Whether you have a Commercial General Liability/Pollution package or a mono-line pollution policy, OneBeacon's Environmental Excess Liability coverage allows us to offer additional capacity over your current environmental placements with other carriers.

Coverage and eligibility information for Environmental Excess Liability:

  • Limits of Liability up to $10,000,000.
  • Minimum premiums start at $5,000 per policy and coverage can be provided directly over the primary policy or included in higher excess layers.
  • Underlying carriers must have an A.M. Best rating of "A VI" or better.
  • Minimum attachment point of $1,000,000.


Our Targeted Industry focus includes the same classes of business as our enviro@vantage and contractors@vantage risk appetite, including environmental contractors and consultants, green energy contractors, and non-environmental contractors. Employers Liability and Auto Liability can be scheduled when coverage is offered in excess of a Commercial General Liability/Pollution policy.