diff --git a/sim/src/caps.rs b/sim/src/caps.rs
index 639894b..a63a343 100644
--- a/sim/src/caps.rs
+++ b/sim/src/caps.rs
@@ -1,3 +1,9 @@
+// Copyright (c) 2017-2019 Linaro LTD
+// Copyright (c) 2019 JUUL Labs
+// Copyright (c) 2019 Arm Limited
+//
+// SPDX-License-Identifier: Apache-2.0
+
 // Query the bootloader's capabilities.
 
 #[repr(u32)]
diff --git a/sim/src/depends.rs b/sim/src/depends.rs
index eecee08..57b4bad 100644
--- a/sim/src/depends.rs
+++ b/sim/src/depends.rs
@@ -1,3 +1,7 @@
+// Copyright (c) 2019 Linaro LTD
+//
+// SPDX-License-Identifier: Apache-2.0
+
 //! Support and tests related to the dependency management for multi-image
 //! support.
 
diff --git a/sim/src/image.rs b/sim/src/image.rs
index fe97f12..9c24a3e 100644
--- a/sim/src/image.rs
+++ b/sim/src/image.rs
@@ -1,3 +1,9 @@
+// Copyright (c) 2019 Linaro LTD
+// Copyright (c) 2019-2020 JUUL Labs
+// Copyright (c) 2019 Arm Limited
+//
+// SPDX-License-Identifier: Apache-2.0
+
 use byteorder::{
     LittleEndian, WriteBytesExt,
 };
diff --git a/sim/src/lib.rs b/sim/src/lib.rs
index dba7cb0..4e2f6c3 100644
--- a/sim/src/lib.rs
+++ b/sim/src/lib.rs
@@ -1,3 +1,9 @@
+// Copyright (c) 2017-2019 Linaro LTD
+// Copyright (c) 2017-2019 JUUL Labs
+// Copyright (c) 2019 Arm Limited
+//
+// SPDX-License-Identifier: Apache-2.0
+
 use docopt::Docopt;
 use log::{warn, error};
 use std::{
diff --git a/sim/src/main.rs b/sim/src/main.rs
index d687483..fd5c016 100644
--- a/sim/src/main.rs
+++ b/sim/src/main.rs
@@ -1,3 +1,8 @@
+// Copyright (c) 2017-2019 Linaro LTD
+// Copyright (c) 2017-2019 JUUL Labs
+//
+// SPDX-License-Identifier: Apache-2.0
+
 use env_logger;
 
 use bootsim;
diff --git a/sim/src/testlog.rs b/sim/src/testlog.rs
index 8d3d267..16cd256 100644
--- a/sim/src/testlog.rs
+++ b/sim/src/testlog.rs
@@ -1,3 +1,8 @@
+// Copyright (c) 2017 Linaro LTD
+// Copyright (c) 2019 JUUL Labs
+//
+// SPDX-License-Identifier: Apache-2.0
+
 //! Logging support for the test framework.
 //!
 //! https://stackoverflow.com/questions/30177845/how-to-initialize-the-logger-for-integration-tests
diff --git a/sim/src/tlv.rs b/sim/src/tlv.rs
index fa2fa7e..4fbafd4 100644
--- a/sim/src/tlv.rs
+++ b/sim/src/tlv.rs
@@ -1,3 +1,8 @@
+// Copyright (c) 2017-2020 Linaro LTD
+// Copyright (c) 2017-2020 JUUL Labs
+//
+// SPDX-License-Identifier: Apache-2.0
+
 //! TLV Support
 //!
 //! mcuboot images are followed immediately by a list of TLV items that contain integrity