diff --git a/.travis.yml b/.travis.yml
index fe2a4dc2f..0bec5da85 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -37,8 +37,9 @@ env:
     - ROS_DISTRO=indigo PRERELEASE=true USE_MOCKUP='industrial_ci/mockups/failing_test' EXPECT_EXIT_CODE=1
     - ROS_DISTRO=kinetic PRERELEASE=true PRERELEASE_REPONAME=industrial_ci
     - ROS_DISTRO=indigo APTKEY_STORE_SKS=hkp://ha.pool.sks-keyservers.vet  # Passing wrong SKS URL as a break test. Should still pass.
-    - ROS_DISTRO=indigo UPSTREAM_WORKSPACE=debian
-    - ROS_DISTRO=indigo UPSTREAM_WORKSPACE=file  # Using default file name for ROSINSTALL_FILENAME
+    - ROS_DISTRO=indigo UPSTREAM_WORKSPACE=debian AFTER_SCRIPT='ccache 2> /dev/null && exit 1; [ "$?" = "127" ]'
+     # Using default file name for ROSINSTALL_FILENAME, test CCACHE, verify cache was filled
+    - ROS_DISTRO=indigo UPSTREAM_WORKSPACE=file CCACHE_DIR=$HOME/.ccache AFTER_SCRIPT='num=($(ccache -s | grep "files in cache")) && (( num[-1] > 0 ))'
     - ROS_DISTRO=indigo UPSTREAM_WORKSPACE=file USE_DEB=true  # Expected to fail. See https://github.com/ros-industrial/industrial_ci/pull/74
     - ROS_DISTRO=indigo UPSTREAM_WORKSPACE=https://raw.githubusercontent.com/ros-industrial/industrial_ci/master/.travis.rosinstall
     - ROS_DISTRO=indigo USE_DEB=true  # Checking backup compatibility with UPSTREAM_WORKSPACE
diff --git a/doc/index.rst b/doc/index.rst
index 666a82fec..ba8d29101 100644
--- a/doc/index.rst
+++ b/doc/index.rst
@@ -157,6 +157,7 @@ Note that some of these currently tied only to a single option, but we still lea
 * `CATKIN_CONFIG` (default: not set): `catkin config --install` is used by default and with this variable you can 1) pass additional config options, or 2) overwrite `--install` by `--no-install`. See more in `this section <https://github.com/ros-industrial/industrial_ci/blob/master/doc/index.rst#optional-customize-catkin-config>`_.
 * `CATKIN_PARALLEL_JOBS` (default: -p4): Maximum number of packages to be built in parallel that is passed to underlining build tool. As of Jan 2016, this is only enabled with `catkin_tools`. See for more detail about `number of build jobs <http://catkin-tools.readthedocs.org/en/latest/verbs/catkin_build.html#controlling-the-number-of-build-jobs>`_ and `documentation of catkin_tools <https://catkin-tools.readthedocs.org/en/latest/verbs/catkin_build.html#full-command-line-interface>`_ that this env variable is passed to internally in `catkin-tools`.
 * `CATKIN_PARALLEL_TEST_JOBS` (default: -p4): Maximum number of packages which could be examined in parallel during the test run. If not set it's filled by `ROS_PARALLEL_JOBS`.
+* `CCACHE_DIR` (default: not set): If set, `ccache <https://en.wikipedia.org/wiki/Ccache>`_ gets enabled for your build to speed up the subsequent builds in the same job if anything. See `detail. <https://github.com/ros-industrial/industrial_ci/blob/master/doc/index.rst#run-pre-install-custom-commands>`_
 * `CI_PARENT_DIR` (default: .ci_config): (NOT recommended to specify) This is the folder name that is used in downstream repositories in order to point to this repo.
 * `DOCKER_IMAGE` (default: not set): Selects a Docker images different from default one. Please note, this disables the handling of `ROS_REPOSITORY_PATH` and `ROS_DISTRO` as ROS needs already to be installed in the image.
 * `DOCKER_FILE` (default: not set): Instead of pulling an images from the Docker hub, build it from the given path or URL. Please note, this disables the handling of `ROS_REPOSITORY_PATH` and `ROS_DISTRO`, they have to be set in the build file instead.
@@ -249,6 +250,37 @@ Reference:
  * `Discussion about install space <https://github.com/ros-industrial/industrial_ci/issues/54>`_
  * `Detail for catkin config <http://catkin-tools.readthedocs.io/en/latest/verbs/catkin_config.html>`_ for more info about `catkin-tools`.
 
