Mario L. Pangestu is one of the founding partners of Solis Advisors, having his specialization in hospitality and property, technology and telecommunications, restructuration, insolvency and bankruptcy. Pangestu advises his clients and acts as an advocate in most are of commercial law. He also has vast experience in merger and acquisition, maritime, oil, and gas, joint venture and other investment mechanisms in related fields.

In Indonesian Bankruptcy law related matter, he is also registered as a Trustee and Receivers in Ministry of Law and Human Rights in Indonesian from Indonesian Association of Trustees and Receivers (AKPI).