Trumball, Mahoning & Columbiana Counties* Trumball County 280 N. Park Ave, Warren, OH Phone: (330) 675-3279) * Mahoning County/Boardman Plaza 141 Boardman-Canfield Rd, Boardman, OH Phone: (330) 965-1STP(1787) *Columbiana County 7860 Lincole Place, Lisbon, OH Phone: (330_ 420-WORK (9675). Job Seeker Services:* Online Job-matching System* Career Counseling* Resume Help* Training/EducationEmployer Services:* Online Job Posting* Recruitment* Applicant Screening* Labor Market Information