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About Public Security LLC

A private security, executive protection, investigation and Intelligence firm licensed to provide services in Maryland and New York. It is also a registered business in the Commonwealth of Virginia and Pennsylvania. It consists of 65 employees. Staff consists of a Doctor, former Federal Agents, former Intelligence Officers, Military Veterans, Police and security professionals. Staff are at a proficient level with the use of an assortment of assault rifles, shotguns, sniper rifles handguns, ASP baton, chemical irritant and hand to hand combat for the performance of security protective duties. 

Federal Critical Infrastructure Sector as a provider under the

Emergency Services Sector as defined by the U.S. Cybersecurity and Infrastructure Security Agency (CISA)

Some Public Security LLC services and accomplishments

COVID-19 Coronavirus Pandemic

 Secured the 5th largest non-profit charity run in the United States 

(Chesapeake Bay Bridge Run 2014-16).  

Provided threat assessments for events and other clients. 

Provides protection for other large scale events for the Maryland Chapter of the MS Society and 

Susan G. Komen. 

 Provides security protection to housing communities in high crime areas with a positive outcomes. 

Conducts numerous legal process services and defendant skip tracing for law firms. 

Provided heavily armed private security protection to national infrastructure with 

positive results and no incidents. 

Responded to the Baltimore riots of 2015 and conducted protective escorts in the hostile areas of the city. 

 political investigations and candidate research. 

Provides executive protection and consultation regarding political campaigns and security measures to Elected Officials (including a U.S. Congressman) 

Acted as a neutral negotiator and dispute resolution advisor between competing 

political campaigns with strict confidentiality. 

Coordinated and provided pro bono protection for victims of crimes and elders in the community. 

 Remains on call to deploy protective security teams to war zones and conflict zones. 

Maintains active passports, training qualifications and vaccinations of all security personnel. 

Provided armed security escort for extreme risk U.S. Government cargo. 

Provides firearms instruction to citizens in order to obtain their pistol license. 

Conducted studies on national security issues pertaining to terrorism and foreign threats and conflicts.

 Monitors open source intelligence regarding world conflicts, 

foreign intelligence and military strengths of nations. 

Formulates threat assessments and hypothesis of future outcomes of conflicts.

Fire Guard / Fire Watch services

Provided pro bono protection for crime victims and elderly persons in the local community and confidential executive protection to high risk clients in need of protection. 

Meet Some Of Our Staff

Barry Donadio


Public Security LLC

Former U.S. Secret Service

The White House

Dr. Michael J. Ward

Medical Director

 Public Security LLC

Recognized as Top Doctor 

2009, 2011 and 2018

Robert E. Donadio

General Counsel 

Former Assistant States Attorney for  Baltimore County 


Employee of the year 2018

Lori (Cooper) Shourds

Private Detective Sergeant

Digital Forensics Specialist

Employee of the year 2019

Lilliana Pulvirenti

Private Detective Corporal

Foreign Affairs

Rising Star 2020

Jon Pease

Physical Security Specialist

Police Liaison