The basic advantage of an LLC is that only the money and assets you put into the LLC are at risk if the business goes under.  So if you start a second LLC for the new business, it would be unaffected, for the most part, if the recruiting firm closes down.  It also makes sense to have a separate entity, if you have someone else with an interest in only one of the two businesses.For advice you can act on, based on all of the facts of your situation and the two businesses, please talk to an attorney in your area.  One place to find a lawyer is our website, http://attorneypages.com