diff --git a/pw_compilation_testing/OWNERS b/pw_compilation_testing/OWNERS
new file mode 100644
index 0000000000..d96cbc68df
--- /dev/null
+++ b/pw_compilation_testing/OWNERS
@@ -0,0 +1 @@
+hepler@google.com
diff --git a/pw_log_android/OWNERS b/pw_log_android/OWNERS
new file mode 100644
index 0000000000..21d24bca7f
--- /dev/null
+++ b/pw_log_android/OWNERS
@@ -0,0 +1 @@
+ewout@google.com
diff --git a/pw_rust/OWNERS b/pw_rust/OWNERS
new file mode 100644
index 0000000000..b88291501f
--- /dev/null
+++ b/pw_rust/OWNERS
@@ -0,0 +1,2 @@
+frolv@google.com
+konkers@google.com
diff --git a/pw_sys_io_emcraft_sf2/OWNERS b/pw_sys_io_emcraft_sf2/OWNERS
new file mode 100644
index 0000000000..8c230af995
--- /dev/null
+++ b/pw_sys_io_emcraft_sf2/OWNERS
@@ -0,0 +1 @@
+skeys@google.com
diff --git a/pw_sys_io_pico/OWNERS b/pw_sys_io_pico/OWNERS
new file mode 100644
index 0000000000..307b1deb5b
--- /dev/null
+++ b/pw_sys_io_pico/OWNERS
@@ -0,0 +1 @@
+amontanez@google.com
diff --git a/pw_web/OWNERS b/pw_web/OWNERS
index e69de29bb2..15915ca94b 100644
--- a/pw_web/OWNERS
+++ b/pw_web/OWNERS
@@ -0,0 +1 @@
+asadmemon@google.com
diff --git a/targets/emcraft_sf2_som/OWNERS b/targets/emcraft_sf2_som/OWNERS
new file mode 100644
index 0000000000..8c230af995
--- /dev/null
+++ b/targets/emcraft_sf2_som/OWNERS
@@ -0,0 +1 @@
+skeys@google.com
diff --git a/targets/host_device_simulator/OWNERS b/targets/host_device_simulator/OWNERS
new file mode 100644
index 0000000000..307b1deb5b
--- /dev/null
+++ b/targets/host_device_simulator/OWNERS
@@ -0,0 +1 @@
+amontanez@google.com
diff --git a/targets/mimxrt595_evk/OWNERS b/targets/mimxrt595_evk/OWNERS
new file mode 100644
index 0000000000..c224618cd8
--- /dev/null
+++ b/targets/mimxrt595_evk/OWNERS
@@ -0,0 +1 @@
+keybuk@google.com
diff --git a/targets/rp2040/OWNERS b/targets/rp2040/OWNERS
new file mode 100644
index 0000000000..55936259d3
--- /dev/null
+++ b/targets/rp2040/OWNERS
@@ -0,0 +1,2 @@
+amontanez@google.com
+tonymd@google.com
diff --git a/targets/rp2040_pw_system/OWNERS b/targets/rp2040_pw_system/OWNERS
new file mode 100644
index 0000000000..55936259d3
--- /dev/null
+++ b/targets/rp2040_pw_system/OWNERS
@@ -0,0 +1,2 @@
+amontanez@google.com
+tonymd@google.com
diff --git a/targets/stm32f429i_disc1_stm32cube/OWNERS b/targets/stm32f429i_disc1_stm32cube/OWNERS
new file mode 100644
index 0000000000..307b1deb5b
--- /dev/null
+++ b/targets/stm32f429i_disc1_stm32cube/OWNERS
@@ -0,0 +1 @@
+amontanez@google.com
diff --git a/third_party/fuchsia/OWNERS b/third_party/fuchsia/OWNERS
new file mode 100644
index 0000000000..73d84b4af3
--- /dev/null
+++ b/third_party/fuchsia/OWNERS
@@ -0,0 +1,2 @@
+hepler@google.com
+mohrr@google.com
diff --git a/third_party/google_auto/OWNERS b/third_party/google_auto/OWNERS
new file mode 100644
index 0000000000..d96cbc68df
--- /dev/null
+++ b/third_party/google_auto/OWNERS
@@ -0,0 +1 @@
+hepler@google.com
diff --git a/third_party/pico_sdk/OWNERS b/third_party/pico_sdk/OWNERS
new file mode 100644
index 0000000000..55936259d3
--- /dev/null
+++ b/third_party/pico_sdk/OWNERS
@@ -0,0 +1,2 @@
+amontanez@google.com
+tonymd@google.com
diff --git a/third_party/rules_proto_grpc/OWNERS b/third_party/rules_proto_grpc/OWNERS
new file mode 100644
index 0000000000..68efc833cf
--- /dev/null
+++ b/third_party/rules_proto_grpc/OWNERS
@@ -0,0 +1 @@
+tpudlik@google.com
diff --git a/third_party/smartfusion_mss/OWNERS b/third_party/smartfusion_mss/OWNERS
new file mode 100644
index 0000000000..8c230af995
--- /dev/null
+++ b/third_party/smartfusion_mss/OWNERS
@@ -0,0 +1 @@
+skeys@google.com