Harper vs The Hartford: How Do They Compare for Professional Liability (E&O) Insurance?

The Hartford publishes average minimum monthly premiums, from $38 for healthcare professionals to $239 for architects and engineers. Harper is a broker that writes the policy around your actual services.

The Hartford publishes average minimum monthly premiums for five named professional liability products, ranging from $38 to $239, while Harper's pages name pricing drivers, services performed, revenue and contract size, without publishing a dollar figure. ^4,¹

What Are the Key Differences Between Harper and The Hartford Professional Liability (E&O) Insurance?

Published Pricing

The Hartford publishes product-level minimum-premium averages; Harper lists only rating inputs:

The Hartford publishes average minimum monthly premiums by product: Misc. Professional Liability Standalone $62, Misc. Professional Liability Endorsement $41, Architects and Engineers Professional Liability $239, Healthcare Professionals Professional Liability $38, and Errors & Omissions Insurance for Technology Companies $146. The page does not publish standard coverage limits or retentions; cost and limits are set at quote. ⁴Company-reported. Company-reported pricing as of 2026-09-23 (page last updated by The Hartford May 4, 2026); premiums are not coverage limits.

Harper's pages do not publish comparable pricing; they instead name pricing drivers, services performed, revenue and contract size, without a stated dollar figure. ¹

Policy Trigger and Reporting Period

The Hartford says many of its professional liability policies are written on a claims-made basis with a retroactive date and an extended reporting period, typically 30 to 60 days and extendable to a year or more, though some are written on an occurrence basis. ⁴ Harper's pages instead say claims often surface a year or more after the work was delivered, without stating whether the policies it places are claims-made or occurrence. ¹

Who Each Page Names as a Fit

The Hartford targets professional liability at businesses that sign contracts requiring coverage, offer professional services directly to customers, or regularly give advice to clients, naming accountants, consultants, interior designers, advertising agencies, graphic designers, technology professionals and healthcare professionals. ⁴ Harper instead targets consultants, agencies, tech firms and licensed professionals whose work product is advice, design or a decision. ¹

What Should You Confirm in Harper and The Hartford Professional Liability (E&O) Insurance Quotes?

Ask The Hartford which of its five named products applies to your profession, and get the specific premium rather than the published average. ⁴
Harper names services performed, revenue and contract size as pricing drivers but no dollar figure; ask for an actual number once it has your details. ¹
Confirm with The Hartford whether your specific product uses a claims-made or occurrence trigger, and get the cost of extending the reporting period. ⁴
The Hartford's page gives premium averages but no limit figures, and Harper's pages give neither; request specific numbers from both. ⁴ ¹

Harper vs The Hartford Professional Liability (E&O) Insurance Compared

Harper vs The Hartford: Professional Liability (E&O) Insurance: documented features by provider

Criteria	Harper Professional Liability Insurance	The Hartford Professional Liability Insurance (Errors & Omissions)
Who It’s For	Harper targets consultants, agencies, tech firms and licensed professionals whose work product is advice, design or a decision, since general liability doesn't cover a client claiming that work caused a financial loss. ¹Company-reported. Professional liability page introduction and FAQ distinguishing it from general liability.	The Hartford targets professional liability at businesses that sign contracts requiring coverage, offer professional services directly to customers, or regularly give advice to clients, and lists industries it covers: accountants, consultants, interior designers, advertising agencies, graphic designers, technology professionals and healthcare professionals. ⁴Company-reported. Professional liability product page as read 2026-09-23.
Coverage Features	Harper describes coverage for errors and omissions in the work itself, negligence allegations about professional judgment, and legal defense costs, with limits it says are matched to the client contracts that require the policy. ^1,²Company-reported. Professional liability page's four coverage tiles; the E&O page adds that claims often surface a year or more after the work was delivered. The issued policy and its exclusions control actual scope.	The Hartford says the policy can cover claims of negligence, misrepresentation, inaccurate advice, personal injury (libel/slander) and copyright infringement, plus defense costs. Many of its professional liability policies are written on a claims-made basis with a retroactive date and an extended reporting period (typically 30-60 days, extendable to a year or more for an added cost), though some are written on an occurrence basis. ⁴Company-reported. Professional liability product page as read 2026-09-23. General coverage and policy-form description; the issued policy controls.
Role in This Line	Harper places professional liability coverage as a broker, writing the policy around the applicant's actual services rather than underwriting it, and describes a specialist handling the placement. ¹Company-reported. Professional liability page introduction and 'Why Harper' section. Harper markets the identical policy under two catalogue entries, "Professional Liability" and "Errors and Omissions"; the E&O page states it is the same policy, just named what a given industry calls it. ^2,³Company-reported. Coverage directory listing plus the E&O page's own description; a naming convention Harper states about itself, not a distinction between two products.	The Hartford's professional liability insurance, also called errors and omissions (E&O) insurance, protects businesses when they make mistakes in the professional services provided to clients, including claims that turn out to be baseless. ⁴Company-reported. Professional liability product page as read 2026-09-23.

Criteria

Harper Professional Liability Insurance

The Hartford Professional Liability Insurance (Errors & Omissions)

Who It’s For

Harper targets consultants, agencies, tech firms and licensed professionals whose work product is advice, design or a decision, since general liability doesn't cover a client claiming that work caused a financial loss. ¹Company-reported. Professional liability page introduction and FAQ distinguishing it from general liability.

The Hartford targets professional liability at businesses that sign contracts requiring coverage, offer professional services directly to customers, or regularly give advice to clients, and lists industries it covers: accountants, consultants, interior designers, advertising agencies, graphic designers, technology professionals and healthcare professionals. ⁴Company-reported. Professional liability product page as read 2026-09-23.

Coverage Features

Harper describes coverage for errors and omissions in the work itself, negligence allegations about professional judgment, and legal defense costs, with limits it says are matched to the client contracts that require the policy. ^1,²Company-reported. Professional liability page's four coverage tiles; the E&O page adds that claims often surface a year or more after the work was delivered. The issued policy and its exclusions control actual scope.

The Hartford says the policy can cover claims of negligence, misrepresentation, inaccurate advice, personal injury (libel/slander) and copyright infringement, plus defense costs. Many of its professional liability policies are written on a claims-made basis with a retroactive date and an extended reporting period (typically 30-60 days, extendable to a year or more for an added cost), though some are written on an occurrence basis. ⁴Company-reported. Professional liability product page as read 2026-09-23. General coverage and policy-form description; the issued policy controls.

Role in This Line

Harper places professional liability coverage as a broker, writing the policy around the applicant's actual services rather than underwriting it, and describes a specialist handling the placement. ¹Company-reported. Professional liability page introduction and 'Why Harper' section.

Harper markets the identical policy under two catalogue entries, "Professional Liability" and "Errors and Omissions"; the E&O page states it is the same policy, just named what a given industry calls it. ^2,³Company-reported. Coverage directory listing plus the E&O page's own description; a naming convention Harper states about itself, not a distinction between two products.

The Hartford's professional liability insurance, also called errors and omissions (E&O) insurance, protects businesses when they make mistakes in the professional services provided to clients, including claims that turn out to be baseless. ⁴Company-reported. Professional liability product page as read 2026-09-23.