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Design & Environmental

In addition to traditional open brokerage underwriting, Arch Insurance underwrites specialty environmental and design professional program business through managing general agencies (MGAs) and program administrators (PAs) who specialize in niche markets. Arch Insurance offers a diverse range of environmental and design professional insurance products which can be tailored to meet the needs of these unique classes of risk. Our experienced underwriting personnel are ready to ensure prompt attention to all our programs.

We align ourselves with MGAs and PAs with the following attributes:

  • A strong financial business plan
  • Profitable results backed by quantifiable data
  • Excellent reputation
  • Strong financials
  • Proven underwriting and program management skills
  • Existing market presence
  • Unparalleled expertise and professionalism

The minimum annual written premium for an environmental or design professional liability program is $3 million. We will consider programs with less premium depending on the profitability and ease of implementation. Partners that help support underwriting profitability may be eligible for profit sharing.

We are generally not a market for:

  • Mono-line CGL or workers’ compensation
  • Risks with negligible environmental and/or professional exposure
  • Inland marine
  • Property (with the exception of fixed-site pollution coverage)

Arch Insurance program submission guidelines include a history of the program and principals, underwriting and pricing guidelines, and quantitative statistical experience. The program submission must meet rigorous underwriting and actuarial benchmarks.

We expect our MGAs to rate, quote, bind and issue policies, and handle premium collection. Our preferred solution is to use our systems; however, we may consider permitting the use of an MGA's system that meets our technical requirements.


Insurance coverage is underwritten by a member company of Arch Insurance Group Inc. This is only a brief description of the insurance coverage(s) available under the policy. The policy contains reductions, limitations, exclusions and termination provisions. Full details of the coverage are contained in the policy. If there are any conflicts between this document and the policy, the policy shall govern. Not all coverages are available in all jurisdictions.