I'm guessing that most of the time a recruiter won't tell you the company name the reasoning is less about trying to keep the company's business a secret out o

I'm guessing that most of the time a recruiter won't tell you the company name the reasoning is less about trying to keep the company's business a secret out of fear of some moral objection by a candidate and more about misplaced fear (that you'll go to the company directly instead of through them) or marginal ethics (e.g. the recruiter's company basically lifted the job description from the employer's job ad and re-branded it with the recruiter's info to make it look like they've got a contact--in which case the fear mentioned above isn't misplaced, I suppose).