diff --git a/app/controllers/admin/commercials_controller.rb b/app/controllers/admin/commercials_controller.rb
index f13b4322..3c694246 100644
--- a/app/controllers/admin/commercials_controller.rb
+++ b/app/controllers/admin/commercials_controller.rb
@@ -49,6 +49,26 @@ module Admin
       end
     end
 
+    ##
+    # Received a file from user
+    # Reads file and creates commercial for event
+    # File content example:
+    # EventID:MyURL
+    def mass_upload
+      errors = Commercial.read_file(params[:file]) if params[:file]
+
+      if errors.all? { |_k, v| v.blank? }
+        flash[:notice] = 'Successfully added commercials.'
+      else
+        errors_text = ''
+        errors_text << 'Unable to find event with ID: ' + errors[:no_event].join(', ') + '. ' if errors[:no_event].any?
+        errors_text << 'There were some errors: ' + errors[:validation_errors].join('. ') if errors[:validation_errors].any?
+
+        flash[:error] = errors_text
+      end
+      redirect_to :back
+    end
+
     private
 
     def commercial_params
diff --git a/app/models/commercial.rb b/app/models/commercial.rb
index 0976fe44..ad9597e4 100644
--- a/app/models/commercial.rb
+++ b/app/models/commercial.rb
@@ -5,7 +5,7 @@ class Commercial < ApplicationRecord
 
   has_paper_trail ignore: [:updated_at], meta: { conference_id: :conference_id }
 
-  validates :url, presence: true
+  validates :url, presence: true, uniqueness: { scope: :commercialable }
   validates :url, format: URI::regexp(%w(http https))
 
   validate :valid_url
@@ -20,6 +20,29 @@ class Commercial < ApplicationRecord
     end
   end
 
+  def self.read_file(file)
+    errors = {}
+    errors[:no_event] = []
+    errors[:validation_errors] = []
+
+    file.read.each_line do |line|
+      # Get the event id (text before :)
+      id = line.match(/:/).pre_match.to_i
+      # Get the commercial url (text after :)
+      url = line.match(/:/).post_match
+      event = Event.find_by(id: id)
+
+      # Go to next event, if the event is not found
+      errors[:no_event] << id && next unless event
+
+      commercial = event.commercials.new(url: url)
+      unless commercial.save
+        errors[:validation_errors] << "Could not create commercial for event with ID #{event.id} (" + commercial.errors.full_messages.to_sentence + ')'
+      end
+    end
+    errors
+  end
+
   private
 
