Business Moves Arch, Coalition Arch Insurance North America and Coalition have formed a multi-year partnership to provide Coalition with long-term capacity for its U.S. and Canada Cyber and Technology Errors & Omissions insurance programs. The capacity will be available through Arch Insurance North America’s carriers. The partnership with Arch will support Coalition, a provider of cyber insurance and security tools to help businesses manage and mitigate cyber risk, as it continues to grow. Over the past year, Coalition has grown to more than $150 million of run-rate gross written premium (GWP) and serves more than 41,000 organizations. Coalition uses an analytics-based approach and in-house cybersecurity services in addressing cyber risk.