diff --git a/pw_allocator/OWNERS b/pw_allocator/OWNERS
new file mode 100644
index 0000000..3afb926
--- /dev/null
+++ b/pw_allocator/OWNERS
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diff --git a/pw_analog/OWNERS b/pw_analog/OWNERS
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index 0000000..7ef1298
--- /dev/null
+++ b/pw_analog/OWNERS
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diff --git a/pw_android_toolchain/OWNERS b/pw_android_toolchain/OWNERS
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index 0000000..c224618
--- /dev/null
+++ b/pw_android_toolchain/OWNERS
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new file mode 100644
index 0000000..ca011e8
--- /dev/null
+++ b/pw_arduino_build/OWNERS
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index 0000000..2529495
--- /dev/null
+++ b/pw_assert/OWNERS
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index 0000000..2529495
--- /dev/null
+++ b/pw_assert_basic/OWNERS
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index 0000000..2529495
--- /dev/null
+++ b/pw_assert_log/OWNERS
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index 0000000..d96cbc6
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index 0000000..3afb926
--- /dev/null
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index 0000000..0ed2d4b
--- /dev/null
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index 0000000..21d24bc
--- /dev/null
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index 0000000..103db5c
--- /dev/null
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index 0000000..103db5c
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index 0000000..d96cbc6
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index 0000000..307b1de
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index 0000000..c224618
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index 0000000..d96cbc6
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index 0000000..d96cbc6
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index 0000000..e9a6c58
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index 0000000..e9a6c58
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index 0000000..e9a6c58
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index 0000000..d96cbc6
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index 0000000..d96cbc6
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index 0000000..3afb926
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index 0000000..3afb926
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index 0000000..2529495
--- /dev/null
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index 0000000..d96cbc6
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index 0000000..c0fb30b
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index 0000000..d96cbc6
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index 0000000..34fbf1b
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index 0000000..73d84b4
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index 0000000..d96cbc6
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index 0000000..307b1de
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index 0000000..d96cbc6
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index 0000000..e9a6c58
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diff --git a/pw_thread_threadx/OWNERS b/pw_thread_threadx/OWNERS
new file mode 100644
index 0000000..e9a6c58
--- /dev/null
+++ b/pw_thread_threadx/OWNERS
@@ -0,0 +1,2 @@
+ewout@google.com
+hepler@google.com
diff --git a/pw_tls_client/OWNERS b/pw_tls_client/OWNERS
new file mode 100644
index 0000000..121c6f5
--- /dev/null
+++ b/pw_tls_client/OWNERS
@@ -0,0 +1 @@
+zyecheng@google.com
diff --git a/pw_tls_client_boringssl/OWNERS b/pw_tls_client_boringssl/OWNERS
new file mode 100644
index 0000000..121c6f5
--- /dev/null
+++ b/pw_tls_client_boringssl/OWNERS
@@ -0,0 +1 @@
+zyecheng@google.com
diff --git a/pw_tls_client_mbedtls/OWNERS b/pw_tls_client_mbedtls/OWNERS
new file mode 100644
index 0000000..121c6f5
--- /dev/null
+++ b/pw_tls_client_mbedtls/OWNERS
@@ -0,0 +1 @@
+zyecheng@google.com
diff --git a/pw_tokenizer/OWNERS b/pw_tokenizer/OWNERS
new file mode 100644
index 0000000..d96cbc6
--- /dev/null
+++ b/pw_tokenizer/OWNERS
@@ -0,0 +1 @@
+hepler@google.com
diff --git a/pw_tool/OWNERS b/pw_tool/OWNERS
new file mode 100644
index 0000000..3afb926
--- /dev/null
+++ b/pw_tool/OWNERS
@@ -0,0 +1 @@
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diff --git a/pw_toolchain/OWNERS b/pw_toolchain/OWNERS
new file mode 100644
index 0000000..3afb926
--- /dev/null
+++ b/pw_toolchain/OWNERS
@@ -0,0 +1 @@
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diff --git a/pw_trace/OWNERS b/pw_trace/OWNERS
new file mode 100644
index 0000000..8819b2c
--- /dev/null
+++ b/pw_trace/OWNERS
@@ -0,0 +1 @@
+keir@google.com
diff --git a/pw_trace_tokenized/OWNERS b/pw_trace_tokenized/OWNERS
new file mode 100644
index 0000000..8819b2c
--- /dev/null
+++ b/pw_trace_tokenized/OWNERS
@@ -0,0 +1 @@
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diff --git a/pw_transfer/OWNERS b/pw_transfer/OWNERS
new file mode 100644
index 0000000..d96cbc6
--- /dev/null
+++ b/pw_transfer/OWNERS
