---
title: "Aon vs Gallagher: Cyber Insurance"
description: "Aon reviews varying cyber forms and response-provider arrangements; Gallagher describes first-party and third-party costs for data-handling small businesses and specialist services for larger accounts."
canonical: "https://spot.insure/compare/aon-vs-gallagher/cyber"
page-type: "line-comparison"
updated-at: "2026-09-30"
comparison-pair: "aon-vs-gallagher"
provider-a: "aon"
provider-b: "gallagher"
coverage-line: "cyber"
---

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-gallagher/cyber)

## Agent Guide

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

**Key facts:**
- Line: Cyber Insurance. Providers: Aon and Gallagher.
- 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 Gallagher](https://spot.insure/compare/aon-vs-gallagher) — parent: all coverage lines for this pair
- [Cyber Insurance guide](https://spot.insure/coverage/cyber) — coverage explainer for this line
- [Aon profile](https://spot.insure/insurance-providers/aon) — provider profile (evidence)
- [Gallagher profile](https://spot.insure/insurance-providers/gallagher) — provider profile (evidence)
- [Aon vs Gallagher Commercial Property Insurance](https://spot.insure/compare/aon-vs-gallagher/commercial-property) — sibling comparison (other line, or other pair for this line)
- [Aon vs Gallagher Crime Insurance](https://spot.insure/compare/aon-vs-gallagher/crime) — sibling comparison (other line, or other pair for this line)
- [Aon vs Gallagher D&O Insurance](https://spot.insure/compare/aon-vs-gallagher/directors-officers) — sibling comparison (other line, or other pair for this line)
- [Aon vs Gallagher Employment Practices Liability Insurance](https://spot.insure/compare/aon-vs-gallagher/employment-practices) — sibling comparison (other line, or other pair for this line)
- [Aon vs Gallagher Fiduciary Liability Insurance](https://spot.insure/compare/aon-vs-gallagher/fiduciary) — sibling comparison (other line, or other pair for this line)
- [Aon vs Gallagher General Liability Insurance](https://spot.insure/compare/aon-vs-gallagher/general-liability) — sibling comparison (other line, or other pair for this line)
- [Aon vs Gallagher Kidnap and Ransom Insurance](https://spot.insure/compare/aon-vs-gallagher/kidnap-ransom) — sibling comparison (other line, or other pair for this line)
- [Aon vs Gallagher Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-gallagher/professional-errors-omissions) — sibling comparison (other line, or other pair for this line)
- [Aon vs Gallagher Workers’ Compensation Insurance](https://spot.insure/compare/aon-vs-gallagher/workers-compensation) — sibling comparison (other line, or other pair for this line)
- [AIG vs Aon Cyber Insurance](https://spot.insure/compare/aig-vs-aon/cyber) — sibling comparison (other line, or other pair for this line)
- [AIG vs Gallagher Cyber Insurance](https://spot.insure/compare/aig-vs-gallagher/cyber) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Aon Cyber Insurance](https://spot.insure/compare/alliance-risk-vs-aon/cyber) — sibling comparison (other line, or other pair for this line)
- [Alliance Risk vs Gallagher Cyber Insurance](https://spot.insure/compare/alliance-risk-vs-gallagher/cyber) — sibling comparison (other line, or other pair for this line)
- [Amelia Risk vs Aon Cyber Insurance](https://spot.insure/compare/amelia-risk-vs-aon/cyber) — sibling comparison (other line, or other pair for this line)
- [Amelia Risk vs Gallagher Cyber Insurance](https://spot.insure/compare/amelia-risk-vs-gallagher/cyber) — sibling comparison (other line, or other pair for this line)

# Aon vs Gallagher: How Do They Compare for Cyber Insurance?

Aon reviews varying cyber forms and response-provider arrangements; Gallagher describes first-party and third-party costs for data-handling small businesses and specialist services for larger accounts.

## Research Scope and Use

Use this comparison to evaluate Aon and Gallagher for Cyber 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 says cyber policy terms vary and describes brokerage review and claims advocacy. Gallagher distinguishes first-party breach costs from third-party customer claims and names notification, credit monitoring, legal fees and regulatory fines among possible expenses. [3](https://www.aon.com/en/capabilities/cyber-resilience "Cyber Risk") [9](https://www.gallaghersmallbusiness.com/insurance-products/cyber/ "Cyber Liability Insurance: What is it? Who Needs It?")

