Six small businesses will split $15 million in work on U.S. Navy boats measuring 50 feet long or longer, under a Navy contract modification announced on Sept. 7. Five of the businesses are based in San Diego County.

The businesses providing marine boatyard services and industrial support are Epsilon Systems Solutions Inc. of National City, Integrated Marine Services of Chula Vista, Marine Group Boat Works of Chula Vista, Miller Marine Inc. of Chula Vista, Nielsen Beaumont Marine of San Diego and Al Larson Boat Shop Inc. of San Pedro.

Work will last through September 2018.

The Southwest Regional Maintenance Center of San Diego awarded the deals.