diff --git a/Gemfile.lock b/Gemfile.lock
index ea758e178..62912070b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,9 +6,10 @@ PATH
       countries (~> 5.5.0)
       defra_ruby_address (~> 0.1.0)
       defra_ruby_alert (~> 2.2.1)
+      defra_ruby_companies_house
       defra_ruby_email (~> 1.3.0)
       defra_ruby_govpay
-      defra_ruby_validators (~> 2.6)
+      defra_ruby_validators (~> 3.0)
       high_voltage (~> 3.1.2)
       jbuilder (~> 2.11.5)
       mongo_session_store (~> 3.2.1)
@@ -143,6 +144,9 @@ GEM
       rest-client (~> 2.0)
     defra_ruby_alert (2.2.1)
       airbrake
+    defra_ruby_companies_house (1.0.0)
+      i18n
+      rest-client (~> 2.0)
     defra_ruby_email (1.3.0)
       notifications-ruby-client
       rails
@@ -152,8 +156,9 @@ GEM
     defra_ruby_style (0.3.0)
       rubocop (>= 1.0, < 2.0)
     defra_ruby_template (5.4.1)
-    defra_ruby_validators (2.6.0)
+    defra_ruby_validators (3.0.0)
       activemodel
+      defra_ruby_companies_house
       i18n
       matrix
       os_map_ref
@@ -271,7 +276,7 @@ GEM
     parser (3.2.2.4)
       ast (~> 2.4.1)
       racc
-    phonelib (0.8.6)
+    phonelib (0.10.1)
     protocol-hpack (1.4.2)
     protocol-http (0.25.0)
     protocol-http1 (0.16.0)
@@ -400,6 +405,7 @@ GEM
       simplecov_json_formatter (~> 0.1)
     simplecov-html (0.12.3)
     simplecov_json_formatter (0.1.4)
+    simpleidn (0.2.3)
     spring (4.1.3)
     spring-commands-rspec (1.0.4)
       spring (>= 0.9.1)
@@ -428,8 +434,9 @@ GEM
     uk_postcode (2.1.8)
     unaccent (0.4.0)
     unicode-display_width (2.5.0)
-    validates_email_format_of (1.7.2)
-      i18n
+    validates_email_format_of (1.8.2)
+      i18n (>= 0.8.0)
+      simpleidn
     vcr (6.2.0)
     web-console (4.2.1)
       actionview (>= 6.0.0)
diff --git a/app/controllers/waste_carriers_engine/check_registered_company_name_forms_controller.rb b/app/controllers/waste_carriers_engine/check_registered_company_name_forms_controller.rb
index 953fec862..b5446b9c7 100644
--- a/app/controllers/waste_carriers_engine/check_registered_company_name_forms_controller.rb
+++ b/app/controllers/waste_carriers_engine/check_registered_company_name_forms_controller.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require "defra_ruby_companies_house"
+require "defra_ruby/companies_house"
 
 module WasteCarriersEngine
   class CheckRegisteredCompanyNameFormsController < ::WasteCarriersEngine::FormsController
@@ -26,7 +26,8 @@ def transient_registration_attributes
     end
 
     def company_name
-      DefraRubyCompaniesHouse.new(@transient_registration.company_no).company_name
+      company_details = DefraRuby::CompaniesHouse::API.run(company_number: @transient_registration.company_no)
+      company_details[:company_name]
     end
   end
 end
diff --git a/app/forms/waste_carriers_engine/check_registered_company_name_form.rb b/app/forms/waste_carriers_engine/check_registered_company_name_form.rb
index 84fa300dc..3580c4b9a 100644
--- a/app/forms/waste_carriers_engine/check_registered_company_name_form.rb
+++ b/app/forms/waste_carriers_engine/check_registered_company_name_form.rb
@@ -8,11 +8,11 @@ class CheckRegisteredCompanyNameForm < ::WasteCarriersEngine::BaseForm
     validates :temp_use_registered_company_details, "waste_carriers_engine/yes_no": true
 
     def registered_company_name
-      companies_house_service.company_name
+      @registered_company_name ||= companies_house_details[:company_name]
     end
 
     def registered_office_address_lines
-      companies_house_service.registered_office_address_lines
+      @registered_office_address_lines ||= companies_house_details[:registered_office_address]
     end
 
     def submit(params)
@@ -26,8 +26,8 @@ def submit(params)
 