## 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 Gallagher?

Gallagher’s technology specialists serve startups through global enterprises, while its executive-risk team supports IPO and M&A needs; small firms seeking one simple digital quote should compare online agencies. [4](https://www.ajg.com/industries/technology-insurance/ "Technology Insurance") [5](https://www.gallaghersmallbusiness.com/technology-services/ "Insurance for Technology & IT Businesses") [6](https://www.ajg.com/insurance/executive-and-financial-risk-insurance/ "Executive and Financial Risk Insurance") [7](https://www.gallaghersmallbusiness.com/legal-information/ "Legal Information") [8](https://www.ajg.com/merger-partners/woodruff-sawyer-is-now-gallagher/ "Woodruff Sawyer Is Now Gallagher")

[Gallagher profile](https://spot.insure/insurance-providers/gallagher)

## What Is Cyber Insurance?

Cyber insurance can help pay covered response costs and claims against your business after a cyber incident. If your business relies on data, software or outside providers, compare response limits, vendor outages and approval rules. [11](https://www.ftc.gov/business-guidance/small-businesses/cybersecurity/cyber-insurance "Cyber Insurance") [12](https://www.aig.com/content/dam/aig/america-canada/us/documents/business/cyber/cyberedge-wording-sample-specimen-form.pdf "CyberEdge specimen policy")

## Key Differences in Cyber Insurance

### Coverage categories and target buyers

Aon says cyber offerings vary by insurer and describes reviewing policy terms. Gallagher distinguishes first-party coverage when a business’s own systems or data are breached from third-party claims by customers, listing notification, credit monitoring, legal fees and regulatory fines as possible costs. Gallagher recommends cyber for businesses handling customer data or electronic payments, including retail, healthcare, finance and home repair. Buyers should verify each listed expense in the form and their quote. [3](https://www.aon.com/en/capabilities/cyber-resilience "Cyber Risk") [9](https://www.gallaghersmallbusiness.com/insurance-products/cyber/ "Cyber Liability Insurance: What is it? Who Needs It?")

### Services by account segment

Aon describes claims advocacy and outside response-provider relationships with separate contracts. Gallagher says larger accounts can access eRiskHub and a dedicated claims team that includes cyber forensic accountants; its small-business page does not describe the same service. Buyers should ask which Gallagher segment will handle them before assigning value to those services. [3](https://www.aon.com/en/capabilities/cyber-resilience "Cyber Risk") [10](https://www.ajg.com/insurance/cyber-liability-insurance/ "Cyber Liability Insurance")

## What to Confirm in Cyber Insurance Quotes

- Ask Gallagher whether your business qualifies for the larger-account claims team and eRiskHub, and which first-party and third-party costs are covered. [3](https://www.aon.com/en/capabilities/cyber-resilience "Cyber Risk") [9](https://www.gallaghersmallbusiness.com/insurance-products/cyber/ "Cyber Liability Insurance: What is it? Who Needs It?")
- Ask Aon who contracts with response providers; ask both brokers for the carrier, limits, retention and service scope by account segment. [3](https://www.aon.com/en/capabilities/cyber-resilience "Cyber Risk") [9](https://www.gallaghersmallbusiness.com/insurance-products/cyber/ "Cyber Liability Insurance: What is it? Who Needs It?")

## Offering Details

| Criteria | Aon Cyber brokerage and risk-advisory offering | Gallagher Cyber Liability Insurance |
| --- | --- | --- |
| Role in This Line | Aon describes cyber insurance brokerage and risk-advisory services. It is not identified as the risk-bearing insurer, and the global page does not name the carrier for a particular placement. [3](https://www.aon.com/en/capabilities/cyber-resilience "Cyber Risk") (Evidence: Company-reported; scope: Aon’s official global product/capability page. The statement is limited to Aon’s marketing of brokerage or advisory services, not policy issuance..) | Gallagher Small Business arranges cyber liability coverage with outside carriers for small businesses; Gallagher's group-level practice separately places cyber coverage with its own risk-consulting services for larger accounts. Gallagher does not underwrite either policy. [9](https://www.gallaghersmallbusiness.com/insurance-products/cyber/ "Cyber Liability Insurance: What is it? Who Needs It?") [10](https://www.ajg.com/insurance/cyber-liability-insurance/ "Cyber Liability Insurance") (Evidence: Company-reported; scope: Small-business cyber product page and the group-level cyber liability page..) |
| Issuing Insurer | The reviewed page does not identify the insurer or the legal producing entity for a specific placement. Ask Aon to identify both for the quoted risk. [3](https://www.aon.com/en/capabilities/cyber-resilience "Cyber Risk") (Evidence: Not found in reviewed sources; scope: Aon’s global product/capability page reviewed 2026-09-30; no buyer quote, binder or policy was reviewed. This does not establish that no insurer or producing entity is available..) | Neither the small-business cyber page nor the group-level cyber liability page names the insurer that would issue a given client's policy. [9](https://www.gallaghersmallbusiness.com/insurance-products/cyber/ "Cyber Liability Insurance: What is it? Who Needs It?") [10](https://www.ajg.com/insurance/cyber-liability-insurance/ "Cyber Liability Insurance") (Evidence: Not publicly disclosed; scope: Checked both pages on 2026-09-23..) |
| Who It’s For | Aon describes cyber services for organizations managing cyber risk. Its global practice page does not publish a complete industry, revenue, security-control or state-by-state eligibility schedule. [3](https://www.aon.com/en/capabilities/cyber-resilience "Cyber Risk") (Evidence: Company-reported; scope: Audience stated by Aon on its global capability page; this does not establish a specific applicant’s eligibility or placement availability by U.S. state..) | Gallagher recommends this coverage for small businesses that handle customer data or accept credit card or electronic-funds-transfer payments, and specifically names retail, healthcare, financial services and home-repair businesses as frequent attack targets. [9](https://www.gallaghersmallbusiness.com/insurance-products/cyber/ "Cyber Liability Insurance: What is it? Who Needs It?") (Evidence: Company-reported; scope: Small-business cyber product page "Who needs Cyber Liability Insurance" section; actual acceptance depends on underwriting..) |
| Coverage Features | Aon describes cyber insurance as one part of cyber risk financing and says it reviews policy offerings because terms and conditions vary. For professional-services firms, it discusses coordinating cyber and professional-liability coverage. This is brokerage guidance and does not establish the terms of any cyber policy. [3](https://www.aon.com/en/capabilities/cyber-resilience "Cyber Risk") (Evidence: Company-reported; scope: Aon’s broker-authored explanation of the insurance line. It does not establish an individual insured’s policy entitlement; the insurer’s form, endorsements and declarations control..) | Gallagher describes two components of cyber coverage: first-party coverage for when a business's own technology or data is breached, and third-party coverage for when a customer sues the business for failing to prevent a breach. It says the policy can cover customer notification, credit monitoring, legal fees and regulatory fines. [9](https://www.gallaghersmallbusiness.com/insurance-products/cyber/ "Cyber Liability Insurance: What is it? Who Needs It?") (Evidence: Company-reported; scope: Small-business cyber product page; a coverage description, not a specific policy's insuring agreement or exclusions..)<br><br>Gallagher's small-business team says cyber insurance rates are flat to down due to competitive market forces despite high-profile losses, and flags generative-AI-driven risks such as more convincing phishing, social-engineering and deepfake attacks as an emerging concern. [9](https://www.gallaghersmallbusiness.com/insurance-products/cyber/ "Cyber Liability Insurance: What is it? Who Needs It?") (Evidence: Company-reported; scope: Small-business cyber product page market-commentary section; a general market view, not a quote for any specific business..) |
| Limits and Retentions | The reviewed page does not state a standard buyer-specific limit, retention or deductible for this placement. Confirm amounts, sublimits and conditions in the quote and issued policy. [3](https://www.aon.com/en/capabilities/cyber-resilience "Cyber Risk") (Evidence: Not publicly disclosed; scope: Aon’s global product/capability page reviewed 2026-09-30; no buyer quote or policy form was reviewed..) | Neither page publishes specific cyber coverage limits, retentions or premium ranges; the small-business page's $60 million claim example is an illustrative scenario, not a stated policy limit. [9](https://www.gallaghersmallbusiness.com/insurance-products/cyber/ "Cyber Liability Insurance: What is it? Who Needs It?") [10](https://www.ajg.com/insurance/cyber-liability-insurance/ "Cyber Liability Insurance") (Evidence: Not publicly disclosed; scope: Checked both pages on 2026-09-23..) |
| Risk Services | Aon describes cyber claims advocacy and preparation and relationships with third-party incident-response providers. The retained official source notes that provider contracts are separate, no performance guarantee is made, and referral remuneration may occur; confirm the providers, scope and compensation applicable to a client. [3](https://www.aon.com/en/capabilities/cyber-resilience "Cyber Risk") (Evidence: Company-reported; scope: Company-reported brokerage and advisory services. Account-specific service terms are not stated..) | For larger accounts, Gallagher's group-level cyber practice gives clients access to the Gallagher eRiskHub risk-management portal and a dedicated claims team that includes cyber forensic accountants; the small-business product page does not describe an equivalent service for that segment. [10](https://www.ajg.com/insurance/cyber-liability-insurance/ "Cyber Liability Insurance") (Evidence: Company-reported; scope: Group-level cyber liability page; not confirmed as included with the small-business product..) |

## Full Comparison

- [Aon vs Gallagher](https://spot.insure/compare/aon-vs-gallagher): all coverage lines, business roles, service and claims.
- [What Is Cyber Insurance?](https://spot.insure/coverage/cyber): Cyber insurance can help pay covered breach response, data recovery, interruption and liability costs; vendor incidents and funds-transfer fraud need separate checks.
- [Aon vs Gallagher Commercial Property Insurance](https://spot.insure/compare/aon-vs-gallagher/commercial-property)
- [Aon vs Gallagher Crime Insurance](https://spot.insure/compare/aon-vs-gallagher/crime)
- [Aon vs Gallagher D&O Insurance](https://spot.insure/compare/aon-vs-gallagher/directors-officers)
- [Aon vs Gallagher Employment Practices Liability Insurance](https://spot.insure/compare/aon-vs-gallagher/employment-practices)
- [Aon vs Gallagher Fiduciary Liability Insurance](https://spot.insure/compare/aon-vs-gallagher/fiduciary)
- [Aon vs Gallagher General Liability Insurance](https://spot.insure/compare/aon-vs-gallagher/general-liability)
- [Aon vs Gallagher Kidnap and Ransom Insurance](https://spot.insure/compare/aon-vs-gallagher/kidnap-ransom)
- [Aon vs Gallagher Professional Liability (E&O) Insurance](https://spot.insure/compare/aon-vs-gallagher/professional-errors-omissions)
- [Aon vs Gallagher Workers’ Compensation Insurance](https://spot.insure/compare/aon-vs-gallagher/workers-compensation)
- [AIG vs Aon Cyber Insurance](https://spot.insure/compare/aig-vs-aon/cyber)
- [AIG vs Gallagher Cyber Insurance](https://spot.insure/compare/aig-vs-gallagher/cyber)
- [Alliance Risk vs Aon Cyber Insurance](https://spot.insure/compare/alliance-risk-vs-aon/cyber)
- [Alliance Risk vs Gallagher Cyber Insurance](https://spot.insure/compare/alliance-risk-vs-gallagher/cyber)
- [Amelia Risk vs Aon Cyber Insurance](https://spot.insure/compare/amelia-risk-vs-aon/cyber)
- [Amelia Risk vs Gallagher Cyber Insurance](https://spot.insure/compare/amelia-risk-vs-gallagher/cyber)

## 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. [Cyber Risk](https://www.aon.com/en/capabilities/cyber-resilience). Aon; Global cyber risk financing/insurance overview and brokerage practice; claims preparation and advocacy, incident response providers and referral remuneration disclosures, lines 194–230 as retained in Aon’s official source record; Professional Services Practice cyber cross-reference, lines 151–156.. Accessed 2026-09-30.

