- Tanzania International Minerals Company
- Address:kawawa street, Dar es salaam, Tanzania, Tanzania,+255
- Ikoda Gems & Mining Co.
- Address:Other, Tanzania
- Kibogem
- Address:5 Nkrumah st, Dar es Salaam, Tanazania, Tanzania
- Gems Marketing Service
- Address:Goliondoi Road, Arusha, Tanzania
- Swede Corporate Limited
- Address:Plot 8, Block 47, Shekilango Road, Dar es Salaam, Kijitonyama, Tanzania
- Brahkom Ltd
- Address:UN Road, Dar es salaam, Dar, Tanzania,25522
- Tanzanite Wondering
- Address:Other, Tanzania
- Raki Gem
- Address:Kinondoni, Dar es Salaam, Dar es Salaam, Tanzania
- Isakawa Gemstones Mining Co Ltd
- Address:livingstone/mafia, dar-es-salaam, coast, Tanzania
- Raki Gems
- Address:Kinondoni, Dar es Salaam, Dar es Salaam, Tanzania
- Harnam Holdings Ltd
- Address:Senegal Road, Dar es salaam, Tanzania, Tanzania
- Nambo Investment Ltd
- Address:Mwenge, Dar es salaam, Tanzania
- Chanzgemstones
- Address:konde, DAR ES SLAAM, Tanzania
- ABLO TOURS AND MINING LTD
- Address:upanga, dar esalaam, dar esalaam, Tanzania
- Alto Suwi Co; Limited
- Address:Mazengo, Dar es Salaam, Tanzania
- Mahoma Gems
- Address:UN Road, Dar es salaam, Tanzania
- Crystal Clear Mineral Centre
- Address:taifa road, moshi, kilimanjaro, Tanzania
- Micco Impex Forwarding Limited
- Address:Plot 589 Makubusho, Dar es Salaam, Tanzania, Tanzania
- Ally Africa Mining Co Ltd
- Address:tanga, tanga, Tanzania
- SAFI Diamonds LTD
- Address:Tanzania