Our Agents

Gary Clausen, CEO - (925) 777-2180

“Our agency is small enough to know who you are and large enough to do anything you need.”
Gary has been in involved in the marine industry for more than 40 years. Born and raised on the California Delta, he has spent most of his life working in and around the boating industry including boat yards, marinas, manufacturing facilities, chandleries and boat & yacht sales. Gary is past president of The Northern California Marine Association. He has been a marine insurance agent since 1989.

Twin Rivers Marine Insurance Agency is celebrating their 23rd year of helping boaters world wide with their insurance needs. Twin Rivers Marine Insurance, works closely with many marine affiliated associations, California Yacht Brokers CYBA, National Association of Marine Surveyors NAMS, Northwest Marine Trade association NMTA, Northwest Yacht Brokers NYBA, Marine Recreation MRA, California Delta Chambers.

Doug Rader, Commercial Marine Insurance Specialist - (209) 334-2858

“My experience and understanding of the current marketplace allows me to pair your policy with your risk.”
Doug is a lifelong boater & water skier. He still spends many summer evenings slalom skiing on the Delta behind his Ski Nautique.He has been a commercial and personal marine insurance specialist for over 30 and has worked for and with the top marine insurance agencies and brokerages in California. He was co-founder and co-owner of Tony Rader & Son Insurance Service in the mid 1980’s.Doug enjoys close business relationships with the leading marine insurers in all parts of the country. Quality and value are his main business principles, and personalized, responsive service is his key to success. He is strongly committed to his clients and works closely with them to identify and address solutions to their coverage needs.He is currently or has been a member of many marine industry and insurance industry trade associations including The Association of Marine Underwriters of San Francisco, Marina and Recreation Association, California Association of Harbormasters & Port Captains, Northern California Marine Association and the Delta Chambers of Commerce.

Shannon Hoye, Agent, Marine, Home, Auto Specialist - (925) 777-2180

“I look forward to reviewing your current policies and anticipate the opportunity to match your needs to the right level of protection you deserve.”
Shannon has been a part of the Twin Rivers team since 2014. Born & raised in Antioch on the Delta, Shannon began her career at Twin Rivers as a Customer Service Representative. Shannon always showed a great interest in becoming an agent and obtained her insurance license in 2015. In 2018, Shannon had the opportunity to move to the sales department to take care of our client’s marine insurance needs.

When Shannon isn’t at the office, you will find her attending boat shows, kayaking, fishing and being a soccer coach. Give Shannon a call to discuss your marine insurance needs.


Roy de Lis Southern California Regional Manager - (949) 867-4151

Roy de Lis, of Huntington Beach, California, joins Twin Rivers Marine Insurance Agency. Roy’s family history around the boating community extends from sea to sea. His grandfather was affectionately known as the “Captain” by his immediate family. Roy’s grandfather was a tugboat captain in NY harbor prior to and during WWII. Roy’s father & uncles worked in the merchant marines prior to WWII.

As a young boy, Roy’s attraction to on the water activities just came naturally. Roy began sailing at the age of 10 and completed the Annapolis sailing school program when he was 14. He began his career in the marine industry at the Jensen Marine plant building CAL sailboats, through a regional occupational program in High School. Before entering college, he worked for a few local boat builders too.

While in college he stayed connected in the industry working with a local marine surveyor & yacht sales broker in Newport Beach. Roy began his career in the Marine Insurance industry as an agent about 18 years ago.

As the Southern California Regional Manager, Roy has written and maintained policies for all kinds of vessels, from Classic yachts to Mega Yachts worldwide. Roy truly enjoys all of his past clients he has helped over the years. He looks forward to his new voyage working with the friendly staff at Twin Rivers. Give him a call to discuss your client’s marine insurance needs, you’ll be glad you did.

Kari Grant: Office Manager / Bookkeeper & Licensed Agent

Erika Hoffmeister: Customer Service Supervisor & Commercial Marine CSR

Jill Russell: Customer Service & Agent Support

Christian Viera : Underwriting Assistant

Kristi Powell: Customer Service & Support Agent