Outsourcing is a very delicate process certainly for tradesecrets but there are many ways to protect data.
Look at the people behind the company, ask for references and call their references.
Where is the company located? 15 hours flight or just 2-3 hours away? different time zone? Does it operate in the 'grey area' or is the company established and 100% legal?
Many small guys have setup shop and call themself 'outsourcers'. What they mean is they hired 5 workers and make a profit of $2000/mo if that.
http://www.123resourcing.com email info@ and you will receive a reply together with a list of references you can check.