@@ -0,0 +1 @@
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diff --git a/pw_unit_test/OWNERS b/pw_unit_test/OWNERS
new file mode 100644
index 0000000..3afb926
--- /dev/null
+++ b/pw_unit_test/OWNERS
@@ -0,0 +1 @@
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diff --git a/pw_varint/OWNERS b/pw_varint/OWNERS
new file mode 100644
index 0000000..3afb926
--- /dev/null
+++ b/pw_varint/OWNERS
@@ -0,0 +1 @@
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diff --git a/pw_watch/OWNERS b/pw_watch/OWNERS
new file mode 100644
index 0000000..4462823
--- /dev/null
+++ b/pw_watch/OWNERS
@@ -0,0 +1,2 @@
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+keir@google.com
diff --git a/pw_web_ui/OWNERS b/pw_web_ui/OWNERS
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/pw_web_ui/OWNERS
diff --git a/pw_work_queue/OWNERS b/pw_work_queue/OWNERS
new file mode 100644
index 0000000..21d24bc
--- /dev/null
+++ b/pw_work_queue/OWNERS
@@ -0,0 +1 @@
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diff --git a/targets/android/OWNERS b/targets/android/OWNERS
new file mode 100644
index 0000000..c224618
--- /dev/null
+++ b/targets/android/OWNERS
@@ -0,0 +1 @@
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diff --git a/targets/arduino/OWNERS b/targets/arduino/OWNERS
new file mode 100644
index 0000000..ca011e8
--- /dev/null
+++ b/targets/arduino/OWNERS
@@ -0,0 +1 @@
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diff --git a/targets/docs/OWNERS b/targets/docs/OWNERS
new file mode 100644
index 0000000..d96cbc6
--- /dev/null
+++ b/targets/docs/OWNERS
@@ -0,0 +1 @@
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diff --git a/targets/host/OWNERS b/targets/host/OWNERS
new file mode 100644
index 0000000..d96cbc6
--- /dev/null
+++ b/targets/host/OWNERS
@@ -0,0 +1 @@
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diff --git a/targets/lm3s6965evb_qemu/OWNERS b/targets/lm3s6965evb_qemu/OWNERS
new file mode 100644
index 0000000..307b1de
--- /dev/null
+++ b/targets/lm3s6965evb_qemu/OWNERS
@@ -0,0 +1 @@
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diff --git a/targets/stm32f429i_disc1/OWNERS b/targets/stm32f429i_disc1/OWNERS
new file mode 100644
index 0000000..307b1de
--- /dev/null
+++ b/targets/stm32f429i_disc1/OWNERS
@@ -0,0 +1 @@
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diff --git a/third_party/arduino/OWNERS b/third_party/arduino/OWNERS
new file mode 100644
index 0000000..ca011e8
--- /dev/null
+++ b/third_party/arduino/OWNERS
@@ -0,0 +1 @@
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diff --git a/third_party/boringssl/OWNERS b/third_party/boringssl/OWNERS
new file mode 100644
index 0000000..121c6f5
--- /dev/null
+++ b/third_party/boringssl/OWNERS
@@ -0,0 +1 @@
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diff --git a/third_party/chromium_verifier/OWNERS b/third_party/chromium_verifier/OWNERS
new file mode 100644
index 0000000..121c6f5
--- /dev/null
+++ b/third_party/chromium_verifier/OWNERS
@@ -0,0 +1 @@
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diff --git a/third_party/embos/OWNERS b/third_party/embos/OWNERS
new file mode 100644
index 0000000..21d24bc
--- /dev/null
+++ b/third_party/embos/OWNERS
@@ -0,0 +1 @@
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diff --git a/third_party/freertos/OWNERS b/third_party/freertos/OWNERS
new file mode 100644
index 0000000..21d24bc
--- /dev/null
+++ b/third_party/freertos/OWNERS
@@ -0,0 +1 @@
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diff --git a/third_party/googletest/OWNERS b/third_party/googletest/OWNERS
new file mode 100644
index 0000000..4653415
--- /dev/null
+++ b/third_party/googletest/OWNERS
@@ -0,0 +1,2 @@
+mohrr@google.com
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diff --git a/third_party/mbedtls/OWNERS b/third_party/mbedtls/OWNERS
new file mode 100644
index 0000000..121c6f5
--- /dev/null
+++ b/third_party/mbedtls/OWNERS
@@ -0,0 +1 @@
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diff --git a/third_party/mcuxpresso/OWNERS b/third_party/mcuxpresso/OWNERS
new file mode 100644
index 0000000..c224618
--- /dev/null
+++ b/third_party/mcuxpresso/OWNERS
@@ -0,0 +1 @@
+keybuk@google.com
diff --git a/third_party/micro_ecc/OWNERS b/third_party/micro_ecc/OWNERS
new file mode 100644
index 0000000..b01d16c
--- /dev/null
+++ b/third_party/micro_ecc/OWNERS
@@ -0,0 +1 @@
+alizhang@google.com
diff --git a/third_party/nanopb/OWNERS b/third_party/nanopb/OWNERS
new file mode 100644
index 0000000..3afb926
--- /dev/null
+++ b/third_party/nanopb/OWNERS
@@ -0,0 +1 @@
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diff --git a/third_party/protobuf/OWNERS b/third_party/protobuf/OWNERS
new file mode 100644
index 0000000..3afb926
--- /dev/null
+++ b/third_party/protobuf/OWNERS
@@ -0,0 +1 @@
+frolv@google.com
diff --git a/third_party/stm32cube/OWNERS b/third_party/stm32cube/OWNERS
new file mode 100644
index 0000000..fb4f20a
--- /dev/null
+++ b/third_party/stm32cube/OWNERS
@@ -0,0 +1 @@
+vars@google.com
diff --git a/third_party/threadx/OWNERS b/third_party/threadx/OWNERS
new file mode 100644
index 0000000..21d24bc
--- /dev/null
+++ b/third_party/threadx/OWNERS
@@ -0,0 +1 @@
+ewout@google.com