### Gallagher

4. [Technology Insurance](https://www.ajg.com/industries/technology-insurance/). Gallagher; Introduction; Solutions and coverages for the technology industry: Technology errors and omissions including cyber, Intellectual property insurance, Product liability, Employee benefits; Data-driven insights; global network. Accessed 2026-09-16.
5. [Insurance for Technology & IT Businesses](https://www.gallaghersmallbusiness.com/technology-services/). Gallagher Small Business; Protection for IT Professionals & Their Technology-Based Businesses; recommended coverage menu, including Surety Bond Programs; Connect With An Advisor. Accessed 2026-09-16.
6. [Executive and Financial Risk Insurance](https://www.ajg.com/insurance/executive-and-financial-risk-insurance/). Gallagher; Opening (insurance broking and placement); three key services; Directors and Officers; IPO and direct listings; Employment Practices; Fiduciary; Employee Dishonesty (Crime) and Fidelity Bond; Kidnap, Ransom and Extortion; M&A Transactional Insurance. Accessed 2026-09-16.
7. [Legal Information](https://www.gallaghersmallbusiness.com/legal-information/). Gallagher Small Business; Producer identification immediately above Quick Links. Accessed 2026-09-16.
8. [Woodruff Sawyer Is Now Gallagher](https://www.ajg.com/merger-partners/woodruff-sawyer-is-now-gallagher/). Gallagher; Opening; Executive and Financial Risk consulting; Continued access to client portals; contact form. Accessed 2026-09-16.
9. [Cyber Liability Insurance: What is it? Who Needs It?](https://www.gallaghersmallbusiness.com/insurance-products/cyber/). Gallagher Small Business; What is Cyber Insurance?; Do you need cyber liability insurance?; Types of Cyber Liability Insurance (first-party and third-party); Who needs Cyber Liability Insurance; Cyber market trends; Consider this Cyber Liability Insurance claim example. Accessed 2026-09-23.
10. [Cyber Liability Insurance](https://www.ajg.com/insurance/cyber-liability-insurance/). Gallagher; Protect your business from cyber threats; We help you prevent, mitigate, manage and recover from a cybersecurity incident: Cyber exposure preparation, Insurance process preparation, Prevention and ongoing cyber risk management, Claims advocacy; Gallagher eRiskHub; dedicated claims team with cyber forensic accountants. Accessed 2026-09-23.

### Cyber Insurance Guide

11. [Cyber Insurance](https://www.ftc.gov/business-guidance/small-businesses/cybersecurity/cyber-insurance). Federal Trade Commission; Opening; First-Party and Third-Party Coverage; First-Party Coverage; Third-Party Coverage; What Should Your Cyber Insurance Policy Cover. Accessed 2026-09-16.
12. [CyberEdge specimen policy](https://www.aig.com/content/dam/aig/america-canada/us/documents/business/cyber/cyberedge-wording-sample-specimen-form.pdf). AIG; General Terms §§4–6, PDF pp.3–6; Security and Privacy §1 p.11, §2(l)/(p) p.14, §3 pp.15–18, exclusions p.18; Event Management §1 and §2(h), PDF pp.19–20. 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).

## Gallagher Reviews

Review Score: 9.3 / 10 from 3 rated sources, equally weighted.

Gallagher has strong Trustpilot feedback and a favorable historical large-commercial survey result. Neither directly measures today’s US small-business service.

- J.D. Power: Broker satisfaction rank/score 2nd / 855 (Rank / 1,000-point score). 2017 US/Canada large-commercial broker study; participating organizations had at least $100m annual revenue or operating budget; not small-business-specific. Period: 2017 study. Checked 2026-09-25. [JD Power 2017 Large Commercial Insurance Study](https://www.jdpower.com/business/press-releases/jd-power-2017-large-commercial-insurance-study)
- Trustpilot: TrustScore 4.6 (5 stars); 8190 reviews. Global Arthur J. Gallagher & Co. brand profile; mixed countries and insurance lines, not US commercial-only. Period: 976 reviews in prior 12 months; observed 2026-09-25. Checked 2026-09-25. [Gallagher Reviews | Trustpilot](https://www.trustpilot.com/review/www.ajg.com)
- BBB: BBB grade A+ (BBB letter grade). BBB corporate headquarters profile for Gallagher, Rolling Meadows, Illinois. Checked 2026-09-25. [Gallagher | BBB Business Profile](https://www.bbb.org/us/il/rolling-meadows/profile/insurance-companies/gallagher-0654-23000270)

Reviewed 2026-09-25. [Read the sourced review](https://spot.insure/insurance-providers/gallagher/reviews).

## Agent and Developer Resources

- [Markdown page](https://spot.insure/compare/aon-vs-gallagher/cyber.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)