diff --git a/app/controllers/merge_requests_controller.rb b/app/controllers/merge_requests_controller.rb
index 5e40279b3..cb6a150fc 100644
--- a/app/controllers/merge_requests_controller.rb
+++ b/app/controllers/merge_requests_controller.rb
@@ -13,12 +13,37 @@ class MergeRequestsController < ApplicationController
   end
 
   def organisations
+    @merge_request = MergeRequest.find(params[:merge_request_id])
+    @answer_options = answer_options
+    @merging_organisations_list = [@merge_request.requesting_organisation]
+  end
+
+  def update_organisations
+    @merge_request = MergeRequest.find(params[:merge_request_id])
+    if @merge_request.merging_organisation_ids
+      @merge_request.merging_organisation_ids << params[:merge_request][:merging_organisation]
+      @merge_request.save!
+    else
+      @merge_request.update!(merging_organisation_ids:[params[:merge_request][:merging_organisation]])
+    end
+    @answer_options = answer_options
+    @merging_organisations_list = [@merge_request.requesting_organisation] + @merge_request.merging_organisations
+    render "organisations"
   end
 
   private
 
+  def answer_options
+    answer_options = { "" => "Select an option" }
+
+    Organisation.all.pluck(:id, :name).each do |organisation|
+      answer_options[organisation[0]] = organisation[1]
+    end
+    answer_options
+  end
+  
   def merge_request_params
-    required_params = {}
+    required_params = params.fetch(:merge_request, {}).permit(:requesting_organisation)
 
     required_params[:requesting_organisation] = current_user.organisation
     required_params
diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index 0a8f74716..009292c7f 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -1,3 +1,7 @@
 class MergeRequest < ApplicationRecord
   belongs_to :requesting_organisation, class_name: "Organisation"
+
+  def merging_organisations
+    Organisation.where(id: merging_organisation_ids)
+  end
 end
diff --git a/app/views/merge_requests/organisations.html.erb b/app/views/merge_requests/organisations.html.erb
index e69de29bb..a72b848c7 100644
--- a/app/views/merge_requests/organisations.html.erb
+++ b/app/views/merge_requests/organisations.html.erb
@@ -0,0 +1,47 @@
+<% title = "Tell us if your organisation is merging" %>
+<% content_for :title, title %>
+<%# <%= govuk_back_link href: merge_request_organisation_path %>
+<h2 class="govuk-heading-l">Tell us if your organisation is merging</h2>
+
+<div class="govuk-grid-row">
+  <div class="govuk-grid-column-two-thirds-from-desktop">
+   <p class="govuk-body">Which organisations are merging?</p>
+
+<%= form_with model: @merge_request, url: merge_request_organisations_path, method: :patch do |f| %>
+  <%= f.govuk_error_summary %>
+  <%= render partial: "organisation_relationships/related_organisation_select_question", locals: {
+    field: :merging_organisation,
+    question: Form::Question.new("", { "answer_options" => @answer_options }, nil),
+    f:,
+  } %>
+  <%= f.govuk_submit "Add organisation", classes: "govuk-button--secondary" %>
+  <%= govuk_table do |table| %>
+    <%= table.body do |body| %>
+        <%= body.row do |row| %>
+            <% row.cell(text: @merge_request.requesting_organisation.name) %>
+            <% row.cell(html_attributes: {
+                scope: "row",
+                class: "govuk-!-text-align-right",
+                }) %>
+        <% end %>
+    <% end %>
+  <% @merge_request.merging_organisations&.each do |merging_organisation| %>
+      <%= table.body do |body| %>
+        <%= body.row do |row| %>
+          <% row.cell(text: merging_organisation.name) %>
+          <% row.cell(html_attributes: {
+            scope: "row",
+            class: "govuk-!-text-align-right",
+          }) do %>
+            <%= govuk_link_to("Remove", merge_request_organisations_path) %>
+          <% end %>
+        <% end %>
+      <% end %>
+    <% end %>
+  <% end %>
+   <%= govuk_details(summary_text: "Can't find the managing agent you're looking for?") do %>
+      <p>List other organisations that are part of the merge but not registered on CORE.</li>
+  <% end %>
+<% end %>
+<%= govuk_button_link_to "Continue", "#", button: true %>
+</div>
\ No newline at end of file
diff --git a/config/routes.rb b/config/routes.rb
index 80647c28d..c35509437 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -126,6 +126,7 @@ Rails.application.routes.draw do
   resources :merge_requests, path: "/merge-request" do   
     post "merge-request", to: "merge_request#create_merge_request"
     get "organisations", to: "merge_requests#organisations"
+    patch "organisations", to: "merge_requests#update_organisations"
   end
 
   resources :lettings_logs, path: "/lettings-logs" do
diff --git a/db/migrate/20230412111338_add_merge_requests_table.rb b/db/migrate/20230412111338_add_merge_requests_table.rb
index 356cd473d..ee588b81e 100644
--- a/db/migrate/20230412111338_add_merge_requests_table.rb
+++ b/db/migrate/20230412111338_add_merge_requests_table.rb
@@ -2,7 +2,7 @@ class AddMergeRequestsTable < ActiveRecord::Migration[7.0]
   def change
     create_table :merge_requests do |t|
       t.integer :requesting_organisation_id
-      t.integer :merging_organisations, array: true
+      t.integer :merging_organisation_ids, array: true
       t.timestamps
     end
   end
diff --git a/db/schema.rb b/db/schema.rb
index ffd9b7e3a..7113f240a 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -356,7 +356,7 @@ ActiveRecord::Schema[7.0].define(version: 2023_04_12_143245) do
 
   create_table "merge_requests", force: :cascade do |t|
     t.integer "requesting_organisation_id"
-    t.integer "merging_organisations", array: true
+    t.integer "merging_organisation_ids", array: true
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
   end