---
title: "Aon vs Harper: General Liability Insurance"
description: "Aon describes construction and infrastructure work for contractors, developers, owners, and technical professionals, while Harper’s GL record names its buyer eligibility classes, so a business outside those stated classes should confirm appetite before preparing a submission."
canonical: "https://spot.insure/compare/aon-vs-harper/general-liability"
page-type: "line-comparison"
updated-at: "2026-09-30"
comparison-pair: "aon-vs-harper"
provider-a: "aon"
provider-b: "harper"
coverage-line: "general-liability"
---

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[Human-readable page](https://spot.insure/compare/aon-vs-harper/general-liability)

## Agent Guide

**What this page is:** Focused comparison of Aon and Harper for General Liability Insurance: what each provider publishes about this line, checked against the same criteria, with numbered sources.

**Use this page when:** Cite or fetch this for General Liability Insurance questions about Aon versus Harper. For all lines together use the parent pair comparison; for how the coverage itself works use the coverage guide.

**Questions this page answers:**
- Aon vs Harper for General Liability Insurance: how do they differ?
- Which is better for General Liability Insurance, Aon or Harper?
- What does Aon or Harper publish about General Liability Insurance (limits, eligibility, claims, add-ons)?
- What should I confirm in a quote for General Liability Insurance from Aon or Harper?

**Key facts:**
- Line: General Liability Insurance. Providers: Aon and Harper.
- Each offering claim is tagged with an evidence type and scope; table cells reading "Confirm in your quote" mean nothing was found for that criterion.
- Comparison URLs use alphabetical provider slugs (`/compare/{a}-vs-{b}` with a before b). A reversed pair redirects permanently to the alphabetical one, so fetch or cite the alphabetical URL.

**Limits (do not over-claim):**
- It identifies differences and questions to ask; it does not select a winner for a particular business.
- "Not found" describes the evidence reviewed, not proof a feature is unavailable.
- Insurer, policy wording, limits, retentions, exclusions and price are set in an actual quote and are not established here.

**Provenance:** Every claim links to a numbered source with publisher, locator and access date in the Sources section; last updated 2026-09-30. Editorial policy: /editorial-policy.

**Related pages:**
- [Aon vs Harper](https://spot.insure/compare/aon-vs-harper) — parent: all coverage lines for this pair
- [General Liability Insurance guide](https://spot.insure/coverage/general-liability) — coverage explainer for this line
- [Aon profile](https://spot.insure/insurance-providers/aon) — provider profile (evidence)
- [Harper profile](https://spot.insure/insurance-providers/harper) — provider profile (evidence)
- [Aon vs Harper Commercial Property Insurance](https://spot.insure/compare/aon-vs-harper/commercial-property) — sibling comparison (other line, or other pair for this line)
- [Aon vs Harper Cyber Insurance](https://spot.insure/compare/aon-vs-harper/cyber) — sibling comparison (other line, or other pair for this line)
- [Aon vs Harper Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-harper/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [Aon vs Harper Workers’ Compensation Insurance](https://spot.insure/compare/aon-vs-harper/workers-compensation) — sibling comparison (other line, or other pair for this line)
- [AIG vs Aon General Liability Insurance](https://spot.insure/compare/aig-vs-aon/general-liability) — sibling comparison (other line, or other pair for this line)
- [AIG vs Harper General Liability Insurance](https://spot.insure/compare/aig-vs-harper/general-liability) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Aon General Liability Insurance](https://spot.insure/compare/alliance-risk-vs-aon/general-liability) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Harper General Liability Insurance](https://spot.insure/compare/alliance-risk-vs-harper/general-liability) — sibling comparison (other line, or other pair for this line)
- [Amelia Risk vs Aon General Liability Insurance](https://spot.insure/compare/amelia-risk-vs-aon/general-liability) — sibling comparison (other line, or other pair for this line)
- [Amelia Risk vs Harper General Liability Insurance](https://spot.insure/compare/amelia-risk-vs-harper/general-liability) — sibling comparison (other line, or other pair for this line)

# Aon vs Harper: How Do They Compare for General Liability Insurance?

Aon describes construction and infrastructure work for contractors, developers, owners, and technical professionals, while Harper’s GL record names its buyer eligibility classes, so a business outside those stated classes should confirm appetite before preparing a submission.

