Service Partners

The Hellier Group is proud of our teaming partners - Imperia Engineering Partners, LLC, the Amerapex Corporation, and Technical Field Services.

About Imperia Engineering Partners LLC

Since 1986, Imperia Engineering Partners has provided electrical, mechanical, civil/structural, programmatic, material science, and chemical engineering services for its expanding customer base. Imperia’s areas of expertise include nuclear, fossil, renewable power, process engineering, facilities design, transmission and distribution.

Imperia is distinguished by its capability to leverage expertise across engineering disciplines and to partner with industry experts to provide innovative and cost-effective solutions to the current challenges facing the industry.

Headquartered in Central New Jersey, Imperia has served clients in over thirty states and is proud of the fact that they receive an overwhelming large percentage of their annual revenues from repeat clients who recognize the value-added services that Imperia provides to all its customers.

Imperia has chosen to keep a local dimension to better serve specific regional markets. With regional offices in Boston, Chicago, and Raleigh as well as additional distributed resources, Imperia is able to provide quick response to emerging issues.

About Amerapex Corporation


Mechanical Capital Projects

Piping fabrication & repairs
• Blinding & isolation
• Structural fabrication & repairs
• Valve replacements
• Coating repairs
• Civil services
• Hydro-testing
• Exchanger/Vessel services
• Anomaly digs
• Hydrocutting

Tank Terminal Services

• Routine maintenance
• Concrete ringwalls & foundation repairs
• API inspections
• Blinding
• Pipe repairs
• Structural repairs
• Shell repairs
• Hydro-testing
• Confined space entry teams
• Cleaning & environmental services
• Turn-key NDT & inspections
• Equipment return-to-service
• Blasting/coatings

Non Destructive Testing (NDT) and Asset Management services provided by Amerapex Corporation include inspection solutions specifically designed for the customer. Amerapex specializes in providing personnel with the proper training, experience and certification to assist with all your inspection and turnaround needs.

About Technical Field Services


Technical Field Services split frames machines are ideal for cold cutting pipe from 2.000" to 72.000" O.D. and up to 6.000" m.w.t. Technical Field Services split frame machines are easy to handle, set-up, operate and maintain during the tightest of schedules.


Technical Field Services offers our clients a complete division dedicated to on-site heat treating services. We provide solutions to our customers. We offer complete turn-key capabilities to equipment rental. Whether your project requires complete on site support or off site control and monitoring, we engineer a site specific heat treatment program to fit your needs.