---
title: "Heffernan Insurance Brokers vs Mylo Professional Liability (E&O) Insurance"
description: "Mylo explains claims-made versus occurrence forms and tail coverage for E&O; Heffernan's page doesn't address policy form."
canonical: "https://spot.insure/compare/heffernan-vs-mylo/professional-errors-omissions"
page-type: "line-comparison"
updated-at: "2026-09-23"
---

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# Heffernan Insurance Brokers vs Mylo Professional Liability (E&O) Insurance

Mylo explains claims-made versus occurrence forms and tail coverage for E&O; Heffernan's page doesn't address policy form.

## Research Scope and Use

Use this comparison to evaluate Heffernan Insurance Brokers and Mylo for Professional Liability (E&O) 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

Mylo explains the claims-made versus occurrence distinction and tail coverage for professional liability, while Heffernan's small-business page describes the coverage's purpose without addressing policy form. [7](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") [4](https://www.heffins.com/business-insurance/small-business/ "Small Business Insurance")

## What Is Heffernan Insurance Brokers?

Heffernan Insurance Brokers is an independent, Walnut Creek–headquartered retail brokerage that arranges business insurance, employee benefits, and related services. Its technology practice markets to mid- and late-stage companies, including venture-funded and pre-IPO firms. [1](https://www.heffins.com/about-us/our-story/ "Our Story") [2](https://www.heffins.com/business-insurance/technology/ "Technology Company Insurance") [3](https://www.heffins.com/business-insurance/ "Heffernan Business Insurance Brokerage")

[Heffernan Insurance Brokers profile](https://spot.insure/insurance-providers/heffernan)

## What Is Mylo Insurance?

Mylo is an independent insurance broker for small and growing businesses. It recommends coverage and compares available quotes from multiple carriers online or with a licensed advisor; the insurer named on the resulting policy provides the coverage. [5](https://choosemylo.com/business/business-insurance "Small Business Insurance") [6](https://choosemylo.com/our-story "About Mylo")

[Mylo profile](https://spot.insure/insurance-providers/mylo)

## What Is Professional Errors and Omissions (E&O) Insurance?

Professional errors and omissions (E&O) insurance, also called professional liability insurance, addresses claims that professional services or advice caused a client financial loss. What's covered depends on the services actually scheduled in the policy, not the product label alone. [9](https://www.tdi.texas.gov/commercial/pl-faq.html "FAQ: Professional liability insurance") [10](https://www.iii.org/article/professional-liability-insurance "Professional liability insurance") [11](https://www.sba.gov/counseling/launch-your-business/#business-insurance "Get business insurance") [12](https://www.hiscox.com/documents/pl-sample-policy-wording.pdf "Professional Liability – US Direct Errors and Omissions Insurance")

## Key Differences in Professional Liability (E&O) Insurance

### What Triggers a Covered Claim

Mylo describes the policy responding to breach-of-contract claims, bodily injury or property damage claims, financial-loss claims, and consequential-damages claims arising from a client relationship. [7](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") Heffernan's reviewed page describes only claims for problems with a product or service that cause a client financial loss, without naming the broader set of triggers Mylo lists. [4](https://www.heffins.com/business-insurance/small-business/ "Small Business Insurance")

### Explaining the Policy Form

Mylo's page explains that professional liability comes in claims-made and occurrence forms, and that tail coverage can be added to a claims-made policy to extend reporting after it ends:

Mylo explains that professional liability comes in claims-made and occurrence forms, and that tail coverage can be added to a claims-made policy to extend reporting after it ends. [7](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: Product page FAQ; which form and tail terms are offered depends on the placed carrier..)