   def valid_url
diff --git a/app/views/admin/events/index.html.haml b/app/views/admin/events/index.html.haml
index f8b58b63..be7abe05 100644
--- a/app/views/admin/events/index.html.haml
+++ b/app/views/admin/events/index.html.haml
@@ -4,37 +4,60 @@
       %h1
         Events
         = "(#{@events.length})" if @events.any?
-        .pull-right
+
+        .btn-group.pull-right
+          %button.btn.btn-primary{ 'data-toggle' => 'modal', 'data-target' => '#mass-commercials-modal', title: 'Mass import of commercials for events' }
+            Add Commercials
+
           - if can? :create, Event
-            =link_to 'Add Event', new_admin_conference_program_event_path(@conference.short_title), class: 'button btn btn-default btn-info'
+            = link_to 'Add Event', new_admin_conference_program_event_path(@conference.short_title), class: 'button btn btn-default btn-info'
+
           - if can? :read, Event
             .btn-group
-              .btn-group
-                %button.btn.btn-default.dropdown-toggle{ 'data-toggle' => 'dropdown', type: 'button', class: 'btn btn-success' }
-                  Export PDF
-                  %span.caret
-                %ul.dropdown-menu{ role: 'menu' }
-                  %li= link_to 'All Events', admin_conference_program_events_path(@conference.short_title, format: :pdf, event_export_option: 'all')
-                  %li= link_to 'Confirmed Events', admin_conference_program_events_path(@conference.short_title, format: :pdf, event_export_option: 'confirmed')
-                  %li= link_to 'All Events with Comments', admin_conference_program_events_path(@conference.short_title, format: :pdf, event_export_option: 'all_with_comments')
-              .btn-group
-                %button.btn.btn-default.dropdown-toggle{ 'data-toggle' => 'dropdown', type: 'button', class: 'btn btn-success' }
-                  Export CSV
-                  %span.caret
-                %ul.dropdown-menu{ role: 'menu' }
-                  %li= link_to 'All', admin_conference_program_events_path(@conference.short_title, format: :csv, event_export_option: 'all')
-                  %li= link_to 'Confirmed', admin_conference_program_events_path(@conference.short_title, format: :csv, event_export_option: 'confirmed')
-                  %li= link_to 'All with Comments', admin_conference_program_events_path(@conference.short_title, format: :csv, event_export_option: 'all_with_comments')
-              .btn-group
-                %button.btn.btn-default.dropdown-toggle{ 'data-toggle' => 'dropdown', type: 'button', class: 'btn btn-success' }
-                  Export XLS
-                  %span.caret
-                %ul.dropdown-menu{ role: 'menu' }
-                  %li= link_to 'All', admin_conference_program_events_path(@conference.short_title, format: :xlsx, event_export_option: 'all')
-                  %li= link_to 'Confirmed', admin_conference_program_events_path(@conference.short_title, format: :xlsx, event_export_option: 'confirmed')
-                  %li= link_to 'All with Comments', admin_conference_program_events_path(@conference.short_title, format: :xlsx, event_export_option: 'all_with_comments')
+              %button.btn.btn-default.dropdown-toggle{ 'data-toggle' => 'dropdown', type: 'button', class: 'btn btn-success' }
+                Export PDF
+                %span.caret
+              %ul.dropdown-menu{ role: 'menu' }
+                %li= link_to 'All Events', admin_conference_program_events_path(@conference.short_title, format: :pdf, event_export_option: 'all')
+                %li= link_to 'Confirmed Events', admin_conference_program_events_path(@conference.short_title, format: :pdf, event_export_option: 'confirmed')
+                %li= link_to 'All Events with Comments', admin_conference_program_events_path(@conference.short_title, format: :pdf, event_export_option: 'all_with_comments')
+            .btn-group
+              %button.btn.btn-default.dropdown-toggle{ 'data-toggle' => 'dropdown', type: 'button', class: 'btn btn-success' }
+                Export CSV
+                %span.caret
+              %ul.dropdown-menu{ role: 'menu' }
+                %li= link_to 'All', admin_conference_program_events_path(@conference.short_title, format: :csv, event_export_option: 'all')
+                %li= link_to 'Confirmed', admin_conference_program_events_path(@conference.short_title, format: :csv, event_export_option: 'confirmed')
+                %li= link_to 'All with Comments', admin_conference_program_events_path(@conference.short_title, format: :csv, event_export_option: 'all_with_comments')
+            .btn-group
+              %button.btn.btn-default.dropdown-toggle{ 'data-toggle' => 'dropdown', type: 'button', class: 'btn btn-success' }
+                Export XLS
+                %span.caret
+              %ul.dropdown-menu{ role: 'menu' }
+                %li= link_to 'All', admin_conference_program_events_path(@conference.short_title, format: :xlsx, event_export_option: 'all')
+                %li= link_to 'Confirmed', admin_conference_program_events_path(@conference.short_title, format: :xlsx, event_export_option: 'confirmed')
+                %li= link_to 'All with Comments', admin_conference_program_events_path(@conference.short_title, format: :xlsx, event_export_option: 'all_with_comments')
+
       %p.text-muted
         All the submissions of your speakers
+
+.modal#mass-commercials-modal
+  .modal-dialog
+    .modal-content
+      .modal-header
+        %h1 Add commercials to events
+        .text-muted
+          Upload your file with data in the following format:
+          %b Event_ID:Commercial_Link
+          , eg.
+          %br
+          %b 11:https://youtube.com/myvideo
+
+      .modal-body
+        = semantic_form_for '', url: mass_upload_commercials_admin_conference_program_path(@conference.short_title), method: :post do |f|
+          = f.input 'file', as: :file
+          .modal-footer
+            = f.submit 'Add', class: 'btn btn-primary'
 .row
   .col-md-4
     = render partial: 'admin/conferences/doughnut_chart', locals: { title: 'Events state', data: @event_distribution }
diff --git a/config/routes.rb b/config/routes.rb
index 33a92a48..4e2fca74 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -98,6 +98,7 @@ Osem::Application.routes.draw do
         end
         resources :event_types
         resources :difficulty_levels
+        post 'mass_upload_commercials' => 'commercials#mass_upload'
         resources :events do
           member do
             patch :toggle_attendance
diff --git a/spec/factories/commercials.rb b/spec/factories/commercials.rb
index 2578d1cd..cf865348 100644
--- a/spec/factories/commercials.rb
+++ b/spec/factories/commercials.rb
@@ -2,7 +2,7 @@
 
 FactoryGirl.define do
   factory :commercial do
-    url 'https://www.youtube.com/watch?v=BTTygyxuGj8'
+    sequence(:url) { |n| "https://www.youtube.com/watch?v=BTTygyxuGj#{n}" }
 
     factory :conference_commercial do
       association :commercialable, factory: :conference
diff --git a/spec/features/commercials_spec.rb b/spec/features/commercials_spec.rb
index 65efa0b6..d460a725 100644
--- a/spec/features/commercials_spec.rb
+++ b/spec/features/commercials_spec.rb
@@ -98,7 +98,8 @@ feature Commercial do
     scenario 'does not update a commercial of an event with invalid data', feature: true, versioning: true, js: true do
       commercial = create(:commercial,
                           commercialable_id: event.id,
-                          commercialable_type: 'Event')
+                          commercialable_type: 'Event',
+                          url: 'https://www.youtube.com/watch?v=BTTygyxuGj8')
       visit edit_conference_program_proposal_path(conference.short_title, event.id)
       click_link 'Commercials'
       fill_in "commercial_url_#{commercial.id}", with: 'invalid_commercial_url'