Hi @Courtney360
It's amazing how little others know about us so I am not surprised at your response. Kudos for reaching out and looking to position yourself as a professional. The hard part of the underwriters is that GIS is truly an umbrella type of platform - it touches any and everything that has any spatial relevance and therein is the problem. An error in a watershed analysis is of different magnitude than an Indoors project where a wall is placed wrong.
While I cannot offer you the name of an agent, my suggestion would be to reach out to other fields that are close to the field where you intend to work. If you are going to do outdoor work involving contour generation you might try and connect with independent land surveyors. If you are doing indoor work maybe look for a solo architect.
In the end, the insurance coverage is going to come down to their perceived risk for the product(s) you create so you need to help the insurers understand where market similarities are relevant. $200 per month might not be bad at all since you have nothing to compare it to.
Respectfully,
Tom