Sonangol
- The company is responsible for the management of oil and gas reserves in Angola and a leader in the continuing drive for the development of the country. News, products, and contacts.
- http://www.sonangol.co.ao/

Invest In Angola
- US-based independent representative promoting trade and foreign investment in the country.
- http://fengelke.home.comcast.net/

Barlows Equipment Company
- Supplier of Caterpillar earth moving machines, compaction equipment and Cat Power Systems.
- http://www.bec.co.za/angola.html