Shah, though, is yet to be given the clearance by the England and Wales Cricket Board to play in the Twenty20 competition.
Middlesex's other national team player Andrew Strauss has not been named been named for the championship. Shaun Udal will lead the English T20 champions, which also boasts of Indian left-arm spinner Murali Kartik.
Pakistan's domestic Twenty20 champions Sialkot Stallions too announced their squad to be led by national team skipper Shoaib Malik.
Middlesex Crusaders: Shaun Udal (captain), Alan Richardson, Benjamin Scott, Billy Godleman, David Nash, Dawid Malan, Edmund Joyce, Eoin Morgan, Gareth Berg, Murali Kartik, Nick Compton, Owais Shah, Steven Finn, Timothy Murtagh, Tyron Henderson
Sialkot Stallions: Shoaib Malik (captain), Abdul Rehman, Adeel Malik, Ali Khan, Bilal Hussain, Faisal Naveed, Kashif Raza, Kamran Younas, Mansoor Amjad, Muhammad Ayub Muhammad Ali, N Qazi, Qaisar Abbas, Sarfraz Ahmad, Shakeel Ansar.