Chubb - you need to go through a broker and I should note i also have homeowners insurance that has some liability coverage which I suspect also influences the umbrella rate - just find a broker that sells Chubb/aig/natgen/travelers that cater to high net worth individuals (you don’t need to be one! I had a renters insurance policy from Chubb right out of college) But those policies tend to be more customizable - and my experience is that they’re more inclined to pay claims