Platte River Insurance Company

BestLink

AMB #: 012488 NAIC #: 18619 FEIN #: 560997453

Mailing Address
P.O. Box 5900
Madison, Wisconsin 53705-0900

United States

Web: www.capspecialty.com

Phone: 608-829-4200

View Additional Address Information

Administrative Office
1600 Aspen Commons
Middleton, Wisconsin 53562-4718
United States

Domiciliary Address
10306 Regency Parkway Drive
Omaha, Nebraska 68114-3743
United States

AM Best Rating Unit: AMB #: 005716 - CapSpecialty Insurance Group

Assigned to insurance companies that have, in our opinion, a superior ability to meet their ongoing insurance obligations.

View additional news, reports and products for this company.

Based on AM Best's analysis, 058334 - Berkshire Hathaway Inc. is the AMB Ultimate Parent and identifies the topmost entity of the corporate structure. View a list of operating insurance entities in this structure.

Best's Credit Ratings

Financial Strength View Definition

Rating (Rating Category): Affiliation Code:	A+ (Superior) g (Group)
Outlook (or Implication):	Stable
Action:	Upgraded
Effective Date:	March 11, 2026
Initial Rating Date:	March 05, 2002

Long-Term Issuer Credit View Definition

Rating (Rating Category):	aa- (Superior)
Outlook (or Implication):	Stable
Action:	Upgraded
Effective Date:	March 11, 2026
Initial Rating Date:	November 16, 2005

Financial Size Category View Definition

Financial Size Category:

IX (USD 250 Million to Less than 500 Million)

u Denotes Under Review Best's Rating

Best's Credit Rating Analyst

Rating Office: A.M. Best Rating Services, Inc.

Senior Financial Analyst: Guilherme Monteiro Simoes, CFA

Director: Gregory Dickerson

Note: See the Disclosure information Form or Press Release below for the office and analyst at the time of the rating event.

Disclosure Information

Disclosure Information Form
View AM Best's Rating Disclosure Form

Press Release
AM Best Upgrades Credit Ratings for Members of CapSpecialty Insurance Group
March 11, 2026

Rating History

A.M. Best has provided ratings & analysis on this company since 2002.

Financial Strength Rating

Effective Date	Rating
March 11, 2026	A+
February 20, 2025	A
February 02, 2024	A
January 10, 2023	A
October 21, 2022	A u
November 17, 2021	A

Long-Term Issuer Credit Rating

Effective Date	Rating
March 11, 2026	aa-
February 20, 2025	a+
February 02, 2024	a+
January 10, 2023	a+
October 21, 2022	a u
November 17, 2021	a

Best's Credit & Financial Reports

Best's Credit Report - financial data included in Best's Credit Report reflects the data used in determining the current credit rating(s) for AM Best Rating Unit: AMB #: 005716 - CapSpecialty Insurance Group.

Best's Credit Report - Archive - reports which were released prior to the current Best's Credit Report.

Best's Financial Report - financial data included in Best's Financial Report reflects the most current data available to AM Best, including updated financial exhibits and additional company information, and is available to subscribers of Best's Insurance Reports.

Best's Financial Report - Archive - reports which were released prior to the current Best's Financial Report.

View additional news, reports and products for this company.

Press Releases

Date	Title


Mar 11, 2026	AM Best Upgrades Credit Ratings for Members of CapSpecialty Insurance Group
Feb 20, 2025	AM Best Revises Outlooks to Positive for Members of CapSpecialty Insurance Group
Feb 02, 2024	AM Best Affirms Credit Ratings of Capital Indemnity Corporation and Its Subsidiaries
Jan 10, 2023	AM Best Removes From Under Review With Positive Implications and Upgrades Credit Ratings of Alleghany Corp and Its Affiliates
Oct 21, 2022	AM Best Places Credit Ratings of Alleghany Corporation and Its Affiliates Under Review With Positive Implications
Mar 21, 2022	AM Best Comments on Credit Ratings of Alleghany Corporation and Affiliates Following Announced Acquisition by Berkshire Hathaway
Nov 17, 2021	AM Best Affirms Credit Ratings of Alleghany Corp, Transatlantic Re Co and RSUI Group; Revises ICR Outlook for CapSpecialty Group
Oct 29, 2020	AM Best Affirms Credit Ratings of Alleghany Corp., Transatlantic Re Co. and Members of RSUI Group and CapSpecialty Insurance Grp
Oct 30, 2019	AM Best Affirms Credit Ratings of Transatlantic Reinsurance Company and Alleghany Corporation
Nov 02, 2018	A.M. Best Affirms Credit Ratings of Transatlantic Reinsurance Company and Alleghany Corporation

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