EX-1 3 w90151exv1.txt JOINT FILING AGREEMENT DATED SEPTEMBER 24, 2003 Exhibit 1 Joint Filing Agreement The undersigned parties hereby agree that the Schedule 13D filed herewith (and any amendments thereto) relating to the Common Stock of Onvia.com, Inc. is being filed jointly on behalf of each of them with the Securities and Exchange Commission pursuant to Section 13(d) of the Securities Act of 1934, as amended. Dated September 24, 2003 INTERNET CAPITAL GROUP, INC. By: /s/ Suzanne L. Niemeyer ----------------------------------- Suzanne L. Niemeyer Managing Director, General Counsel & Secretary Dated September 24, 2003 ICG HOLDINGS, INC. By: /s/ Suzanne L. Niemeyer ----------------------------------- Suzanne L. Niemeyer Vice President and Secretary Page 9 of 9