diff --git a/.gitmodules b/.gitmodules
index 7b4cb61..17056d9 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,9 @@
 [submodule "src/driver/lris2_csu"]
 	path = src/driver/lris2_csu
 	url = git@github.com:CaltechOpticalObservatories/lris2-csu.git
+[submodule "src/driver/inficon"]
+	path = src/driver/inficon
+	url = git@github.com:COO-Utilities/inficon.git
+[submodule "src/driver/pdu"]
+	path = src/driver/pdu
+	url = git@github.com:COO-Utilities/pdu.git
diff --git a/src/driver/inficon b/src/driver/inficon
new file mode 160000
index 0000000..d713d3c
--- /dev/null
+++ b/src/driver/inficon
@@ -0,0 +1 @@
+Subproject commit d713d3cd81d103eee918f5e7c85049368e348c0a
diff --git a/src/driver/pdu b/src/driver/pdu
new file mode 160000
index 0000000..6ec26a5
--- /dev/null
+++ b/src/driver/pdu
@@ -0,0 +1 @@
+Subproject commit 6ec26a574f731728ed67199cb2edbe23c62fbd9e