Steven has a significant practice in Asia Pacific, where he handles a range of arbitration cases which are mostly linked to energy and resources or infrastructure issues and frequently run according to ICC, SIAC, UNCITRAL rules. Chambers & Partners Asia Pacific Guide 2017 testify to his "amazingly wide experience of the subject area in which he operates, spanning every energy dispute imaginable," from his dedication to "making clients feel at their ease" to his "excellent advocacy, not just in terms of the legal issues, but in terms of making the best case for the client."  

Emma Potter, practice manage of Terra Firma Chambers, commenting on Steven’s Band 1 ranking said “This is an outstanding ranking for a new Scottish Silk, Steven Walker QC, in one of the world’s leading and most competitive international arbitration centres. It demonstrates Terra Firma’s commitment to arbitration, both international and domestic.”