diff --git a/apps/api/src/customers/customers.service.ts b/apps/api/src/customers/customers.service.ts
index de9a1e1..a31c57c 100644
--- a/apps/api/src/customers/customers.service.ts
+++ b/apps/api/src/customers/customers.service.ts
@@ -41,7 +41,9 @@ export class CustomersService {
         where,
         skip: (page - 1) * pageSize,
         take: pageSize,
-        orderBy: { name: "asc" },
+        // Nameless records last: ordering by name alone floats every
+        // "(SIN NOMBRE)" to the top, since "(" sorts before every letter.
+        orderBy: [{ nameMissing: "asc" }, { name: "asc" }],
         select: {
           id: true,
           name: true,
diff --git a/migration/transform_customers.py b/migration/transform_customers.py
index 1d49a8e..804c750 100644
--- a/migration/transform_customers.py
+++ b/migration/transform_customers.py
@@ -170,6 +170,7 @@ def customer_from_utilities(row, name_index) -> dict:
         id=str(uuid.uuid4()),
         name=name,
         nameSource=name_source,
+        nameMissing=int(name == NO_NAME),
         addressLine1=s(row["direccion"]),
         addressLine2=s(row["colonia"]),
         city=s(row["ciudad"]),
@@ -197,6 +198,7 @@ def customer_from_insurance(row, name_index) -> dict:
         id=str(uuid.uuid4()),
         name=name,
         nameSource=name_source,
+        nameMissing=int(name == NO_NAME),
         addressLine1=s(row["direccion_1"]),
         addressLine2=s(row["direccion_2"]),
         city=s(row["ciudad"]),
@@ -219,7 +221,7 @@ def customer_from_insurance(row, name_index) -> dict:
 
 
 _CUST_COLS = [
-    "id", "name", "nameSource", "addressLine1", "addressLine2", "city", "state", "zipCode",
+    "id", "name", "nameSource", "nameMissing", "addressLine1", "addressLine2", "city", "state", "zipCode",
     "country", "phone", "mobile", "fax", "email", "notes", "identificationType",
     "identificationNumber", "identificationExpiration", "customerSince",
     "status", "feeAmount", "updatedAt",
@@ -276,6 +278,7 @@ def main() -> None:
             if master["name"] == NO_NAME and ins_rec["name"] != NO_NAME:
                 master["name"] = ins_rec["name"]
                 master["nameSource"] = ins_rec["nameSource"] or "DATGRAL (seguros)"
+                master["nameMissing"] = 0
                 from_ins_side += 1
             enrich.append((cust_id, ins_rec))
         else:
diff --git a/packages/database/prisma/schema.prisma b/packages/database/prisma/schema.prisma
index bc81dac..94f30a9 100644
--- a/packages/database/prisma/schema.prisma
+++ b/packages/database/prisma/schema.prisma
@@ -55,6 +55,10 @@ model Customer {
   // recovered from a secondary table (see migration/transform_customers.py),
   // so staff can tell a reconstructed name from an original one.
   nameSource                String?
+  // True when `name` is the "(SIN NOMBRE)" placeholder. Denormalized so lists
+  // can sort nameless records last — ordering by `name` alone puts them first,
+  // since "(" sorts before every letter.
+  nameMissing               Boolean   @default(false)
   addressLine1              String?
   addressLine2              String?
   city                      String?