Edited videography of corporate workshops

We are a Training Management Company conducting monthly workshops for different corporate in Kolkata and Bengaluru. The workshops are generally of 3 hours. We would require a recording of such workshops and then edit down the total duration to 1 hour which would finally be broken down into 5-6 files of 8-10 minutes each. These individual edited files shall be used for promotional purpose. Videos has to be of HD quality, professionally made and edited.