diff --git a/cli/src/__tests__/company-import-transfer.test.ts b/cli/src/__tests__/company-import-transfer.test.ts
index c8b560849d..37c0b150bc 100644
--- a/cli/src/__tests__/company-import-transfer.test.ts
+++ b/cli/src/__tests__/company-import-transfer.test.ts
@@ -320,6 +320,24 @@ describe("uploadCompanyImportTransfer", () => {
     await expect(uploadCompanyImportTransfer(api, zipBytes)).rejects.toThrow(/already imported/);
     expect(putRaw).not.toHaveBeenCalled();
   });
+
+  it("names the company the completed transfer created", async () => {
+    const { api, putRaw } = fakeApi({
+      post: vi.fn().mockResolvedValue({
+        transferId: "transfer-1",
+        status: "completed",
+        alreadyCompleted: true,
+        totalParts: 2,
+        missingParts: [],
+        company: { id: "company-2", name: "Paperclip", issuePrefix: "PAPA" },
+      }),
+    });
+
+    await expect(uploadCompanyImportTransfer(api, zipBytes)).rejects.toThrow(
+      /landed in the company "Paperclip" \(PAPA\)/,
+    );
+    expect(putRaw).not.toHaveBeenCalled();
+  });
 });
 
 describe("company import command over the chunked transfer path", () => {
diff --git a/cli/src/commands/client/company.ts b/cli/src/commands/client/company.ts
index e1e7bea44b..5deb822bd5 100644
--- a/cli/src/commands/client/company.ts
+++ b/cli/src/commands/client/company.ts
@@ -14,6 +14,7 @@ import type {
   CompanyPortabilityImportResult,
 } from "@paperclipai/shared";
 import {
+  buildAlreadyImportedMessage,
   companyImportTransferApplyPath,
   companyImportTransferPartPath,
   companyImportTransferPreviewPath,
@@ -1160,9 +1161,9 @@ export async function uploadCompanyImportTransfer(
   if (created.alreadyCompleted) {
     // The server keys transfers by content, and this exact zip already
     // finished an apply — its spooled parts are gone, so it cannot re-run.
-    throw new Error(
-      "This exact package was already imported by a completed transfer. Re-export the package to import it again.",
-    );
+    // Name the company that apply created so the rejection points at the
+    // existing import instead of reading as data loss.
+    throw new Error(buildAlreadyImportedMessage(created.company));
   }
   const missing = new Set(created.missingParts);
   let uploadedParts = manifest.parts.length - missing.size;
diff --git a/packages/shared/src/company-import-transfer.test.ts b/packages/shared/src/company-import-transfer.test.ts
new file mode 100644
index 0000000000..213169db79
--- /dev/null
+++ b/packages/shared/src/company-import-transfer.test.ts
@@ -0,0 +1,29 @@
+import { describe, expect, it } from "vitest";
+import { buildAlreadyImportedMessage } from "./company-import-transfer.js";
+
+describe("buildAlreadyImportedMessage", () => {
+  it("names the landed company with its prefix", () => {
+    expect(
+      buildAlreadyImportedMessage({ id: "company-2", name: "Paperclip", issuePrefix: "PAPA" }),
+    ).toBe(
+      'This exact package was already imported by a completed transfer. The earlier import landed in the company "Paperclip" (PAPA) — open it from the company switcher. Re-export the package to import it again.',
+    );
+  });
+
+  it("falls back to the company id when the name is gone and omits an absent prefix", () => {
+    expect(
+      buildAlreadyImportedMessage({ id: "company-2", name: null, issuePrefix: null }),
+    ).toBe(
+      'This exact package was already imported by a completed transfer. The earlier import landed in the company "company-2" — open it from the company switcher. Re-export the package to import it again.',
+    );
+  });
+
+  it("keeps the original message when no company is known", () => {
+    expect(buildAlreadyImportedMessage(null)).toBe(
+      "This exact package was already imported by a completed transfer. Re-export the package to import it again.",
+    );
+    expect(buildAlreadyImportedMessage(undefined)).toBe(
+      "This exact package was already imported by a completed transfer. Re-export the package to import it again.",
+    );
+  });
+});
diff --git a/packages/shared/src/company-import-transfer.ts b/packages/shared/src/company-import-transfer.ts
index f6778a1c9e..376482a8c2 100644
--- a/packages/shared/src/company-import-transfer.ts
+++ b/packages/shared/src/company-import-transfer.ts
@@ -78,6 +78,29 @@ export interface CompanyImportTransferCreated {
   alreadyCompleted: boolean;
   totalParts: number;
   missingParts: number[];
+  /**
+   * Where the prior completed apply landed, so an alreadyCompleted rejection
+   * can point at the existing company instead of reading as data loss.
+   * Null/absent when the run's company link was never written or the company
+   * has since been deleted.
+   */
+  company?: { id: string; name: string | null; issuePrefix: string | null } | null;
+}
+
+/**
+ * Human-facing message for an `alreadyCompleted` declaration. Shared by the
+ * web and CLI clients so the copy (and the pointer to the landed company)
+ * stays identical everywhere the rejection surfaces.
+ */
+export function buildAlreadyImportedMessage(
+  company: CompanyImportTransferCreated["company"],
+): string {
+  // "landed in", not "created": a completed transfer may have created a new
+  // company or merged into an existing one, and the caller cannot tell which.
+  const location = company
+    ? ` The earlier import landed in the company "${company.name ?? company.id}"${company.issuePrefix ? ` (${company.issuePrefix})` : ""} — open it from the company switcher.`
+    : "";
+  return `This exact package was already imported by a completed transfer.${location} Re-export the package to import it again.`;
 }
 
