OneBeacon stands by our promise to provide our distribution partners and policyholders with superior claim service. From the initial loss report to claim resolution, our highly dedicated, experienced claim professionals will guide you every step of the way.

Our team is committed to making contact with our policyholders within one business day of receiving your claim. Our mission is not complete until we have provided a timely, fair and ethical resolution based on your policy’s terms.

Call: 877.248.3455 to check on the status of an existing claim or to speak to a OneBeacon Claims representative.

Business Segments:

A.W.G. Dewar

Phone: 617.774.1555

International Marine Underwriters

Joe Gallagher
Phone: 678.255.7606

OneBeacon Accident Group

Larry Wagner
Phone: 303.531.3806

OneBeacon Architects & Engineers

Jeffrey Neidle
Phone: 860.321.2914

OneBeacon Entertainment

Steven Baltzell
Phone: 781.332.8005

OneBeacon Environmental

Kathryn Lindley
Phone: 952.852.2476

OneBeacon Financial Institutions

Raymond Tiburzi
Phone: 212.440.6575

OneBeacon Financial Services

Daniel Ryan
Phone: 952.852.0479

OneBeacon Government Risks

Aaron Stone
Phone: 952.852.0829

OneBeacon Healthcare - Managed Care

Virginia Troy
Phone: 860.321.2901

OneBeacon Healthcare - Medical Excess

Doug Bloomquist
Phone: 860.321.2903

OneBeacon Healthcare - Medical Professional

Thomas Ruane
Phone: 860.321.2902

OneBeacon Management Liability

Katherine Tower
Phone: 312.821.4744

OneBeacon Media Liability

Emily Caron
Phone: 913.945.3017

OneBeacon Program Group

Bryan Wakefield
Phone: 303.531.3873

OneBeacon Specialty Property

Laura Hughes
Phone: 303.531.3861

OneBeacon Surety Group

Terence Dahl
Phone: 212.440.6550

OneBeacon Technology Insurance

Dana Lenahan
Phone: 952.852.0481

Property and Casualty:

Workers Compensation

Cindy Van Eyll
Phone: 952.852.0828

Dedicated Workers Compensation Website
A dedicated website is available to help producers and policyholders through the workers compensation claims process.


Rick Chilingarian
Phone: 303.531.3851

Existing Glass Claims:
If you have any questions regarding your existing auto glass claim, please contact

Information Gathering


Laura Hughes
Phone: 303.531.3861


Cynthia Arends
Phone: 952.852.3432


Sean Duffy

Chief Claims Officer
Phone: 952.852.2469

Lynda Fossing

VP Claims Operations & IT
Phone: 952.852.6738

Special Investigations Unit:

Boris Shekhtman

SIU Director
Phone: 781.332.9517

If you suspect fraudulent activity related to a claim against a company within the OneBeacon Insurance Group, call this number to report it safely and anonymously.

Fraud Tip Line: 877.248.6182

To Report a Claim:

laptop iconOnline:

Instructions for online reporting



Exclusions noted below:

A.W.G. Dewar

International Marine Underwriters: visit website

OneBeacon Accident Group: visit website

OneBeacon Architects & Engineers: visit website

OneBeacon Entertainment: (except workers compensation claims): visit website

OneBeacon Financial Services: visit website

OneBeacon Healthcare Group

OneBeacon Management Liability: visit website

phone iconPhone:

Call our 24-hour claim service center: 877.248.3455

  • Roadside assistance
  • Auto glass replacement or repair
  • Questions about an existing claim
paperclip iconEmail or Fax:


Email us at:

Non-workers compensation - 866.213.2802

Workers compensation - 800.224.4416

broker icon
Contact your OneBeacon agent or broker