(519) 578-2230 Where are Roberts Onsite’s headquarters? Roberts Onsite’s headquarters are in 209 Manitou Dr, Kitchener, Ontario, N2C 1L4, Canada What is Roberts Onsite’s phone number? Roberts Onsite’s phone number is (519) 578-2230 What is Roberts Onsite’s official website? Roberts Onsite’s official website is //www.robertsonsite.ca