementations we have seen," said Timothy Woodcome, conformity assessment director of NQA, USA, one of the largest and most respected ISO registrars in the world. "Many organizations pursue ISO 27001 certification for a narrow scope of implementation initially, but rarely for an entire corporation."

To maintain its certification, which is valid for three years, TCS maintains an ongoing internal audit program, and third-party auditors conduct annual surveillance audits at all major TCS sites.

About TeleCommunication Systems, Inc. TeleCommunication Systems, Inc. (TCS) (NASDAQ: TSYS) is a world leader in highly reliable and secure mobile communication technology. TCS infrastructure forms the foundation for market-leading solutions in E9-1-1, text messaging, commercial location and deployable wireless communications. TCS is at the forefront of new mobile cloud computing services, providing wireless applications for navigation, hyper-local search, asset tracking, social applications and telematics. Millions of consumers around the world use TCS wireless apps as a fundamental part of their daily lives. Government agencies utilize TCS' cybersecurity expertise, professional services, and highly secure deployable satellite solutions for mission-critical communications. Headquartered in Annapolis, MD, TCS maintains technical, service and sales offices around the world. To learn more about emerging and innovative wireless technologies, visit www.telecomsys.com.

Except for the historical information contained herein, this news release contains forward-looking statements as defined within Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities and Exchange Act of 1934, as amended. These statements are subject to risks and uncertainties and are based upon TCS' current expectations and assumptions that if incorrect would cause actual results to differ materially from those anticipated. Risks include without limitation those detailed from time to time in the Company's SEC reports, including the report on Form 10-K for the year ended December 31, 2010, and Form 10-Q for the quarter ended March 31, 2011.

Existing and prospective investors are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. The Company undertakes no obligation to update or revise the information in this press release, whether as a result of new information, future events or circumstances, or otherwise.

Company Contact: TeleCommunication Systems, Inc. Meredith Allen 410-295-1865 Email Contact Media Contact: Welz & Weisel Communications Evan Weisel 703-218-3555 Email Contact Investor Relations: Liolios Group, Inc. Scott Liolios 949-574-3860 Email Contact