Owner’s Technical Representative
In the event that you require additional engineering support for a project or investment decision, ATSI can provide technical support. ATSI will work as an extension of your team maximizing your efficiency and minimizing re-work, churn, and other inefficiencies that often increase costs and lengthen the project schedule. In this type of role, we lean on our core values to diligently provide engineering support.
Integrity
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Responsibility
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Respect
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Safety
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Experience
ATSI’s extensive experience in both FEED/EPC execution and supporting customers as an Owner’s Engineer gives us the unique understanding of how to provide the most value for the least cost to the owner.
Embedded Engineering Support
Working as an extension of your team, ATSI’s multidisciplinary staff of engineers will provide clear, unbiased support for the project.
Client Representation
ATSI serves as your trusted partner, translating your goals into technical execution while ensuring all project decisions reflect your best interests.
Project Oversight
ATSI provides project oversight to ensure that every phase, from design through commissioning, aligns with your technical, financial, and operational goals.
Project Management
As Owner’s Technical Representative we provide comprehensive project management that spans all phases, from front end engineering and detailed design to procurement, construction, and commissioning. Our team ensures that engineering deliverables meet performance and compliance standards, while actively managing schedules to keep milestones aligned with your strategic goals. We oversee construction activities with a sharp focus on quality, safety, and contractor accountability, ensuring that execution in the field reflects the intent of the design. Acting as your advocate, we integrate technical oversight, schedule control, and construction management to deliver a project that’s on time and on budget.
Engineering Review
At ATSI, our engineering review services are rooted in independent technical oversight to protect our clients’ interests. We perform comprehensive evaluations of design documents, specifications, and calculations, leveraging industry knowledge and multidisciplinary expertise to validate compliance with project requirements, industry codes, and regulatory standards. Our team identifies design risks, constructability challenges, and opportunities for optimization early in the process, helping to prevent costly changes during execution. Through clear, actionable feedback and close collaboration, ATSI ensures that engineering solutions are technically sound, strategically aligned, and built to perform.
Our other services
Front End Engineering and Design
ATSI provides value-added engineering during critical stages of development.
Process Optimization
Maintenance
As facilities age, maintenance projects are constant. ATSI utilizes our vast experience to engineer and design solutions to keep your facility running safely and efficiently.
Process Safety Management
ATSI can provide services to ensure your facility is operating safely and in compliance with applicable codes.
Expansion
Whether you are adding a production line, expanding your existing facility, or planning a new site, ATSI can assist throughout all phases, from concept to construction.
Industries We Serve

Renewable Energy

Specialty Chemical

Oil & Energy

Food & Beverage

Minerals, Metals, & Mining

Pulp & Paper
Also: Environmental Design, Water Treatment and Desalination, Power, Ceramics, Medical Devices
Find Out More
We would love to talk with you about your needs. Please call, email, or use the contact form to start the conversation. Thanks!
sales@atsi.com
140 John James Audubon Pkwy
Suite 103
Amherst, NY 14228
Tel. 716-691-9200
Fax. 716-691-7221












