diff --git a/site/.env.template b/site/.env.template
index 100c65a98..362828d0f 100644
--- a/site/.env.template
+++ b/site/.env.template
@@ -14,3 +14,6 @@ MATOMO_TOKEN=
 ATINTERNET_API_ACCESS_KEY=
 ATINTERNET_API_SECRET_KEY=
 ZAMMAD_API_SECRET_KEY=
+
+# Valeurs optionnelles
+COMPANY_SEARCH_HOST=https://search-recherche-entreprises.fabrique.social.gouv.fr
diff --git a/site/source/api/fabrique-social.ts b/site/source/api/fabrique-social.ts
index 8041573be..cad568f7e 100644
--- a/site/source/api/fabrique-social.ts
+++ b/site/source/api/fabrique-social.ts
@@ -1,22 +1,13 @@
-const isSIREN = (input: string) => /^[\s]*([\d][\s]*){9}$/.exec(input)
-const isSIRET = (input: string) => /^[\s]*([\d][\s]*){14}$/.exec(input)
-
 export { fetchCompanyDetails } from './sirene'
 
 export async function searchDenominationOrSiren(value: string) {
-	if (isSIRET(value)) {
-		value = value.replace(/[\s]/g, '').slice(0, 9)
-	}
-	if (isSIREN(value)) {
-		return [{ siren: value }]
-	}
 	return searchFullText(value)
 }
 
 /*
  * Fields are documented in https://www.sirene.fr/static-resources/doc/Description%20fichier%20StockUniteLegaleHistorique.pdf?version=1.33.1
  */
-type FabriqueSocialEntreprise = {
+export type FabriqueSocialEntreprise = {
 	activitePrincipale: string
 	caractereEmployeurUniteLegale?: 'N' | 'O'
 	conventions: Array<{
@@ -49,17 +40,18 @@ type FabriqueSocialSearchPayload = {
 	entreprises: Array<FabriqueSocialEntreprise>
 }
 
-const makeSearchUrl = (query: string) =>
-	`https://search-recherche-entreprises.fabrique.social.gouv.fr/api/v1/search?query=${query}&open=false&convention=false&employer=false&ranked=false&limit=10`
+const COMPANY_SEARCH_HOST =
+	process.env.COMPANY_SEARCH_HOST ||
+	'https://search-recherche-entreprises.fabrique.social.gouv.fr'
 
-export type Entreprise = {
-	siren: string
-	address?: string
-	denomination?: string
-}
+const makeSearchUrl = (query: string, limit: number) =>
+	`${COMPANY_SEARCH_HOST}/api/v1/search?query=${query}&open=false&convention=false&employer=false&ranked=false&limit=${limit}`
 
-async function searchFullText(text: string): Promise<Array<Entreprise> | null> {
-	const response = await fetch(makeSearchUrl(text))
+async function searchFullText(
+	text: string,
+	limit = 10
+): Promise<Array<FabriqueSocialEntreprise> | null> {
+	const response = await fetch(makeSearchUrl(text, limit))
 
 	if (!response.ok) {
 		return null
diff --git a/site/webpack.common.js b/site/webpack.common.js
index 256a47770..632b2976c 100644
--- a/site/webpack.common.js
+++ b/site/webpack.common.js
@@ -129,16 +129,14 @@ module.exports.default = {
 	},
 	plugins: [
 		new EnvironmentPlugin({
+			COMPANY_SEARCH_HOST:
+				'https://search-recherche-entreprises.fabrique.social.gouv.fr',
 			EN_BASE_URL: 'http://localhost:8080/infrance',
 			FR_BASE_URL: 'http://localhost:8080/mon-entreprise',
 			AT_INTERNET_SITE_ID: '',
-		}),
-		new EnvironmentPlugin({
 			ALGOLIA_APP_ID: '',
 			ALGOLIA_SEARCH_KEY: '',
 			ALGOLIA_INDEX_PREFIX: '',
-		}),
-		new EnvironmentPlugin({
 			GITHUB_REF: '',
 			GITHUB_HEAD_REF: '',
 			GITHUB_SHA: '',