Proppant is a treated sand or engineered ceramic material, which is used to keep fractures propped open after the fracturing treatment. Hence, it is called propping agent. Different types of proppants have different mechanical strengths to withstand high closure pressures ranging from 6,000 psi to 20,000 psi. Proppants are injected into the wellbore along with water and additives with high-pressure intensity to make the fractures. They need to be permeable to gas under high pressure. Large mesh proppants have a greater permeability at low closure stresses, whereas small mesh proppants have a greater permeability at high closure stresses. Proppants used in hydraulic fracturing have a direct impact on the cost of the oil & gas production output. Hence, proppant selection depends on the reservoir type, closure stress, depth, and stages of fracturing. The core competencies1. of the companies are covered in terms of their key developments, SWOT analysis, and key strategies adopted by them to sustain their position in the market.