PT. Petra Grha Sukma Chaya Company (PT. PGSC) was established in 2012 as a holding company which manage PT. Wina Super Consulting (PT. WSC, established in 2010), PT. Lotus Grha Sukma (PT. LGS, established in 2013, and PT Wira Rana Sukma (PT. WRS, established in 2011). PGSC business focuses in providing consultancy services in the petroleum geosciences under PT. PGSC and PT WSC, hospitality services (hotel and restaurant) under PT. LGS, and continuing education/training under PT. WRS. PT. PGSC and its subsidiaries were established in Indonesia. In the period 2009 to 2025, PT. PGSC and its subsidiaries has been providing 40 GGRE (Geology, Geophysics, Reservoir, Engineering, and their integration) studies and more than 50 related training to various oil companies around the world.