diff --git a/LICENSE.txt b/LICENSE.txt
index d85a1524ad..0bdc1962b6 100644
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -1,4 +1,4 @@
-Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+Copyright (c) .NET Foundation. All rights reserved.
 
 Licensed under the Apache License, Version 2.0 (the "License"); you may not use
 these files except in compliance with the License. You may obtain a copy of the
diff --git a/src/Microsoft.AspNet.WebSockets.Client/Constants.cs b/src/Microsoft.AspNet.WebSockets.Client/Constants.cs
index 0178e7d75f..7cc48a9baf 100644
--- a/src/Microsoft.AspNet.WebSockets.Client/Constants.cs
+++ b/src/Microsoft.AspNet.WebSockets.Client/Constants.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 namespace Microsoft.AspNet.WebSockets.Client
diff --git a/src/Microsoft.AspNet.WebSockets.Client/Properties/AssemblyInfo.cs b/src/Microsoft.AspNet.WebSockets.Client/Properties/AssemblyInfo.cs
index f5c6f4a83a..025a94598c 100644
--- a/src/Microsoft.AspNet.WebSockets.Client/Properties/AssemblyInfo.cs
+++ b/src/Microsoft.AspNet.WebSockets.Client/Properties/AssemblyInfo.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System.Reflection;
diff --git a/src/Microsoft.AspNet.WebSockets.Client/WebSocketClient.cs b/src/Microsoft.AspNet.WebSockets.Client/WebSocketClient.cs
index f886e53987..3ba9c3963f 100644
--- a/src/Microsoft.AspNet.WebSockets.Client/WebSocketClient.cs
+++ b/src/Microsoft.AspNet.WebSockets.Client/WebSocketClient.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
diff --git a/src/Microsoft.AspNet.WebSockets.Protocol/CommonWebSocket.cs b/src/Microsoft.AspNet.WebSockets.Protocol/CommonWebSocket.cs
index c6d82a573b..ea74b29133 100644
--- a/src/Microsoft.AspNet.WebSockets.Protocol/CommonWebSocket.cs
+++ b/src/Microsoft.AspNet.WebSockets.Protocol/CommonWebSocket.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
diff --git a/src/Microsoft.AspNet.WebSockets.Protocol/Constants.cs b/src/Microsoft.AspNet.WebSockets.Protocol/Constants.cs
index 60a9340b67..80a3bf8983 100644
--- a/src/Microsoft.AspNet.WebSockets.Protocol/Constants.cs
+++ b/src/Microsoft.AspNet.WebSockets.Protocol/Constants.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 namespace Microsoft.AspNet.WebSockets.Protocol
diff --git a/src/Microsoft.AspNet.WebSockets.Protocol/FrameHeader.cs b/src/Microsoft.AspNet.WebSockets.Protocol/FrameHeader.cs
index 5d9d693763..749bf13d68 100644
--- a/src/Microsoft.AspNet.WebSockets.Protocol/FrameHeader.cs
+++ b/src/Microsoft.AspNet.WebSockets.Protocol/FrameHeader.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
diff --git a/src/Microsoft.AspNet.WebSockets.Protocol/HandshakeHelpers.cs b/src/Microsoft.AspNet.WebSockets.Protocol/HandshakeHelpers.cs
index f8e3c22712..15998f2afd 100644
--- a/src/Microsoft.AspNet.WebSockets.Protocol/HandshakeHelpers.cs
+++ b/src/Microsoft.AspNet.WebSockets.Protocol/HandshakeHelpers.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
diff --git a/src/Microsoft.AspNet.WebSockets.Protocol/Utilities.cs b/src/Microsoft.AspNet.WebSockets.Protocol/Utilities.cs
index 7b0b3186da..385f4003a0 100644
--- a/src/Microsoft.AspNet.WebSockets.Protocol/Utilities.cs
+++ b/src/Microsoft.AspNet.WebSockets.Protocol/Utilities.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
diff --git a/src/Microsoft.AspNet.WebSockets.Server/ExtendedWebSocketAcceptContext.cs b/src/Microsoft.AspNet.WebSockets.Server/ExtendedWebSocketAcceptContext.cs
index e0377b7d4b..8b7d901aaf 100644
--- a/src/Microsoft.AspNet.WebSockets.Server/ExtendedWebSocketAcceptContext.cs
+++ b/src/Microsoft.AspNet.WebSockets.Server/ExtendedWebSocketAcceptContext.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
diff --git a/src/Microsoft.AspNet.WebSockets.Server/Properties/AssemblyInfo.cs b/src/Microsoft.AspNet.WebSockets.Server/Properties/AssemblyInfo.cs
index f5c6f4a83a..025a94598c 100644
--- a/src/Microsoft.AspNet.WebSockets.Server/Properties/AssemblyInfo.cs
+++ b/src/Microsoft.AspNet.WebSockets.Server/Properties/AssemblyInfo.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System.Reflection;
diff --git a/src/Microsoft.AspNet.WebSockets.Server/WebSocketMiddleware.cs b/src/Microsoft.AspNet.WebSockets.Server/WebSocketMiddleware.cs
index 0dc597bf0f..7432567bb0 100644
--- a/src/Microsoft.AspNet.WebSockets.Server/WebSocketMiddleware.cs
+++ b/src/Microsoft.AspNet.WebSockets.Server/WebSocketMiddleware.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
diff --git a/src/Microsoft.AspNet.WebSockets.Server/WebSocketMiddlewareExtensions.cs b/src/Microsoft.AspNet.WebSockets.Server/WebSocketMiddlewareExtensions.cs
index 91c69080ba..c676331771 100644
--- a/src/Microsoft.AspNet.WebSockets.Server/WebSocketMiddlewareExtensions.cs
+++ b/src/Microsoft.AspNet.WebSockets.Server/WebSocketMiddlewareExtensions.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using Microsoft.AspNet.WebSockets.Server;
diff --git a/src/Microsoft.AspNet.WebSockets.Server/WebSocketOptions.cs b/src/Microsoft.AspNet.WebSockets.Server/WebSocketOptions.cs
index 5f46a23558..09a155da46 100644
--- a/src/Microsoft.AspNet.WebSockets.Server/WebSocketOptions.cs
+++ b/src/Microsoft.AspNet.WebSockets.Server/WebSocketOptions.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
diff --git a/test/AutobahnTestClient/Program.cs b/test/AutobahnTestClient/Program.cs
index 15300f825b..67df22e3ff 100644
--- a/test/AutobahnTestClient/Program.cs
+++ b/test/AutobahnTestClient/Program.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
diff --git a/test/AutobahnTestServer/Startup.cs b/test/AutobahnTestServer/Startup.cs
index 34ff549764..bd69da7644 100644
--- a/test/AutobahnTestServer/Startup.cs
+++ b/test/AutobahnTestServer/Startup.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
diff --git a/test/Microsoft.AspNet.WebSockets.Client.Test/KestrelWebSocketHelpers.cs b/test/Microsoft.AspNet.WebSockets.Client.Test/KestrelWebSocketHelpers.cs
index 11474e5221..ea019f256b 100644
--- a/test/Microsoft.AspNet.WebSockets.Client.Test/KestrelWebSocketHelpers.cs
+++ b/test/Microsoft.AspNet.WebSockets.Client.Test/KestrelWebSocketHelpers.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
diff --git a/test/Microsoft.AspNet.WebSockets.Client.Test/WebSocketClientTests.cs b/test/Microsoft.AspNet.WebSockets.Client.Test/WebSocketClientTests.cs
index eecb1adf50..9f298a9dbb 100644
--- a/test/Microsoft.AspNet.WebSockets.Client.Test/WebSocketClientTests.cs
+++ b/test/Microsoft.AspNet.WebSockets.Client.Test/WebSocketClientTests.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
diff --git a/test/Microsoft.AspNet.WebSockets.Protocol.Test/BufferStream.cs b/test/Microsoft.AspNet.WebSockets.Protocol.Test/BufferStream.cs
index 604aea7671..556bb42052 100644
--- a/test/Microsoft.AspNet.WebSockets.Protocol.Test/BufferStream.cs
+++ b/test/Microsoft.AspNet.WebSockets.Protocol.Test/BufferStream.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
+// Copyright (c) .NET Foundation. All rights reserved. See License.txt in the project root for license information.
 
