About Us


An Engineering firm since its inception in 1993 providing detailing and design services with over 300 qualified resources across the globe, executing projects on an international level, focusing on quality and commitment to delivery timelines.

Our Team


Ashref Hashim


As founder and president of the Blackstone group, Ashref has been an integral part of continuous growth and transformation of the company. He has developed this organization single-handedly as an international organization, and he has more than two decades of experience in all the areas like custom research, consultation, and strategic decision-making through completely leveraging range of methodologies. He has lectured and presented papers at many universities and spoken at seminars and conferences for leading organizations such as ESOMAR and AMA. He continues to serve in various positions for many not-for-profit professional organizations. He received a Master’s degree from the University of Madras where he also served as a Research Fellow. He also studied at the University of Chicago.

S Egbal


Egbal has over three decades of experience in engineering including R&D, project management, and marketing. He has led projects across diverse industries such as Petroleum, Oil & Gas, Infrastructure, Aero-space, Power and non-conventional energy. He has written quality system manuals for ISO Certification. He has also written manuals and helped to implement them for pressure vessel manufacturing in according to ASME standards. He holds an engineering degree from the University of Madras.