We cannot certify you so you will need to select a certification body to check that you have implemented Iso27001. This involves 2 audits, the first call a phase 1 audit, where you are reviewed to see how well you comply with the standard. At this audit you are generally not expected to have everything in place. Then there is a Stage 2 audit where you will receive your certification if successful. For the stage 2 audit you need to be meeting the standard required for certification. If you do not meet the standard at the Stage 2 audit you may be given a short period of time, 2-3 weeks, to get the missing elements in place.