diff --git a/.gitmodules b/.gitmodules
index aeba9f68dba..e12b83e126e 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -11,6 +11,9 @@
 	path = src/replace
 	url = https://github.com/The-OpenROAD-Project/RePlAce.git
 	branch = openroad
+[submodule "src/ioPlacer"]
+	path = src/ioPlacer
+	url = https://github.com/The-OpenROAD-Project/ioPlacer.git
 [submodule "src/opendp"]
 	path = src/opendp
 	url = https://github.com/The-OpenROAD-Project/OpenDP.git
diff --git a/include/openroad/OpenRoad.hh b/include/openroad/OpenRoad.hh
index 66599cab1a6..3d36711dc71 100644
--- a/include/openroad/OpenRoad.hh
+++ b/include/openroad/OpenRoad.hh
@@ -28,6 +28,10 @@ class dbNetwork;
 class Resizer;
 }
 
+namespace ioPlacer {
+class IOPlacementKernel;
+}
+
 namespace FastRoute {
 class FastRouteKernel;
 }
@@ -82,6 +86,7 @@ private:
   dbVerilogNetwork *verilog_network_;
   sta::dbSta *sta_;
   sta::Resizer *resizer_;
+  ioPlacer::IOPlacementKernel *ioPlacer_;
   opendp::opendp_external *opendp_;
   FastRoute::FastRouteKernel *fastRoute_;
 
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index e3252943d9f..3c0e29a7180 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -21,6 +21,8 @@ set(OPENDB_WRAP ${CMAKE_CURRENT_BINARY_DIR}/OpenDB_wrap.cc)
 set(RESIZER_HOME ${PROJECT_SOURCE_DIR}/src/resizer)
 set(OPENDP_HOME ${PROJECT_SOURCE_DIR}/src/opendp)
 
+set(IOPLACER_HOME ${PROJECT_SOURCE_DIR}/src/ioPlacer)
+
 set(FASTROUTE_HOME ${PROJECT_SOURCE_DIR}/src/FastRoute4-lefdef)
 
 set(OPENROAD_WRAP ${CMAKE_CURRENT_BINARY_DIR}/OpenRoad_wrap.cc)
@@ -70,6 +72,7 @@ add_custom_command(OUTPUT ${OPENROAD_WRAP}
   DEPENDS OpenRoad.i InitFloorplan.i
   )
 
+
 ################################################################
 #
 # Library dependencies
@@ -160,6 +163,7 @@ add_subdirectory(resizer)
 add_subdirectory(flute3)
 add_subdirectory(replace)
 add_subdirectory(opendp)
+add_subdirectory(ioPlacer)
 add_subdirectory(FastRoute4-lefdef)
 
 ################################################################
@@ -182,6 +186,7 @@ target_link_libraries(openroad
   replace
   opendp
   resizer
+  ioPlacer
   flute
   dbSta
   OpenSTA
diff --git a/src/OpenRoad.cc b/src/OpenRoad.cc
index 4bcc78353b5..1a9a633a433 100644
--- a/src/OpenRoad.cc
+++ b/src/OpenRoad.cc
@@ -28,6 +28,9 @@
 #include "openroad/InitOpenRoad.hh"
 #include "InitFlute.hh"
 
+
+#include "ioPlacer/src/MakeIoplacer.h"
+
 #include "resizer/MakeResizer.hh"
 #include "opendp/MakeOpendp.h"
 #include "replace/src/MakeReplace.h"
@@ -43,6 +46,7 @@ extern "C" {
 extern int Openroad_Init(Tcl_Interp *interp);
 extern int Opendbtcl_Init(Tcl_Interp *interp);
 extern int Replace_Init(Tcl_Interp *interp);
+extern int Ioplacer_Init(Tcl_Interp *interp);
 extern int Fastroute_Init(Tcl_Interp *interp);
 }
 
@@ -96,6 +100,7 @@ OpenRoad::init(Tcl_Interp *tcl_interp,
   db_ = dbDatabase::create();
   sta_ = makeDbSta();
   verilog_network_ = makeDbVerilogNetwork();
+  ioPlacer_ = (ioPlacer::IOPlacementKernel*) makeIoplacer();
   resizer_ = makeResizer();
   opendp_ = makeOpendp();
   fastRoute_ = (FastRoute::FastRouteKernel*) makeFastRoute();
@@ -109,6 +114,7 @@ OpenRoad::init(Tcl_Interp *tcl_interp,
   initDbSta(this);
   initResizer(this);
   initDbVerilogNetwork(this);
+  initIoplacer(this);
   initFlute(prog_arg);
   initReplace(this);
   initOpendp(this);
diff --git a/src/ioPlacer b/src/ioPlacer
new file mode 160000
index 00000000000..0a3a2886b0e
--- /dev/null
+++ b/src/ioPlacer
@@ -0,0 +1 @@
+Subproject commit 0a3a2886b0ec6876ec45a3f899c09ff647141e9a