---
title: "At-Bay vs Mylo: Professional Liability (E&O) Insurance"
description: "Mylo explains both claims-made and occurrence E&O, including tail coverage; At-Bay describes its MPL as claims-made-and-reported."
canonical: "https://spot.insure/compare/at-bay-vs-mylo/professional-errors-omissions"
page-type: "line-comparison"
updated-at: "2026-09-25"
comparison-pair: "at-bay-vs-mylo"
provider-a: "at-bay"
provider-b: "mylo"
coverage-line: "professional-errors-omissions"
---

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[Human-readable page](https://spot.insure/compare/at-bay-vs-mylo/professional-errors-omissions)

## Agent Guide

**What this page is:** Focused comparison of At-Bay and Mylo for Professional Liability (E&O) 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 Professional Liability (E&O) Insurance questions about At-Bay versus Mylo. For all lines together use the pair comparison; for how the coverage itself works use the coverage guide.

**Questions this page answers:**
- At-Bay vs Mylo for Professional Liability (E&O) Insurance: how do they differ?
- Which is better for Professional Liability (E&O) Insurance, At-Bay or Mylo?
- What does At-Bay or Mylo publish about Professional Liability (E&O) Insurance (limits, eligibility, claims, add-ons)?

**Key facts:**
- Line: Professional Liability (E&O) Insurance. Providers: At-Bay and Mylo.
- Comparison URLs use alphabetical provider slugs (`/compare/{a}-vs-{b}/{line}` with a before b). A reversed pair redirects permanently to the alphabetical one.

**Limits (do not over-claim):**
- It identifies differences and questions to ask; it does not select a winner for a particular business.
- 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; last updated 2026-09-25.

**Related pages:**
- [At-Bay vs Mylo](https://spot.insure/compare/at-bay-vs-mylo) — all coverage lines for this pair
- [Professional Liability (E&O) Insurance guide](https://spot.insure/coverage/professional-errors-omissions) — how this coverage works
- [At-Bay profile](https://spot.insure/insurance-providers/at-bay) — provider profile
- [Mylo profile](https://spot.insure/insurance-providers/mylo) — provider profile

# At-Bay vs Mylo: How Do They Compare for Professional Liability (E&O) Insurance?

A business that wants someone to compare quotes from several insurers fits Mylo, which brokers professional liability and does not underwrite it. At-Bay markets its own miscellaneous professional liability up to $5 million, with its page aimed at licensed insurance professionals.

Businesses weighing occurrence coverage against claims-made coverage with tail can use Mylo’s form explanations; At-Bay offers claims-made-and-reported MPL.

## At-Bay vs Mylo Professional Liability (E&O) Insurance Summary

Mylo explains both claims-made and occurrence E&O, including tail coverage; At-Bay describes its MPL as claims-made-and-reported. [5](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") [1](https://www.at-bay.com/insurance/mpl/ "MPL Insurance: Coverage Highlights & Appetite")

## What Are the Key Differences Between At-Bay and Mylo Professional Liability (E&O) Insurance?

### Compare Claims-Made and Occurrence Forms

Mylo explains both claims-made and occurrence E&O, including how tail coverage can extend the reporting period after a claims-made policy ends. At-Bay states that its MPL is claims-made-and-reported but does not compare it with an occurrence form. If you have past work to cover, ask how each quote treats prior acts and late-reported claims. [5](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") [1](https://www.at-bay.com/insurance/mpl/ "MPL Insurance: Coverage Highlights & Appetite")

### Broker Comparison or Product Submission

Mylo says it compares professional-liability quotes from multiple business insurers. At-Bay offers its own MPL product through its producer and broker submission channels. Mylo may help you compare providers; At-Bay gives you a named product to submit. [5](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") [2](https://www.at-bay.com/licenses/ "Licenses")

### Identify the Carrier

Neither reviewed page names the insurer for your policy. Mylo’s carrier directory groups contacts generally rather than identifying an E&O carrier; At-Bay’s MPL page also leaves the issuer unnamed. Get the carrier and claims contact from your quote. [6](https://choosemylo.com/contact-your-carrier "Contact Your Carrier") [1](https://www.at-bay.com/insurance/mpl/ "MPL Insurance: Coverage Highlights & Appetite")

## What Should You Confirm in At-Bay and Mylo Professional Liability (E&O) Insurance Quotes?

- Ask Mylo whether its quote options are claims-made, occurrence or both, and what tail coverage costs. [5](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance")
- Ask At-Bay which insurer will issue the MPL and what retroactive date applies. [1](https://www.at-bay.com/insurance/mpl/ "MPL Insurance: Coverage Highlights & Appetite")
- Request the specific carrier and claims-reporting process for either policy. [6](https://choosemylo.com/contact-your-carrier "Contact Your Carrier") [1](https://www.at-bay.com/insurance/mpl/ "MPL Insurance: Coverage Highlights & Appetite")
- Compare actual limits, retentions and premium. [5](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") [1](https://www.at-bay.com/insurance/mpl/ "MPL Insurance: Coverage Highlights & Appetite")

