
Private Investigators in the Northern CA Region
Investigating with Integrity
Our team of investigators provides a wide range of services with an unwavering commitment to prioritizing our clients. Every member of our investigative team demonstrates a sincere dedication to you and your case, driven by a strong desire to achieve the best possible outcomes. We offer an extensive suite of services while maintaining affordability for our clients, delivering a personalized experience marked by genuine care and concern. Throughout every step of the process, our clients remain our foremost priority.

Licensed / Discreet / Experienced
Investigation Services
Criminal & Civil Investigations
Our comprehensive range of services proves invaluable in various criminal investigations. We can provide support in tasks such as evidence collection, witness interviews, person location, surveillance, discovery, document retrieval, and crime scene mapping.

Background Checks
Background checks serve multiple purposes, from pre-employment screening and tenant assessments to childcare provider checks and public official selection. Contact us to explore how our customizable background check services can meet your specific requirements and budgets.

Surveillance
Our Surveillance services are conducted with the utmost discretion and professionalism, employing advance techniques and technology to gather crucial information. Whether you need surveillance for legal or personal purposes, our experienced team is dedicated to providing you with accurate and reliable results.

Notary Public
Our team offers a range of professional notary services to meet your specific needs. Whether you require notarization for real estate transactions, wills, powers of attoney, or other legal documents, our experienced notaries are prepared to assist you at a location of your convenience, ensuring a smooth and efficient process.
CA Commission 2468437

Aerial Drone
Our drone services provide high-quality aerial photography and videography for applications. We capture stunning images of properties for real estate listings, document crime scenes and traffic accident scenes for investigative purposes, and create detailed maps for surveying and planning. Whether you need visuals marketing, analysis, or documentation, our professional drone services deliver exceptional."

Our Expertise

Sigma Investigations is committed to delivering innovative investigative solutions tailored to meet diverse needs. With over 25 years of military, law Enforcement, and private investigation experience, our mission is to provide reliable, discreet, and professional investigative services. We leverage our extensive expertise to ensure thorough and effective results for our clients. Trust us to handle your investigative needs with the utmost professionalism and dedication.
We believe in utilizing advanced techniques and ethical practices to deliver trustworthy investigative solutions. Let us be your trusted partner in navigating the world of private investigations, helping you obtain the information you need with confidence.
Why Sigma Investigations
Advantages of Choosing Us
Customized Investigative Solutions
Professional and Ethical Practices
Experience and knowledge combined.

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Let's Discuss Your Investigation Needs