## Research Scope and Use

Use this comparison to evaluate Aon and Harper for General Liability Insurance against the same documented criteria. It identifies differences and questions to confirm; it does not select a winner for a particular business. Offering claims are what each provider publishes about this line unless marked otherwise. “Not found” describes the evidence reviewed, not proof that a feature is unavailable. Confirm the insurer, policy wording, limits, retentions, exclusions and cost in an actual quote.

## Summary

Aon describes construction and infrastructure work for contractors, developers, owners, and technical professionals, while Harper’s GL record names its buyer eligibility classes, so a business outside those stated classes should confirm appetite before preparing a submission. [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") [6](https://www.harperinsure.com/coverages/general-liability "General Liability Insurance")

## What Is Aon?

Aon’s U.S. Commercial Risk terms describe brokerage for certain insurance programs, while its Middle Market page describes a dedicated practice for mid-sized organizations across North America. The public materials reviewed do not identify the licensed producer or insurer for a particular placement. Ask which entity will produce each line and which insurer will issue the policy; request jurisdiction details for the proposed placement and ask how compensation and claim notice work for your account. [1](https://www.aon.com/en/about/leadership-and-governance/brokerage-terms-of-service-for-commercial-risk-solutions-us "Commercial Risk Solutions U.S. Brokerage Terms of Service") [2](https://www.aon.com/en/capabilities/middle-market-clients "Middle Market Clients")

[Aon profile](https://spot.insure/insurance-providers/aon)

## What Is Harper Insurance?

Harper suits hard-to-place businesses such as contractors, care providers, manufacturers and transportation firms; standard small businesses seeking direct quotes should compare online carriers. Its workers’ compensation service helps classify payroll for audits. [4](https://www.harperinsure.com/sms-terms "Text Messaging Terms and Conditions") [5](https://www.harperinsure.com/insurance-insights/harper-45m-funding-announcement "We're Announcing $47M to Build the Insurance Company Every Business Deserves")

[Harper profile](https://spot.insure/insurance-providers/harper)

## What Is General Liability Insurance?

General liability can protect your business when a customer or visitor claims you caused injury or damaged their property. It suits businesses serving customers or working on their premises; your own building, tools and stock need property coverage. [7](https://www.iii.org/article/commercial-general-liability-insurance "Commercial general liability insurance") [8](https://www.insurance.ca.gov/01-consumers/105-type/95-guides/09-comm/commercialguide.cfm "Commercial Insurance Guide") [9](https://www.hiscox.com/documents/partner-agent/specimen_forms/GL_Form.pdf "Commercial General Liability Coverage Form")

## Key Differences in General Liability Insurance

### A construction practice against Harper’s stated business appetite

Aon describes construction and infrastructure work for contractors, developers, owners, and technical professionals. Harper’s GL record names its buyer eligibility classes, so a business outside those stated classes should confirm appetite before preparing a submission. The two records frame access differently: Aon describes a sector practice, while Harper identifies whom its GL product targets. [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") [6](https://www.harperinsure.com/coverages/general-liability "General Liability Insurance")

### Advisory resources and line services

Aon says its project advisers develop risk-transfer and mitigation strategies. Harper lists line services for GL buyers, giving a more product-specific service description. Buyers should ask Harper what assistance is included with the policy and Aon what project-specific work is included in placement; neither general statement should be assumed to be an insured policy benefit. [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") [6](https://www.harperinsure.com/coverages/general-liability "General Liability Insurance")

## What to Confirm in General Liability Insurance Quotes

- Ask Aon which construction classes and project sizes its practice will submit. [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") [6](https://www.harperinsure.com/coverages/general-liability "General Liability Insurance")
- Ask Harper to confirm your class and describe the GL service included after binding. [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") [6](https://www.harperinsure.com/coverages/general-liability "General Liability Insurance")