Heffernan's small-business page does not address policy form, claims-made status or tail coverage for this line at all. [4](https://www.heffins.com/business-insurance/small-business/ "Small Business Insurance")

### How Each Firm Places the Policy

Mylo says it compares professional liability quotes from top-rated business insurance companies to find a combination of coverage and price for businesses ranging from app developers to financial planners to beauty salons. [7](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") [7](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") Heffernan instead shops the line to insurers for small-business clients across a named industry list and builds a custom package when a client's industry isn't already on it. [4](https://www.heffins.com/business-insurance/small-business/ "Small Business Insurance")

## What to Confirm in Professional Liability (E&O) Insurance Quotes

- Ask Mylo whether the quote it finds is claims-made or occurrence, and whether tail coverage is included or priced separately. [7](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance")
- Ask Heffernan whether the policies it places are claims-made or occurrence. [4](https://www.heffins.com/business-insurance/small-business/ "Small Business Insurance")
- Ask both firms which insurer would underwrite your policy, since neither reviewed page names one. [7](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") [8](https://choosemylo.com/contact-your-carrier "Contact Your Carrier") [4](https://www.heffins.com/business-insurance/small-business/ "Small Business Insurance")
- If a client threatens a claim, ask Mylo how to reach a professional-liability-specific claims contact, since its carrier directory doesn't list one. [8](https://choosemylo.com/contact-your-carrier "Contact Your Carrier")

## Offering Details

| Criteria | Heffernan Professional Errors and Omissions Brokerage | Mylo Professional Liability Insurance |
| --- | --- | --- |
| Role in This Line | Heffernan lists errors and omissions among the coverages its small-business division places for clients, shopping the line with insurers rather than underwriting it. [4](https://www.heffins.com/business-insurance/small-business/ "Small Business Insurance") (Evidence: Company-reported; scope: Small Business Insurance page as read on 2026-09-23; no dedicated professional-E&O product page was found..) | Mylo brokers professional liability insurance by comparing quotes from multiple business insurance companies rather than underwriting the policy itself. [7](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: Professional liability product page..) |
| Issuing Insurer | Not described in the reviewed sources. | The professional liability product page and Mylo's carrier-contact directory do not name the insurer that would issue a professional liability policy; the directory groups carriers under generic Auto & Home and Business categories only. [7](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") [8](https://choosemylo.com/contact-your-carrier "Contact Your Carrier") (Evidence: Not publicly disclosed; scope: Checked the professional liability product page and the carrier-contact directory on 2026-09-23; neither ties a named carrier to this line..) |
| Who It’s For | Heffernan's small-business division says it serves sole proprietors through fast-growing companies across industries including construction, food, health care, hospitality, nonprofits, real estate, technology, transportation, and vintners and growers, and will custom-design a package for industries not listed. [4](https://www.heffins.com/business-insurance/small-business/ "Small Business Insurance") (Evidence: Company-reported; scope: Small Business Insurance page as read on 2026-09-23; not exclusively E&O-specific, but describes the buyer base for the page listing this coverage..) | Mylo markets this line to businesses that could face a claim from a client unhappy with their professional services, using examples spanning app development, financial planning and beauty-salon services. [7](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: Product page examples; a particular business's eligibility depends on underwriting..) |
| Coverage Features | Heffernan describes errors and omissions coverage as protecting against claims for problems with a company's product or service that result in a financial loss to a client. [4](https://www.heffins.com/business-insurance/small-business/ "Small Business Insurance") (Evidence: Company-reported; scope: Small Business Insurance page as read on 2026-09-23; the page does not list specific exclusions, claims-made versus occurrence form, or endorsements..) | Mylo describes the policy responding to breach-of-contract claims, bodily injury or property damage claims, financial-loss claims, and consequential-damages claims arising from a client relationship. [7](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: Product page coverage descriptions; actual insuring agreements and exclusions are set by the issued policy..)<br><br>Mylo explains that professional liability comes in claims-made and occurrence forms, and that tail coverage can be added to a claims-made policy to extend reporting after it ends. [7](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: Product page FAQ; which form and tail terms are offered depends on the placed carrier..) |
| Limits and Retentions | The reviewed page does not publish limits, retentions, or premium ranges for errors and omissions coverage. [4](https://www.heffins.com/business-insurance/small-business/ "Small Business Insurance") (Evidence: Not publicly disclosed; scope: Small Business Insurance page as read on 2026-09-23..) | Not described in the reviewed sources. |
| How to Apply | Heffernan directs small-business buyers to contact the firm's small-business division to request a quote and says it will research and build a custom package for industries not already listed. [4](https://www.heffins.com/business-insurance/small-business/ "Small Business Insurance") (Evidence: Company-reported; scope: Small Business Insurance page as read on 2026-09-23..) | Mylo says it recommends coverage customized to the business and compares professional liability quotes from top-rated business insurance companies to find a combination of coverage and price. [7](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: Product page "How will Mylo find me the right policy?" section..) |
| Claims Support | Not described in the reviewed sources. | Mylo's carrier-contact page lists claims phone numbers by carrier for Auto & Home and Business policies generally, but does not identify a professional-liability-specific claims contact or process. [8](https://choosemylo.com/contact-your-carrier "Contact Your Carrier") (Evidence: Not found in reviewed sources; scope: Carrier-contact directory checked 2026-09-23; entries are organized by carrier and general product category, not by coverage line..) |