     private
 
-    def companies_house_service
-      @_companies_house_service ||= DefraRubyCompaniesHouse.new(company_no)
+    def companies_house_details
+      @_companies_house_details ||= DefraRuby::CompaniesHouse::API.run(company_number: company_no)
     end
   end
 end
diff --git a/app/models/concerns/waste_carriers_engine/can_use_renewing_registration_workflow.rb b/app/models/concerns/waste_carriers_engine/can_use_renewing_registration_workflow.rb
index 3d0fe504f..ee349ece3 100644
--- a/app/models/concerns/waste_carriers_engine/can_use_renewing_registration_workflow.rb
+++ b/app/models/concerns/waste_carriers_engine/can_use_renewing_registration_workflow.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require "defra_ruby_companies_house"
+require "defra_ruby/companies_house"
 
 module WasteCarriersEngine
   # rubocop:disable Metrics/ModuleLength
@@ -258,9 +258,11 @@ def company_status_invalid?
       return false if company_no.blank? || overseas?
 
       begin
-        company_status = DefraRubyCompaniesHouse.new(company_no).company_status
+        company_status = DefraRuby::CompaniesHouse::API.run(company_number: company_no)[:company_status]
         !%w[active voluntary-arrangement].include?(company_status)
-      rescue StandardError
+      rescue StandardError => e
+        Rails.logger.error "Error checking company status: #{e}"
+        Airbrake.notify(e)
         true
       end
     end
diff --git a/app/services/waste_carriers_engine/refresh_companies_house_name_service.rb b/app/services/waste_carriers_engine/refresh_companies_house_name_service.rb
index 673bf6aec..56e84a2a7 100644
--- a/app/services/waste_carriers_engine/refresh_companies_house_name_service.rb
+++ b/app/services/waste_carriers_engine/refresh_companies_house_name_service.rb
@@ -1,14 +1,15 @@
 # frozen_string_literal: true
 
-require "defra_ruby_companies_house"
+require "defra_ruby/companies_house"
 
 module WasteCarriersEngine
   class RefreshCompaniesHouseNameService < WasteCarriersEngine::BaseService
     def run(reg_identifier:)
       registration = Registration.find_by(reg_identifier: reg_identifier)
 
-      company_name = DefraRubyCompaniesHouse.new(registration.company_no).company_name
-      registration.registered_company_name = company_name
+      company_details = DefraRuby::CompaniesHouse::API.run(company_number: registration.company_no)
+
+      registration.registered_company_name = company_details[:company_name]
       registration.companies_house_updated_at = Time.current
       registration.save!
 
diff --git a/lib/defra_ruby_companies_house.rb b/lib/defra_ruby_companies_house.rb
deleted file mode 100644
index f863ba2c9..000000000
--- a/lib/defra_ruby_companies_house.rb
+++ /dev/null
@@ -1,55 +0,0 @@
-# frozen_string_literal: true
-
-require "rest-client"
-
-class DefraRubyCompaniesHouse
-  def initialize(company_no)
-    @company_url = "#{Rails.configuration.companies_house_host}#{format_company_number(company_no)}"
-    @api_key = Rails.configuration.companies_house_api_key
-  end
-
-  def company_name
-    load_company unless @company
-
-    @company[:company_name]
-  end
-
-  def registered_office_address_lines
-    load_company unless @company
-
-    address = @company[:registered_office_address]
-
-    [
-      address[:address_line_1],
-      address[:address_line_2],
-      address[:locality],
-      address[:postal_code]
-    ].compact
-  end
-
-  def company_status
-    load_company unless @company
-
-    @company[:company_status]
-  end
-
-  private
-
-  def format_company_number(company_number)
-    company_number&.to_s&.upcase&.rjust(8, "0")
-  end
-
-  def load_company
-    @company =
-      JSON.parse(
-        RestClient::Request.execute(
-          method: :get,
-          url: @company_url,
-          user: @api_key,
-          password: ""
-        )
-      ).deep_symbolize_keys
-  rescue RestClient::ResourceNotFound, RestClient::NotFound
-    raise StandardError, "Failed to load company"
-  end
-end
diff --git a/lib/waste_carriers_engine.rb b/lib/waste_carriers_engine.rb
index aa19677bd..fc05b6143 100644
--- a/lib/waste_carriers_engine.rb
+++ b/lib/waste_carriers_engine.rb
@@ -37,13 +37,13 @@ def initialize
     end
 