+Cache build artifacts to speed up the subsequent builds (if any)
+----------------------------------------------------------------
+
+If `CCACHE_DIR` is set (not set by default), `ccache <https://en.wikipedia.org/wiki/Ccache>`_ gets enabled for your build to speed up the subsequent builds in the same job if anything.
+Recommended value is `$HOME/.ccache`, but any non-used directory works.
+
+https://docs.travis-ci.com/user/caching/#Arbitrary-directories
+
+ * Enable cache. How to do so depends on the CI system of your choice.
+
+   On Travis CI, add as follows (`refrence <https://docs.travis-ci.com/user/caching/#Arbitrary-directories>`_)::
+
+    cache:
+      directories:
+        - $HOME/.ccache  # can be any valid cache location
+  
+
+ * Define `CCACHE_DIR` variable. You can apply to all of your jobs by something like below::
+
+  env:
+    global:
+      - CCACHE_DIR=$HOME/.ccache
+    matrix:
+      :
+
+Or define `CCACHE_DIR` per job.
+
+NOTE:
+  * Beware, if you use `run_ci <https://github.com/ros-industrial/industrial_ci/blob/master/doc/index.rst#id39>`_, the files will be owned by root!
+  * Caching may not work for packages with "smaller" number of files (see also `this discussion <https://github.com/ros-industrial/industrial_ci/pull/182>`_).
+    
 Add repository-specific CI config in addition
 ----------------------------------------------------------------
 
diff --git a/industrial_ci/src/docker.sh b/industrial_ci/src/docker.sh
index 486a587fd..b64b0f8ce 100644
--- a/industrial_ci/src/docker.sh
+++ b/industrial_ci/src/docker.sh
@@ -60,20 +60,23 @@ function ici_require_run_in_docker() {
 #   (None)
 #######################################
 function ici_run_cmd_in_docker() {
+  local run_opts=($DOCKER_RUN_OPTS)
+
   #forward ssh agent into docker container
  local ssh_docker_opts=()
   if [ "$SSH_AUTH_SOCK" ]; then
      local auth_dir
      auth_dir=$(dirname "$SSH_AUTH_SOCK")
-     ssh_docker_opts=(-v "$auth_dir:$auth_dir" -e "SSH_AUTH_SOCK=$SSH_AUTH_SOCK")
+     run_opts+=(-v "$auth_dir:$auth_dir" -e "SSH_AUTH_SOCK=$SSH_AUTH_SOCK")
   fi
 
-  local run_opts=($DOCKER_RUN_OPTS)
+  if [ "$CCACHE_DIR" ]; then
+     run_opts+=(-v "$CCACHE_DIR:/root/.ccache" -e CCACHE_DIR=/root/.ccache)
+  fi
 
   local cid
   cid=$(docker create \
       --env-file "${ICI_SRC_PATH}"/docker.env \
-      "${ssh_docker_opts[@]}" \
       "${run_opts[@]}" \
       "$@")
   if [ -d ~/.ssh ]; then
diff --git a/industrial_ci/src/tests/source_tests.sh b/industrial_ci/src/tests/source_tests.sh
index 1112c34dc..7c0b45118 100644
--- a/industrial_ci/src/tests/source_tests.sh
+++ b/industrial_ci/src/tests/source_tests.sh
@@ -40,17 +40,24 @@ function catkin {
   /usr/bin/catkin "$cmd" -w "$CATKIN_WORKSPACE" "$@"
 }
 
-ici_time_start setup_ros
+ici_time_start setup_apt
 
 sudo apt-get update -qq
 
 # If more DEBs needed during preparation, define ADDITIONAL_DEBS variable where you list the name of DEB(S, delimitted by whitespace)
 if [ "$ADDITIONAL_DEBS" ]; then
-    sudo apt-get install -q -qq -y $ADDITIONAL_DEBS || error "One or more additional deb installation is failed. Exiting."
+    sudo apt-get install -qq -y $ADDITIONAL_DEBS || error "One or more additional deb installation is failed. Exiting."
 fi
 source /opt/ros/$ROS_DISTRO/setup.bash
 
-ici_time_end  # setup_ros
+ici_time_end  # setup_apt
+
+if [ "$CCACHE_DIR" ]; then
+    ici_time_start setup_ccache
+    sudo apt-get install -qq -y ccache || error "Could not install ccache. Exiting."
+    export PATH="/usr/lib/ccache:$PATH"
+    ici_time_end  # setup_ccache
+fi
 
 ici_time_start setup_rosdep