## Full Comparison

- [Heffernan Insurance Brokers vs Mylo](https://spot.insure/compare/heffernan-vs-mylo): all coverage lines, business roles, service and claims.
- [What Is Professional Errors and Omissions (E&O) Insurance?](https://spot.insure/coverage/professional-errors-omissions): Professional E&O insurance addresses claims that a mistake in your advice or services caused a client financial loss.
- [Heffernan Insurance Brokers vs Mylo Business Owner’s Policy](https://spot.insure/compare/heffernan-vs-mylo/business-owners-policy)
- [Heffernan Insurance Brokers vs Mylo Commercial Auto Insurance](https://spot.insure/compare/heffernan-vs-mylo/commercial-auto)
- [Heffernan Insurance Brokers vs Mylo Cyber Insurance](https://spot.insure/compare/heffernan-vs-mylo/cyber)
- [Heffernan Insurance Brokers vs Mylo Employee Health Benefits](https://spot.insure/compare/heffernan-vs-mylo/employee-health-benefits)
- [Heffernan Insurance Brokers vs Mylo General Liability Insurance](https://spot.insure/compare/heffernan-vs-mylo/general-liability)
- [Heffernan Insurance Brokers vs Mylo Medical Malpractice Insurance](https://spot.insure/compare/heffernan-vs-mylo/medical-malpractice)
- [Heffernan Insurance Brokers vs Mylo Surety Bonds](https://spot.insure/compare/heffernan-vs-mylo/surety-bonds)
- [Heffernan Insurance Brokers vs Mylo Workers’ Compensation Insurance](https://spot.insure/compare/heffernan-vs-mylo/workers-compensation)
- [Alliance Risk vs Heffernan Insurance Brokers Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-heffernan/professional-errors-omissions)
- [Alliance Risk vs Mylo Professional Liability (E&O) Insurance](https://spot.insure/compare/alliance-risk-vs-mylo/professional-errors-omissions)
- [At-Bay vs Heffernan Insurance Brokers Professional Liability (E&O) Insurance](https://spot.insure/compare/at-bay-vs-heffernan/professional-errors-omissions)
- [At-Bay vs Mylo Professional Liability (E&O) Insurance](https://spot.insure/compare/at-bay-vs-mylo/professional-errors-omissions)
- [Beazley vs Heffernan Insurance Brokers Professional Liability (E&O) Insurance](https://spot.insure/compare/beazley-vs-heffernan/professional-errors-omissions)
- [Beazley vs Mylo Professional Liability (E&O) Insurance](https://spot.insure/compare/beazley-vs-mylo/professional-errors-omissions)

