diff --git a/README.md b/README.md
index 640dc2f2..27fcedff 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,9 @@ It's the nickname for our Special Projects team at Automattic.
 
 Be well, be kind, make things and set them free.
 
+## Dependencies
+- Composer (instructions below)
+
 ## Installation
 1. Open the Terminal on your Mac and clone this repository by running:
     - `git clone git@github.com:Automattic/team51-cli.git`
@@ -59,6 +62,9 @@ If you get the error `./install-osx: line 2: composer: command not found`, you c
 ### `brew: command not found`
 If you don't have [brew](https://brew.sh/) yet, install it by executing this from your Terminal: `/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"` — Tip: you can use brew to install all sort of apps on your Mac. Give it [a try](https://formulae.brew.sh/cask/zoom)
 
+### `gh: command not found`
+If you're onboarding/offboarding users, you will need access to Github CLI. Please refer to the [installation instructions](https://cli.github.com/), and then follow the instructions on the Terminal for authentication.
+
 ### `Warning: file_get_contents: failed to open stream`
 ```
 Warning: file_get_contents(/Users/.../team51-cli/config.json): failed to open stream: No such file or directory in /Users/.../team51-cli/src/helpers/config-loader.php on line 5
diff --git a/load-application.php b/load-application.php
index 960c4eb5..76a9d48e 100644
--- a/load-application.php
+++ b/load-application.php
@@ -31,6 +31,7 @@
 $application->add( new Team51\Command\Plugin_List() );
 $application->add( new Team51\Command\Pressable_Generate_Token() );
 $application->add( new Team51\Command\Pressable_Grant_Access() );
-
+$application->add( new Team51\Command\Github_Team_Add_User() );
+$application->add( new Team51\Command\Github_Team_Add_Repos() );
 
 $application->run();
diff --git a/src/commands/create-repository.php b/src/commands/create-repository.php
index 46bd19bd..5ff53112 100644
--- a/src/commands/create-repository.php
+++ b/src/commands/create-repository.php
@@ -3,6 +3,7 @@
 namespace Team51\Command;
 
 use Team51\Helper\API_Helper;
+use Team51\Helper\DRY_Helper;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Input\ArrayInput;
 use Symfony\Component\Console\Input\InputOption;
@@ -35,6 +36,7 @@ protected function execute( InputInterface $input, OutputInterface $output ) {
 		$filesystem = new Filesystem();
 
 		$api_helper = new API_Helper();
+		$dry_helper = new DRY_Helper();
 
 		if ( empty( $input->getOption( 'repo-slug' ) ) ) {
 			$output->writeln( '<error>You must pass a repository slug with --repo-slug.</error>' );
@@ -167,6 +169,14 @@ protected function execute( InputInterface $input, OutputInterface $output ) {
 			//exit;
 		}
 
+		// Adding repo to all required teams
+		// TODO: TEST
+		$output->writeln( "<info>Adding '{$slug}' to the corresponding Github Teams.</info>" );
+		$repo_names = array( $slug );
+		$dry_helper->populate_team_with_repos( $repo_names, $dry_helper->GH_ACCESS_1['team_slug'], $dry_helper->GH_ACCESS_1['team_permission'] );
+		$dry_helper->populate_team_with_repos( $repo_names, $dry_helper->GH_ACCESS_2['team_slug'], $dry_helper->GH_ACCESS_2['team_permission'] );
+		$dry_helper->populate_team_with_repos( $repo_names, $dry_helper->GH_ACCESS_3['team_slug'], $dry_helper->GH_ACCESS_3['team_permission'] );
+
 		$ssh_url  = $response->ssh_url;
 		$html_url = $response->html_url;
 
diff --git a/src/commands/github-repos-to-teams.php b/src/commands/github-repos-to-teams.php
new file mode 100644
index 00000000..44abfd3f
--- /dev/null
+++ b/src/commands/github-repos-to-teams.php
@@ -0,0 +1,61 @@
+<?php
+
+namespace Team51\Command;
+
+use Team51\Helper\API_Helper;
+use Team51\Helper\DRY_Helper;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+
+class Github_Team_Add_Repos extends Command {
+	protected static $defaultName = 'github-team-add-repos';
+	private $api_helper;
+	private $output;
+
+	protected function configure() {
+		$this
+		->setDescription( 'Add all Repositories to all GitHub Teams in the organization, with the respective repo permission.' )
+		->setHelp( 'Add all repos to our Github teams. Most-likely to be run only once, for the creation of the teams' );
+	}
+
+	protected function execute( InputInterface $input, OutputInterface $output ) {
+		$this->api_helper = new API_Helper();
+		$this->dry_helper = new DRY_Helper();
+		$this->output     = $output;
+
+		$output->writeln( "<comment>Pulling all repositories from our Github organization.</comment>" );
+		$repos       = array();
+		$repos_page  = 1;
+		$more_repos  = true;
+		
+		while( $more_repos ) {
+			$this->output->writeln( "<comment>...</comment>" );
+			$tmp_repos = $this->api_helper->call_github_api(
+				sprintf( 'orgs/%s/repos?type=private&per_page=100&page=%s', GITHUB_API_OWNER, $repos_page ),
+				'',
+				'GET'
+			);
+
+			if ( empty($tmp_repos) ) {
+				$more_repos = false;
+				break;
+			}
+
+			$repos = array_merge($repos, $tmp_repos);
+			$repos_page++;
+		}
+
+		$repo_names = array_column( $repos, 'name' );
+		$total_repos = count($repo_names);
