no. company blocks using maven.
Once you have imported the GraphHopper projects into Eclipse, it will need to download its library dependencies. They are managed by Maven.
The only way around that would be to download all the JAR dependencies on another machine and transfer them to your company machine. You can search for something like "maven download dependencies" on how to do that.
But then again, you may be better off doing the whole Eclipse import on the other machine, and then copy your workspace. Then you don't need to follow special instructions.