diff --git a/phosphor-ldap-mapper/Makefile.am b/phosphor-ldap-mapper/Makefile.am
index 4aeca7b..c2896ba 100644
--- a/phosphor-ldap-mapper/Makefile.am
+++ b/phosphor-ldap-mapper/Makefile.am
@@ -1,12 +1,14 @@
 sbin_PROGRAMS = phosphor-ldap-mapper
 
 noinst_HEADERS = ldap_mapper_mgr.hpp \
-                 ldap_mapper_entry.hpp
+                 ldap_mapper_entry.hpp \
+                 ldap_mapper_serialize.hpp
 
 phosphor_ldap_mapper_SOURCES = \
                 main.cpp \
                 ldap_mapper_mgr.cpp \
-                ldap_mapper_entry.cpp
+                ldap_mapper_entry.cpp \
+                ldap_mapper_serialize.cpp
 
 phosphor_ldap_mapper_LDFLAGS = $(SDBUSPLUS_LIBS) \
                                $(PHOSPHOR_DBUS_INTERFACES_LIBS) \
diff --git a/phosphor-ldap-mapper/ldap_mapper_entry.cpp b/phosphor-ldap-mapper/ldap_mapper_entry.cpp
index 64d3578..95f381d 100644
--- a/phosphor-ldap-mapper/ldap_mapper_entry.cpp
+++ b/phosphor-ldap-mapper/ldap_mapper_entry.cpp
@@ -7,6 +7,7 @@
 #include "config.h"
 #include "ldap_mapper_entry.hpp"
 #include "ldap_mapper_mgr.hpp"
+#include "ldap_mapper_serialize.hpp"
 
 namespace phosphor
 {
@@ -31,6 +32,14 @@
     Ifaces::emit_object_added();
 }
 
+LDAPMapperEntry::LDAPMapperEntry(sdbusplus::bus::bus &bus, const char *path,
+                                 LDAPMapperMgr &parent) :
+    Ifaces(bus, path, true),
+    id(std::stol(std::experimental::filesystem::path(path).filename())),
+    manager(parent)
+{
+}
+
 void LDAPMapperEntry::delete_(void)
 {
     manager.deletePrivilegeMapper(id);
@@ -44,7 +53,9 @@
     }
 
     manager.checkPrivilegeMapper(value);
-    return Ifaces::groupName(value);
+    auto val = Ifaces::groupName(value);
+    serialize(*this, id);
+    return val;
 }
 
 std::string LDAPMapperEntry::privilege(std::string value)
@@ -55,7 +66,9 @@
     }
 
     manager.checkPrivilegeLevel(value);
-    return Ifaces::privilege(value);
+    auto val = Ifaces::privilege(value);
+    serialize(*this, id);
+    return val;
 }
 
 } // namespace user
diff --git a/phosphor-ldap-mapper/ldap_mapper_entry.hpp b/phosphor-ldap-mapper/ldap_mapper_entry.hpp
index 689639d..ea8a0bc 100644
--- a/phosphor-ldap-mapper/ldap_mapper_entry.hpp
+++ b/phosphor-ldap-mapper/ldap_mapper_entry.hpp
@@ -46,6 +46,15 @@
                     const std::string &groupName, const std::string &privilege,
                     LDAPMapperMgr &parent);
 
+    /** @brief Constructs LDAP privilege mapper entry object
+     *
+     *  @param[in] bus  - sdbusplus handler
+     *  @param[in] path - D-Bus path
+     *  @param[in] parent - LDAP privilege mapper manager
+     */
+    LDAPMapperEntry(sdbusplus::bus::bus &bus, const char *path,
+                    LDAPMapperMgr &parent);
+
     /** @brief Delete privilege mapper entry object
      *
      *  This method deletes the privilege mapper entry.
diff --git a/phosphor-ldap-mapper/ldap_mapper_mgr.cpp b/phosphor-ldap-mapper/ldap_mapper_mgr.cpp
index 9fe40ad..a321331 100644
--- a/phosphor-ldap-mapper/ldap_mapper_mgr.cpp
+++ b/phosphor-ldap-mapper/ldap_mapper_mgr.cpp
@@ -5,6 +5,7 @@
 #include <phosphor-logging/elog-errors.hpp>
 #include "config.h"
 #include "ldap_mapper_mgr.hpp"
+#include "ldap_mapper_serialize.hpp"
 
 namespace phosphor
 {
@@ -38,6 +39,8 @@
     auto entry = std::make_unique<phosphor::user::LDAPMapperEntry>(
         bus, mapperObject.c_str(), groupName, privilege, *this);
 
