Aon vs 
Markel Insurance: How Do They Compare for Cyber Insurance?
Aon says cyber terms vary and describes broker review and claims advocacy. Markel describes Cyber 360 options including business interruption, eCrime, privacy and security liability, PCI liability, media liability and technology professional liability, with appetite focused on businesses with strong security controls. 3,6
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. 1,2
Markel Insurance: Specialty Business and Products
Markel Insurance is Markel Group's specialty and small-business insurance business, with offerings across packages, workers' compensation, cyber, professional and management liability, property, marine, and surety. Products use different insurers and distribution routes, so compare the issuer and terms shown on the specific quote. 4,5
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. 7,8
Key Differences in Cyber Insurance
Cyber 360 coverage menu and underwriting focus
Aon says cyber insurance is part of risk financing and reviews policies because terms and conditions vary. Markel Insurance lists Cyber 360 options including business and dependent interruption, eCrime, privacy and security liability, PCI liability, media liability and technology professional liability. Markel identifies businesses with strong security controls in financial, professional, retail, manufacturing, technology and healthcare sectors as its target audience. Buyers should verify which options and industries fit the actual policy and jurisdiction. 3 6
Broker review and quote contact
Aon describes claims preparation and advocacy with outside incident-response providers under separate contracts. Markel Insurance invites prospective buyers or brokers to contact Markel or its underwriting team; that invitation does not establish a quote or binding timeline. A buyer can use Aon to compare carrier terms or contact Markel’s team directly, then ask how claims support, limits and exclusions work in the selected form. 3 6
What to Confirm in Cyber Insurance Quotes
Review Scores
These averages can combine ratings for different products, locations, and customer groups, including approximate BBB grade conversions. Read each review for the sources, scope, and calculation.
Aon
Review Score
3 rated sources
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.[4][6][7]
Read Aon reviewsMarkel Insurance
Review Score
2 rated sources
There is little public customer feedback on Markel. Trustpilot shows 2.5 out of 5 from just 5 reviews, and BBB lists 12 complaints closed in the last three years.[4][3]
Read Markel Insurance reviewsOffering Details
Aon vs Markel Insurance: Cyber Insurance: documented features by provider
| Criteria | Aon Cyber brokerage and risk-advisory offering | Markel cyber (official overview) |
|---|---|---|
| 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. 3Company-reported. Aon’s official global product/capability page. The statement is limited to Aon’s marketing of brokerage or advisory services, not policy issuance. | Markel describes offering cyber for the audience stated on the cited product page. 6Company-reported. cyber marketed by markel; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement. |
| 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. 3Not found in reviewed sources. 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. | Confirm in your quote. |
| 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. 3Company-reported. 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. | Businesses with strong security controls; listed sectors include financial and professional services, retail, manufacturing, technology, and healthcare. 6Company-reported. cyber marketed by markel; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement. |
| 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. 3Company-reported. 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. | The cited product page describes Cyber 360 options including business interruption, dependent business interruption, eCrime, privacy/security liability, PCI DSS liability, media liability, and technology professional liability. Marketing description only; actual coverage, exclusions, conditions, limits, and availability depend on the issued policy and jurisdiction. 6Company-reported. cyber marketed by markel; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement. |
| 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. 3Not publicly disclosed. Aon’s global product/capability page reviewed 2026-09-30; no buyer quote or policy form was reviewed. | The cited overview does not set a universal limit or retention for this line. Ask for the proposed policy form, limits, retentions, exclusions, and conditions in the quote. 6Not publicly disclosed. Only the cited marketing page was reviewed for published limit and retention information; no policy-form entitlement is inferred. |
| 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. 3Company-reported. Company-reported brokerage and advisory services. Account-specific service terms are not stated. | Confirm in your quote. |
| How to Apply | Confirm in your quote. | The page invites prospective customers or brokers to contact Markel or the named underwriting team. The page does not establish a quote, bind, or coverage-effective timeline. 6Company-reported. cyber marketed by markel; scope is limited to the cited official product overview and described audience. This is not a policy form or a universal eligibility statement. |
Full Comparison
More Aon vs Markel Insurance Comparisons
Other Cyber Insurance Comparisons
Sources
Aon
- Commercial Risk Solutions U.S. Brokerage Terms of Service. 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.
- 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.
- Cyber Risk. 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.
Markel Insurance
- About us. Markel; Markel at a glance; description of Markel Insurance within Markel Group Inc. Accessed 2026-09-28.
- Markel Group Inc. 2025 Form 10-K. U.S. Securities and Exchange Commission; filed by Markel Group Inc.; Cover page; Part I, Item 1 Business—Markel Insurance, U.S. Wholesale and Specialty, Programs and Solutions; Part II, Item 7/8 for group and segment risks. Accessed 2026-09-28.
- Cyber Insurance Coverage. Markel; Markel Cyber 360; coverages available; business disruption; fraud; privacy/security liability; technology professional liability. Accessed 2026-09-30.
Cyber Insurance Guide
- 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.
- CyberEdge specimen policy. 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.
