S. Mark Group comprises of S. Mark Industries and S. Mark Oil Field Engineering Pvt. Ltd. S. Mark was started in 1987 by Mr. A. C. Saini (Managing Director). Over the span of 20 years, S. Mark has become a leading fabrication and engineering company based near Ahmedabad, Gujarat. We at S. Mark design, fabricate, and commission products for the petrochemical, oil and gas, refinery, and specialty process industries worldwide. Our work conforms to DGMS/OISD stipulations . Our expertise includes, but is not limited to manufacturing pressure vessels, storage tanks, separators and ancillary equipment serving the aforementioned industries. S. Mark is a growing enterprise and our success in the market is attributed to our philosophy of quality, reliability, and customer service. In our continuous quest to enhance engineering and manufacturing quality we have secured approval from ASME. S. Mark has acquired "U" ASME and "R" Stamp by National Board of Boiler and Pressure Vessel Inspectors. We are accepting orders conforming to both "U" Stamp and "R" Stamp certification. Clients: ONGC Limited Oil India Ltd. GSPCL Reliance Industries Ltd L&T JTI Oil Field Projects Essar Oil Ltd. Heramec Ltd. Selan Exploration Technology Interlink Petroleum Ltd. Deep Industries John Energy Ltd. Punj Lloyd Ltd. Bharat Heavy Plate & Vessel Ltd. Niko Resources Ltd. GAIL Canoro Resources Corrtech International Upet (Romania) Oilex HOEC GEECL