ON a contract for a web developer, is it concerning that they will not state their name in the contract? Only a signature with company name.

If you contract with a corporation, it should sign the contract by a representative (generally an officer).  When you contract with a corporation, it is the only entitly bound by the contract, and not the individual corporate representative who actually signs, or any individual owners or employees of the corporation.  Thus, one often used format for the corporate signature on the contract would be "XYZ Corp.", underneath that a signature line, and underneath the signature line the name and title of the corporate representative who signed on behalf of the corporation (e g. "John Doe, President."