     def companies_house_host=(value)
-      DefraRuby::Validators.configure do |configuration|
+      DefraRuby::CompaniesHouse.configure do |configuration|
         configuration.companies_house_host = value
       end
     end
 
     def companies_house_api_key=(value)
-      DefraRuby::Validators.configure do |configuration|
+      DefraRuby::CompaniesHouse.configure do |configuration|
         configuration.companies_house_api_key = value
       end
     end
diff --git a/spec/dummy/config/application.rb b/spec/dummy/config/application.rb
index abf5f718e..463448a65 100644
--- a/spec/dummy/config/application.rb
+++ b/spec/dummy/config/application.rb
@@ -53,7 +53,7 @@ class Application < Rails::Application
     config.airbrake_key = ENV["WCRS_RENEWALS_AIRBRAKE_PROJECT_KEY"] || "dummy"
 
     # Companies House config
-    config.companies_house_host = ENV["WCRS_COMPANIES_HOUSE_URL"] || "https://api.companieshouse.gov.uk/company/"
+    config.companies_house_host = ENV["WCRS_COMPANIES_HOUSE_URL"] || "https://api.companieshouse.gov.uk/"
     config.companies_house_api_key = ENV["WCRS_COMPANIES_HOUSE_API_KEY"]
 
     # Paths
diff --git a/spec/dummy/config/initializers/waste_carriers_engine.rb b/spec/dummy/config/initializers/waste_carriers_engine.rb
index 93f0205a6..bcf1af4f4 100644
--- a/spec/dummy/config/initializers/waste_carriers_engine.rb
+++ b/spec/dummy/config/initializers/waste_carriers_engine.rb
@@ -2,7 +2,7 @@
 
 WasteCarriersEngine.configure do |config|
   # Companies House API config
-  config.companies_house_host = ENV["WCRS_COMPANIES_HOUSE_URL"] || "https://api.companieshouse.gov.uk/company/"
+  config.companies_house_host = ENV["WCRS_COMPANIES_HOUSE_URL"] || "https://api.companieshouse.gov.uk/"
   config.companies_house_api_key = ENV["WCRS_COMPANIES_HOUSE_API_KEY"]
 
   # Airbrake config
diff --git a/spec/forms/waste_carriers_engine/check_registered_company_name_forms_spec.rb b/spec/forms/waste_carriers_engine/check_registered_company_name_forms_spec.rb
index c48bab2db..c3df53b9d 100644
--- a/spec/forms/waste_carriers_engine/check_registered_company_name_forms_spec.rb
+++ b/spec/forms/waste_carriers_engine/check_registered_company_name_forms_spec.rb
@@ -1,18 +1,23 @@
 # frozen_string_literal: true
 
 require "rails_helper"
-require "defra_ruby_companies_house"
+require "defra_ruby/companies_house"
 
 module WasteCarriersEngine
   RSpec.describe CheckRegisteredCompanyNameForm do
     let(:registered_company_name) { Faker::Company.name }
     let(:company_address) { ["10 Downing St", "Horizon House", "Bristol", "BS1 5AH"] }
-    let(:companies_house_service) { instance_double(DefraRubyCompaniesHouse) }
+    let(:companies_house_api) { instance_double(DefraRuby::CompaniesHouse::API) }
+    let(:companies_house_api_response) do
+      {
+        company_name: registered_company_name,
+        registered_office_address: company_address
+      }
+    end
 
     before do
-      allow(DefraRubyCompaniesHouse).to receive(:new).and_return(companies_house_service)
-      allow(companies_house_service).to receive(:company_name).and_return(registered_company_name)
-      allow(companies_house_service).to receive(:registered_office_address_lines).and_return(company_address)
+      allow(DefraRuby::CompaniesHouse::API).to receive(:new).and_return(companies_house_api)
+      allow(companies_house_api).to receive(:run).and_return(companies_house_api_response)
     end
 
     describe "#submit" do
diff --git a/spec/forms/waste_carriers_engine/use_trading_name_forms_spec.rb b/spec/forms/waste_carriers_engine/use_trading_name_forms_spec.rb
index 4e4a7750f..665c48b06 100644
--- a/spec/forms/waste_carriers_engine/use_trading_name_forms_spec.rb
+++ b/spec/forms/waste_carriers_engine/use_trading_name_forms_spec.rb
@@ -1,7 +1,6 @@
 # frozen_string_literal: true
 
