Professional association for geoscientists in Ireland. Includes membership information, position openings, events announcements, and publications.

www.iaeg.org/

Provides a library of spec data and non-exclusive surveys, including land 3D, transition zone, ocean bottom cable, and regional 2D and 3D marine programmes.

www.jebcoseis.com/

Digital seismic data processing, archiving and data management services.

www.kelman.com/

Geophysical services and rental of geophysical equipment. Specializes in passive seismic tomography surveys for the oil industry and in pipeline early warning pollution systems.

www.landtech.org/

The LGA, established 1874, holds monthly lecture and field meetings exploring aspects of the geology and scenery of Leeds, Yorkshire and beyond. Membership is open to all.

www.leedsgeolassoc.freeserve.co.uk/

Data broker offering sales and licensing of spec and proprietary gravity, aeromagnetic, and magnetotelluric surveys throughout the US. Includes an interactive map showing coverage.

www.gravitydata.com/

Remote sensing services using radiometric, geochemical, and Earth resistivity profiling surveys. Includes technical explanations and success stories.

www.mammoth-geo.com/

Provider of airborne geophysical surveys and measurements of gravity, magnetic and electromagnetic forces and gamma radiation on the ground and from fixed-wing aircraft and helicopters.

www.mgssurveys.com/

Gravity and borehole gravimeter surveys, instrument repair and calibration services, training workshops.

www.lacosteromberg.com/

Geophysical contract company. Site includes publications, work sites and a client list.

www.microgeo.com/