Business Details
50+ Years
experience
Your Trusted Partner for Private Investigation Services
National Business Investigations has been a family-owned and operated private investigation firm since 1967. Our expertise spans corporate, legal, insurance, and personal investigations, with a focus on asset discovery, due diligence, surveillance, and fraud detection. We maintain a commitment to ethical standards and professional integrity, holding licenses in multiple states and affiliations with industry organizations.Our team combines decades of experience with advanced investigative techniques to deliver reliable results. Clients trust us for our discretion, technical capabilities, and personalized service tailored to complex investigative needs.
Services
Corporate Investigations
Legal Investigations
Surveillance Services
Asset Searches
Background Checks
Details
- Year established: 1967
Highlights and features
- We offer over 50 years of investigative experience with a family-owned commitment to integrity
- Our team includes certified professionals with law enforcement and cyber investigation expertise
- We maintain strategic partnerships for nationwide investigative coverage
- We provide customized solutions for corporate, legal, and insurance clients
- Our no-risk guarantee ensures satisfaction with every investigation
What people say
Perfect service and communication
Outstanding service
Great customer Service
Highly recommend
Professional and friendly
Services
Corporate Investigations
Our corporate investigations uncover internal threats and protect business interests through discreet surveillance and forensic analysis. We specialize in executive background checks, industrial espionage detection, and intellectual property protection. Clients benefit from our strategic counter-espionage planning and evidence collection expertise.
Legal Investigations
We provide comprehensive legal investigation services including witness locating, evidence analysis, and financial record investigations. Our team supports attorneys with civil litigation preparation and cybercrime forensics. Clients receive detailed reports admissible in court proceedings.
Surveillance Services
Our surveillance operations use advanced technology for evidence collection in workers' compensation fraud and domestic cases. We employ static and mobile surveillance techniques with certified investigators. Clients receive high-quality video documentation for legal proceedings.
Asset Searches
We conduct thorough asset discovery investigations for pre-litigation and post-judgment cases. Our team locates hidden assets and financial resources across multiple jurisdictions. Clients receive detailed reports to support debt collection and legal settlements.
Background Checks
Our comprehensive background investigations include criminal record checks, employment verification, and professional license validation. We specialize in executive-level screenings for corporate clients. Clients receive detailed reports to support hiring decisions.
People
Michael D Julian
President
Third-generation investigator with 30+ years experience. Certified Professional Investigator and former CALI president. Specializes in surveillance operations and corporate security. Holds reserve law enforcement certification.
Ron Julian
Founder
Established NBI in 1967 after law enforcement career. Pioneered corporate investigation services in California. Recognized industry leader until passing in 1997. Legacy continues through family-operated business model.
Questions
What types of investigations do you specialize in?
We specialize in corporate investigations, legal support, insurance fraud detection, surveillance operations, and executive background checks.
How long has your company been in business?
National Business Investigations has operated continuously since 1967, making us one of the oldest family-owned firms in the industry.
Do you operate outside California?
We provide services in California, Colorado, Nevada, Texas, and Florida with strategic partners covering all 50 states.
What sets your firm apart from competitors?
Our combination of third-generation expertise, certified investigators, and technology-driven methods delivers superior results with ethical standards.
How do you ensure investigation quality?
We maintain quality through certified professionals, advanced surveillance technology, and rigorous evidence collection protocols developed over 50+ years.
Can you handle urgent investigations?
While we don't offer emergency services, our team prioritizes time-sensitive cases with rapid deployment capabilities across our service areas.
Reviews (3)
Diedre Quenell
Aug 20, 2019
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NBI is dedicated to providing excellent service. Are you looking for Legal, Insurance or Corporate Investigations, Surrveillance, Pre-Employment Checks, Background Investigations, Locate Services or Asset Searches? NBI is a family owned and operated firm that has been in business for over 51 years. Call today and let us know how we can assist you with your investigative needs.
Rhonda Warner
May 26, 2015
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The Murrieta Chamber of Commerce has been using National Business Investigations for years and there is a reason why. It's because they are the best! We help to run a three day Irish Music Festival in our City and always trust this company with all of our security needs. Their staff is fully in charge of making sure our event runs smoothly for all staff, volunteers and the public. The attendance this year was 8,000 people and not one problem. They are professional and friendly-always! But can flex the muscle if ever needed. We highly recommend National Business Investigations! Rhonda Warner VP Operations Murrieta Chamber of Commerce
Lisa Pons
Dec 10, 2014
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NBI is a great place to work. We care about our clients and the service they receive and take pride in doing the best job possible. Give us a call and let's discuss the excellent service we can provide for you and your company!
