Don't know what might be going on with G & G, etc., but upon sending an email  to the email address given in you post  asking about doing searches for them, I received a reply from 

Jeff,  under the business name  Gilman & Gilman, P.C.,    which sounds something like it may be a law firm,  (any info Robert ? ).   If they were really operating under  Gilman & Gilman, LLC,

why did this Jeff Gilman  use   Gilman & Gilman, P.C.    in replying about title work?

Where did you find out they were located, if you you did?

Perhaps they are registered in that state's business registration.