Various Student Loans

What you're looking for is called Private Loan Consolidation. It's becoming more and more popular, so you do have options.

First, it's important to remember that you should only consolidate your private educational loans with other private educational loans. Never combine your federal loans with your private loans in a consolidation. (Technically, only federal loans like Stafford and Perkins can be added to a Federal Consolidation Loan; any company that offers to add your private loans in is scamming you.)

I would encourage you to read up on the various companies that offer private student loan consolidation and pick one that you're comfortable working with long term. Among the reputable companies I've found who offer this service are…

Sallie Mae: http://salliemae.com/after_graduation/manage_your_loans/consolidate_student_loans/private.htm
Key Bank: https://www.key.com/html/H-1.39.b.html
Education Finance Partners: http://www.educationfinancepartners.com/loans_privateconsolidationloan.html
Wells Fargo: https://www.wellsfargo.com/student/repay/private_consolidation/?_requestid=13154
Nelnet: http://www.consolidation.nelnet.net/PvtDescription.asp

Just do a little research into these options and pick whatever lender you're comfortable doing business with in the long term.