 using System;
 using System.Collections.Concurrent;
diff --git a/test/Microsoft.AspNet.WebSockets.Protocol.Test/DuplexStream.cs b/test/Microsoft.AspNet.WebSockets.Protocol.Test/DuplexStream.cs
index bfada4b0ab..102ccbd0c3 100644
--- a/test/Microsoft.AspNet.WebSockets.Protocol.Test/DuplexStream.cs
+++ b/test/Microsoft.AspNet.WebSockets.Protocol.Test/DuplexStream.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
+// Copyright (c) .NET Foundation. All rights reserved. See License.txt in the project root for license information.
 
 using System;
 using System.IO;
diff --git a/test/Microsoft.AspNet.WebSockets.Protocol.Test/DuplexTests.cs b/test/Microsoft.AspNet.WebSockets.Protocol.Test/DuplexTests.cs
index 5e0c4473dd..2e5cc15d83 100644
--- a/test/Microsoft.AspNet.WebSockets.Protocol.Test/DuplexTests.cs
+++ b/test/Microsoft.AspNet.WebSockets.Protocol.Test/DuplexTests.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
diff --git a/test/Microsoft.AspNet.WebSockets.Protocol.Test/Utf8ValidationTests.cs b/test/Microsoft.AspNet.WebSockets.Protocol.Test/Utf8ValidationTests.cs
index ffd990b5e2..f42339a77f 100644
--- a/test/Microsoft.AspNet.WebSockets.Protocol.Test/Utf8ValidationTests.cs
+++ b/test/Microsoft.AspNet.WebSockets.Protocol.Test/Utf8ValidationTests.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
diff --git a/test/Microsoft.AspNet.WebSockets.Protocol.Test/UtilitiesTests.cs b/test/Microsoft.AspNet.WebSockets.Protocol.Test/UtilitiesTests.cs
index ca07522b04..9f221f197b 100644
--- a/test/Microsoft.AspNet.WebSockets.Protocol.Test/UtilitiesTests.cs
+++ b/test/Microsoft.AspNet.WebSockets.Protocol.Test/UtilitiesTests.cs
@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved.
+// Copyright (c) .NET Foundation. All rights reserved.
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;