 require "rails_helper"
-require "defra_ruby_companies_house"
 
 module WasteCarriersEngine
   RSpec.describe UseTradingNameForm do
diff --git a/spec/lib/defra_ruby_companies_house_spec.rb b/spec/lib/defra_ruby_companies_house_spec.rb
deleted file mode 100644
index 21ede140a..000000000
--- a/spec/lib/defra_ruby_companies_house_spec.rb
+++ /dev/null
@@ -1,135 +0,0 @@
-# frozen_string_literal: true
-
-require "rails_helper"
-require "defra_ruby_companies_house"
-
-RSpec.describe DefraRubyCompaniesHouse do
-
-  let(:valid_company_no) { "00987654" }
-  let(:short_company_no) { "1987654" }
-  let(:invalid_company_no) { "-" }
-
-  before do
-    # stub all calls to fail first...
-    stub_request(:get, /#{Rails.configuration.companies_house_host}*/).to_return(
-      status: 404
-    )
-    # ... then add a stub to cover valid company_no values
-    stub_request(:get, /#{Rails.configuration.companies_house_host}[A-Z\d]{8}/).to_return(
-      status: 200,
-      body: File.read("./spec/fixtures/files/companies_house_response.json")
-    )
-  end
-
-  describe "#company_name" do
-    subject(:company_name_for_number) { described_class.new(company_no).company_name }
-
-    context "with an invalid company number" do
-      let(:company_no) { invalid_company_no }
-
-      it "raises a standard error" do
-        expect { company_name_for_number }.to raise_error(StandardError)
-      end
-    end
-
-    context "with a valid company number" do
-      let(:company_no) { valid_company_no }
-
-      it "returns the company name" do
-        expect(company_name_for_number).to eq "BOGUS LIMITED"
-      end
-    end
-
-    context "with a short company number" do
-      let(:company_no) { short_company_no }
-
-      it "returns the company name" do
-        expect(company_name_for_number).to eq "BOGUS LIMITED"
-      end
-    end
-
-    context "with a lower case company number" do
-      let(:company_no) { "xy12345z" }
-
-      it "returns the company name" do
-        expect(company_name_for_number).to eq "BOGUS LIMITED"
-      end
-    end
-
-    context "when the request times out" do
-      it "raises a standard error" do
-        expect { company_name_for_number }.to raise_error(StandardError)
-      end
-    end
-
-    context "when the request returns an error" do
-      before { stub_request(:get, /#{Rails.configuration.companies_house_host}*/).to_raise(SocketError) }
-
-      it "raises an exception" do
-        expect { company_name_for_number }.to raise_error(StandardError)
-      end
-    end
-  end
-
-  describe "#registered_office_address_lines" do
-    subject(:address_for_company_number) { described_class.new(company_no).registered_office_address_lines }
-
-    context "with an invalid company number" do
-      let(:company_no) { invalid_company_no }
-
-      it "raises a standard error" do
-        expect { address_for_company_number }.to raise_error(StandardError)
-      end
-    end
-
-    context "with a valid company number" do
-      let(:company_no) { valid_company_no }
-
-      it "returns the address lines" do
-        expect(address_for_company_number).to eq ["R House", "Middle Street", "Thereabouts", "HD1 2BN"]
-      end
-    end
-
-    context "with a short company number" do
-      let(:company_no) { short_company_no }
-
-      it "returns the address lines" do
-        expect(address_for_company_number).to eq ["R House", "Middle Street", "Thereabouts", "HD1 2BN"]
-      end
-    end
-  end
-
-  describe "#company_status" do
-    subject(:company_status) { described_class.new(company_no).company_status }
-
-    context "with an invalid company number" do
-      let(:company_no) { invalid_company_no }
-
-      it "raises a standard error" do
-        expect { company_status }.to raise_error(StandardError)
-      end
-    end
-
-    context "when the request times out" do
-      it "raises a standard error" do
-        expect { company_status }.to raise_error(StandardError)
-      end
-    end
-
-    context "when the request returns an error" do
-      before { stub_request(:get, /#{Rails.configuration.companies_house_host}*/).to_raise(SocketError) }
-
-      it "raises a standard error" do
-        expect { company_status }.to raise_error(StandardError)
-      end
-    end
-
-    context "with a valid company number" do
-      let(:company_no) { valid_company_no }
-
-      it "returns the expected status" do
-        expect(company_status).to eq "active"
-      end
-    end
-  end
-end
diff --git a/spec/models/waste_carriers_engine/renewing_registration_workflow/renewal_information_form_spec.rb b/spec/models/waste_carriers_engine/renewing_registration_workflow/renewal_information_form_spec.rb
index 5ef4b7c01..18f093103 100644
--- a/spec/models/waste_carriers_engine/renewing_registration_workflow/renewal_information_form_spec.rb
+++ b/spec/models/waste_carriers_engine/renewing_registration_workflow/renewal_information_form_spec.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 require "rails_helper"
-require "defra_ruby_companies_house"
+require "defra_ruby/companies_house"
 
