diff --git a/script/bootstrap-signal-id.rb b/script/bootstrap-signal-id.rb
new file mode 100755
index 000000000..7618e8988
--- /dev/null
+++ b/script/bootstrap-signal-id.rb
@@ -0,0 +1,117 @@
+#!/usr/bin/env ruby
+
+require_relative "../config/environment"
+
+ActiveRecord::Base.logger = Logger.new(File::NULL)
+
+class BootstrapSignalId
+  def initialize(dry_run: false)
+    @dry_run = dry_run
+  end
+
+  def run
+    SignalId::Database.on_master do
+      ApplicationRecord.with_each_tenant do |tenant|
+        puts "\n# tenant: #{tenant}"
+
+        next unless check_account_preconditions
+        create_signal_id_account if Account.first.queenbee_id.nil?
+
+        create_signal_id_users
+      end
+    end
+  end
+
+  def check_account_preconditions
+    unless Account.count == 1
+      puts "There are #{Account.count} accounts, but exactly one is expected."
+      false
+    else
+      true
+    end
+  end
+
+  def create_signal_id_account
+    owner = SignalId::Identity.find_by_email_address!("kevin@37signals.com")
+    print_identity("New owner is:", owner)
+
+    unless @dry_run
+      qbattr = queenbee_account_attributes(owner)
+      queenbee_account = Queenbee::Remote::Account.create!(qbattr)
+
+      signal_id_account = SignalId::Account.find_by!(queenbee_id: queenbee_account.id)
+      signal_id_account.update_column :subdomain, ApplicationRecord.current_tenant
+
+      account = Account.first
+      account.queenbee_id = queenbee_account.id
+      account.name = ApplicationRecord.current_tenant
+      account.save!
+    end
+  end
+
+  def create_signal_id_users
+    signal_account = Account.first.signal_account
+
+    User.find_each do |user|
+      if !user.system? && user.signal_user_id.nil?
+        signal_identities = SignalId::Identity.where(email_address: user.email_address)
+        if signal_identities.length > 1
+          puts "Multiple identities found for #{user.email_address}:"
+          signal_identities.each { |identity| print_identity("  - ", identity) }
+          signal_identity = signal_identities.first
+        elsif signal_identities.length == 1
+          signal_identity = signal_identities.first
+          print_identity("Identity for #{user.email_address}:", signal_identity)
+        else
+          puts "No identity found for #{user.name} (#{user.email_address})"
+          signal_identity = nil
+        end
+
+        if signal_identity
+          unless @dry_run
+            signal_user = SignalId::User.find_or_create_by!(identity: signal_identity, account: signal_account)
+
+            user.signal_user_id = signal_user.id
+            user.save!
+          end
+        end
+      end
+    end
+  end
+
+  def print_identity(message = "Identity:", identity)
+    pad = " " * message.length
+    puts "#{message} #{identity.name} (#{identity.email_address})"
+    puts "#{pad    } ID: #{identity.id}"
+    puts "#{pad    } Username: #{identity.username}"
+  end
+
+  def queenbee_account_attributes(signal_identity)
+    {
+      skip_remote: true, # Fizzy creates its own local account
+      product_name: "fizzy",
+      name: account_name,
+      owner_identity_id: signal_identity.id,
+      trial: false,
+      subscription: subscription_attributes,
+      remote_request: request_attributes
+    }
+  end
+
+  def subscription_attributes
+    subscription = FreeV1Subscription
+    { name: subscription.to_param, price: subscription.price }
+  end
+
+  def request_attributes
+    { user_agent: "script/bootstrap-signal-id.rb" }
+  end
+
+  def account_name
+    name = ApplicationRecord.current_tenant
+    name += " (Beta)" if Rails.env.beta?
+    name
+  end
+end
+
+BootstrapSignalId.new(dry_run: false).run