diff --git a/api/src/controllers/iframe.ts b/api/src/controllers/iframe.ts
index 123162b6..ad7428f0 100644
--- a/api/src/controllers/iframe.ts
+++ b/api/src/controllers/iframe.ts
@@ -236,9 +236,9 @@ const buildMissionFilters = (
     }
   }
 
-  const organizationNames = normalizeToArray(query.organization);
-  if (organizationNames?.length) {
-    filters.organizationName = organizationNames;
+  const organizationClientIds = normalizeToArray(query.organization);
+  if (organizationClientIds?.length) {
+    filters.organizationClientId = organizationClientIds;
   }
 
   const actions = normalizeToArray(query.action);
diff --git a/api/src/services/widget-mission.ts b/api/src/services/widget-mission.ts
index 26bed48e..2f503653 100644
--- a/api/src/services/widget-mission.ts
+++ b/api/src/services/widget-mission.ts
@@ -7,7 +7,7 @@ import type { MissionRecord, MissionSearchFilters, MissionSelect } from "@/types
 import { buildWhere, missionService } from "./mission";
 import publisherOrganizationService from "./publisher-organization";
 
-type Bucket = { key: string; doc_count: number };
+type Bucket = { key: string; doc_count: number; label?: string };
 
 type PublisherOrganizationTuple = {
   publisherId: string;
@@ -40,7 +40,7 @@ const buildWidgetWhere = (widget: WidgetRecord, filters: MissionSearchFilters):
 const isPlainObject = (value: unknown): value is Record<string, unknown> => typeof value === "object" && value !== null && !Array.isArray(value) && !(value instanceof Date);
 
 /**
- * Builds a mission condition from `(publisherId, organizationClientId)` tuples.
+ * Builds a mission condition from `(publisherId, clientId)` tuples.
  * Returns either one condition or an `OR` of conditions; empty input matches nothing.
  */
 const buildMissionConditionFromPublisherOrganizationTuples = (tuples: PublisherOrganizationTuple[]): Prisma.MissionWhereInput => {
@@ -58,7 +58,7 @@ const buildMissionConditionFromPublisherOrganizationTuples = (tuples: PublisherO
 
   const conditions = Array.from(byPublisher.entries()).map(([publisherId, clientIds]) => ({
     publisherId,
-    organizationClientId: { in: Array.from(clientIds) },
+    publisherOrganization: { clientId: { in: Array.from(clientIds) } },
   }));
 
   return conditions.length === 1 ? conditions[0] : { OR: conditions };
@@ -221,9 +221,14 @@ const aggregateWidgetAggs = async (
   const formatOrganization = async () => {
     const orgRows = await aggregateMissionField("publisherOrganizationId");
     const orgIds = orgRows.map((row) => row.key);
-    const orgs = orgIds.length ? await publisherOrganizationService.findMany({ ids: orgIds }, { select: { id: true, name: true } }) : [];
-    const orgById = new Map(orgs.map((org) => [org.id, org.name ?? ""]));
-    return orgRows.map((row) => ({ key: orgById.get(row.key) ?? "", doc_count: row.doc_count })).filter((row) => row.key);
+    const orgs = orgIds.length ? await publisherOrganizationService.findMany({ ids: orgIds }, { select: { id: true, name: true, clientId: true } }) : [];
+    const orgById = new Map(orgs.map((org) => [org.id, { name: org.name ?? "", clientId: org.clientId ?? "" }]));
+    return orgRows
+      .map((row) => {
+        const org = orgById.get(row.key);
+        return { key: org?.clientId ?? "", doc_count: row.doc_count, label: org?.name ?? "" };
+      })
+      .filter((row) => row.key);
   };
 
   const result: any = {};
diff --git a/api/tests/integration/api/iframe/search.test.ts b/api/tests/integration/api/iframe/search.test.ts
index 1360130a..98d74559 100644
--- a/api/tests/integration/api/iframe/search.test.ts
+++ b/api/tests/integration/api/iframe/search.test.ts
@@ -201,17 +201,17 @@ describe("GET /iframe/:id/search", () => {
       expect(response.body.data[0].title).toContain("Environnement");
     });
 
