With decades of experience as a partner in several of the world’s most prestigious law firms negotiating a wide range of highly sophisticated, ground breaking and strategic commercial transactions on behalf of clients worldwide, Allen now provides high quality, efficient and cost-effective counsel from his own firm, Allen J. Klein PLLC. Allen assists clients with a wide variety of commercial transactions including joint ventures, systems integration transactions, telecommunications transactions, business process outsourcing transactions and information technology outsourcing transactions. Allen also assists clients with purchases and sales of privately-held businesses. A more complete description of the services Allen provides is on the Services Page, and a sampling of the transactions Allen has handled is on the Experience Page.


’Thought leader’ Allen Klein is singled out for his breadth of expertise across a range of complex transactions.

- Chambers USA 2013

Allen Klein has a strong reputation .... He is singled out for his skills as a negotiator .... He is described as an 'extremely talented businessman.'

- Chambers USA 2014