About Us

Our Story

Goodhead was founded to provide the built environment with something we felt was missing:
support for design, engineering, and ownership grounded in integrity, innovation, and excellence.

Inspired by the idea of bringing integrity, innovation, and excellence to the design and owner communities, Simon Goodhead founded Goodhead Consulting Engineers (Goodhead) in March 2020. As he shared his vision, it strongly resonated with Christy Theisen. She joined the firm in January 2022 and, two years later, stepped into the role of President, guiding the company’s daily operations and growth.  
Today, Goodhead is a small, female-owned engineering company specializing in creating innovative design solutions that address fire and life safety requirements in building and fire codes. Our clients include architects, general contractors, and owners, with projects ranging from the biggest and best to the smallest and most complex.
Unlike traditional fire code consultants, we do more than interpret what the code requires. Our role is to support the design vision by providing solutions that meet code intent without limiting creativity or adding unnecessary costs. This approach adds value for our clients and owners by aligning compliance with design excellence. Our team carries our founding ideals into every project, delivering superior technical expertise and attentive client service. We have supported new construction, adaptive reuse, tenant improvements, and historic renovations across a wide variety of sectors.

Industry Memberships:

Society of Fire Protection Engineers (SFPE) | National and Local Chapters
National Fire Protection Association (NFPA) 
International Code Council (ICC) | National and Local Chapters
American Council of Engineering Companies (ACEC) of Georgia

Our Leadership

Christy Theisen

President and Principal Engineer

Simon Goodhead

Principal Engineer

The Principal Engineers at Goodhead are trained Fire Protection Engineers and hold Master’s degrees in Business Administration. Their combined technical expertise and business insight provide a well-rounded approach to projects and client relationships.
With experience across the United States and internationally, our team has contributed to advanced performance-based design solutions, high-occupancy buildings, and facilities with complex chemical and hazard challenges.
Christy, based in Las Vegas, NV, and Simon, based in Atlanta, GA, bring extensive technical knowledge and hands-on experience. Their work spans large-scale tech companies, leading universities, major airports, manufacturing facilities, rocketry, lithium-ion battery production, biosafety laboratories (including BSL-4), and real estate investment trusts.

Community Involvement

As part of the Goodhead commitment to excellence, staff volunteer regularly within the community and work to extend the knowledge of the fire protection industry

Our engineers have been involved with SFPE Foundation, the Greater Atlanta Chapter of SFPE, and UL Research Institutes Xplorlabs. The partnership with Cherokee County schools has allowed us to volunteer and speak with 8th grade stem classes. Discussing Fire Protection Engineering and various Fire Protection Engineering career paths occur during these classroom visits.  
Our engineers also are involved with robotics programs across Clark County School District. Introducing elementary and middle schoolers to Fire Protection Engineering and how the engineering process they are experiencing in the robotics programs applies to real-world applications. 
Beyond the classroom experiences detailed above, our engineers have also been judges for events, such as KSU Senior Design Expo and Elementary and Middle School Robotics competitions, and provided educational seminars to fire departments, architects, and engineering firms nationwide.  

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