Your Trusted Private Investigator in Sangamon County, IL

Are you looking for answers regarding a personal or business matter? Hire a local private investigator to ensure you get the information that you’re looking for. At Advanced Investigative Services, Inc, we offer a variety of investigations to individuals, businesses, and professionals in Sangamon County, Illinois, and throughout the surrounding areas. Founded by a retired state police captain in 1996, we employ professionals from across various local, state, and federal agencies with over 100 years of combined experience. Furthermore, our teams have access to local, national, and global databases to ensure the most up-to-date information for any case that we take. Whether you’re trying to catch a cheating spouse or screen new employees, trust that our staff is here to find the truth for you! Our private investigators can help with:

Attorney Services
Consulting
Workers’ Compensation
Video Surveillance
Undercover Operations
Pre-Employment Screening
Background Checks
Insurance Fraud
Embezzlement/Theft
Process Service
Pre-Marital Background
Covert and Overt Camera Installation
Missing Persons
Interviews/Statements
Product Liability
Pre-Trial Investigations
Crime Scene Investigations
Stalking

Private Investigators in Sangamon County, IL

Residents in the Sangamon County, Illinois, area know to contact the private detectives at Advanced Investigative Services, Inc for a reliable, confidential private investigator. Our trained and knowledgeable crews provide investigative services for individuals and businesses in the local community. Personal investigations include pre-marital background checks, civil suit and divorce investigations, missing person searches, and more. However, we can also perform investigations for your business, such as pre-employment screenings, background checks, workers’ comp claims, pre-trial investigations, process services, and more. We employ the help of experts across various fields to ensure that no detail goes unnoticed!

Our private investigators specialize in:

Video/Still Photography
Licensed Pilots
Licensed Investigators
Surveillance Technician
Accident Reconstructionist
Criminal Defense Detectives
Covert/Overt Corporate Investigators
Polygraph Examiner
Audit/Fraud Expert
Executive Protection Experts

We proudly provide investigative services for those in Sangamon County, Illinois, and throughout the surrounding communities. Our staff can set your property up with a surveillance system that offers 24/7 accessibility via the internet. We believe in thorough investigations that won’t break your bank. Call our staff to receive a free, no-obligation consultation of your case.

Executive Protection Services

Experienced and professional team
Surveillance operations and surveillance detection
Our Lead Protection Specialist has over 20 years of experience as a law enforcement officer and currently serves as a special agent for our military.
- Specializes in Protective Services
- Extensive experience in undercover operations, surveillance, and criminal investigations
- Protection experience with high-level executives and government officials
Our team’s training consists of:
Firearms
Defensive tactics
Surveillance
Driving tactics
Completed an elite training school in personal protection

Contact Your Local Private Investigator in Sangamon County, IL

Are you looking for a professional private investigator on behalf of your business or for a personal investigation? Advanced Investigative Services, Inc has been the leader in investigative services in St. Clair County, Illinois since 1996. We have a team of professional and experienced investigators with the right skillsets to handle any type of investigation. Whether you are in search of a missing person, want to run background checks on potential employees, or need video surveillance, Advanced Investigative Services, Inc can handle the job.