Sean A. Ahrens, M.A., CPP, FSyI, CSC, BSCP, CHPA

Sean Ahrens, M.A., CPP, FSyI, CSC, BSCP, CHPA is a security consultant in Chicago, Illinois with more than 20 years of leadership in premises liability, workplace violence prevention, security design and data driven security strategy. Sean Ahrens works with Affiliated Engineers, Inc. and is known for the physical, technological and operational security controls he has developed for some of the most iconic building projects in the United States and around the world.

Over his career Sean has led threat, risk, vulnerability, loss and shrinkage audits for owners, developers and organizations that need a clear picture of where they are exposed and what to do about it. His work blends engineering level detail with a practical understanding of how people, buildings and technology behave on an ordinary day and on the worst day.

What Sean Ahrens focuses on

• Premises liability and expert witness work. Security reviews and professional opinions for attorneys and property owners on whether reasonable security measures were in place, what the known risks were and how an incident could have been prevented.
• Security design and technology. Surveillance, control center design, access control, door hardware, intrusion detection, PSIM, convergence and IP systems planned as one working system instead of a collection of separate products.
• Risk, threat and vulnerability assessments. Physical security assessments, security master planning, organizational review, benchmarking and determined aggressor testing.
• Workplace violence prevention. Program design, policy review and de escalation training that prepares staff to recognize warning signs and respond with confidence.
• Higher threat environments. Force protection, pedestrian and vehicle screening technologies and planning for chemical, biological, radiological and nuclear threats.

Notable work

In 2014 Sean Ahrens received two awards for security innovation for his contributions to the Qatar Petroleum Headquarters project in Doha, Qatar, a campus of roughly 22 million square feet. Projects at that scale demand security that is designed in from the start, coordinated with architects and engineers, and built to work for decades.

His security programs have supported major commercial, institutional and mixed use projects both domestically and internationally, including properties where a visible security failure would carry real reputational and financial cost.

How Sean Ahrens approaches a security program

Start with risk, not products

Many security programs grow one camera or one card reader at a time, often after an incident. Sean Ahrens starts the other way around. He looks at the threats a site realistically faces, the people and assets that matter most and the consequences of a failure. Only then does he recommend controls, so every dollar spent ties back to a real risk.

Design security into the building

On new construction and major renovations, security works best when it is coordinated with architects, engineers and owners from the earliest design phases. That is how standoff distances, vehicle barriers, lobby layouts, door hardware and cable pathways end up working together instead of competing for space. This integrated approach is a big part of why his work has been recognized on large, complex campuses.

Build programs people will actually follow

Technology only works when policies, procedures and training support it. Sean Ahrens pays close attention to security operations, post orders, staffing models and the daily habits of employees and visitors. A plan that looks perfect on paper but frustrates the people using the building will not hold up for long.

Verify, test and benchmark

Strong programs are tested. Determined aggressor testing, third party verification and benchmarking against peer organizations show whether controls perform the way they were designed to perform. These reviews also give leadership clear evidence when it is time to ask for budget or change direction.

Communicate clearly with leadership

Executives, boards and legal teams need security findings they can understand and act on. Sean Ahrens translates technical detail into plain priorities, explaining what matters most, what it will cost and what happens if nothing changes.

Standards and thought leadership

Sean Ahrens was a founding member of the ASIS (American Society for Industrial Security) commission on guidelines and has contributed to a number of security guides and standards used across the profession.

He continues that work with the Council on Tall Buildings and Urban Habitat (CTBUH), where he authored a book that helps developers and owners select the right security controls for iconic properties. His ongoing thought leadership covers resilience, master planning, standards development, security operations, benchmarking and training.

