List an account's sponsored members on the Membership Account page.

pmpro-customizations.php

<?php

/**
 * This recipe lists an account's sponsored members on the Membership Account page.
 * 
 * It is intended for use with the Sponsord Members Add On:
 * https://www.paidmembershipspro.com/add-ons/pmpro-sponsored-members/
 * 
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */

function mypmpro_member_action_links_after() {
	global $current_user;

	$user_ids = pmprosm_getChildren( $current_user->ID );

	if ( ! empty( $user_ids ) ) {
		?>
		<br/><br/>
		<h3>Sponsored Members</h3>
		<table class="pmpro_table" width="100%" cellpadding="0" cellspacing="0" border="0">
				<thead>
					<tr>
						<th>Name</th>
						<th>Email</th>
					</tr>
				</thead>
				<tbody>
				<?php

				$user_list = new WP_User_Query( array(
					'include' => $user_ids,
					'orderby' => 'name',
					'order'   => 'ASC'
				) );
				$sponsored_members = $user_list->get_results();
				if ( ! empty( $sponsored_members ) ) {
					foreach( $sponsored_members as $sponsored_member ) {
						echo 	'<tr><td>' . esc_html($sponsored_member->data->display_name ) .
								 	'</td><td> ' . esc_html( $sponsored_member->data->user_email ) .
									' </td></tr>';
					}
				}
				?>
				</tbody>
			</table>
		<?php		
	}
}
add_action( 'pmpro_member_action_links_after', 'mypmpro_member_action_links_after' );