As a contractor myself, I found that creating a high degree of visibility helps in relation to the Sales & CS teams (apart from the great ideas already shared in this thread, of course). And a way to do that is: create a list of easy changes you can work on, that would help those teams (maybe there is no quote library available, or they don't have examples of great reviews ready to plug into sales conversations or they might need an ROI-focused asset with real results from other customers, etc., these are small things but I found many sellers ask for them as they need to produce quick proof points to support their conversations). As you build them, make sure to share the new resources EVERYWHERE. Slack, internal newsletters, emails, etc. Make noise and show them that there is value in getting customer proof points. While doing this, always attach a CTA to advocate for the importance of getting more of these. And, of course, make it as easy as possible for them to nominate (a small form, simple notes sent directly to you, anything that takes very little time and is user-friendly). In the same idea, check with their leaders if you can get a 5-minute slot in their monthly calls - both to present the new resources and to ask for nominations. Regardless of the medium you choose to send these messages, always highlight what's in it for them, why they should care. It's not as efficient as putting this in their goals, but it can help until there is a more comprehensive strategy in place.