About Us

North American Security is one of the leading security firms of its kind, with seasoned staff whose cumulative experience and expertise guarantees thorough, detailed and comprehensive reporting to its clients. As former high-ranking Los Angeles Police Department command staff officers who have spent decades overseeing and managing field security operations, the principals understand what it takes to ensure the security and safety of its clients.

NASI is also a full-service security company capable of handling everything from electronic surveillance and alarm installations, executive protection, mobile responses, and security consultations to ensure the highest level of protection to its clients.

Chief Executive Officer

Mr. Art Lopez spent 34 Years in law enforcement, retiring from the Oxnard Police Department as the Chief of Police. Mr. Lopez has a broad base of managerial experience and progressive leadership in all major areas of modern law enforcement including uniformed patrol, narcotics, vice, gang, detectives, traffic enforcement, training, community relations, personnel and labor relations. In order to address the myriad of issues facing modern day law enforcement, Mr. Lopez developed a total community involvement philosophy which anticipated the needs of a rapidly changing culturally diverse community. Mr. Lopez was recognized for his leadership ability by the Governor of California, who appointed him as a POST Commissioner in 2000.

Chief Lopez retired from the Los Angeles Police Department with nearly 28 years of experience as a Deputy Chief. Mr. Lopez was highly successful in maintaining positive officer morale and responsive community relations during difficult periods. His success is based on excellent communications and frequent contact with community-based organizations, civic leaders, public officials and department personnel. Mr. Lopez was one of three finalists for the 2002 Chief of Police selection process in the City of Los Angeles.

It was a natural transition for Chief Lopez to move to the private sector and become involved in the security industry. He and his business partner retired LAPD Captain Ken Hillman, purchased North American Security, Inc. (NAS) in 2005. NAS specializes in providing security for governmental agencies including the Los Angeles City of Los Angles, County of Los Angeles, the Los Angeles Department of Water and Power and the United States Federal Government. Mr. Lopez is the CEO of NAS and during his tenure, the company has grown from 68 full time security officers to well over 500 security officers. Mr. Lopez is active in the community and is currently serving as mayoral appointee to the City of Los Angeles Workforce Investment Board.


Ken Hillman is the Vice-President and co-owner of North American Security (NAS). Prior to purchasing this company with his partner Art Lopez, Ken was a commanding officer with the Los Angeles Police Department (LAPD), where he worked nearly 30-years prior to his retirement in 2005. During his career with the LAPD, Ken worked a variety of assignments including patrol, gangs, narcotics, detectives, administrative and traffic. Ken commanded detective operations at Central and Newton Areas, prior to his promotion to Captain of Police. Ken was the Commanding Officer at Pacific and West Los Angeles Areas. Pacific Area encompassed the Los Angeles International Airport, where Ken was instrumental in implementing strategic plans for safeguarding travelers against terrorism. In fact, Ken was the LAPD’s primary quest speaker on a television special entitled “L.A.’s War on Terrorism,” which won an Emmy on television networks.

Ken Hillman has a Bachelor of Science Degree from the Union Institute of Cincinnati, Ohio; and a Graduate Degree in Negotiation and Conflict Management from California State University Dominguez Hills, Carson, California. He wrote his Master’s Thesis on “Shelter-Resistant Homeless, Viable Solutions to a Complex Problem.” Several of his writing have been featured in the Los Angeles Times newspaper, and he authored the LAPD’s “Strategies for the Enforcement of Public Nuisance Crimes.” Since his retirement and subsequent business partnership with Art Lopez, their business has grown from 1.8 million in annual security contracts to over 15 million in less than five-years. Today, NAS employs over 500 full-time and several part time employees, and Ken and Art own their facility near downtown Los Angeles.

Director Of Operations

Isidro Lopez is the Director of Operations for North American Security, Inc., a security service firm headquartered in Los Angeles with 500+ employees. Isidro Lopez supervises payroll, invoicing and human resources operations for the company. Isidro Lopez is also the liaison for the two largest accounts, with gross revenue in excess of 9 million a year.

Isidro Lopez graduated from the University of California at Santa Barbara with a major in Political Science. He previously worked in the insurance industry, where he completed two separate degrees of distinction, which were a LPCS (Legal Principles Claim Specialist) and a CCLA (Casualty Claim Law Associate).

contact us

550 E. Carson Plaza Drive
Suite 222
Carson, CA 90746
Telephone: (323) 634-1911 - FAX: (323) 634-9111

Visit our sister site at nasi-pi.com