Credentials at a glance

• M.A. degree
• CPP (Certified Protection Professional), the ASIS International board certification for security management professionals
• CSC (Certified Security Consultant) from the International Association of Professional Security Consultants (IAPSC)
• CHPA (Certified Healthcare Protection Administrator) from the International Association for Healthcare Security and Safety (IAHSS)
• FSyI, Fellow of the Security Institute
• BSCP designation
• More than 20 years of security and resilience leadership across design, operations and litigation support
• Two security innovation awards in 2014 for the Qatar Petroleum Headquarters project in Doha
• Founding member of the ASIS commission on guidelines
• Author of a CTBUH book on selecting security controls for tall and iconic buildings
• Professional competence in chemical, biological, radiological and nuclear threat planning

For property owners, attorneys and security leaders, this mix of board certification, standards work and real project delivery means Sean Ahrens can speak to what good security looks like in practice, not just in theory. His recommendations are grounded in recognized guidelines and tested on some of the most demanding projects in the world.

Speaking topics

Sean is available for conference sessions, association meetings and internal leadership briefings. Popular topics include:

• Security leadership and team building
• Security standards development and third party verification
• Risk assessment and risk management
• Workplace violence prevention and de escalation
• Security technology and systems design planning
• Physical security, force protection and determined aggressor testing

Who Sean works with

Commercial real estate owners and developers, corporate security teams, data centers, healthcare and pharmaceutical organizations, hospitality and resort properties, schools and universities, government agencies, financial institutions, museums and cultural properties, utilities, manufacturing and industrial sites, warehouses and distribution centers, law firms, houses of worship, residential properties and parking facilities.

Because his background spans design, operations and litigation support, Sean Ahrens can help at any stage of a project, from early planning on a new building to a review of an existing site after an incident.

Frequently asked questions

What does a premises liability security expert do?

A premises liability security expert reviews whether a property owner or manager took reasonable steps to protect people from foreseeable crime or violence. The work usually covers prior incidents in the area, the security measures that were in place, industry standards and guidelines, staffing and policies, and whether the incident was preventable. Sean Ahrens brings both design and standards experience to these reviews, which helps attorneys and owners understand what a reasonable security program should have looked like.

When should an organization bring in a security consultant?

The best time is early. Bringing in a consultant during planning or design costs far less than retrofitting cameras, access control or barriers after a building opens. Other common triggers include a new or renovated property, a recent incident or threat, an insurance or audit finding, a merger or new leadership team, or rising concern about workplace violence.

What happens during a security risk assessment?

A typical assessment starts with interviews and document review, followed by a site walk of the property during different times of day. The consultant looks at threats, vulnerabilities, existing controls and how people actually use the space. The result is a written report that ranks risks and recommends practical improvements, from policy and training changes to security technology upgrades. Sean Ahrens has led this kind of threat, risk and vulnerability analysis on projects of every size.

Does Sean work with projects outside Chicago?

Yes. Sean is based in Chicago, Illinois, and his project history includes work across the United States and internationally, including the award winning Qatar Petroleum Headquarters campus in Doha. Reach out with the location and scope of your project to discuss availability.

How do I contact Sean Ahrens?

Use the contact form on this page to send a message directly, call the phone number listed on his profile, or connect with him on LinkedIn. Include a short description of the property, the type of support you need and your timeline so he can respond with the right next step.

Working with Sean Ahrens

Most engagements start with a conversation about the property or organization, the current security program and any known concerns or claims. From there, Sean Ahrens recommends a clear scope, whether that is a full risk assessment, a security design review, a security master plan or expert witness support.

What to prepare before your first call

A little preparation makes the first conversation far more useful. Have a short description of the property or organization ready, along with its size, location and how it is used. Note any recent incidents, threats, audit findings or claims, and gather existing documents such as security plans, policies, floor plans or prior assessments if you have them. Finally, think about your timeline and budget range. With that information in hand, Sean Ahrens can quickly suggest the right type of engagement and the most practical next step.

To start a conversation, use the contact details on this page or connect with Sean Ahrens on LinkedIn. If you are comparing several consultants, you can also request proposals from vetted security consultants, browse workplace violence prevention consultants, or read our physical security assessment cost guide before you decide.