Mr Leen is the Managing Director of JLP Limited and JLP Commercial Limited. The companies are Wellington based contracting businesses concentrating on major commercial projects. 

Mr Leen is a Certifying Plumber and Drainlayer with over 30 years’ experience as a business owner in the industry. 

Mr Leen has undertaken a number of governance roles on commercial and advisory boards including across the plumbing industry including executive member and past President of the Wellington Master Plumbers Association, a director and chair of Master Plumbers Gasfitters & Drainlayers NZ Inc., Masterlink Ltd and NZ Plumbers Journal Ltd. He has also been a member of advisory boards for the Plumbers Gasfitters & Drainlayers Board, the Skills Organisation and local polytechnics. 

Mr Leen is a member of the Institute of Directors in New Zealand (Inc.). 

Mr Leen is Chair of NZPM’s Remuneration Committee and a member of the Compliance and Membership Committees.