290 security guard and private security companies in Wisconsin, built from official state licensing data. Compare by city and request free quotes.
Wisconsin licenses security and detective agencies through the Department of Safety and Professional Services (DSPS) under a single Private Detective/Security Agency credential. Milwaukee anchors the market with manufacturing, a working port and major venues, alongside state government and the university in Madison and the paper-and-manufacturing Fox Valley around Appleton and Green Bay.
Capital: Madison · Midwest region.
New to hiring here? Read our guide to Wisconsin security licensing — who regulates it, armed-guard and firearm rules, and how to verify a license yourself.
Browse the companies in each city across the state.
Hire by service type in Milwaukee and the state's main cities.
Ranked by license status, profile views and recommendations.
290 companies
A.P.E. Protection Group LLC
Accent Investigations
Advanced Private Investigations Inc
Advanced Private Police LLC
Advanced Surveillance Group Inc
Affirmative Action Invest
Alan Ferguson Agency
All Hazards Emergency Planning & Consulting L.L.C.
All Your Needs Investigations LLC
Alliance Security Protection LLC
Altstadt & Associates LLC
Alysa Kingsawan LLC, DBA MIDWEST ELITE PROTECTION LLC
Appleton Private Detective Agency LLC
Ashford Security Services
Asset Protection Services LLC
Assured Private Investigations LLC
Asymmetric Applications Group, Inc.
Attoe Watson & Co Inc
AV Fire Analysis and Technical Consulting
B and M Security Holdings LLC
Badger Land Detective Agency
Badger State Investigative Services LLC
Barber Investigations LLC
BATTLE TESTED SECURITY LLC
Bay Investigation & Litigation Services Inc
Beau Private Investigator
Behavioral Analysis and Security Consultants LLC
Best Guard Services LLC
Black Knight Patrol LLC
BLUE LINE INVESTIGATIONS & SECURITY SOLUTIONS LLC
Bowie Security LLC
Bredlau Enterprises Inc
BRIGHT LINE INVESTIGATIONS LLC
Butler Investigations
Byerson Specialized Protection Services LLC
Caliber Investigations LLC
Capitoline Business Intelligence INC
Central Protective Services LLC
Central WI Investigations
Centurion Investigations, Inc.
Christopher Forkner Investigations, LLC
Citywide Public Safety LLC
CK Investigations LLC
Showing the top 48 of 290 companies in Wisconsin. Browse by city above, or the full national directory.
Looking for private security in Wisconsin? Get quotes from licensed companies, at no cost.