WITCO Construction & Development Corporation is a progeny of WITCO Inspection & Testing Corporation (formerly Welding Inspection & Testing Corporation, which was established in 1991).  While still under the banner of WITCO Inspection & Testing Corporation, the company already undertook construction on such specialized projects as the fabrication and erection of processed piping and pressure vessels for SHELL & CALTEX Refineries, communications towers for SMART, ALCATEL/DIGITEL, ISLACOM & NEXTEL cell sites and the rehabilitation of NPC power plants at MALAYA, SUCAT, CALACA & MANILA.

In time the company gained expertise in the field of Welding and Quality Control in Steel Construction Projects. Soon, because of proper planning and sound project cost management, WITCO began undertaking numerous projects resulting in the Company establishing a name in the field of general construction. Thus WITCO Construction & Development Corporation was organized and registered in November 1994 to provide special services in the field of construction.  The company's main business revolves around the expertise of its Founder & President MARCELO B. VILLANUEVA whose qualifications and experience were obtained through over twenty-five years in the Steel Construction and Testing Industries.