diff --git a/Makefile.am b/Makefile.am
index 610e543..30223d0 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -6,7 +6,8 @@
 phosphor_fan_presence_tach_SOURCES = \
 	fan_enclosure.cpp \
 	tach_sensor.cpp \
-	tach_detect.cpp
+	tach_detect.cpp \
+	utility.cpp
 nodist_phosphor_fan_presence_tach_SOURCES = \
 	fan_detect_defs.cpp
 
diff --git a/fan_enclosure.cpp b/fan_enclosure.cpp
index cb0c423..262876e 100644
--- a/fan_enclosure.cpp
+++ b/fan_enclosure.cpp
@@ -16,7 +16,7 @@
 #include <algorithm>
 #include <phosphor-logging/log.hpp>
 #include "fan_enclosure.hpp"
-
+#include "utility.hpp"
 
 namespace phosphor
 {
@@ -27,11 +27,6 @@
 
 using namespace phosphor::logging;
 
-//TODO Should get these from phosphor-objmgr config.h
-constexpr auto MAPPER_BUSNAME = "xyz.openbmc_project.ObjectMapper";
-constexpr auto MAPPER_PATH = "/xyz/openbmc_project/object_mapper";
-constexpr auto MAPPER_INTERFACE = "xyz.openbmc_project.ObjectMapper";
-
 //TODO Should get these from phosphor-inventory-manager config.h
 constexpr auto INVENTORY_PATH = "/xyz/openbmc_project/inventory";
 constexpr auto INVENTORY_INTF = "xyz.openbmc_project.Inventory.Manager";
@@ -62,35 +57,6 @@
     return invObj;
 }
 
-std::string FanEnclosure::getInvService()
-{
-    auto mapperCall = bus.new_method_call(MAPPER_BUSNAME,
-                                          MAPPER_PATH,
-                                          MAPPER_INTERFACE,
-                                          "GetObject");
-
-    mapperCall.append(INVENTORY_PATH);
-    mapperCall.append(std::vector<std::string>({INVENTORY_INTF}));
-
-    auto mapperResponseMsg = bus.call(mapperCall);
-    if (mapperResponseMsg.is_method_error())
-    {
-        throw std::runtime_error(
-            "Error in mapper call to get inventory service name");
-    }
-
-    std::map<std::string, std::vector<std::string>> mapperResponse;
-    mapperResponseMsg.read(mapperResponse);
-
-    if (mapperResponse.empty())
-    {
-        throw std::runtime_error(
-            "Error in mapper response for inventory service name");
-    }
-
-    return mapperResponse.begin()->first;
-}
-
 void FanEnclosure::updInventory()
 {
     auto curPresState = getCurPresState();
@@ -103,7 +69,7 @@
         std::string invService;
         try
         {
-            invService = getInvService();
+            invService = getInvService(bus);
         }
         catch (const std::runtime_error& err)
         {
diff --git a/fan_enclosure.hpp b/fan_enclosure.hpp
index 1c8d241..8f5cfdf 100644
--- a/fan_enclosure.hpp
+++ b/fan_enclosure.hpp
@@ -97,13 +97,7 @@
          * @return Current presence state determined from all sensors
          */
         presenceState getCurPresState();
-        //TODO openbmc/openbmc#1299 - Move getInvService() to a utility file
-        /**
-         * @brief Get the inventory service name from the mapper object
-         *
-         * @return The inventory manager service name
-         */
-        std::string getInvService();
+
         /**
          * @brief Construct the inventory object map
          *
diff --git a/utility.cpp b/utility.cpp
new file mode 100644
index 0000000..db88712
--- /dev/null
+++ b/utility.cpp
@@ -0,0 +1,66 @@
+/**
+ * Copyright © 2017 IBM Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <string>
+#include "utility.hpp"
+
+namespace phosphor
+{
+namespace fan
+{
+namespace presence
+{
+
+//TODO Should get these from phosphor-objmgr config.h
+constexpr auto MAPPER_BUSNAME = "xyz.openbmc_project.ObjectMapper";
+constexpr auto MAPPER_PATH = "/xyz/openbmc_project/object_mapper";
+constexpr auto MAPPER_INTERFACE = "xyz.openbmc_project.ObjectMapper";
+
+//TODO Should get these from phosphor-inventory-manager config.h
+constexpr auto INVENTORY_PATH = "/xyz/openbmc_project/inventory";
+constexpr auto INVENTORY_INTF = "xyz.openbmc_project.Inventory.Manager";
+
+std::string getInvService(sdbusplus::bus::bus& bus)
+{
+    auto mapperCall = bus.new_method_call(MAPPER_BUSNAME,
+                                          MAPPER_PATH,
+                                          MAPPER_INTERFACE,
+                                          "GetObject");
+
+    mapperCall.append(INVENTORY_PATH);
+    mapperCall.append(std::vector<std::string>({INVENTORY_INTF}));
+
+    auto mapperResponseMsg = bus.call(mapperCall);
+    if (mapperResponseMsg.is_method_error())
+    {
+        throw std::runtime_error(
+            "Error in mapper call to get inventory service name");
+    }
+
+    std::map<std::string, std::vector<std::string>> mapperResponse;
+    mapperResponseMsg.read(mapperResponse);
+
+    if (mapperResponse.empty())
+    {
+        throw std::runtime_error(
+            "Error in mapper response for inventory service name");
+    }
+
+    return mapperResponse.begin()->first;
+}
+
+}
+}
+}
diff --git a/utility.hpp b/utility.hpp
new file mode 100644
index 0000000..d45fa02
--- /dev/null
+++ b/utility.hpp
@@ -0,0 +1,21 @@
+#pragma once
+
+#include <sdbusplus/bus.hpp>
+
+namespace phosphor
+{
+namespace fan
+{
+namespace presence
+{
+
+/**
+ * @brief Get the inventory service name from the mapper object
+ *
+ * @return The inventory manager service name
+ */
+std::string getInvService(sdbusplus::bus::bus& bus);
+
+}
+}
+}