Building Excellence Through Integrity and Innovation
Founded in 2001, Tetrad PJS is a leading management and engineering firm dedicated to delivering comprehensive Engineering, Procurement, and Construction (EPC) services. Our expertise spans a diverse range of fields, including architecture, project planning, construction management, financing, urban furniture, power facilities, and cutting-edge IT solutions.
At Tetrad, we pride ourselves on executing projects with precision, ensuring timely deliverables within realistic budgets. Our procurement management services prioritize independent equipment sourcing, adherence to stringent specifications, and competitive pricing, providing unmatched value to our clients.
Quality and trust form the foundation of everything we do. We manage and coordinate all aspects of project engineering, procurement, modular fabrication, and construction services in partnership with reputable engineering firms, ensuring seamless and efficient project execution.
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Our Services
At Tetrad, we offer a diverse range of services designed to meet the unique needs of our clients. Our EPC and EPCM services provide seamless integration of engineering, procurement, and construction phases, ensuring projects are executed efficiently and to the highest standards. With our construction project management expertise, we oversee every stage—from planning and cost estimation to on-site supervision and post-construction evaluation—focusing on safety, quality, and timely delivery. Additionally, we empower businesses with customized financing solutions, supporting growth, equipment acquisition, and operational needs through sustainable financial strategies. With Tetrad, you gain a trusted partner committed to excellence in every aspect of your project.

Project Management
Seamless Project Delivery from Concept to Completion
At Tetrad, our EPC and EPCM services integrate engineering, procurement, and construction to deliver efficient and high-quality projects. We ensure seamless coordination across all phases, tailored to meet client needs and industry standards.
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EPC & EPCM
Comprehensive Oversight for Successful Project Execution
Our construction project management services cover planning, budgeting, and on-site supervision, ensuring timely and cost-effective delivery. With a focus on quality and safety, we streamline processes for superior results.
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Financial Solutions
Tailored Financial Strategies for Business Growth
Tetrad provides customized financing solutions to support your business goals, from equipment acquisition to cash flow management. We empower clients with flexible, sustainable options for long-term success.
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Why us?
At Tetrad, we combine expertise, innovation, and a commitment to excellence to deliver unmatched results for our clients. Our holistic approach to project execution ensures seamless integration across all phases, from concept to completion. With a proven track record in construction management, EPC services , and business financing, we tailor our solutions to meet the unique needs of each project, optimizing outcomes every step of the way.
Choosing Tetrad means partnering with a team that prioritizes quality, integrity, and sustainability, ensuring your projects are not only successful but also impactful for the future.

Our commitment is to always do what’s right, no matter how challenging or time-consuming, as your trust and lasting satisfaction are at the heart of everything we do…
CEO・ Tetrad