Having more than 20 years’ experience designing large and small projects across the U.S. and around the world, GTP provides the services of a large firm but with the hands-on approach and the responsiveness of a small firm. 

Over 90% of our business is repeat clients. We have the engineering expertise to provide you the type of service that turns our first project with you into a lasting relationship

Mechanical Engineering

GTP is a full-service mechanical engineering firm with technical expertise in the design of HVAC and plumbing systems. Our portfolio is incredibly diverse, with projects in both new construction and renovation of office buildings, churches, commercial, military facilities, and fueling facilities both across the United States and throughout the world. We design commercial and government HVAC and plumbing systems with an emphasis on energy efficiency and provide expert reports on energy modeling and LCC analysis. Whatever your need, we have the in-house expertise to provide technical excellence.

Electrical Engineering

GTP’s electrical engineering team has over twenty years of experience in the design of commercial and DOD power systems. Our vast experience makes us experts at all aspects of a project, including the design of lighting, communications and fire alarm systems, generation of arc-flash, fault current and breaker coordination studies, and design of PLC-based controls systems. We provide site investigation and construction validation services and many of our engineers have LEED certification, providing energy reducing options in all designs.

Petroleum Engineering and Lubricants (POL)

GTP has completed hundreds of individual CONUS and OCONUS POL engineering projects. Our experts provide design team project management, engineering studies, inspection reports, fully designed plans and specifications, and post construction services along with a variety of other engineering and consulting services related to POL facilities. GTP is a prime NAVFAC and AFCEC contactor. Our in-house team has certified API 570 and 653 inspectors for any project.


GTP is a certified commissioning firm registered with the ACG and is committed to maintaining the most up-to-date training and education of our CxA certified engineers. Our commissioning agents provide crucial support for projects, ensuring that every project is conceived, designed, and installed to meet or exceed building requirements and client operational needs. From the design phase through construction and into the warranty period, our goal is always to find cost effective means for increasing the performance efficiency and safety of buildings, both in new construction and existing buildings.

Fire Protection & Alarm Engineering

GTP has in-house experts in the planning and design of solutions for safeguarding life and property against fire. Our team of fire protection, electrical, and plumbing engineers work together to design seamless fire and life safety, alarm, sprinkler and emergency systems focused on the prevention, detection, and suppression of fire and smoke in buildings. From government offices to industrial facilities, our subject matter experts have a diverse portfolio of experience of meeting and exceeding fire safety codes and regulations.

Sustainability Consulting

GTP implements sustainable design in all current projects whether it is a registered U.S. Green Building Council project, a small renovation, or new construction project with a limited budget. Several of our engineers hold LEED certifications and our company has successfully completed many projects that received LEED certification. GTP has expanded our sustainable resources by certifying our firm as an AABC Commissioning Certified provider.

Modeling and Drafting

GTP has the in-house capacity to provide highly detailed drawings and Building Information Modeling (BIM) solutions for designers and contractors. Our experts are trained in the most current software to provide detailed drawings for your project. As a stand-alone service or as part of a complete design project, our team produces precise and cost-effective designs.

SCCS & Arc Flash Studies

GTP Consulting Engineers provides high-quality short circuit, breaker coordination, and arc flash hazard assessment studies. We have extensive experience with both new construction projects as well as existing facility assessments and understand the different needs of each type of project. With both project types, responsiveness, attention to detail, and engineering excellence are key to a successful project.