diff --git a/src/app/api/admin/companies/[id]/route.ts b/src/app/api/admin/companies/[id]/route.ts
index 7357065..0f5653f 100644
--- a/src/app/api/admin/companies/[id]/route.ts
+++ b/src/app/api/admin/companies/[id]/route.ts
@@ -77,6 +77,21 @@ export async function DELETE(_: Request, { params }: { params: Promise<{ id: str
   }
 
   try {
+    // Pré‑checagem para evitar 500 por FK: conta vínculos antes
+    const [usersCount, ticketsCount] = await Promise.all([
+      prisma.user.count({ where: { companyId: company.id } }),
+      prisma.ticket.count({ where: { companyId: company.id } }),
+    ])
+    if (usersCount > 0 || ticketsCount > 0) {
+      return NextResponse.json(
+        {
+          error: "Não é possível remover esta empresa pois existem registros vinculados.",
+          details: { users: usersCount, tickets: ticketsCount },
+        },
+        { status: 409 }
+      )
+    }
+
     await prisma.company.delete({ where: { id: company.id } })
     return NextResponse.json({ ok: true })
   } catch (error) {