## Sources

### Heffernan Insurance Brokers

1. [Our Story](https://www.heffins.com/about-us/our-story/). Heffernan Insurance Brokers; Headquartered in Walnut Creek; nationwide presence; founded 1988; employee owned; niche practices including technology. Accessed 2026-09-16.
2. [Technology Company Insurance](https://www.heffins.com/business-insurance/technology/). Heffernan Insurance Brokers; Pre-IPO and venture-funded heading; mid to late stage specialization; global expansion copy; self-insurance strategies; Key Markets list; Why Heffernan broker history; Joseph Talmadge practice leader; FAQ. Accessed 2026-09-16.
3. [Heffernan Business Insurance Brokerage](https://www.heffins.com/business-insurance/). Heffernan Insurance Brokers; Forward-Thinking Business Insurance: basic coverages (general liability, commercial property and auto, workers’ compensation); corporate and executive protection (EPL, D&O, fiduciary responsibility, cyber, kidnap and ransom); alternative risk capabilities; claims, loss control and risk-management services; industry practice links including Technology and Claims Advocacy. Accessed 2026-09-16.
4. [Small Business Insurance](https://www.heffins.com/business-insurance/small-business/). Heffernan Insurance Brokers; The types of coverage we can provide include... Errors and omissions protects against claims for problems with your product or service that result in a financial loss; industries served list; Specialty Programs; contact for custom-designed packages. Accessed 2026-09-23.

### Mylo

5. [Small Business Insurance](https://choosemylo.com/business/business-insurance). Mylo; Hero; What Insurance Does A Small Business Need (Business Owners Policy listing); Get My Quote; Business Insurance FAQs; commercial-product navigation; footer legal disclosure. Accessed 2026-09-16.
6. [About Mylo](https://choosemylo.com/our-story). Mylo; Your Digital One-Stop Shop; The Broker Advantage; Proven Heritage, Powerful Future; About Mylo FAQs. Accessed 2026-09-15.
7. [Professional Liability Insurance](https://choosemylo.com/business/product-professional-liability). Mylo; Professional Liability? But I Do Good Work; What does professional liability cover?; Professional liability FAQs (claims-made vs. occurrence, tail coverage); How will Mylo find me the right policy?. Accessed 2026-09-23.
8. [Contact Your Carrier](https://choosemylo.com/contact-your-carrier). Mylo; Carrier contact list grouped by Auto & Home, Business and Claims; no professional-liability-specific entry. Accessed 2026-09-23.

### Professional Liability (E&O) Insurance Guide

9. [FAQ: Professional liability insurance](https://www.tdi.texas.gov/commercial/pl-faq.html). Texas Department of Insurance; What’s professional liability coverage?; What types of damages…; What’s general liability insurance?; Do I need professional liability… if I have general liability…?; Is professional liability insurance required?; Can a client require…?; What’s the difference between occurrence policies and claims-made policies. Accessed 2026-09-16.
10. [Professional liability insurance](https://www.iii.org/article/professional-liability-insurance). Insurance Information Institute; Opening paragraphs (professional services/advice and E&O name); Claims not covered by general liability; What types of businesses need professional liability insurance?; What’s covered… and what’s not (claims-made versus occurrence, defense and judgments, non-financial/intentional limits, BOP/in-home exclusion). Accessed 2026-09-16.
11. [Get business insurance](https://www.sba.gov/counseling/launch-your-business/#business-insurance). U.S. Small Business Administration; Six common types of business insurance table. Accessed 2026-09-16.
12. [Professional Liability – US Direct Errors and Omissions Insurance](https://www.hiscox.com/documents/pl-sample-policy-wording.pdf). Hiscox Inc. specimen; About this Policy / Coverage for Claims Made Against You; I.A Insuring Agreement; I.B Defense; I.C Settlement; II.A Notice of Claims; II.C Optional Extended Reporting Period; III.A, III.K, III.M, III.R, III.S Exclusions; IV.A–B Limits and Deductible; VI.O Professional Services; VI.U Wrongful Act. Accessed 2026-09-16.

Updated 2026-09-23. 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.

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