Hi Anders - I'm assuming by your name that you might be in Europe? If so, these might not all be available in, or compatible with, your market. If you're shopping models with embedded modems, make sure to double-check compatibility with your broadband provider.
1) Peplink - Pepwave models have embedded modems. If you can get a USB modem and/or multi-WAN is of interest, then also look at the Balance series.
2) CradlePoint - Still relevant, even if they have changed their business model somewhat.
3) Accelerated - Similar to CradlePoint, newer to market, but supposedly excellent as well.
4) Mikrotik - If your skills are up to it and a USB modem is an option. Note: their modem support can be iffy, depending on your market.
3GStore.com has a really nice showcase of Peplink, CradlePoint and Accelerated if you want to get an idea on pricing and features in the space.
Hope that helps!