diff --git a/aaelf32/aaelf32.rst b/aaelf32/aaelf32.rst
index 6cb93d1..85aba1a 100644
--- a/aaelf32/aaelf32.rst
+++ b/aaelf32/aaelf32.rst
@@ -980,6 +980,8 @@ potential for conflicts.
   +-------------------+---------------------------------------------------------------------+
   | ``llvm``          | The LLVM/Clang projects                                             |
   +-------------------+---------------------------------------------------------------------+
+  | ``mchp``          | Microchip Technology Inc.                                           |
+  +-------------------+---------------------------------------------------------------------+
   | ``PSI``           | PalmSource Inc.                                                     |
   +-------------------+---------------------------------------------------------------------+
   | ``RAL``           | Rowley Associates Ltd                                               |
diff --git a/aaelf64/aaelf64.rst b/aaelf64/aaelf64.rst
index d0a8e1c..01844e5 100644
--- a/aaelf64/aaelf64.rst
+++ b/aaelf64/aaelf64.rst
@@ -531,6 +531,8 @@ Various symbols and names may require a vendor-specific name to avoid the potent
     +------------------+--------------------------------------------------------------------------------------------------------------+
     | llvm             | The LLVM/Clang projects                                                                                      |
     +------------------+--------------------------------------------------------------------------------------------------------------+
+    | mchp             | Microchip Technology Inc.                                                                                    |
+    +------------------+--------------------------------------------------------------------------------------------------------------+
     | PSI              | PalmSource Inc.                                                                                              |
     +------------------+--------------------------------------------------------------------------------------------------------------+
     | RAL              | Rowley Associates Ltd                                                                                        |
diff --git a/addenda32/vendor-table.txt b/addenda32/vendor-table.txt
index d1c0890..d371e66 100644
--- a/addenda32/vendor-table.txt
+++ b/addenda32/vendor-table.txt
@@ -34,6 +34,8 @@
   +-----------------+---------------------------------------------------------------------+
   | ``llvm``        | The LLVM/Clang projects                                             |
   +-----------------+---------------------------------------------------------------------+
+  | ``mchp``        | Microchip Technology Inc.                                           |
+  +-----------------+---------------------------------------------------------------------+
   | ``PSI``         | PalmSource Inc.                                                     |
   +-----------------+---------------------------------------------------------------------+
   | ``RAL``         | Rowley Associates Ltd                                               |
diff --git a/clibabi32/vendor-table.txt b/clibabi32/vendor-table.txt
index d1c0890..d371e66 100644
--- a/clibabi32/vendor-table.txt
+++ b/clibabi32/vendor-table.txt
@@ -34,6 +34,8 @@
   +-----------------+---------------------------------------------------------------------+
   | ``llvm``        | The LLVM/Clang projects                                             |
   +-----------------+---------------------------------------------------------------------+
+  | ``mchp``        | Microchip Technology Inc.                                           |
+  +-----------------+---------------------------------------------------------------------+
   | ``PSI``         | PalmSource Inc.                                                     |
   +-----------------+---------------------------------------------------------------------+
   | ``RAL``         | Rowley Associates Ltd                                               |
diff --git a/rtabi32/rtabi32.rst b/rtabi32/rtabi32.rst
index 2d11746..ae1e742 100644
--- a/rtabi32/rtabi32.rst
+++ b/rtabi32/rtabi32.rst
@@ -645,6 +645,8 @@ given in the following table.
   +-------------------+---------------------------------------------------------------------+
   | ``llvm``          | The LLVM/Clang projects                                             |
   +-------------------+---------------------------------------------------------------------+
+  | ``mchp``          | Microchip Technology Inc.                                           |
+  +-------------------+---------------------------------------------------------------------+
   | ``PSI``           | PalmSource Inc.                                                     |
   +-------------------+---------------------------------------------------------------------+
   | ``RAL``           | Rowley Associates Ltd                                               |