## At-Bay vs Mylo Professional Liability (E&O) Insurance Compared

| Criteria | At-Bay Miscellaneous Professional Liability (MPL) Insurance | Mylo Professional Liability Insurance |
| --- | --- | --- |
| Who It’s For | At-Bay says it provides primary MPL for businesses of all revenue sizes with limits up to $5 million, subject to state restrictions and eligibility requirements detailed in a separate MPL appetite guide. [1](https://www.at-bay.com/insurance/mpl/ "MPL Insurance: Coverage Highlights & Appetite") (Evidence: Company-reported; scope: Current MPL appetite paragraph; the linked appetite guide's specific eligibility requirements were not independently opened for this record..) | 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. [5](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..) |
| How to Apply | At-Bay directs MPL submissions to underwriting by email or through automatic quotes on its Broker Platform, which At-Bay describes as a workflow of creating a quote, customizing limits and retentions, and binding the policy. [1](https://www.at-bay.com/insurance/mpl/ "MPL Insurance: Coverage Highlights & Appetite") [4](https://www.at-bay.com/brokers/platform/ "Broker Platform") (Evidence: Company-reported; scope: Current submission instructions and the general broker-platform workflow description; MPL-specific automation details were not separately confirmed..) | 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. [5](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..) |
| Coverage Features | At-Bay lists MPL coverage highlights including automatic coverage for acquired subsidiaries, claims-made-and-reported coverage, coverage for independent contractors, disciplinary-proceedings defense, a duty-to-defend contract, personal-injury coverage (including emotional distress), punitive damages where insurable, a professional-services definition written for each insured, and an 80/20 hammer clause. [1](https://www.at-bay.com/insurance/mpl/ "MPL Insurance: Coverage Highlights & Appetite") (Evidence: Company-reported; scope: Product-page coverage-highlights list; an 80/20 hammer clause is a settlement provision where the insurer pays 80% and the insured pays 20% of costs after the insured declines a recommended settlement. The issued policy and declarations control actual wording, limits and exclusions..) | 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. [5](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. [5](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..) |
| Role in This Line | At-Bay markets MPL as one of its own named insurance products, sold through its disclosed producer, At-Bay Insurance Services LLC, with the product page directed at "properly licensed insurance professionals" submitting business rather than at direct retail buyers. [1](https://www.at-bay.com/insurance/mpl/ "MPL Insurance: Coverage Highlights & Appetite") [2](https://www.at-bay.com/licenses/ "Licenses") (Evidence: Company-reported; scope: Current MPL product page and license disclosures; this describes the distribution channel, not who bears the underwriting risk..) | Mylo brokers professional liability insurance by comparing quotes from multiple business insurance companies rather than underwriting the policy itself. [5](https://choosemylo.com/business/product-professional-liability "Professional Liability Insurance") (Evidence: Company-reported; scope: Professional liability product page..) |

## About At-Bay and Mylo and Professional Liability (E&O) Insurance

- [At-Bay company profile](https://spot.insure/insurance-providers/at-bay) · [At-Bay customer reviews](https://spot.insure/insurance-providers/at-bay/reviews)
- [Mylo company profile](https://spot.insure/insurance-providers/mylo) · [Mylo customer reviews](https://spot.insure/insurance-providers/mylo/reviews)
- [What Is Professional Errors and Omissions (E&O) Insurance?](https://spot.insure/coverage/professional-errors-omissions)

## Related Pages for At-Bay vs Mylo Professional Liability (E&O)

- [At-Bay vs Mylo](https://spot.insure/compare/at-bay-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 liability can help pay covered defense costs and losses when a client says your advice or service caused financial harm; check services and reporting terms.
- [At-Bay Professional Liability (E&O) Insurance](https://spot.insure/insurance-providers/at-bay/professional-errors-omissions)
- [Mylo Professional Liability (E&O) Insurance](https://spot.insure/insurance-providers/mylo/professional-errors-omissions)

## Sources for At-Bay vs Mylo Professional Liability (E&O) Insurance

### Sources About At-Bay

1. [MPL Insurance: Coverage Highlights & Appetite](https://www.at-bay.com/insurance/mpl/). At-Bay; MPL Coverage Highlights list; MPL Appetite paragraph; Send us your submissions; "material on this page is intended for use solely by properly licensed insurance professionals". Accessed 2026-09-23.
2. [Licenses](https://www.at-bay.com/licenses/). At-Bay; Producer introduction; agency and surplus-lines footer naming At-Bay Insurance Services LLC. Accessed 2026-09-16.
3. [At-Bay Doubles Miscellaneous Professional Liability Appetite](https://www.at-bay.com/press_releases/at-bay-doubles-mpl/). At-Bay; September 28, 2023 release: final paragraph before Media Contacts. Accessed 2026-09-16.
4. [Broker Platform](https://www.at-bay.com/brokers/platform/). At-Bay; How it works: Create a quote, Customize your quote, Bind your policy, Manage renewals; FAQs. Accessed 2026-09-16.

### Sources About Mylo

5. [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.
6. [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.

Updated 2026-09-25. 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.

## Agent and Developer Resources

- [Markdown page](https://spot.insure/compare/at-bay-vs-mylo/professional-errors-omissions.md)
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