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Business Details
48 Years
experience
Your Trusted Insurance Partner in Stockton, CA
Since 1978, Sanguinetti & Co. Insurance Brokers & Co. Insurance Brokers, Mark Twain Insurance Services has been dedicated to providing comprehensive insurance solutions tailored to the unique needs of individuals and businesses across California. As a locally owned and operated independent agency, we leverage decades of industry experience and partnerships with top-rated carriers like Nationwide, Liberty Mutual, and Progressive to deliver personalized coverage options. Our team of knowledgeable professionals specializes in navigating the complexities of insurance markets to identify policies that align precisely with client requirements, whether for commercial property, auto fleets, farm operations, or personal health coverage.

We prioritize transparency in our quoting process, actively shopping competitive rates while maintaining a focus on long-term client relationships built on trust and accountability. Our commitment to community engagement is reflected in our deep-rooted presence across Stockton, Angels Camp, and surrounding regions, where we consistently demonstrate expertise through customized risk management strategies. By maintaining strong ties with both local and national insurance providers, we ensure access to innovative products that address evolving client needs while upholding the highest standards of professional integrity.
Services
Commercial Auto Insurance Personal Lines Insurance Surety Bonds Farm & Crop Insurance Life Insurance Health Insurance Workers Compensation Business Owners Policy Commercial Property Insurance Disability Insurance
Details
  • Year established: 1978
Highlights and features
  • We have over 45 years of experience in the insurance industry
  • Our team shops the market to find the lowest rates for your needs
  • We offer personalized service tailored to individual and business requirements
  • We maintain strong ties with the local community
  • We provide access to multiple insurance providers for comprehensive coverage options
What people say
Accommodating, professional, helpful Strong ties with the community Flexible and in-touch Highly recommended Long-time customers
Services
Commercial Auto Insurance
Commercial Auto Insurance protects business vehicles against accidents, theft, and liability claims. This coverage extends to company-owned cars, trucks, and specialized equipment used for business operations. Our policies include liability protection, collision coverage, and comprehensive plans tailored to fleet sizes and industry-specific risks.
Farm & Crop Insurance
Farm & Crop Insurance safeguards agricultural operations against yield losses, equipment damage, and liability risks. Coverage includes crop insurance, livestock protection, farm equipment policies, and liability coverage for farming operations. We offer customized plans addressing weather-related losses, market fluctuations, and property damage specific to California's agricultural sector.
Surety Bonds
Surety Bonds provide financial assurance for contractual obligations, commonly required in construction and government projects. Our services include bid bonds, performance bonds, and payment bonds that protect all parties involved. We assist businesses in obtaining necessary bonds while ensuring compliance with state and federal regulations.
Health Insurance
Health Insurance solutions cover medical expenses for individuals and businesses, including hospitalization, prescriptions, and preventive care. We offer group plans for employers and individual policies with options for dental, vision, and supplemental coverage. Our advisors help clients navigate ACA-compliant plans and Medicare supplement options.
Business Owners Policy
Business Owners Policy combines essential coverages into a comprehensive package for small to mid-sized businesses. This includes property insurance, liability protection, and business interruption coverage tailored to specific industries. We customize BOPs to address risks in sectors like retail, professional services, and hospitality.
Questions
What types of insurance do you offer?
We provide commercial insurance (auto, property, BOP), personal lines (auto, home, health), farm/crop coverage, life insurance, surety bonds, and workers' compensation policies.
How can you help me find affordable coverage?
As an independent agency, we compare rates from multiple carriers like Nationwide and Liberty Mutual to find cost-effective solutions tailored to your specific needs.
Do you serve businesses outside California?
While our offices are in California, we provide coverage solutions for businesses operating in Northern and Central California regions.
What sets you apart from other agencies?
With 45+ years of local experience, we combine personalized service with access to multiple carriers, offering unbiased recommendations focused on your long-term protection needs.
How do I file a claim?
Contact our Stockton office at 209-954-1000 during business hours or use your insurer's online portal for after-hours emergencies to initiate the claims process.