Seafco Public Co., Ltd. is engaged in the construction of foundation and public works. Its services include bored piling, diaphragm walling, barrette piling, substructure works, civil construction, ground improvement, and ancillary services. The company was founded by Supot Thasnanipan, Narong Thasnanipan, Tachapong Pravesvararat, and Songsak Visuttipitakkol on December 19, 1974 and is headquartered in Bangkok, Thailand.