I thought with the current shipping containers lacking much in the way of diversity some of these companies could make nice additions. (If you know of any more that could be wide use or that you just like add them in the comments). ACL China Shipping CMA CGM COSCO CRONOS DHL Evergreen Hyundai IRISL Linfox (Australia, Hong Kong, India, Indonesia, Laos, Malaysia, New Zealand, Thailand and Vietnam only) Hanjin HMM Maersk Matson MSC Swire TOLL UASC Wan Hai Yang Ming ZIM
Whilst it would be nice to have more shipping brands represented in the game, this is mainly a licensing issue. The companies would probably charge a fee for the usage of their brand, but new containers would only bring any income for DTG if they were locked behind a paywall, meaning being a DLC. Btw, two of the brands in your list are already in the game: Hamburg Süd and Hapag-Lloyd. But I think we could get a better diverstiy by just adding unbranded coloured containers and also adding tank containers. These would mix up the looks on intermodal trains significantlly, as they are a break in an otherwise endless chain of steel boxes.