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GREAT FRIENDS FOR LIFE.

GNIU is a full-line agency, offering life, non-life and health insurance products. It has become a one-stop-shop for customers’ insurance needs.

GNIU MISSION

Great National Insurance Underwriters

To help the community we serve to better manage the risks of daily life by providing insurance products at fair prices; settling claims fairly and expeditiously; and delivering value-added service to our customers

GNIU VISION

Great National Insurance Underwriters

Our vision for the future is to be the preferred provider of insurance products and services in Guam and Micronesia and continue to be one of the industry leaders in the region.

GNIU VALUES

Great National Insurance Underwriters

Our accomplishments since 1973 are built on a foundation of collective principles – professional customer service, long-term relationships, integrity, trust, and financial stability.

GNIU is the Managing General Agent of Chung-Kuo Insurance Company, Limited – one of the three largest admitted insurers on Guam.

GNIU currently employs over 30 staff servicing thousands of customers in two convenient locations: Tamuning Main Office and Micronesia Mall Branch.

GNIU ranks as one of the top five insurance agencies on Guam.

MEET OUR STAFF

Almina B. Bustos, CISR

Production Manager

Wildemonte A. Ubay

Claims Manager

Rita G. General

Micronesia Mall Branch Supervisor

Robert B. Bumagat

Life Representative

3 GOOD REASONS TO CHOOSE

GREAT NATIONAL INSURANCE UNDERWRITERS

CONVENIENCE

Opens 7 days a week.
Visit our Micronesia Mall
Open Monday to Sunday

STABILITY

Servicing Guam since 1973

ONE STOP INSURANCE

Great National offers all line of insurance to meet your insurance needs

CONTACT US

Tamuning Main Office

1st Floor GNI Complex Chalan San Antonio Tamuning, Guam 96913

Mailing Address: P.O. Box GA Hagatna, Guam 96910

Phone No.:  (671) 646-5736
Fax No.: (671) 649-2418

Micronesia Mall

1st Floor Payless Wing Micronesia Mall, Marine Drive, Dededo Guam

Phone No.:  (671) 632-5296
Fax No.: (671) 632-5406

YOU CAN ALSO SEND US YOUR INQUIRIES ON THESE FOLLOWING EMAIL ADDRESSES.

EMAIL:
info@greatnationalinsurance.com

FOR INSURANCE QUOTES:
abustos@greatnationalinsurance.com

FOR BILLING STATEMENTS:
icastro@greatnationalinsurance.com

FOR INSURANCE CLAIMS:
wubay@greatnationalinsurance.com

FOR LIFE INSURANCE INQUIRIES:
rbumagat@greatnationalinsurance.com