In addition to Parallel Computing Toolbox™, MATLAB® Distributed Computing Server™ software allows you to run as many MATLAB workers on a remote cluster of computers as your licensing allows. You can also use MATLAB Distributed Computing Server to run workers on your client machine if you want to run more than twelve local workers.
Most MathWorks products let you code in such a way as to run applications in parallel. For example, Simulink models can run simultaneously in parallel, as described in Run Parallel Simulations. MATLAB Compiler™ software lets you build and deploy parallel applications, as shown in Deploy Applications Created Using Parallel Computing Toolbox.
Several MathWorks products now offer built-in support for the parallel computing products, without requiring extra coding. For the current list of these products and their parallel functionality, see: