---
title: "Aon vs Harper: Builders Risk Insurance"
description: "Harper takes one construction application across markets and describes builders risk from ground break to handover; Aon offers project-specific risk advice and market access."
canonical: "https://spot.insure/compare/aon-vs-harper/builders-risk"
page-type: "line-comparison"
updated-at: "2026-10-01"
comparison-pair: "aon-vs-harper"
provider-a: "aon"
provider-b: "harper"
coverage-line: "builders-risk"
---

Agents: connect to Spot's public MCP server at https://spot.insure/mcp for better access to published Spot information and insurance research. Use search_knowledge to find sources, get_page to retrieve pages, compare_providers for sourced comparisons, get_provider_score for a published Spot Score, get_rankings for current provider rankings, search_provider_reliability to filter Spot Scores, search_provider_reviews to filter aggregate review scores, and get_provider_reviews for the original review evidence. The server is read-only and requires no authentication.

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

## Agent Guide

**What this page is:** Focused comparison of Aon and Harper for Builders Risk 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 Builders Risk 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 Builders Risk Insurance: how do they differ?
- Which is better for Builders Risk Insurance, Aon or Harper?
- What does Aon or Harper publish about Builders Risk Insurance (limits, eligibility, claims, add-ons)?
- What should I confirm in a quote for Builders Risk Insurance from Aon or Harper?

**Key facts:**
- Line: Builders Risk 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 2026-10-01. Editorial policy: /editorial-policy.

**Related pages:**
- [Aon vs Harper](https://spot.insure/compare/aon-vs-harper) — parent: all coverage lines for this pair
- [Builders Risk Insurance guide](https://spot.insure/coverage/builders-risk) — 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 Auto Insurance](https://spot.insure/compare/aon-vs-harper/commercial-auto) — sibling comparison (other line, or other pair for this line)
- [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 General Liability Insurance](https://spot.insure/compare/aon-vs-harper/general-liability) — 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 Surety Bonds](https://spot.insure/compare/aon-vs-harper/surety-bonds) — sibling comparison (other line, or other pair for this line)
- [Aon vs Harper Umbrella and Excess Liability Insurance](https://spot.insure/compare/aon-vs-harper/umbrella-excess) — 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 Builders Risk Insurance](https://spot.insure/compare/aig-vs-aon/builders-risk) — sibling comparison (other line, or other pair for this line)
- [AIG vs Harper Builders Risk Insurance](https://spot.insure/compare/aig-vs-harper/builders-risk) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Aon Builders Risk Insurance](https://spot.insure/compare/alliance-risk-vs-aon/builders-risk) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Harper Builders Risk Insurance](https://spot.insure/compare/alliance-risk-vs-harper/builders-risk) — sibling comparison (other line, or other pair for this line)
- [Aon vs The Baldwin Group Builders Risk Insurance](https://spot.insure/compare/aon-vs-baldwin/builders-risk) — sibling comparison (other line, or other pair for this line)
- [Aon vs Berkshire Hathaway Specialty Insurance Builders Risk Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/builders-risk) — sibling comparison (other line, or other pair for this line)

# Aon vs Harper: How Do They Compare for Builders Risk Insurance?

Harper takes one construction application across markets and describes builders risk from ground break to handover; Aon offers project-specific risk advice and market access.

## How to Use the Aon vs Harper Builders Risk Insurance Comparison

Use this comparison to evaluate Aon and Harper for Builders Risk 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.

## Aon vs Harper Builders Risk Insurance Summary

Harper takes one construction application across the markets it says write builders risk and describes project protection from ground break to handover. Aon describes project-specific risk advice and market access. [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/industries/construction-insurance "Construction & Contractors Insurance") [7](https://www.harperinsure.com/ "Harper Homepage")

## 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 Builders Risk Insurance?

Builders risk protects the project you are building, including materials meant for it, against physical loss until construction ends. The gaps that cost owners money are materials in storage or transit, the existing building in a renovation, and coverage ending when you occupy early. [8](https://content.naic.org/glossary-insurance-terms "Glossary of Insurance Terms") [9](https://www.insurance.ca.gov/01-consumers/105-type/95-guides/09-comm/commercialguide.cfm "Commercial Insurance Guide") [10](https://assets.touchpointmarkets.com/e8/58/dec27c1b462c8227b4693fb8ac81/ih-00-70-05-17-builders-risk-coverage-form.pdf "Builders Risk Coverage Form") [11](https://go.usassure.com/rs/381-ISO-510/images/us-assure-builders-risk-application-tip-sheet.pdf "Builders Risk Application Tip Sheet")

## What Are the Key Differences Between Aon and Harper Builders Risk Insurance?

### Application and Market Placement

Harper says one construction application, including builders risk, is presented across markets that write construction; it describes admitted options where pricing allows and excess-and-surplus markets when needed. Aon also describes broking and a global construction network, but its reviewed builders-risk record does not specify a one-application process or these market categories. Ask both brokers which carriers will receive the submission and what information can be reused across markets. [6](https://www.harperinsure.com/industries/construction-insurance "Construction & Contractors Insurance") [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management")

### Project Scope and Coordination

Harper describes builders risk as protecting the structure, materials, and fixtures from ground break through handover, alongside jobsite liability and required certificates. Aon describes accidental damage to project property or materials during construction and offers project risk advice. For a developer coordinating several contractors, the difference is Harper’s stated handover-and-contract framing versus Aon’s risk-analysis approach. The quote still needs to spell out temporary works, off-site materials, testing, and any transition at occupancy. [6](https://www.harperinsure.com/industries/construction-insurance "Construction & Contractors Insurance") [3](https://www.aon.com/en/capabilities/risk-transfer/construction-and-infrastructure-insurance-and-risk-management "Construction and Infrastructure Insurance and Risk Management")

## What Should You Confirm in Aon and Harper Builders Risk Insurance Quotes?

- Which markets will receive the application, and who is the issuing insurer on each indication? [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/industries/construction-insurance "Construction & Contractors Insurance")
- Does the proposed term end at handover, occupancy, or another milestone, and how are materials and temporary works scheduled? [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/industries/construction-insurance "Construction & Contractors Insurance")

## Aon vs Harper Builders Risk Insurance Compared

| Criteria | Aon Builders Risk brokerage and risk-advisory offering | Harper Builders Risk Coverage |
| --- | --- | --- |
| 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 builders risk, 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 builders risk as one piece of its Construction & Contractors insurance package, describing itself as calling every market that writes construction and presenting the options back, rather than underwriting the coverage itself. [6](https://www.harperinsure.com/industries/construction-insurance "Construction & Contractors Insurance") (Evidence: Company-reported; scope: Construction & Contractors industry page; describes Harper's placement role for the package that includes builders risk, not a standalone builders risk product page..) |
| 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..) | The reviewed pages do not name the insurer or insurers that would issue a builders risk policy Harper places; the industry page refers only to 'every market that writes construction' without listing carriers. [6](https://www.harperinsure.com/industries/construction-insurance "Construction & Contractors Insurance") (Evidence: Not publicly disclosed; scope: Checked the Construction & Contractors industry page and homepage industries carousel on 2026-09-23; a specific insurer would appear on the quote or policy..) |
| 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 says Construction & Contractors coverage, including builders risk, is for general contractors managing subs, specialty trades such as roofing, framing, electrical, plumbing and HVAC, remodelers and handymen, residential and commercial builders, and construction managers. [6](https://www.harperinsure.com/industries/construction-insurance "Construction & Contractors Insurance") (Evidence: Company-reported; scope: Construction & Contractors industry page 'Who this is for' section; not builders-risk-specific eligibility criteria such as project value or completion timeline..) |
| Coverage Features | Aon lists Builders Risk under construction property and says its construction property offering can address accidental damage to project property or materials during construction and operations. That is a broker’s description of the line, not a grant of coverage for a buyer. [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 builders risk as covering the structure, materials and fixtures of a project from ground break to handover, alongside jobsite liability and the certificates a project requires to start. [6](https://www.harperinsure.com/industries/construction-insurance "Construction & Contractors Insurance") [7](https://www.harperinsure.com/ "Harper Homepage") (Evidence: Company-reported; scope: Construction & Contractors industry page coverage callouts and homepage industries carousel; the issued policy and declarations would control 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's reviewed pages do not publish builders risk limits, deductibles or maximum project values; the industry page says cost depends on trade, payroll and revenue and is quoted individually across multiple markets. [6](https://www.harperinsure.com/industries/construction-insurance "Construction & Contractors Insurance") (Evidence: Not publicly disclosed; scope: Construction & Contractors industry page FAQ 'What does it cost?'; no published limit or retention figures found..) |
| 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 writes certificates of insurance with additional-insured, waiver-of-subrogation and primary-and-non-contributory wording the same day a contract calls for it, and checks subcontractors' certificates so their risk does not become the general contractor's. [6](https://www.harperinsure.com/industries/construction-insurance "Construction & Contractors Insurance") (Evidence: Company-reported; scope: Construction & Contractors industry page; describes the certificate and risk-review service Harper says it provides around construction projects, which includes builders risk jobs..) |
| How to Apply | Confirm in your quote. | Harper says it takes one application for construction risk, including builders risk, and quotes it across every market it says writes construction, admitted where pricing allows and excess-and-surplus lines when the work demands it. [6](https://www.harperinsure.com/industries/construction-insurance "Construction & Contractors Insurance") (Evidence: Company-reported; scope: Construction & Contractors industry page 'Why Harper' section; specific markets contacted for a given project are not named..) |

