I don’t think I fully understand your question, what exactly do you mean by “related company database” or what are you trying to accomplish?
The meta data is indeed saved as post meta, and thus can be found in the wp_postmeta database table.
To get the post meta for a given company post ID in your theme:
<?php $meta = get_post_meta( [the company post ID ] ); ?>
To get the Orbis post meta for a given company post ID in plain SQL:
SELECT * FROM wp_postmeta WHERE post_id=[the company post ID] AND meta_key LIKE '_orbis_%'
To get the Orbis post meta for a given Orbis ID (as mentioned in the WordPress dashboard) in plain SQL:
SELECT m.* FROM wp_postmeta AS m LEFT JOIN wp_postmeta AS orbis ON m.post_id=orbis.post_id WHERE orbis.meta_key='_orbis_company_id' AND m.meta_key LIKE '_orbis_%' AND orbis.meta_value=[the Orbis ID]