Detectives in Green Bay, WI

Comprehensive list of private detective agencies and investigators servicing Green Bay, WI.

Business Listings

Ensuring your success is the cornerstone of every service and product provided by API. Since 1975, API has been delivering a range of investigative and consulting services to assist strengthen the foundation of our customers' organizations. Whether you need assistance in investigating potential wrongdoings, enhancing your security, improving hiring practices, or general consulting, the experienced


We are Northeastern Wisconsin's biggest full-service private security and investigations company. Founded in January 1993 in Green Bay, we serve business, government, medical institutions, the legal community and individuals. We accept all major credit cards. We opened our Wausau - area office in 2003.


Our complete service, professional detective agency is bonded, licensed and insured and designed to service customers from the private sector and business community alike. We provide personalized service, tailored to our customers' specific requirements. Your inquiries will be held with complete confidentiality and sensitivity.



Need legal papers served in Milwaukee, Wisconsin or surrounding areas? We will serve your papers for you. Welcome to PI Investigations,a Wisconsin licensed Private Detective agency committed to searching and gathering accurate facts and information for attorneys, corporations, paralegals, public defenders, private citizens. Our customers rate us #1 try our services to find out why.


Hungerford Investigative Services is dedicated to delivering discreet investigative services with the highest standards of confidentiality. Hungerford Investigative Services is dedicated to the best levels of professional integrity. Our work is thorough, detailed and done in the most timely and efficient manner possible.


The mission of Special Operations Detective Agency SODA is to supply security, investigative and process serving solutions to all area businesses as well as to the public within the guidelines of the Wisconsin State Statutes. Provide affordable and quality alternatives in security for the public. Work together with all local law enforcement agencies.


Winnebagoland Security Services is an founded business under new ownership. WSS appreciates the value of protecting business assets and employees. We supply process serving, security guard, background checks and investigative services. We are dedicated to delivering our customers with focused, responsive service with an expert touch.


WSI considers each and every assignment a signature of trust. As career private investigators, we give each case our full attention. Our customers can expect their information to be handled with the utmost confidentiality. While WSI supplies services for insurance firms and law firms throughout the US, WSI services private individuals.