ATS Environmental - Underground oil and gas tank inspections, sampling, leak detection, and geoprobe services in the northeastern United States.

DASCEM Holdings - Provides a wide range of services relating to underground storage tanks including compliance with regulations and industry codes of practice, integrity testing, management plans, monitoring and removal. Australia.

Dersch Energies, Inc. - Cathodic protection testing and installation services, especially of underground storage tank systems. Also assist UST owners with regulatory compliance in the area of corrosion protection. Illinois, USA.

Frontier Sales - site for promoting products for petroleum storage and handling, and related products for water and sewer handling.

Veeder-Root Company - World's leading supplier of automatic tank gauging and fuel management systems and related services, including monitoring systems for underground storage tanks.

RDO Environmental Services - Company in Sparks, Nevada, offers waste petroleum recycling, emergency spill response, underground tank removal and abandonment, and cleaning of above- and below-ground tanks.

Caldwell Systems - Offers UST monitoring systems, including in-tank probes, external sensors, and remote monitoring software to ensure rapid leak detection, compliance management, and inventory control. Includes FAQ on leak detection technologies.

Estabrooks EZY CHEK Systems - Describes and offers tank testing and line testing equipment for underground storage tanks.

Granby Tanks - Manufacturer describes cathodic tank technology and offers above-ground and underground oil tanks for residential applications, with dealers located in the US and Canada.