Agency History

Founded in 1919, Walter Mortensen Insurance has a long history and tradition in Southern California, growing to six offices in the state. In 2005, WMI was acquired by a large Dallas-based agency, Guaranty Insurance Services, with multiple locations throughout Texas.

In April 2011, Guaranty and Walter Mortensen Insurance became part of the INSURICA Insurance Management Network and rebranded in 2012. Our clients now have access to many new resources available through the vast INSURICA network delivered by the same local relationships they’ve come to trust.

In February 2016, WMI/INSURICA expanded again by acquiring Turner & Associates Insurance Agency. The addition of Turner’s offices located in Lindsay and Porterville further establishes INSURICA’s presence in the area.

Areas of Specialization

Areas of specialization for this office include: Agriculture (including farms and ranches), Construction, Manufacturing, Restaurants, Water Districts, Wholesale and Retail Business.

What Makes Us Unique

As part of INSURICA, our clients enjoy the same resources typically only reserved for those of a national broker — all delivered by active members of our local community.


We are proud of our colleagues long-term commitment to civic leadership within the Porterville area through their involvement in:

  • Chamber of Commerce
  • Leadership Porterville
  • Porterville Fair



CA License #: 0D44424