Adecco Group revenue fell 4.5 percent in the first two months of the third quarter on an organic basis and adjusted for business days. The company, which ranks as the world’s largest staffing firm, reported the information today at its Investor Days 2012 conference in Paris.

Revenue development in July was slightly weaker, mainly driven by France and Japan. However, revenue growth in North America continued a positive trend and has accelerated slightly since June.

Adecco’s management team reported the company is on track to reach an EBITA margin of over 5.5 percent midterm.