## Offering Details

| Criteria | Aon General Liability brokerage and risk-advisory offering | Harper General Liability Insurance |
| --- | --- | --- |
| Role in This Line | Aon says its global construction practice designs and places risk solutions and uses broking experience and a global network across construction insurance lines. For general liability, this is evidence of Aon’s brokered market offering; the page does not identify the insurer for a buyer’s placement. [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") (Evidence: Company-reported; scope: Aon’s global construction and infrastructure practice page. This establishes a marketed brokerage/advisory offering, not policy issuance or account-specific placement..) | Harper places general liability coverage by taking one application to multiple insurers rather than underwriting the policy itself, and a specialist reviews the business before it is quoted. [6](https://www.harperinsure.com/coverages/general-liability "General Liability Insurance") (Evidence: Company-reported; scope: Harper's own general liability product page. Describes the brokerage process, not an insurer or underwriting decision..) |
| Issuing Insurer | The reviewed practice page does not name the insurer or producing legal entity for a specific placement. Ask for both on the quote and binder. [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") (Evidence: Not found in reviewed sources; scope: Aon’s global practice page as reviewed 2026-09-30; no state-specific placement schedule or buyer quote was reviewed. This does not establish that Aon cannot arrange a placement..) | Confirm in your quote. |
| Who It’s For | Aon describes its global construction and infrastructure practice as serving contractors, owners, developers, engineers, architects, designers, financiers and investors, and says it works with organizations of varied sizes and complexity. [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") (Evidence: Company-reported; scope: Audience described for Aon’s global construction and infrastructure practice. It does not establish U.S. state availability or underwriting eligibility for a placement..) | Harper markets general liability to businesses that need a certificate for a lease, client contract or license, and specifically says hard-to-place or previously declined businesses are the operations it targets. [6](https://www.harperinsure.com/coverages/general-liability "General Liability Insurance") (Evidence: Company-reported; scope: Product-page marketing copy; not an eligibility guarantee for a particular applicant..) |
| Coverage Features | Aon lists General Liability within construction liability and describes casualty protection for third-party bodily injury or property damage associated with negligent acts during construction or operations. A policy’s actual insureds, triggers, exclusions and conditions are not stated on this practice page. [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") (Evidence: Company-reported; scope: Aon’s marketing description of the brokerage/coverage area. The page is not the insurer’s policy form and does not establish an insured's entitlement to coverage..) | Harper describes the general liability policies it places as covering bodily injury to third parties, property damage the business causes to others' property, and legal defense costs, including when a claim turns out to be groundless. [6](https://www.harperinsure.com/coverages/general-liability "General Liability Insurance") (Evidence: Company-reported; scope: Product-page coverage summary; the issued policy and its exclusions control the actual terms..) |
| Limits and Retentions | The reviewed page does not state a buyer-specific limit, retention, deductible or other placement terms. Confirm these in the quote, bond or issued policy. [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") (Evidence: Not publicly disclosed; scope: Aon’s global practice page as reviewed 2026-09-30; no quote, bond form or issued policy was reviewed..) | Harper says most leases and contracts ask for $1 million per claim as a starting limit, and it will recommend higher limits when a business's situation calls for it. The page does not publish a maximum available limit. [6](https://www.harperinsure.com/coverages/general-liability "General Liability Insurance") (Evidence: Company-reported; scope: FAQ answer on the general liability page; actual limit options depend on the insurer and underwriting..) |
| Risk Services | Aon describes project risk-advisory services to understand project-specific risks and develop risk-transfer, management or mitigation strategies. It also describes a global construction team and market access. These are company-reported brokerage and advisory services, not coverage benefits. [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management") (Evidence: Company-reported; scope: Company-reported advisory services on Aon’s global practice page; account-specific service scope is not stated..) | Harper says it issues certificates of insurance the same day a landlord, client or venue requests one, once a policy is in force. [6](https://www.harperinsure.com/coverages/general-liability "General Liability Insurance") (Evidence: Company-reported; scope: Product-page service claim; not independently timed or confirmed for a particular request..) |
| How to Apply | Confirm in your quote. | You apply for Harper general liability through an online quote form (business details, state, revenue and coverage needs) that a specialist follows up on, rather than an instant-bind online purchase. [6](https://www.harperinsure.com/coverages/general-liability "General Liability Insurance") (Evidence: Company-reported; scope: Quote form and FAQ observed on the product page..) |
| Claims Support | Confirm in your quote. | The reviewed general liability page does not describe a claims-reporting process or claims-advocacy service specific to this line. [6](https://www.harperinsure.com/coverages/general-liability "General Liability Insurance") (Evidence: Not found in reviewed sources; scope: Scoped to the general liability product page as read on 2026-09-23; the provider record separately describes general claims assistance across lines, not checked here for this line specifically..) |

