diff --git a/app/models/submitter.rb b/app/models/submitter.rb
index 96e01738..96a02945 100644
--- a/app/models/submitter.rb
+++ b/app/models/submitter.rb
@@ -20,7 +20,7 @@
 #  values        :text             not null
 #  created_at    :datetime         not null
 #  updated_at    :datetime         not null
-#  account_id    :bigint
+#  account_id    :bigint           not null
 #  external_id   :string
 #  submission_id :bigint           not null
 #
diff --git a/db/migrate/20240816072859_populate_submitter_account_id.rb b/db/migrate/20240816072859_populate_submitter_account_id.rb
new file mode 100644
index 00000000..29960068
--- /dev/null
+++ b/db/migrate/20240816072859_populate_submitter_account_id.rb
@@ -0,0 +1,32 @@
+# frozen_string_literal: true
+
+class PopulateSubmitterAccountId < ActiveRecord::Migration[7.1]
+  disable_ddl_transaction
+
+  class MigrationSubmitter < ApplicationRecord
+    self.table_name = 'submitters'
+    belongs_to :submission, class_name: 'MigrationSubmission'
+  end
+
+  class MigrationSubmission < ApplicationRecord
+    self.table_name = 'submissions'
+  end
+
+  def up
+    MigrationSubmitter.where(account_id: nil).preload(:submission).find_each do |submitter|
+      submitter.update_columns(account_id: submitter.submission.account_id)
+    end
+
+    if MigrationSubmitter.exists?(account_id: nil)
+      MigrationSubmitter.where(account_id: nil).preload(:submission).find_each do |submitter|
+        submitter.update_columns(account_id: submitter.submission.account_id)
+      end
+    end
+
+    change_column_null :submitters, :account_id, false
+  end
+
+  def down
+    nil
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 985ae0f8..08f49832 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.1].define(version: 2024_08_16_064633) do
+ActiveRecord::Schema[7.1].define(version: 2024_08_16_072859) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
 
@@ -243,7 +243,7 @@ ActiveRecord::Schema[7.1].define(version: 2024_08_16_064633) do
     t.string "external_id"
     t.text "preferences", null: false
     t.text "metadata", null: false
-    t.bigint "account_id"
+    t.bigint "account_id", null: false
     t.index ["account_id", "id"], name: "index_submitters_on_account_id_and_id"
     t.index ["email"], name: "index_submitters_on_email"
     t.index ["external_id"], name: "index_submitters_on_external_id"