+    serialize(*entry, entryId);
+
     PrivilegeMapperList.emplace(entryId, std::move(entry));
 
     return mapperObject;
@@ -45,6 +48,11 @@
 
 void LDAPMapperMgr::deletePrivilegeMapper(Id id)
 {
+    // Delete the persistent representation of the privilege mapper.
+    fs::path mapperPath(LDAP_MAPPER_PERSIST_PATH);
+    mapperPath /= std::to_string(id);
+    fs::remove(mapperPath);
+
     PrivilegeMapperList.erase(id);
 }
 
@@ -84,5 +92,34 @@
     }
 }
 
+void LDAPMapperMgr::restore()
+{
+    namespace fs = std::experimental::filesystem;
+
+    fs::path dir(LDAP_MAPPER_PERSIST_PATH);
+    if (!fs::exists(dir) || fs::is_empty(dir))
+    {
+        return;
+    }
+
+    for (auto &file : fs::directory_iterator(dir))
+    {
+        std::string id = file.path().filename().c_str();
+        size_t idNum = std::stol(id);
+        auto entryPath = std::string(mapperMgrRoot) + '/' + id;
+        auto entry = std::make_unique<phosphor::user::LDAPMapperEntry>(
+            bus, entryPath.c_str(), *this);
+        if (deserialize(file.path(), *entry))
+        {
+            entry->Ifaces::emit_object_added();
+            PrivilegeMapperList.emplace(idNum, std::move(entry));
+            if (idNum > entryId)
+            {
+                entryId = idNum;
+            }
+        }
+    }
+}
+
 } // namespace user
 } // namespace phosphor
diff --git a/phosphor-ldap-mapper/ldap_mapper_mgr.hpp b/phosphor-ldap-mapper/ldap_mapper_mgr.hpp
index 450626d..b2617ca 100644
--- a/phosphor-ldap-mapper/ldap_mapper_mgr.hpp
+++ b/phosphor-ldap-mapper/ldap_mapper_mgr.hpp
@@ -80,6 +80,11 @@
      */
     void checkPrivilegeLevel(const std::string &privilege);
 
