Membership is available to geoscientists, engaged in all sectors of industry, government, education and research. Members of the public interested in Sierra Leonean geoscience especially, may apply for Associate Membership.

The institution shall comprise the following disciplines:

• Mineral Exploration
• Mining
• Petroleum
• Coal
• Hydrogeology
• Industrial Minerals
• Geotechnical and Engineering geology
• Environmental Geoscience
• Regional Geology
• Structural Geology
• Geophysics
• Geochemistry
• Information Geoscience
• Other specialist Geosciences