## Full Comparison

- [Aon vs Harper](https://spot.insure/compare/aon-vs-harper): all coverage lines, business roles, service and claims.
- [What Is General Liability Insurance?](https://spot.insure/coverage/general-liability): General liability can protect your business from covered injury and property-damage claims; your building, tools and stock need separate property coverage.
- [Aon vs Harper Commercial Property Insurance](https://spot.insure/compare/aon-vs-harper/commercial-property)
- [Aon vs Harper Cyber Insurance](https://spot.insure/compare/aon-vs-harper/cyber)
- [Aon vs Harper Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-harper/professional-errors-omissions)
- [Aon vs Harper Workers’ Compensation Insurance](https://spot.insure/compare/aon-vs-harper/workers-compensation)
- [AIG vs Aon General Liability Insurance](https://spot.insure/compare/aig-vs-aon/general-liability)
- [AIG vs Harper General Liability Insurance](https://spot.insure/compare/aig-vs-harper/general-liability)
- [Alliance Risk vs Aon General Liability Insurance](https://spot.insure/compare/alliance-risk-vs-aon/general-liability)
- [Alliance Risk vs Harper General Liability Insurance](https://spot.insure/compare/alliance-risk-vs-harper/general-liability)
- [Amelia Risk vs Aon General Liability Insurance](https://spot.insure/compare/amelia-risk-vs-aon/general-liability)
- [Amelia Risk vs Harper General Liability Insurance](https://spot.insure/compare/amelia-risk-vs-harper/general-liability)

## Sources

### Aon

1. [Commercial Risk Solutions U.S. Brokerage Terms of Service](https://www.aon.com/en/about/leadership-and-governance/brokerage-terms-of-service-for-commercial-risk-solutions-us). Aon; Lines 120–127: certain-program broker-of-record scope, consultation, application assistance, client signature and bind instruction, and account administration; lines 140–147: variable and contingent compensation, potential placement incentive, and client request route; lines 206–213: no price guarantee and surplus-lines limitations; lines 229–231: client insurer-notice duty unless separately agreed.. Accessed 2026-09-29.
2. [Middle Market Clients](https://www.aon.com/en/capabilities/middle-market-clients). Aon; Lines 125–132: mid-sized organizations and middle-market framing; lines 165–173: dedicated practice and North America statement; lines 188–224: Commercial Risk capabilities. No numeric company-size cutoff or U.S.-only eligibility rule is stated on the reviewed page.. Accessed 2026-09-29.
3. [Construction and Infrastructure Insurance and Risk Management](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management). Aon; Construction client audience and global placement role, lines 123–126; offering descriptions lines 135–156; coverage-area taxonomy lines 167–195; contact link lines 120–122. Global practice page; no U.S. state or account-specific placement schedule.. Accessed 2026-09-30.

### Harper

4. [Text Messaging Terms and Conditions](https://www.harperinsure.com/sms-terms). Harper Global Enterprises Inc.; Effective August 24, 2026; sections 1–3 (entity, consent and service messages), 5 (message costs), 9 (delivery) and 11 (coverage confirmation). Accessed 2026-09-15.
5. [We're Announcing $47M to Build the Insurance Company Every Business Deserves](https://www.harperinsure.com/insurance-insights/harper-45m-funding-announcement). Harper / Dakotah Rice; February 26, 2026 article: brokerage identity; AI-assisted submissions and follow-ups; 24–48-hour coverage statement; more than 165 underwriters; plans for additional direct appointments. Accessed 2026-09-15.
6. [General Liability Insurance](https://www.harperinsure.com/coverages/general-liability). Harper; Product hero; Know your coverage: What is General Liability insurance?; Bodily injury, Property damage, Legal defense, Certificates on demand; Why Harper (specialist review, multiple insurers, same-day certificates); FAQ: Is general liability required by law?, What limits do I need?, What does it cost?. Accessed 2026-09-23.