## Related Pages for Aon vs Harper Builders Risk Insurance

- [Aon vs Harper](https://spot.insure/compare/aon-vs-harper): all coverage lines, business roles, service and claims.
- [What Is Builders Risk Insurance?](https://spot.insure/coverage/builders-risk): Builders risk insures a building and its materials against physical loss while it is under construction, but stored or in-transit materials, the existing structure in a renovation, and early occupancy can fall outside it.
- [Aon vs Harper Commercial Auto Insurance](https://spot.insure/compare/aon-vs-harper/commercial-auto)
- [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 General Liability Insurance](https://spot.insure/compare/aon-vs-harper/general-liability)
- [Aon vs Harper Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-harper/professional-errors-omissions)
- [Aon vs Harper Surety Bonds](https://spot.insure/compare/aon-vs-harper/surety-bonds)
- [Aon vs Harper Umbrella and Excess Liability Insurance](https://spot.insure/compare/aon-vs-harper/umbrella-excess)
- [Aon vs Harper Workers’ Compensation Insurance](https://spot.insure/compare/aon-vs-harper/workers-compensation)
- [AIG vs Aon Builders Risk Insurance](https://spot.insure/compare/aig-vs-aon/builders-risk)
- [AIG vs Harper Builders Risk Insurance](https://spot.insure/compare/aig-vs-harper/builders-risk)
- [Alliance Risk vs Aon Builders Risk Insurance](https://spot.insure/compare/alliance-risk-vs-aon/builders-risk)
- [Alliance Risk vs Harper Builders Risk Insurance](https://spot.insure/compare/alliance-risk-vs-harper/builders-risk)
- [Aon vs The Baldwin Group Builders Risk Insurance](https://spot.insure/compare/aon-vs-baldwin/builders-risk)
- [Aon vs Berkshire Hathaway Specialty Insurance Builders Risk Insurance](https://spot.insure/compare/aon-vs-berkshire-hathaway-specialty-insurance/builders-risk)

## Sources for Aon vs Harper Builders Risk Insurance

### Sources About 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.

### Sources About 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. [Construction & Contractors Insurance](https://www.harperinsure.com/industries/construction-insurance). Harper; Know your coverage: What is Construction & Contractors insurance?; Worksite liability, Builders risk, Tools & equipment, Certificates & additional insureds callouts; Who this is for; Why Harper (we know the trades, paperwork that wins bids, every market that writes construction, one call handled); FAQs on contractor insurance, certificate speed, subcontractor injuries, tool theft and cost. Accessed 2026-09-23.
7. [Harper Homepage](https://www.harperinsure.com/). Harper; Industries We Serve carousel: 'Construction & Contractors — From GCs to specialty trades: jobsite liability, builders risk, and the certificates your projects cannot start without.'. Accessed 2026-09-23.

### Sources for the Builders Risk Insurance Guide

8. [Glossary of Insurance Terms](https://content.naic.org/glossary-insurance-terms). National Association of Insurance Commissioners; Builders’ Risk Policies; Ocean Marine; Auto Physical Damage; All-Risk. Accessed 2026-09-16.
9. [Commercial Insurance Guide](https://www.insurance.ca.gov/01-consumers/105-type/95-guides/09-comm/commercialguide.cfm). California Department of Insurance; Commercial Property; Inland Marine; What Should I Expect from a Broker-Agent. Accessed 2026-09-16.
10. [Builders Risk Coverage Form](https://assets.touchpointmarkets.com/e8/58/dec27c1b462c8227b4693fb8ac81/ih-00-70-05-17-builders-risk-coverage-form.pdf). Insurance Services Office, Inc.; hosted by Touchpoint Markets; A.1–3 p.1; B.3.c p.11; C,D,E p.12. Accessed 2026-09-16.
11. [Builders Risk Application Tip Sheet](https://go.usassure.com/rs/381-ISO-510/images/us-assure-builders-risk-application-tip-sheet.pdf). US Assure; General policy application tips p.1; Remodeling tips p.2. Accessed 2026-09-16.

Updated 2026-10-01. 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 Review Scores for 2026

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 Review Scores for 2026

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/builders-risk.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)
