Bay Harbor Re

What Bay Harbor Re does

Bay Harbor Reinsurance Company, doing business as Bay Harbor Re, is a Cayman Islands-domiciled reinsurer that writes U.S. personal and commercial property and casualty quota share treaties. The company was founded in October 2022 with operational headquarters in Brighton, Michigan, and a distributed team of approximately 16 professionals located across Florida, Michigan, Connecticut, North Carolina, and Ohio. It makes an IRC Section 953(d) election, which allows it to be treated as a domestic U.S. insurer for tax purposes while operating from Cayman, and it is supported by a single large private investor who also owns an A-rated U.S. property and casualty insurance company.

Bay Harbor Re's product set comprises four treaty lines — Casualty, Property, Captives, and Worker's Comp — sold as customized, multi-year quota share arrangements to two distinct cedent segments: U.S. insurance carriers and captive insurance entities. Cedent relationships and treaty terms are negotiated individually rather than transacted through a digital platform or standardized product, and the company maintains no public disclosure of proprietary technology, pricing models, or data assets. The go-to-market is therefore relationship-driven, with treaty origination driven by the team's prior roles at carriers, MGAs, and reinsurance providers.

The business model generates revenue from premium earned on assumed quota share cessions, net of ceding commissions and losses retained by cedents, with underwriting capacity supported by two secured credit facilities totaling $200 million from NAIC-approved domestic banking partners (Comerica Bank and Barclays). Capital backing from a single large private investor provides balance sheet support, while the 953(d) structure and Cayman domicile are designed to optimize capital efficiency for cross-border reinsurance. External validation has begun, with the firm and team member Chris O'Connor receiving recognition at the 2025 Captive Review Cayman Awards.

Name

Bay Harbor Re

Legal name

Bay Harbor Reinsurance Company

Website

https://bayharborre.com

Company type

Private

Founded year

2022

Operating status

Operating

Headcount range

51–100 employees

Short description

Bay Harbor Re is a Cayman Islands-domiciled reinsurer that provides U.S. personal and commercial property and casualty quota share capacity to insurance carriers and captive insurance entities, operating from Brighton, Michigan with a multi-state team.

Ownership category

akta.pro rank

Product category

Property and Casualty Reinsurance

NAICS

Reinsurance Carriers (524130), Direct Insurance (except Life, Health, and Medical) Carriers (52412)

SIC

Fire, Marine & Casualty Insurance (6331)

akta.pro primary industry

Property Treaty Reinsurance (FSAOAEAC)

akta.pro secondary industries

Credit & Surety Treaty Reinsurance (FSAOAEAI), Treaty Reinsurance Brokerage (FSAOAHAA)

Keywords

• Quota share reinsurance
• Property casualty reinsurance
• Treaty underwriting
• Captive reinsurance
• Reinsurance capacity

Headquarters

HQ city

Bradenton

HQ country

United States

HQ region

North America

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Quota share reinsurance premiums: Bay Harbor earns premium and corresponding loss share on U.S. personal and commercial property and casualty quota share treaties ceded by insurance carriers and captive insurance entities. Income is treaty-based and recurring, structured individually per partner (cession percentages, commissions, profit commissions, loss corridors). Two secured credit facilities from NAIC-approved domestic banking partners support underwriting capacity and collateralization (letters of credit, trusts) provided to cedants.
2. Investment income on float and capital: As a collateralized reinsurer holding capital from a single large investor with decades of insurance experience (and who also owns an A-rated P&C insurance company), Bay Harbor generates investment income on reserves and collateral supporting its treaty portfolio, in addition to underwriting margins.

Pricing tiers

Go-to-market motion3 records

Distribution channels2 records

Marketing channels4 records

Core offering

Bay Harbor Reinsurance Company is a Cayman Islands-domiciled reinsurer that underwrites and structures customized U.S. personal and commercial property and casualty quota share treaties for insurance carriers and captive insurance entities. The firm analyzes each treaty individually to deliver pricing stability, flexibility, and collateralized capacity (letters of credit and trusts) across all 50 U.S. states, supported by two secured credit facilities from NAIC-approved domestic banking partners and a single large investor that also owns an A-rated P&C insurance company.

