diff --git a/decidim-core/lib/decidim/core.rb b/decidim-core/lib/decidim/core.rb
index b1a9ee59e7a16..5c53226198fef 100644
--- a/decidim-core/lib/decidim/core.rb
+++ b/decidim-core/lib/decidim/core.rb
@@ -145,17 +145,29 @@ def self.seed!
     participatory_space_manifests.each do |manifest|
       manifest.seed!
 
-      Organization.all.each do |organization|
-        ContextualHelpSection.set_content(
-          organization,
-          manifest.name,
-          Decidim::Faker::Localized.wrapped("<p>", "</p>") do
-            Decidim::Faker::Localized.sentence(word_count: 15)
-          end
-        )
-      end
+      seed_contextual_help_sections!(manifest)
+    end
+
+    seed_gamification_badges!
+
+    seed_endorsements!
+
+    I18n.available_locales = original_locale
+  end
+
+  def self.seed_contextual_help_sections!(manifest)
+    Organization.all.each do |organization|
+      ContextualHelpSection.set_content(
+        organization,
+        manifest.name,
+        Decidim::Faker::Localized.wrapped("<p>", "</p>") do
+          Decidim::Faker::Localized.sentence(word_count: 15)
+        end
+      )
     end
+  end
 
+  def self.seed_gamification_badges!
     Gamification.badges.each do |badge|
       puts "Setting random values for the \"#{badge.name}\" badge..."
       User.all.find_each do |user|
@@ -166,8 +178,24 @@ def self.seed!
         )
       end
     end
+  end
 
-    I18n.available_locales = original_locale
+  def self.seed_endorsements!
+    resources_types = Decidim.resource_manifests
+                             .map { |resource| resource.attributes[:model_class_name] }
+                             .select { |resource| resource.constantize.include? Decidim::Endorsable }
+
+    resources_types.each do |resource_type|
+      resource_type.constantize.find_each do |resource|
+        # exclude the users that already endorsed
+        users = resource.endorsements.map(&:author)
+        rand(50).times do
+          user = (Decidim::User.all - users).sample
+          Decidim::Endorsement.create!(resource:, author: user)
+          users << user
+        end
+      end
+    end
   end
 
   # Finds all currently loaded Decidim ActiveRecord classes and resets their