+		$output->writeln( "<comment>{$total_repos} repositories will be added to each of our Github Teams.</comment>" );
+
+		// Populate Teams with Repositories
+		$this->dry_helper->populate_team_with_repos( $repo_names, $this->dry_helper->GH_ACCESS_1['team_slug'], $this->dry_helper->GH_ACCESS_1['team_permission'] );
+		$this->dry_helper->populate_team_with_repos( $repo_names, $this->dry_helper->GH_ACCESS_2['team_slug'], $this->dry_helper->GH_ACCESS_2['team_permission'] );
+		$this->dry_helper->populate_team_with_repos( $repo_names, $this->dry_helper->GH_ACCESS_3['team_slug'], $this->dry_helper->GH_ACCESS_3['team_permission'] );
+
+		$output->writeln( "<comment>All done.</comment>" );
+	}
+}
diff --git a/src/commands/github-team-add-user.php b/src/commands/github-team-add-user.php
new file mode 100644
index 00000000..a4c47860
--- /dev/null
+++ b/src/commands/github-team-add-user.php
@@ -0,0 +1,76 @@
+<?php
+
+namespace Team51\Command;
+
+use Team51\Helper\API_Helper;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class Github_Team_Add_User extends Command {
+	protected static $defaultName = 'github-team-add-user';
+	private $api_helper;
+	private $output;
+
+	const ACCESS_1 = 'triage';
+	const ACCESS_2 = 'deploy';
+	const ACCESS_3 = 'admin';
+
+
+	protected function configure() {
+		$this
+		->setDescription( 'Adds collaborator to Github Team and Pressable sites. Collaborator can be either a11n or contractor' )
+		->setHelp( 'This command allows you to bulk add a collaborator to all Pressable sites and a Github team.' )
+		->addOption( 'username', null, InputOption::VALUE_REQUIRED, "Collaborator's Github username." )
+		->addOption( 'team', null, InputOption::VALUE_REQUIRED, sprintf('Github Team can be: %s, %s, or %s.', self::ACCESS_1, self::ACCESS_2, self::ACCESS_3) );
+	}
+
+	protected function execute( InputInterface $input, OutputInterface $output ) {
+		$this->api_helper = new API_Helper();
+		$this->output     = $output;
+
+		$github_user = $input->getOption( 'github_username' );
+		if ( empty( $github_user ) ) {
+			$github_user = trim( readline( "Please provide the collaborator's Github username: " ) );
+			if ( empty( $github_user ) ) {
+				$github_user->writeln( "<error>Missing collaborator's Github username (eg: --username=their_username).</error>" );
+				exit;
+			}
+		}
+
+		$github_team = $input->getOption( 'github_team' );
+		if ( empty( $github_team ) || ! in_array($github_team, [self::ACCESS_1, self::ACCESS_2, self::ACCESS_3]) ) {
+			$github_team = trim( readline( sprintf("Please provide the collaborator's Github team. Values can be: %s, %s, or %s: ", self::ACCESS_1, self::ACCESS_2, self::ACCESS_3) ) );
+			if ( empty( $github_team ) || ! in_array($github_team, [self::ACCESS_1, self::ACCESS_2, self::ACCESS_3]) ) {
+				$output->writeln( '<error>Missing collaborator github_team (eg: --team='.self::ACCESS_1.').</error>' );
+				exit;
+			}
+		}
+
+		// Start process
+		$this->onboard_github( $github_user, $github_team );
+
+		$output->writeln( '<info>All done!<info>' );
+	}
+
+
+	private function onboard_github( $gh_username, $gh_team ) {
+		$this->output->writeln( "<comment>Granting access to our a8cteam51 organization...</comment>" );
+
+		// Associate Github username with Github Team
+		$team_put = $this->api_helper->call_github_api(
+			sprintf( 'orgs/%s/teams/%s/memberships/%s', GITHUB_API_OWNER, $gh_team, $gh_username ),
+			array(
+				'role' => 'member'
+			),
+			'PUT'
+		);
+
+		if ( ! empty( $team_put->message ) ) {
+			$this->output->writeln( "<error>Something went wrong. Github says: {$team_put->message}</error>" );
+		} else {
+			$this->output->writeln( "<info>The user '{$gh_username}' has been added to Team '{$gh_team}'!</info>" );
+		}
+	}
+}
diff --git a/src/helpers/dry-helper.php b/src/helpers/dry-helper.php
new file mode 100644
index 00000000..299c8a59
--- /dev/null
+++ b/src/helpers/dry-helper.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace Team51\Helper;
+
+class DRY_Helper {
+	private $api_helper;
+
+	// Github Access Levels
+	public $GH_ACCESS_1 = array(
+		'team_slug' => 'triage',
+		'team_permission' => 'triage',
+	);
+	public $GH_ACCESS_2 = array(
+		'team_slug' => 'deploy',
+		'team_permission' => 'push',
+	);
+	public $GH_ACCESS_3 = array(
+		'team_slug' => 'admin',
+		'team_permission' => 'admin',
+	);
+
+	function __construct() {
+		$this->api_helper = new API_Helper();
+	}
+
+	public function populate_team_with_repos( $repo_names, $team_slug, $team_permission ) {
+		echo "Adding repos to team '{$team_slug}'. This might take a while...\n";
+		foreach( $repo_names as $repo_name ) {
+			$github_response = $this->api_helper->call_github_api(
+				sprintf( 'orgs/%s/teams/%s/repos/%s/%s', GITHUB_API_OWNER, $team_slug, GITHUB_API_OWNER, $repo_name ),
+				array(
+					'permission' => $team_permission
+				),
+				'PUT'
+			);
+			if ( ! empty($github_response->message) ) {
+				echo "Something went wrong when adding the repo '{$repo_name}' to the team '{$team_slug}'. Message: {$github_response->message}\n";
+			}
+		}
+	}
+
+}