diff --git a/README.md b/README.md
index a22a4ddfc..4ffab7a3d 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@ More information about Thread can be found at [threadgroup.org](http://threadgro
 
 Led by Nest, the following companies are contributing to the ongoing development of OpenThread:
 
-<a href="https://www.arm.com/"><img src="doc/images/ot-contrib-arm.png" alt="ARM" width="150px"></a><a href="http://www.dialog-semiconductor.com/"><img src="doc/images/ot-contrib-dialog.png" alt="Dialog" width="150px"></a><a href="https://www.microsoft.com/en-us/"><img src="doc/images/ot-contrib-ms.png" alt="Microsoft" width="150px"></a><a href="https://nest.com/"><img src="doc/images/ot-contrib-nest.png" alt="Nest" width="150px"></a><a href="http://www.nordicsemi.com/"><img src="doc/images/ot-contrib-nordic.png" alt="Nordic" width="150px"></a><a href="http://www.nxp.com/"><img src="doc/images/ot-contrib-nxp.png" alt="NXP" width="150px"></a><a href="http://www.qorvo.com/"><img src="doc/images/ot-contrib-qorvo.png" alt="Qorvo" width="150px"></a><a href="https://www.qualcomm.com/"><img src="doc/images/ot-contrib-qc.png" alt="Qualcomm" width="150px"></a><a href="https://www.synopsys.com/"><img src="doc/images/ot-contrib-synopsys.png" alt="Synopsys" width="150px"></a><a href="https://www.ti.com/"><img src="doc/images/ot-contrib-ti.png" alt="Texas Instruments" width="150px"></a>
+<a href="https://developer.android.com/things/index.html"><img src="doc/images/ot-contrib-at.png" alt="Android Things" width="200px"></a><a href="https://www.arm.com/"><img src="doc/images/ot-contrib-arm.png" alt="ARM" width="200px"></a><a href="http://www.dialog-semiconductor.com/"><img src="doc/images/ot-contrib-dialog.png" alt="Dialog" width="200px"></a><a href="https://www.microsoft.com/en-us/"><img src="doc/images/ot-contrib-ms.png" alt="Microsoft" width="200px"></a><br /><a href="https://nest.com/"><img src="doc/images/ot-contrib-nest.png" alt="Nest" width="200px"></a><a href="http://www.nordicsemi.com/"><img src="doc/images/ot-contrib-nordic.png" alt="Nordic" width="200px"></a><a href="http://www.nxp.com/"><img src="doc/images/ot-contrib-nxp.png" alt="NXP" width="200px"></a><a href="http://www.qorvo.com/"><img src="doc/images/ot-contrib-qorvo.png" alt="Qorvo" width="200px"></a><br /><a href="https://www.qualcomm.com/"><img src="doc/images/ot-contrib-qc.png" alt="Qualcomm" width="200px"></a><a href="https://www.synopsys.com/"><img src="doc/images/ot-contrib-synopsys.png" alt="Synopsys" width="200px"></a><a href="https://www.ti.com/"><img src="doc/images/ot-contrib-ti.png" alt="Texas Instruments" width="200px"></a>
 
 # Getting started
 
diff --git a/doc/Makefile.am b/doc/Makefile.am
index 3272f6407..a8d25eb13 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -32,8 +32,18 @@ EXTRA_DIST                                      = \
     $(srcdir)/Doxyfile.in                         \
     $(srcdir)/header.html                         \
     $(srcdir)/images/Open-Thread-Logo-200x42.png  \
-    $(srcdir)/images/openthread_contrib.png       \
     $(srcdir)/images/openthread_logo.png          \
+    $(srcdir)/images/ot-contrib-arm.png           \
+    $(srcdir)/images/ot-contrib-at.png            \
+    $(srcdir)/images/ot-contrib-dialog.png        \
+    $(srcdir)/images/ot-contrib-ms.png            \
+    $(srcdir)/images/ot-contrib-nest.png          \
+    $(srcdir)/images/ot-contrib-nordic.png        \
+    $(srcdir)/images/ot-contrib-nxp.png           \
+    $(srcdir)/images/ot-contrib-qc.png            \
+    $(srcdir)/images/ot-contrib-qorvo.png         \
+    $(srcdir)/images/ot-contrib-synopsys.png      \
+    $(srcdir)/images/ot-contrib-ti.png            \
     draft-rquattle-spinel-unified.html            \
     draft-rquattle-spinel-unified.txt             \
     $(NULL)
diff --git a/doc/images/openthread_contrib.png b/doc/images/openthread_contrib.png
deleted file mode 100644
index 73d80f390..000000000
Binary files a/doc/images/openthread_contrib.png and /dev/null differ
diff --git a/doc/images/ot-codelab.png b/doc/images/ot-codelab.png
deleted file mode 100644
index d1a49d6c3..000000000
Binary files a/doc/images/ot-codelab.png and /dev/null differ
diff --git a/doc/images/ot-contrib-atmel.png b/doc/images/ot-contrib-at.png
similarity index 63%
rename from doc/images/ot-contrib-atmel.png
rename to doc/images/ot-contrib-at.png
index 878322f71..438a4a0f3 100644
Binary files a/doc/images/ot-contrib-atmel.png and b/doc/images/ot-contrib-at.png differ