Profile: DonJon Marine Co., Inc. offers marine salvage and related services for the entire marine community. Our dredging division provides dredging, processing and disposal services. Our services include salvage, dredging, transportation, engineering, heavy-lift, demolition and pollution control & hazardous material handling. We provide turnkey services on maintenance and navigation improvement dredging projects. We specialize in both upland and sub-aqueous ocean disposal.