Not exactly the same name. But remember, the South African company is the subsidiary of two American companies, Dodson Aviation and Dodson International. If these aren’t the same company, or closely related companies, I’d figure they often get confused for one another.

In any case, here’s what I found about Dodson Aviation Maintenance and Spare Parts. 

They come up in the December 2000 Report of the Panel of Experts to the United Nations on Sierra Leone, in the section of the report dealing with the arms trade.

Here’s the section that caught my eye (italics added) ...

187. Fred Rindel a retired officer of the South African Defence Force and former Defence Attaché to the United States, has played a key role in the training of a Liberian anti-terrorist unit, consisting of Liberian soldiers and groups of foreigners, including citizens of Sierra Leone, Burkina Faso, Niger and The Gambia. 
188. The panel interviewed Mr Rindel extensively. Rindel was contracted as a security consultant by President Charles Taylor in September 1998, and training started in November 1998. The contract included consultancy services and strategic advice to convert Charles Taylor’s former rebel militia into a professional unit. The Anti-Terrorist Unit is used in Liberia to protect government buildings, the Executive Mansion and the international airport, and to provide VIP Security and the protection of foreign embassies. The numbers trained were approximately 1200. Because of negative media attention, Rindel cancelled his contract in Liberia in August 2000.

189. In 1998, ECOMOG identified a plane, registration number N71RD, owned by a South African company, Dodson Aviation Maintenance and Spare Parts, as having carried weapons to Robertsfield in September of that year. The plane is a Gulfstream 14-seater business jet that cannot be used for arms transport, but there are other relevant connections. Fred Rindel was the owner of Dodson. The company was closed on 31 December 1998, but during the period under investigation, the plane was leased to, and operated by, Greater Holdings (Liberia) Ltd., a company with gold and diamond concessions in Liberia. The plane was used for the transport of the Greater Holdings’ staff to and from Liberia.