Team

Winning strategies that ensure your protection and success

It starts at the top...

ABC’s mission is to provide “Superior Security Service.” With this commitment in mind, ABC has assembled a managerial team that is professional and dedicated to success. Our managers are skilled and tested veterans who consistently meet the challenges presented in the changing world of security and loss prevention.

When partnering with ABC you have the full commitment of our executives and managers, who will help ensure that our security personnel and support staff provide the optimum level of service that you have come to expect from ABC Security Service, Inc.

Ana Chretien, President, Owner

Ms. Chretien has been at the helm of ABC serving as President and CEO since 1989. She attended UCLA where she centered her studies on business and accounting. By introducing professionalism and winning strategies she has steered her company in a direction that ensures both quality of service and financial strength. Her unique leadership ability is also recognized in the community where she and ABC have been honored as one of the top 25 minority-owned businesses in the East Bay Area, and one of the top 500 largest Hispanic owned businesses in the United States. Ms. Chretien is also respected for her unfailing commitment to the community having served on many local and state commissions and advisory committees. Email Ana Chretien

Ray Thrower, General Manager Emeritus, Consultant

Mr. Thrower is a 30+year veteran of ABC. He is a graduate of Laney College and has completed the P.O.S.T. certificated criminal justice training program. He has honed his management skills having served in almost all of ABC’s management positions. As a result he has command knowledge of the entire operation. Mr. Thrower also acts as the key liaison representative to governmental entities that require Homeland Security and MARSEC expertise. He has trained with world-class experts on Anti-Terrorism preparation and is well versed in the logistics involved in modern-day airport security. He is ABC‘s primary security advisor to federal, state and local law enforcement, and continues to be actively involved as an energetic participant in community business associations and local public coalitions.

Email Ray Thrower

Clinton Grant, Operations Manager

Mr. Grant came to ABC after attaining much of his supervisory and managerial expertise in the health care and gaming industries. He has been both a hospital service supervisor and the director of security for a gambling casino in Northern California. Mr. Grant has more than ten years of managerial experience at ABC. He is the manager who is directly responsible for ensuring that the operational elements of a client’s contract are carried out in accordance with agreed upon conditions. There is an old adage that says, “You can’t expect what you don’t inspect.” Most of Mr. Grant’s effort is centered on overseeing field supervisors, site training and inspection, as well as client interaction to ensure total customer satisfaction. Email Clinton Grant

Erica Cervantes, Schedule Manager

Ms. Ahumada is ABC’s Management Scheduler. She is responsible for maintaining control of the weekly schedule of nearly two hundred guards. This complex process is computer automated to ensure that properly trained personnel are assigned to specific work sites. Ms. Ahumada is very familiar with our employee-client pool. She has the unique skill and innate ability to match specific personnel with the special needs and requisites identified by our clients. Under Ms. Ahumada’s watchful eye you are assured of an efficient and timely response.

Email Erica Ahumada

Isiaka Hassan, Supervisor & Assistant Operations Manager

Mr. Hassan has been with ABC Security since Mid-2022. He has a strong background in security since he was a freedom fighter in his country of origin. Mr. Hassan graduated from the University of IIorin in Kwara, Nigeria with Engineering Degrees. Given his extensive background in responsible positions in Civil and Structural Engineering, he is well able to cultivate client relationships, be decisive, and solve complex problems.

Jewhara Mesmer, Executive Assistant, Contract & Billing Manager

Ms. Mesmer came to ABC Security in 2017. She has a strong work ethic and knowledge of security operations which has been a great help to the ABC team. Ms. Mesmer’s background in Security comes from her military service in her country of origin, and she has excellent computer skills as well. Ms. Mesmer’s Primary ongoing responsibility is as Assistant to the President of ABC, plus billing, overseeing contracts, and job performance analysis. She interacts with clients to ensure client satisfaction.

Communications Service Center

Our headquarters based 24/7 Communications Service Center is staffed with well-trained, experienced dispatchers who handle calls around the clock in a professional and efficient manner. Our Executive and Headquarters Management plus dedicated staff are on call 24/7 making them available to the dispatcher & our clients.

Our Friendly Back Office Staff

These are the fine employees who do payroll, accounts payable & receivable, billing plus other accounting & clerical work for ABC Security!

We Miss Her

This photo is confirmation of how much we miss our long-time Day Shift Dispatcher Gayle Tselentis (11/47 – 11/22).

ABC Security Service

PPO License # 6773

1840 Embarcadaro, #100
Oakland, CA 94606

Phone: 800-872-1666
Fax: 510-436-0826