Product overview

Bay Harbor offers a single, unified reinsurance offering rather than a platform-plus-modules architecture. Its core service is the underwriting and structuring of U.S. personal and commercial property and casualty quota share treaties, delivered through four named coverage lines: Casualty, Captives, Property, and Worker's Comp reinsurance treaties. The company partners with insurance carriers and captives across all 50 U.S. states, analyzing and structuring each treaty individually to deliver flexibility, protection, and pricing stability to its cedant partners.

Differentiator

Problem solved

Functional benefit

Products and services

• Casualty Reinsurance Treaty Customized personal and commercial casualty quota share treaty structured to provide maximum flexibility, protection, and pricing stability for cedant insurance carriers and captives across all 50 U.S. states.
• Property Reinsurance Treaty Customized personal and commercial property quota share treaty analyzed and structured per treaty to deliver pricing stability and targeted returns for cedant partners nationwide.
• Captives Reinsurance Treaty Reinsurance treaty designed to partner with captive insurance vehicles, providing tailored quota share protection and security solutions including letters of credit and trusts.
• Worker's Comp Reinsurance Treaty Customized worker's compensation quota share treaty extending Bay Harbor's U.S. personal and commercial property and casualty footprint to worker's comp cedants.

Quantifiable outcome

• Coverage spanning all 50 U.S. states for personal and commercial P&C quota share treaties

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators8 records

Recent moves5 records

Expansion highlights4 records

Emerging players

• SkyCover Insurance: Specialty reinsurer focused on property catastrophe and P&C treaty business. Comparable as a smaller emerging reinsurer competing in similar niche treaty segments, particularly property quota share.
• Third Point Reinsurance: Bermuda-based specialty reinsurer backed by Third Point's hedge fund capital, offering property and casualty treaty reinsurance. Comparable as a newer, capital-backed reinsurer competing in similar P&C lines, though with a different capital structure.
• Greenlight Re: Cayman-domiciled specialty reinsurer offering multi-line property and casualty treaty business. Comparable as a similarly structured (Cayman domicile) smaller specialty reinsurer pursuing flexible underwriting in P&C lines.

Broad incumbents

• Hannover Re: Major global reinsurer with a sizable U.S. treaty portfolio and catastrophe expertise. Comparable as a broad incumbent in the U.S. P&C quota share market where Bay Harbor competes for cedant relationships.
• PartnerRe: Mid-to-large global reinsurer with a strong North American P&C treaty book. Comparable as an incumbent offering overlapping property, casualty, and specialty quota share treaties to U.S. carriers and captives.
• Everest Re: Major Bermuda-domiciled reinsurer with U.S. P&C treaty operations. Comparable as an incumbent offering personal and commercial P&C quota share capacity, with a similar tax-efficient offshore structure as Bay Harbor.
• White Mountains Insurance Group: Bermuda-based insurance and reinsurance holding company with significant specialty reinsurance operations. Comparable as a broader incumbent with reinsurance subsidiaries competing in U.S. P&C treaty and captive-related lines.
• RenaissanceRe: Specialty reinsurer with strong catastrophe and U.S. P&C treaty capabilities. Comparable as an incumbent competing for similar cedant relationships in U.S. property and casualty quota share, particularly catastrophe-exposed lines.
• Munich Re: One of the world's largest reinsurers with deep U.S. P&C quota share and treaty capabilities. Comparable as a global incumbent competitor in the same treaty reinsurance space, though with vastly broader product breadth and capital base than Bay Harbor.
• Swiss Re: Global reinsurance leader with significant U.S. P&C treaty business. Comparable as a broad incumbent providing overlapping P&C quota share capacity, but operating at much larger scale and across multiple specialty lines.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/BayHarbor_Re
• LinkedInlinkedin.com/company/bay-harbor-re

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 records

Funding overview

Funding rounds2 records

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Bay Harbor Re