EXHIBIT 23.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the use in this Amendment No. 2 to Registration Statement on Form S-1 (No. 333-134088) of our report dated May 9, 2006 (except for paragraph 10 of Note 17, as to which the date is June 30, 2006) relating to the consolidated financial statements and financial statement schedule of ORBCOMM Inc. appearing in the Prospectus, which is part of such Registration Statement, and to the reference to us under the heading "Experts" in such Prospectus. /s/ DELOITTE & TOUCHE LLP New York, New York August 30, 2006