Exhibit 12.1

Supplemental Financial Schedule II

TeleCommunication Systems, Inc.
Valuation and Qualifying Accounts
(amounts in thousands)

Column A	Column B		Column C		Column D			Column E
	Balance		Additions,
	Beginning		Costs, and					Balance End of
Description	of Year		Expenses		Deductions			Year
Year ended December 31, 2010
Allowance for doubtful accounts	$	389	$	175	$	(117	)	$	447
Income tax valuation allowance	$	698	$	—	$	—		$	698
Year ended December 31, 2009
Allowance for doubtful accounts	$	285	$	234	$	(130	)	$	389
Income tax valuation allowance	$	—	$	698	$	—		$	698
Year ended December 31, 2008
Allowance for doubtful accounts	$	265	$	193	$	(173	)	$	285
Income tax valuation allowance	$	45,053	$	—	$	(45,053	)	$	—