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  • Engineering Concepts, Inc
    Engineering Concepts, Inc
    808.591.8820
    1150 S King St Ste 700, 96814-1952  Honolulu

    ENGINEERING CONCEPTS, INC. (ECI) is a Hawaii-based engineering consulting firm that provides comprehensive civil and environmental / sanitary engineering services, established in 1986 on Oahu, Hawaii. Our firm consists of twelve engineers, five CAD Operators/Designers and two administrative staff. …

  • R. M. Towill Corporation
    R. M. Towill Corporation
    808.842.1133
    420 Waiakamilo Rd, 96817  Honolulu

    Hawaii-based consulting engineering, planning, survey business. Services include environmental site assessments and investigations in the hazardous materials and waste management fields.