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
What Is Lockton?
Lockton suits technology companies and larger businesses seeking a broker across cyber, D&O, property, liability and benefits; small firms wanting an instant standard quote should compare digital agencies. 4,5,6
What Is Fiduciary Liability Insurance?
Fiduciary liability can protect your company and plan fiduciaries when participants claim mishandling of an employee benefit plan. If you sponsor a retirement or health plan, check who is insured and whether both administration errors and fiduciary-breach claims are addressed. 8,9,10
Key Differences in Fiduciary Liability Insurance
Placement and Plan Fit
Lockton places fiduciary insurance for companies and plan managers, acting as broker rather than insurer. Aon likewise describes helping arrange or advise on fiduciary coverage, but ties its stated practice audience to law, accounting, and consulting. The operational comparison is therefore the brokerage service and proposed carrier, not a direct insurer choice. Ask who will negotiate the policy and handle a claim for the plan sponsor. 3 7
Published Coverage and Services
Lockton says typical wording can address benefit-law breaches, administration errors, and voluntary-compliance losses, with certain fines only when explicitly stated; it distinguishes fiduciary liability from an ERISA bond covering theft of plan assets. It also describes an integrated claims team. Aon’s overview does not list these terms or support. Buyers should verify both the required bond and optional liability coverage. 3 7
What to Confirm in Fiduciary Liability 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 reviewsLockton
Review Score
3 rated sources
Lockton’s reviews vary by office and entity. Local Google-derived ratings provide some service feedback, but no reliable firmwide verdict.[2][6][7][8]
Read Lockton reviewsOffering Details
Aon vs Lockton: Fiduciary Liability Insurance: documented features by provider
| Criteria | Aon Fiduciary Liability brokerage and risk-advisory offering | Lockton Fiduciary Liability Insurance Brokerage |
|---|---|---|
| Role in This Line | Aon presents Fiduciary Liability as a line its Professional Services Practice helps arrange or advise on for professional-service firms. Aon is describing a global brokerage and advisory service, not issuing the underlying policy. The producing legal entity and carrier for any particular placement are not named on this page. 3Company-reported. Aon’s global professional-services practice page. This establishes a marketed brokerage/advisory offering, not policy issuance or account-specific placement. | Lockton places fiduciary liability insurance to protect companies and the individuals who manage their employee benefit plans against claims of mismanagement; Lockton is the broker, not the insurer. 7Company-reported. Fiduciary liability product page as read 2026-09-23. |
| 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. 3Not found in reviewed sources. 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 page does not name the insurers Lockton places fiduciary liability coverage with. 7Not publicly disclosed. Fiduciary liability page checked 2026-09-23. |
| Who It’s For | Aon identifies law, accounting and consulting firms as the audience for its global Professional Services Practice. That audience scope does not establish eligibility for every firm or other business. 3Company-reported. Audience described for Aon’s global professional-services practice. It does not establish U.S. state availability or underwriting eligibility for a placement. | Lockton says coverage under a fiduciary liability policy it places typically extends to the organization, the benefit plans, employees, subsidiaries as defined in the policy, spouses/domestic partners, estates/heirs, past employees retained as fiduciaries or consultants, and committees and trustees. 7Company-reported. Fiduciary liability product page as read 2026-09-23. |
| Coverage Features | Aon lists Fiduciary coverage within the professional-services practice’s property-and-casualty coverages. The page does not describe covered fiduciary acts, plans, exclusions or policy terms. 3Company-reported. 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. | Lockton says a typical fiduciary liability policy it places covers breaches of benefit laws, errors and omissions in plan administration, voluntary compliance loss, and, when explicitly stated, certain fines and penalties such as under HIPAA, the Pension Protection Act and the ACA. It also notes fiduciary liability is distinct from an ERISA bond, which is legally required and insures plan assets against theft under a crime/fidelity policy, whereas fiduciary liability is not legally required but covers governance and decision-making risk. 7Company-reported. Fiduciary liability product page as read 2026-09-23. General policy-structure description, not a specimen form. |
| 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. 3Not publicly disclosed. Aon’s global practice page as reviewed 2026-09-30; no quote, bond form or issued policy was reviewed. | Confirm in your quote. |
| Risk Services | Aon says its professional-services advisors use industry knowledge, insights, data and tools to support risk-management and human-capital decisions. This is a company-described advisory service, not a claim outcome or policy benefit. 3Company-reported. Company-reported advisory services on Aon’s global practice page; account-specific service scope is not stated. | Confirm in your quote. |
| Claims Support | Confirm in your quote. | Lockton's Professional & Executive Risk Claims team integrates insurance and claims counsel within the broking team, which Lockton says is meant to have claims strategy in place before a fiduciary liability claim arises. 7Company-reported. Fiduciary liability product page as read 2026-09-23. |
Full Comparison
More Aon vs Lockton Comparisons
Other Fiduciary Liability 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.
- Professional Services Practice. Aon; Named professional-services audiences and global advisory role, lines 125–128; line offerings and explanations lines 131–190; contact link lines 120–122. Global practice page; no U.S. state or account-specific placement schedule. Accessed 2026-09-30.
Lockton
- Lockton United States. Lockton; Opening description of independent insurance brokerage for risk, benefits and retirement; Ask an Expert link to contact-us. Accessed 2026-09-16.
- Technology. Lockton; Industry introduction; cyber liability heading; dedicated technology team; listed services including claims advocacy, contract review, directors and officers liability, and international program design; 24/7 service model. Accessed 2026-09-16.
- US Terms of Business. Lockton; Opening entity definition; Surplus Lines; Use of a Particular Insurer; Compensation Disclosure; servicing, claims handling and renewal language in Confidentiality section; Intermediaries. Accessed 2026-09-16.
- Fiduciary Liability Insurance. Lockton; What is fiduciary liability insurance?; Typical coverage on a fiduciary liability policy; Who can be covered under a fiduciary liability policy?; How does fiduciary liability insurance complement similar lines of coverage; Claims management. Accessed 2026-09-23.
Fiduciary Liability Insurance Guide
- Field Assistance Bulletin No. 2008-04: Guidance Regarding ERISA Fidelity Bonding Requirements. U.S. Department of Labor, Employee Benefits Security Administration; Q2 pp.2–3. Accessed 2026-09-16.
- Fiduciary Liability. Travelers Casualty and Surety Company of America; II.D,J–L pp.2–3; II.A p.1; II.V p.5; Header p.1; II.M p.3; I p.1; III.A.6–8 pp.5–6; II.M.2 p.3; III.B.1 p.6. Accessed 2026-09-16.
- Fiduciary Liability Insurance. Travelers; What Is Fiduciary Liability Insurance? Accessed 2026-09-16.
