About Us


This is Our Story

Sergio Reyes founded Professional Security Services, Inc. (ProTech Security) in June of 1994 to provide personalized and professional security services to the San Francisco Bay Area commercial market.  ProTech Security has grown to become one of the largest regional providers of union affiliated security services in the San Francisco Bay Area. With branch offices in San Francisco and Oakland ProTech Security is ready to provide professional security staffing anywhere in the San Francisco Bay Area. ProTech Security currently provides and manages security programs for many prestige’s buildings and leading property management companies all over the San Francisco Bay Area.

ProTech Security has a very experienced operations staff that includes our Portfolio Managers, Account Managers, Scheduling Manager, Human Resources Manager, Training and Development Manager and Benefits Manger and 24-hour Field Supervision team. ProTech Security’s management team has extensive industry experience and is ready and capable of handling any situation.


Professional Technical Security Services, Inc. (ProTech Security) uses the 5 stage Deming Cycle as a business tool.

PLAN an improvement. The goal at this stage is decide what needs to be done and how it best can be done. Achieve this goal by reviewing and studying the current work process and available data. This stage really involves examining the current method or the problem area.
DO the planned activity. Implement the improvement or problem-solving plan by actually doing it. This is the implementation stage during which the plan is actually tried out in the operation. The people responsible need to be trained and equipped with the resources necessary to complete the task. This stage itself may involve a mini PDCA cycle as the problems of implementation are discovered and resolved and we begin to see if the implementation of the plan is providing results. Resources and skills required include:

CHECK the results. The new implemented solution is evaluated to see whether it has resulted in the expected performance improvement. Analyze the new data available and measure the results to see if the implementation of the plan is giving the results that it should. Change Management methodologies and tools at this stage include using:

ACT on the results. If the implementation was successful standardize and documented the work and new processes. If the change were not successful, learn what we can from the trial, adjust where necessary to overcome problems, and formalize the new knowledge before starting the PDCA cycle over again. In starting over again we take any corrective action that is required; we lock in the positive and good outcomes and then we return to the planning stage and repeat again as necessary. Documentation may include:

Repeat the Deming Cycle. Continue the cycle again. Plan and implement further improvements. Even better though, as we continue with the Deming Cycle we have the benefit of having new data and learned experiences from the previous cycles. We are well positioned to continue to carry out these process improvement activities and achieve ongoing results. Best of all you will not be disappointed when using this change model for successful organizational change.

Important Deming Cycle Key Points
Although the 'PDCA cycle' was originally developed from within a manufacturing framework, it applies to all business types. It is particularly useful for service providers for reviewing customer and supplier relationships and the inputs and outputs to those relationships and processes.