Coalition vs Marsh: How Do They Compare for Tech E&O Insurance?

Coalition markets Tech E&O to organizations that provide technology for a fee, but only paired with its Active Cyber policy. Marsh handles tech E&O as a professional liability specialty and designs data center programs around it.

Coalition sells Tech E&O only together with its Active Cyber policy, with one in-house claims team and its Control platform covering both; Marsh brokers Tech E&O as a professional-liability specialty and builds custom programs for large data centers, which it says off-the-shelf forms leave exposed. ^1,^5,⁴

What Are the Key Differences Between Coalition and Marsh Tech E&O Insurance?

Tech E&O Tied to Cyber vs a Custom-Built Program

Coalition designs Tech E&O that you can only buy together with its Active Cyber Insurance, sold through appointed brokers, for any business that sells a technology product or service for a fee. Marsh treats technology E&O as a financial and professional liability specialty and says off-the-shelf forms were not built for the scale of modern data centers, so it builds programs combining Tech E&O with property, casualty and other lines. Choose Coalition if you are a typical tech firm that also needs cyber; choose Marsh if you run a data center or need a program too large or unusual for a standard form. ¹ ⁵ ⁴

One Claims Team and Monitoring at Coalition

Coalition includes its Control platform, the same one used on its cyber policies, and handles Tech E&O and cyber claims with one in-house team, so a claim touching both lines goes to one place. Marsh's pages describe no monitoring platform attached to Tech E&O placements. ³ ¹ ⁵

What Should You Confirm in Coalition and Marsh Tech E&O Insurance Quotes?

Ask Marsh whether your placement is a standalone professional-liability form or part of a data-center program with property and casualty. ⁴
Budget for Active Cyber if you choose Coalition; it will not sell Tech E&O alone. ¹
Ask both which insurer issues the policy. ² ⁵
If you operate a data center, ask Marsh which standard-form gaps its program closes. ⁴

Coalition vs Marsh Tech E&O Insurance Compared

Coalition vs Marsh: Tech E&O Insurance: documented features by provider

Criteria	Coalition Technology Errors & Omissions Coverage	Marsh Technology Errors and Omissions Insurance
Who It’s For	Coalition markets Tech E&O to any organization that provides a technology product or service in exchange for a fee, citing exposures such as software downtime and failures in technology services or products. ¹Company-reported. Tech E&O product page as read on 2026-09-23.	Marsh names technology among the specialized industries its professional liability (E&O) experts serve, alongside banking, insurance and asset management, media and healthcare. ⁵Company-reported. Marsh professional liability page, What We Offer section.
Coverage Features	Coalition says Tech E&O covers third-party financial losses from errors, omissions, or negligence in technology products or services, listing example causes including software bugs, delivery delays, IP claims over licensed code, IT-service implementation errors, and failure to meet contract requirements. ¹Company-reported. Tech E&O product page as read on 2026-09-23; the issued policy and endorsements control actual coverage.	Marsh says off-the-shelf technology E&O policies were not built for the scale and concentration of modern data centers and can leave gaps. It designs data center programs that combine technology E&O with property, casualty and other lines. ⁴Company-reported. Data center insurance page, Closing the gaps in conventional coverage section; describes a gap in standard tech E&O for one customer segment (data centers), not the general product.
Role in This Line	Coalition designs and distributes Tech E&O as a coverage that combines with its own cyber policy, sold through appointed brokers rather than direct to buyers. ¹Company-reported. Tech E&O product page as read on 2026-09-23.	Marsh treats technology errors and omissions (tech E&O) as one of its financial and professional liability specialties, with dedicated attention to the technology industry, and separately names it as a building block within its data-center insurance programs. ^5,⁴Company-reported. Marsh professional liability page and data-center insurance page.