 /** Response of the resume-polling GET for one transfer. */
diff --git a/server/src/__tests__/company-import-transfer-routes.test.ts b/server/src/__tests__/company-import-transfer-routes.test.ts
index 994b7afe38..b1dd3f9d84 100644
--- a/server/src/__tests__/company-import-transfer-routes.test.ts
+++ b/server/src/__tests__/company-import-transfer-routes.test.ts
@@ -727,11 +727,28 @@ describeEmbeddedPostgres("company import transfer routes", () => {
       (await request(app).post(`/api/companies/import/transfers/${transferId}/apply`).send(importMeta)).status,
     ).toBe(200);
 
+    // The rejection names the company the completed apply created so the
+    // caller can find the earlier import instead of reading it as data loss.
+    mockCompanyService.getById.mockResolvedValue({
+      id: companyId,
+      name: "Paperclip",
+      issuePrefix: "PAPA",
+    });
     const redeclared = await request(app).post("/api/companies/import/transfers").send(body);
     expect(redeclared.status).toBe(200);
     expect(redeclared.body.transferId).toBe(transferId);
     expect(redeclared.body.alreadyCompleted).toBe(true);
     expect(redeclared.body.missingParts).toEqual([]);
+    expect(mockCompanyService.getById).toHaveBeenCalledWith(companyId);
+    expect(redeclared.body.company).toEqual({ id: companyId, name: "Paperclip", issuePrefix: "PAPA" });
+
+    // A company deleted since the apply (or an attach that never happened)
+    // degrades to company: null, never a 500.
+    mockCompanyService.getById.mockResolvedValue(null);
+    const redeclaredAfterDelete = await request(app).post("/api/companies/import/transfers").send(body);
+    expect(redeclaredAfterDelete.status).toBe(200);
+    expect(redeclaredAfterDelete.body.alreadyCompleted).toBe(true);
+    expect(redeclaredAfterDelete.body.company).toBeNull();
 
     const reApplied = await request(app)
       .post(`/api/companies/import/transfers/${transferId}/apply`)
diff --git a/server/src/routes/companies.ts b/server/src/routes/companies.ts
index 7497da3617..6a929196e1 100644
--- a/server/src/routes/companies.ts
+++ b/server/src/routes/companies.ts
@@ -62,7 +62,7 @@ import {
 } from "../services/index.js";
 import { isCloudManagedInstance } from "../services/cloud-instance.js";
 import type { StorageService } from "../storage/types.js";
-import { assertBoard, assertCompanyAccess, assertInstanceAdmin, getActorInfo } from "./authz.js";
+import { assertBoard, assertCompanyAccess, assertInstanceAdmin, getActorInfo, hasCompanyAccess } from "./authz.js";
 import { COMPANY_IMPORT_ROUTE_PATH } from "./company-import-paths.js";
 
 // A company import can arrive one of two ways on the import + preview routes:
@@ -729,12 +729,25 @@ export function companyRoutes(db: Db, storage?: StorageService, options?: Compan
       containerRef: { kind: "chunked_zip_upload" },
     });
     if (alreadyCompleted) {
+      // Tell the caller WHERE the prior apply landed. companyId on the run is
+      // written best-effort after apply and the company may have been deleted
+      // since, so this lookup is null-safe and the field stays optional. The
+      // actor key proves this caller ran the original import, but their
+      // access may have been revoked since — withhold the identity unless
+      // they can still reach the company today (hasCompanyAccess, so a
+      // revoked caller sees the same null as a deleted company).
+      const landedCompany = run.companyId && hasCompanyAccess(req, run.companyId)
+        ? await svc.getById(run.companyId)
+        : null;
       res.json({
         transferId: run.id,
         status: "completed",
         alreadyCompleted: true,
         totalParts: declared.parts.length,
         missingParts: [],
+        company: landedCompany
+          ? { id: landedCompany.id, name: landedCompany.name ?? null, issuePrefix: landedCompany.issuePrefix ?? null }
+          : null,
       } satisfies CompanyImportTransferCreated);
       return;
     }
diff --git a/ui/src/pages/CompanyImport.tsx b/ui/src/pages/CompanyImport.tsx
index 4e86104af0..21b57eb9d4 100644
--- a/ui/src/pages/CompanyImport.tsx
+++ b/ui/src/pages/CompanyImport.tsx
@@ -52,7 +52,7 @@ import {
 } from "../components/FileTree";
 import { readZipArchive } from "../lib/zip";
 import { formatMegabytes } from "../lib/import-preflight";
-import type { CompanyImportTransferDeclaration } from "@paperclipai/shared/company-import-transfer";
+import { buildAlreadyImportedMessage, type CompanyImportTransferDeclaration } from "@paperclipai/shared/company-import-transfer";
 import {
   CHUNKED_IMPORT_THRESHOLD_BYTES,
   IMPORT_TRANSFER_PART_ATTEMPTS,
@@ -944,10 +944,10 @@ export function CompanyImport() {
     const created = await companiesApi.importTransferCreate(manifest);
     if (created.alreadyCompleted) {
       // The server keys transfers by content, and this exact zip already
-      // finished an apply — its parts are gone, so it cannot be re-run.
-      throw new Error(
-        "This exact package was already imported by a completed transfer. Re-export the package to import it again.",
-      );
+      // finished an apply — its parts are gone, so it cannot be re-run. Name
+      // the company that apply created so this reads as "your import exists
+      // over there", not as data loss.
+      throw new Error(buildAlreadyImportedMessage(created.company));
     }
     const missing = new Set(created.missingParts);
     let uploadedParts = manifest.parts.length - missing.size;