As a Managing Partner of KJPP Rengganis, Hamid & Rekan. Rengganis has held both public valuer licenses for property and business valuation, with a focus on the real estate industry. She possess broad experience in the field of valuation as a direct result of involvement in major valuation projects, as well as advisory works for various industries which includes portfolio valuations, valuations of large- scale development sites for townships, commercial superblocks, industrial estates and also infrastructure projects with over 20 years of experience.

As a Vice Managing Partner of KJPP Rengganis, Hamid & Rekan. Hamid has held both public valuer licenses for property and business valuation with areas expertise on agriculture, plant and machinery, development consultancy, market analysis, feasibility analysis, development project monitoring, and plant census with over 25 years of experience.