### General Liability Insurance Guide

7. [Commercial general liability insurance](https://www.iii.org/article/commercial-general-liability-insurance). Insurance Information Institute; Coverage A; Coverage B; Coverage C; Purchasing commercial general liability insurance. Accessed 2026-09-16.
8. [Commercial Insurance Guide](https://www.insurance.ca.gov/01-consumers/105-type/95-guides/09-comm/commercialguide.cfm). California Department of Insurance; Commercial General Liability; Commercial Automobile; What Should I Expect from a Broker-Agent?; How Are Commercial Policies Rated?. Accessed 2026-09-16.
9. [Commercial General Liability Coverage Form](https://www.hiscox.com/documents/partner-agent/specimen_forms/GL_Form.pdf). ISO; specimen hosted by Hiscox; I.A pp.1–5; I.B pp.6–7; I.C pp.7–8; Supplementary Payments p.8; II pp.9–10; III p.10; IV pp.10–12. Accessed 2026-09-16.

Updated 2026-09-30. Spot, a product of Tools for Enlightenment, publishes this research and works in the commercial insurance market. The comparison applies the same criteria to both providers. [Editorial policy](https://spot.insure/editorial-policy). To suggest a correction, [contact Spot](https://spot.insure/contact) with the page URL and supporting source.

## Aon Reviews

Review Score: 6.1 / 10 from 3 rated sources, equally weighted.

Public ratings for Aon are low: Trustpilot shows 1.2 out of 5 from 782 reviews, and BBB shows 1.6 from five. Aon is a global firm, so those pages mostly reflect other parts of the business, not large U.S. commercial accounts.

- J.D. Power: Aon study score 822 (out of 1000). Historical 2017 large-commercial-broker study; U.S. and Canada commercial insurance decision-makers at large organizations. J.D. Power reports 2,506 evaluations across the study, not Aon-specific responses; the Aon respondent count is not stated. Period: 2017 study; ranked 3rd among large commercial brokers; study-wide population 2,506, not Aon review count. Checked 2026-09-29. [Diversity of Offerings Becomes Key Differentiator for Large Commercial Insurers, JD Power Finds](https://www.jdpower.com/business/press-releases/jd-power-2017-large-commercial-insurance-study)
- Trustpilot: TrustScore 1.2 (out of 5); 782 reviews. Global www.aon.com profile merged with other Aon profiles; mixed experiences include pensions, travel, professional indemnity and Australian business quotation service. The two latter complaints are individual unverified allegations, not evidence of U.S. commercial-placement outcomes or insurer fault. Trustpilot says reviews may not be representative because the company has not recently invited reviews. Period: Displayed 2026-09-29; page separately showed 198 reviews in the last 12 months. Checked 2026-09-29. [Aon Reviews](https://www.trustpilot.com/review/www.aon.com)
- BBB: BBB business grade B− (BBB letter grade; stated reason: failure to respond to two filed complaints). BBB of Chicago & Northern Illinois profile for Aon plc; the business grade is BBB’s own measure, not customer stars. Checked 2026-09-29. [Aon plc | BBB Business Profile](https://www.bbb.org/us/il/chicago/profile/insurance-companies/aon-plc-0654-5291)
- BBB: BBB customer review average 1.6 (out of 5); 5 reviews. BBB of Chicago & Northern Illinois customer reviews for Aon plc; some reviews are about employee-benefit and medical-expense issues. Period: checked 2026-09-29. Checked 2026-09-29. [Aon plc | BBB Reviews](https://www.bbb.org/us/il/chicago/profile/insurance-companies/aon-plc-0654-5291/customer-reviews)

Reviewed 2026-09-29. [Read the sourced review](https://spot.insure/insurance-providers/aon/reviews).

## Harper Reviews

Review Score: not enough ratings.

We found no customer star rating for Harper. Its Trustpilot page has 0 reviews, and BBB shows 0 customer reviews and 2 complaints.



Reviewed 2026-09-29. [Read the sourced review](https://spot.insure/insurance-providers/harper/reviews).

## Agent and Developer Resources

- [Markdown page](https://spot.insure/compare/aon-vs-harper/general-liability.md)
- [Developer resources](https://spot.insure/developers)
- [Public MCP server](https://spot.insure/mcp)
- [MCP server manifest](https://spot.insure/server.json)
- [OpenAPI description](https://spot.insure/openapi.json)
- [Public page index](https://spot.insure/llms.txt)