Datawatch (DWCH) 8-K Changes in Registrant's Certifying Accountant

EXHIBIT 16.1

December 23, 2013

Securities and Exchange Commission

100 F Street, N.E.

Washington, DC 20549

Commissioners:

We have read the statements made by Datawatch Corporation under Item 4.01 of its Form 8-K dated December 20, 2013. We agree with the statements concerning our Firm in such Form 8-K; we are not in a position to agree or disagree with other statements of Datawatch Corporation contained therein.

Very truly yours,

/s/ Marcumllp

Marcumllp