 module WasteCarriersEngine
   RSpec.describe RenewingRegistration do
@@ -17,13 +17,19 @@ module WasteCarriersEngine
     let(:tier) { WasteCarriersEngine::Registration::UPPER_TIER }
     let(:business_type) { nil }
     let(:location) { "england" }
-    let(:defra_ruby_companies_house) { instance_double(DefraRubyCompaniesHouse) }
+    let(:companies_house_api) { instance_double(DefraRuby::CompaniesHouse::API) }
+    let(:companies_house_api_reponse) do
+      {
+        company_status:
+      }
+    end
+
     let(:company_status) { "active" }
     let(:company_number) { "12345678" }
 
     before do
-      allow(DefraRubyCompaniesHouse).to receive(:new).and_return(defra_ruby_companies_house)
-      allow(defra_ruby_companies_house).to receive(:company_status).and_return(company_status)
+      allow(DefraRuby::CompaniesHouse::API).to receive(:new).and_return(companies_house_api)
+      allow(companies_house_api).to receive(:run).and_return(companies_house_api_reponse)
     end
 
     describe "#workflow_state" do
@@ -119,7 +125,7 @@ module WasteCarriersEngine
 
           context "when Companies House Api returns an error" do
             before do
-              allow(defra_ruby_companies_house).to receive(:company_status).and_raise(StandardError)
+              allow(companies_house_api).to receive(:run).and_raise(StandardError)
             end
 
             context "when the business type is limitedCompany with non-UK company number" do
diff --git a/spec/requests/waste_carriers_engine/check_registered_company_name_forms_spec.rb b/spec/requests/waste_carriers_engine/check_registered_company_name_forms_spec.rb
index 08ac34544..f6ca792c4 100644
--- a/spec/requests/waste_carriers_engine/check_registered_company_name_forms_spec.rb
+++ b/spec/requests/waste_carriers_engine/check_registered_company_name_forms_spec.rb
@@ -1,19 +1,24 @@
 # frozen_string_literal: true
 
 require "rails_helper"
-require "defra_ruby_companies_house"
+require "defra_ruby/companies_house"
 
 module WasteCarriersEngine
   RSpec.describe "CheckRegisteredCompanyNameForms" do
 
     let(:company_name) { Faker::Company.name }
     let(:company_address) { ["10 Downing St", "Horizon House", "Bristol", "BS1 5AH"] }
-    let(:companies_house_service) { instance_double(DefraRubyCompaniesHouse) }
+    let(:companies_house_api) { instance_double(DefraRuby::CompaniesHouse::API) }
+    let(:companies_house_api_reponse) do
+      {
+        company_name:,
+        registered_office_address: company_address
+      }
+    end
 
     before do
-      allow(DefraRubyCompaniesHouse).to receive(:new).and_return(companies_house_service)
-      allow(companies_house_service).to receive(:company_name).and_return(company_name)
-      allow(companies_house_service).to receive(:registered_office_address_lines).and_return(company_address)
+      allow(DefraRuby::CompaniesHouse::API).to receive(:new).and_return(companies_house_api)
+      allow(companies_house_api).to receive(:run).and_return(companies_house_api_reponse)
     end
 
     include_examples "GET flexible form", "check_registered_company_name_form"
@@ -42,7 +47,7 @@ module WasteCarriersEngine
 
         context "when the company house API is down" do
           before do
-            allow(companies_house_service).to receive(:company_name).and_raise(StandardError)
+            allow(companies_house_api).to receive(:run).and_raise(StandardError)
           end
 