+    /** @brief Construct LDAP mapper entry D-Bus objects from their persisted
+     *         representations.
+     */
+    void restore();
+
   private:
     /** @brief sdbusplus handler */
     sdbusplus::bus::bus &bus;
diff --git a/phosphor-ldap-mapper/ldap_mapper_serialize.cpp b/phosphor-ldap-mapper/ldap_mapper_serialize.cpp
new file mode 100644
index 0000000..534e0a1
--- /dev/null
+++ b/phosphor-ldap-mapper/ldap_mapper_serialize.cpp
@@ -0,0 +1,95 @@
+#include <cereal/archives/binary.hpp>
+#include <cereal/types/string.hpp>
+#include <fstream>
+#include <phosphor-logging/log.hpp>
+#include "config.h"
+#include "ldap_mapper_serialize.hpp"
+
+// Register class version
+// From cereal documentation;
+// "This macro should be placed at global scope"
+CEREAL_CLASS_VERSION(phosphor::user::LDAPMapperEntry, CLASS_VERSION);
+
+namespace phosphor
+{
+namespace user
+{
+
+using namespace phosphor::logging;
+
+/** @brief Function required by Cereal to perform serialization.
+ *
+ *  @tparam Archive - Cereal archive type (binary in this case).
+ *  @param[in] archive - reference to cereal archive.
+ *  @param[in] entry- const reference to LDAP mapper entry
+ *  @param[in] version - Class version that enables handling a serialized data
+ *                       across code levels
+ */
+template <class Archive>
+void save(Archive& archive, const LDAPMapperEntry& entry,
+          const std::uint32_t version)
+{
+    archive(entry.groupName(), entry.privilege());
+}
+
+/** @brief Function required by Cereal to perform deserialization.
+ *
+ *  @tparam Archive - Cereal archive type (binary in our case).
+ *  @param[in] archive - reference to cereal archive.
+ *  @param[out] entry - LDAP mapper entry to be read
+ *  @param[in] version - Class version that enables handling a serialized data
+ *                       across code levels
+ */
+template <class Archive>
+void load(Archive& archive, LDAPMapperEntry& entry, const std::uint32_t version)
+{
+    std::string groupName{};
+    std::string privilege{};
+
+    archive(groupName, privilege);
+
+    entry.sdbusplus::xyz::openbmc_project::User::server::PrivilegeMapperEntry::
+        groupName(groupName, true);
+    entry.sdbusplus::xyz::openbmc_project::User::server::PrivilegeMapperEntry::
+        privilege(privilege, true);
+}
+
+fs::path serialize(const LDAPMapperEntry& entry, Id id)
+{
+    fs::path dir(LDAP_MAPPER_PERSIST_PATH);
+    auto path = dir / std::to_string(id);
+    std::ofstream os(path.c_str(), std::ios::binary);
+    cereal::BinaryOutputArchive oarchive(os);
+    oarchive(entry);
+    return path;
+}
+
+bool deserialize(const fs::path& path, LDAPMapperEntry& entry)
+{
+    try
+    {
+        if (fs::exists(path))
+        {
+            std::ifstream is(path.c_str(), std::ios::in | std::ios::binary);
+            cereal::BinaryInputArchive iarchive(is);
+            iarchive(entry);
+            return true;
+        }
+        return false;
+    }
+    catch (cereal::Exception& e)
+    {
+        log<level::ERR>(e.what());
+        fs::remove(path);
+        return false;
+    }
+    catch (const std::length_error& e)
+    {
+        log<level::ERR>(e.what());
+        fs::remove(path);
+        return false;
+    }
+}
+
+} // namespace user
+} // namespace phosphor
diff --git a/phosphor-ldap-mapper/ldap_mapper_serialize.hpp b/phosphor-ldap-mapper/ldap_mapper_serialize.hpp
new file mode 100644
index 0000000..f48f73c
--- /dev/null
+++ b/phosphor-ldap-mapper/ldap_mapper_serialize.hpp
@@ -0,0 +1,33 @@
+#pragma once
+
+#include <experimental/filesystem>
+#include "ldap_mapper_entry.hpp"
+
+namespace phosphor
+{
+namespace user
+{
+
+namespace fs = std::experimental::filesystem;
+
+/** @brief Serialize and persist LDAP privilege mapper D-Bus object
+ *
+ *  @param[in] entry - LDAP privilege mapper entry
+ *  @param[in] id - filename of the persisted LDAP mapper entry
+ *
+ *  @return fs::path - pathname of persisted error file
+ */
+fs::path serialize(const LDAPMapperEntry& entry, Id id);
+
+/** @brief Deserialize a persisted LDAP privilege mapper into a D-Bus object
+ *
+ *  @param[in] path - pathname of persisted file
+ *  @param[in/out] entry - reference to  LDAP privilege mapper entry object
+ *                         which is the target of deserialization.
+ *
+ *  @return bool - true if the deserialization was successful, false otherwise.
+ */
+bool deserialize(const fs::path& path, LDAPMapperEntry& entry);
+
+} // namespace user
+} // namespace phosphor
diff --git a/phosphor-ldap-mapper/main.cpp b/phosphor-ldap-mapper/main.cpp
index b4a0650..15c9802 100644
--- a/phosphor-ldap-mapper/main.cpp
+++ b/phosphor-ldap-mapper/main.cpp
@@ -11,6 +11,12 @@
 
     phosphor::user::LDAPMapperMgr mapperMgr(bus, phosphor::user::mapperMgrRoot);
 
+    // Create a directory to persist errors.
+    std::experimental::filesystem::create_directories(LDAP_MAPPER_PERSIST_PATH);
+
+    // Restore the serialized LDAP group privilege mapping.
+    mapperMgr.restore();
+
     // Claim the bus name for the application
     bus.request_name(LDAP_MAPPER_MANAGER_BUSNAME);