Detectives in Quincy, IL

Comprehensive list of private detective agencies and investigators servicing Quincy, IL.

Business Listings

The firm has grown in reputation and size to include three investigators and office team. Our firm provides our customers personal attention and professional results taking great pride in our product. We supply thorough, accurate, and timely reports. Our philosophy is to maintain integrity over all other considerations.


Incorporated in 1983 by President and founder, William M. Vala, ABLE DETECTIVE has been delivering private security and investigative solutions to the Central Illinois area for almost twenty years. We supply the finest-trained and uniformed security officers in the Midwest.


The home office in Springfield, Illinois, is strategically situated between St. Louis and Chicago. We have agents that serve all of Central Illinois to supply you with discreet and confidential investigative services. Company President Bill Clutter has over twenty five years knowledge as an investigator. Bill has gained a reputation for being one of the premiere private investigators in Illinois.



Aurico SM Investigations is a complete service investigations and security consulting company. Headquartered in Arlington Heights, Illinois, the Aurico SM Investigations team consists of experienced investigators trained to provide accurate, timely, dependable information and service. Our customers include major corporations, tiny businesses, law companies and individuals.


Protecting what is significant to you since 1957. What makes us better than all the others? For over fifty years we currently have had a firm of trained professional staff that really cares about each and every customer we serve. We trust that our services and experience are ideally fitted above all others for your facilities and premises.


Please update the address you have for us for proper postal delivery. Phone numbers have not changed. At Kellerman Investigations, you'll find our knowledgeable team is responsive and professional in answering any questions that you might have about legal document service. We address each of your concerns with prompt and courteous attention.


Graybeard Investigations provides a huge range of solutions for both individual and professional settings. Graybeard Investigations works largely in the western Illinois and eastern Iowa area, basing out of the Quad Cities Rock Island, IL; Moline, IL; Bettendorf, IA; and Davenport, IA.


To serve our clientele with the utmost efficiency and to accomplish your aims in an expedient manner. We will endeavor to create an expert relationship with each person or corporation we assist. Your security and peace of mind is our aim. We are in line for pricing through out our tri-state area. Confidentiality is our most important asset.