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);
+
+}
+}
+}