leaky-paywall-custom-field-reporting-tool.php

<?php 

add_filter('leaky_paywall_reporting_tool_meta', 'testmag_reporting_tool_company_field_header' );

function testmag_reporting_tool_company_field_header( $meta ) {
    $meta[] = 'company';
    return $meta;
}

add_filter('leaky_paywall_reporting_tool_user_meta', 'testmag_reporting_tool_company_field_value', 20, 2 );

function testmag_reporting_tool_company_field_value( $user_meta, $user_id ) {

    $user_meta[$user_id]['company'] = get_user_meta($user_id, '_company', true);
    return $user_meta;

}