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

Marsh brings tech E&O into data center programs combined with property and casualty lines; Alliance Risk suits software and IT services companies, placing Tech E&O with limits it cites from $250K/$500K to $2M/$3M+.

Alliance Risk suits SaaS, AI, IT consulting and managed-service firms, publishing typical limits from $250,000/$500,000 to $2 million/$3 million-plus and a free gap review. Marsh suits large or complex risks such as data centers, combining tech E&O with property and casualty because standard forms leave gaps. ^1,^3,²

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

Specialist for Software and IT Firms vs Programs for Complex Risks

Alliance Risk places tech E&O for SaaS, AI, IT consultants, MSPs, developers, analytics firms, IT staffing and help-desk providers, and publishes typical limits from $250,000/$500,000 to $2 million/$3 million-plus. Marsh treats tech E&O as one of its financial and professional liability specialties and builds it into data-center programs alongside property and casualty. Choose Alliance Risk if you are a software or IT services company buying standalone tech E&O; choose Marsh if you run a data center or need tech E&O coordinated with a large property and casualty program. ¹ ³ ²

Free Gap Review vs Custom Program Design

Alliance Risk describes typical cover for failure to perform, errors in deliverables, unmet specifications, unintentional IP infringement, product failure and data loss from your own mistakes, and offers a free review of gaps and retroactive dates. Marsh says off-the-shelf tech E&O wasn’t built for the scale and concentration of modern data centers and can leave gaps, so it designs combined programs instead. Marsh publishes no tech E&O limits. ¹ ²

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

Ask Marsh whether it is quoting standalone tech E&O or a data-center program with property and casualty. ²
Get Marsh’s proposed limits and check them against Alliance Risk’s published ranges. ¹ ³
Ask both which insurer would issue the policy; neither names one. ¹ ³

Alliance Risk vs Marsh Tech E&O Insurance Compared

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

Criteria	Alliance Risk Tech E&O Insurance	Marsh Technology Errors and Omissions Insurance
Who It’s For	Alliance Risk lists SaaS platforms, AI companies, IT consultants/system integrators/MSPs, software developers, data analytics and business-intelligence firms, IT staffing firms, and IT support/help-desk providers as the businesses that need Tech E&O. ¹Company-reported. Tech E&O page, "Who Needs Tech E&O Insurance?" section.	Marsh names technology among the specialized industries its professional liability (E&O) experts serve, alongside banking, insurance and asset management, media and healthcare. ³Company-reported. Marsh professional liability page, What We Offer section.
Coverage Features	Alliance Risk describes Tech E&O as covering failure to perform or deliver, errors in deliverables (including AI outputs that are factually wrong or biased), unmet specifications, unintentional IP infringement, product failure and data loss caused by the company's own mistakes, while excluding intentional wrongdoing, bodily injury or property damage, and cyberattacks, which it says require separate cyber coverage. ¹Company-reported. Tech E&O page, "What Tech E&O Insurance Covers" and "Does NOT Cover" sections and the E&O-vs-cyber comparison; the issued policy and declarations control actual terms.	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. ²Company-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	Alliance Risk specializes in placing Tech E&O coverage for technology companies that build, deploy or advise using software, describing itself as a specialist placement partner for this line rather than an underwriter. ¹Company-reported. Tech E&O page opening description.	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. ^3,²Company-reported. Marsh professional liability page and data-center insurance page.