           it "raises an error" do
diff --git a/spec/requests/waste_carriers_engine/renewal_information_forms_spec.rb b/spec/requests/waste_carriers_engine/renewal_information_forms_spec.rb
index ad851cfcb..f000fce21 100644
--- a/spec/requests/waste_carriers_engine/renewal_information_forms_spec.rb
+++ b/spec/requests/waste_carriers_engine/renewal_information_forms_spec.rb
@@ -1,15 +1,20 @@
 # frozen_string_literal: true
 
 require "rails_helper"
-require "defra_ruby_companies_house"
+require "defra_ruby/companies_house"
 
 module WasteCarriersEngine
   RSpec.describe "RenewalInformationForms" do
-    let(:defra_ruby_companies_house) { instance_double(DefraRubyCompaniesHouse) }
+    let(:defra_ruby_companies_api) { instance_double(DefraRuby::CompaniesHouse::API) }
+    let(:companies_house_api_response) do
+      {
+        company_status: "active"
+      }
+    end
 
     before do
-      allow(DefraRubyCompaniesHouse).to receive(:new).and_return(defra_ruby_companies_house)
-      allow(defra_ruby_companies_house).to receive(:company_status).and_return("active")
+      allow(DefraRuby::CompaniesHouse::API).to receive(:new).and_return(defra_ruby_companies_api)
+      allow(defra_ruby_companies_api).to receive(:run).and_return(companies_house_api_response)
     end
 
     include_examples "GET flexible form", "renewal_information_form"
diff --git a/spec/services/waste_carriers_engine/refresh_companies_house_name_service_spec.rb b/spec/services/waste_carriers_engine/refresh_companies_house_name_service_spec.rb
index 423cf20b5..f6986ffed 100644
--- a/spec/services/waste_carriers_engine/refresh_companies_house_name_service_spec.rb
+++ b/spec/services/waste_carriers_engine/refresh_companies_house_name_service_spec.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 
 require "rails_helper"
-require "defra_ruby_companies_house"
+require "defra_ruby/companies_house"
 
 RSpec.describe WasteCarriersEngine::RefreshCompaniesHouseNameService do
 
@@ -11,12 +11,16 @@
   let(:registration) { create(:registration, :has_required_data, registered_company_name: old_registered_name) }
   let(:reg_identifier) { registration.reg_identifier }
   let(:companies_house_name) { new_registered_name }
-  let(:drch_instance) { instance_double(DefraRubyCompaniesHouse) }
+  let(:companies_house_api) { instance_double(DefraRuby::CompaniesHouse::API) }
+  let(:companies_house_api_reponse) do
+    {
+      company_name: companies_house_name
+    }
+  end
 
   before do
-    allow(DefraRubyCompaniesHouse).to receive(:new).and_return(drch_instance)
-    allow(drch_instance).to receive(:load_company).and_return(true)
-    allow(drch_instance).to receive(:company_name).and_return(companies_house_name)
+    allow(DefraRuby::CompaniesHouse::API).to receive(:new).and_return(companies_house_api)
+    allow(companies_house_api).to receive(:run).and_return(companies_house_api_reponse)
   end
 
   context "with no previous companies house name" do
diff --git a/waste_carriers_engine.gemspec b/waste_carriers_engine.gemspec
index bdd3d2a59..e4b999966 100644
--- a/waste_carriers_engine.gemspec
+++ b/waste_carriers_engine.gemspec
@@ -48,7 +48,7 @@ Gem::Specification.new do |s|
   s.add_dependency "high_voltage", "~> 3.1.2"
 
   # Validations
-  s.add_dependency "defra_ruby_validators", "~> 2.6"
+  s.add_dependency "defra_ruby_validators", "~> 3.0"
   s.add_dependency "uk_postcode", "~> 2.1.8"
 
   s.add_dependency "defra_ruby_govpay"
@@ -60,6 +60,9 @@ Gem::Specification.new do |s|
   # EA Address Facade v1)
   s.add_dependency "defra_ruby_address", "~> 0.1.0"
 
+  # # Used to access the Companies House API for company details validation
+  s.add_dependency "defra_ruby_companies_house"
+
   # Used as part of testing. When enabled adds a /last-email route from which
   # details of the last email sent by the app can be accessed
   s.add_dependency "defra_ruby_email", "~> 1.3.0"