-    it("should filter by organization name", async () => {
-      const response = await request(app).get(`/iframe/${widget.id}/search`).query({ organization: "Green Org" }).expect(200);
+    it("should filter by organization client ID", async () => {
+      const response = await request(app).get(`/iframe/${widget.id}/search`).query({ organization: "green-org-1" }).expect(200);
 
       expect(response.body.ok).toBe(true);
-      expect(response.body.total).toBeGreaterThanOrEqual(0);
+      expect(response.body.total).toBe(1);
     });
 
-    it("should support multiple organization names", async () => {
+    it("should support multiple organization client IDs", async () => {
       const response = await request(app)
         .get(`/iframe/${widget.id}/search`)
-        .query({ organization: ["Green Org", "Edu Org"] })
+        .query({ organization: ["green-org-1", "edu-org-1"] })
         .expect(200);
 
       expect(response.body.total).toBe(2);
diff --git a/widget/components/ComboxFilter.tsx b/widget/components/ComboxFilter.tsx
index 583e81cd..b2333b72 100644
--- a/widget/components/ComboxFilter.tsx
+++ b/widget/components/ComboxFilter.tsx
@@ -2,8 +2,8 @@ import { usePlausible } from "next-plausible";
 import { useEffect, useRef, useState } from "react";
 import { RiArrowDownSLine, RiCheckFill, RiSearchLine } from "react-icons/ri";
 
-import useStore from "@/utils/store";
 import { FilterOption } from "@/types";
+import useStore from "@/utils/store";
 
 interface ComboboxFilterProps {
   options: FilterOption[];
@@ -120,7 +120,7 @@ const ComboboxFilter = ({
   };
 
   return (
-    <div className="relative w-full min-w-[6rem]" ref={ref}>
+    <div className="relative w-full min-w-24" ref={ref}>
       <label htmlFor={id} className="sr-only">
         {placeholder}
       </label>
@@ -131,7 +131,7 @@ const ComboboxFilter = ({
         id={id}
         aria-label={placeholder}
         aria-expanded={show}
-        className={`select relative truncate text-left ${!values || values.length === 0 ? "!text-[#666666]" : ""}`}
+        className={`select relative truncate text-left ${!values || values.length === 0 ? "text-[#666666]!" : ""}`}
         onClick={() => setShow(!show)}
         onKeyDown={handleButtonKeyDown}
       >
diff --git a/widget/components/FiltersBenevolat.tsx b/widget/components/FiltersBenevolat.tsx
index 35ad7861..d6290a50 100644
--- a/widget/components/FiltersBenevolat.tsx
+++ b/widget/components/FiltersBenevolat.tsx
@@ -50,7 +50,7 @@ const FiltersBenevolat = ({ widget, apiUrl, values, total, onChange, show, onSho
         const remote = data.remote.filter((b) => b.key === "full" || b.key === "possible");
         const presentiel = data.remote.filter((b) => b.key === "no");
         const newOptions: FilterOptions = {
-          organizations: data.organization.map((b) => ({ value: b.key, count: b.doc_count, label: b.key })),
+          organizations: data.organization.map((b) => ({ value: b.key, count: b.doc_count, label: b.label || b.key })),
           domains: data.domain.map((b) => ({ value: b.key, count: b.doc_count, label: DOMAINS[b.key] ? DOMAINS[b.key].label : b.key })),
           departments: data.department.map((b) => ({
             value: b.key === "" ? "none" : b.key,
diff --git a/widget/next-env.d.ts b/widget/next-env.d.ts
index 19709046..7996d352 100644
--- a/widget/next-env.d.ts
+++ b/widget/next-env.d.ts
@@ -1,6 +1,6 @@
 /// <reference types="next" />
 /// <reference types="next/image-types/global" />
-import "./.next/types/routes.d.ts";
+import "./.next/dev/types/routes.d.ts";
 
 // NOTE: This file should not be edited
 // see https://nextjs.org/docs/pages/api-reference/config/typescript for more information.
diff --git a/widget/types/index.ts b/widget/types/index.ts
index 760254c6..bf7619bd 100644
--- a/widget/types/index.ts
+++ b/widget/types/index.ts
@@ -124,6 +124,7 @@ export interface ApiResponse<T = any> {
 export interface AggregationBucket {
   key: string;
   doc_count: number;
+  label?: string;
 }
 
 export interface AggregationData {