Granite State Insurance Company

Contact Us

1271 Ave of the Americas
Floor 41
New York, NY




For claims related matters call: 1-877-399-6442

Granite State Insurance Company: a member company of AIG

Need to Submit a Claim or Discuss an Existing Claim?

For claims related matters - Available 24 - 7

Phone: 1-877-399-6442

Workers's Compensation

New Loss Submissions:
Fax: 1-866-420-1404

General Claims Documentation submission:
fax: 1-866-958-1211

Mailing address:
P.O. Box 25908
Shawnee Mission, KS   66225

Property & Casualty

New Loss Submission:
Fax: 1-866-797-1077

General Claims Documentation Submission:
Fax: 866-739-6983

Mailing Address:
P.O. Box 25588
Shawnee Mission, KS   66225

For over 130 years, we’ve served our clients by mitigating risks. We provide property and casualty insurance to solve the challenges of today managing risks to keep our clients safer and enable them to grow. Throughout our history, our company has grown to provide new solutions that meet our clients’ needs. Today, as part of AIG, we draw on our deep experience in managing risks to keep our clients safer and enable them to grow.

Our Products

  • Automobile Insurance
  • Boiler and Machinery Insurance
  • Homeowners Insurance
  • Personal Injury Liability Insurance
  • Property Insurance
  • Surety Insurance
  • Workers’ Compensation Insurance


1885 - Granite State Fire Insurance Company incorporates in New Hampshire
1921 - New Hampshire Insurance Company acquires Granite State Fire Insurance Company
1959 - Granite State Fire Insurance Company changes name to Granite State Insurance Company
1969 – We become part of AIG