Exhibit A JOINT FILING UNDERTAKINGJoint Filing Undertaking • June 17th, 2005 • Onvia Inc • Services-business services, nec
Contract Type FiledJune 17th, 2005 Company IndustryThe undersigned, being duly authorized thereunto, hereby execute this agreement as an exhibit to this Schedule 13D to evidence the agreement of the below-named parties, in accordance with the rules promulgated pursuant to the Securities Exchange Act of 1934, to file this Schedule jointly on behalf of each such party.