I'm not sure how this type of guild will fare in Crowfall, but I believe it to be a very good idea. I was apart of the greymoon trading company in archeage and know it is possible, it just requires a little more initiative I believe to get your name out there. If you are looking for trading company guild ideas or such definitely look at archeage guilds as a template, because their was alot of trading company guilds in that game.
The two things I will stress is
1. what panda stated about a pvp group. Since you are apart of a trading company your value for being PK'D is alot higher then others, because they want a little of your "booty." So having a group that will either avenge or protect you would be a good idea especially when heading into dangerous areas for materials.
2. and my second point would be too make sure you stay on top of the economy maybe even a little bit ahead of it, because not paying attention could mean alot of missed out cash.