About Us

The EIFFEL Industries Advantage

We enter every construction site with the goal of working on the project with focused precision. We prefer to be involved in the early design phases of a project in order to work closely with the owner, architect, design/build contractor, and other consultants to make sure that the structure is cost-effective while guaranteeing that it meets the needs of everyone involved.

Our engineering team can design and engineer retail spaces, corporate offices, schools, hospitals, heavy industrial buildings, mixed-use development, multifamily homes, and new custom home builds.

Our construction division has the experience and expertise to not only provide architectural and engineering services but to also undertake turnkey design build projects from inception to completion. Eiffel construction has the qualifications and experience for heavy industrial, wastewater, water treatment plants, commercial, retail, offices, and mixed-use development.

What sets us apart is our ability to use our inhouse IT solutions and tools to increase our efficiently in project management and project execution.

Memberships and Affiliations

  • American Concrete Institute (ACI, Professional Member)
  • American Institute of Steel Construction (AISC)
  • American Society of Civil Engineers (ASCE, Affiliate Member)


  • KB-1 311191
  • A 162106

Professional Engineer Registration

  • Arizona License No. #44084
  • California License No. #C75921

Key Persons

Sam Biswas

Sam Biswas

Founder, President, and CEO

Sam is a licensed Professional Engineer in State of Arizona and California with more than 25 years of experience. Sam has a demonstrated record within architectural, engineering, and construction (AEC) industry with his extensive work on variety of projects across diverse construction verticals including commercial, residential, retail, high seismic retrofitting and hurricane structures. Sam and his team of engineers & construction managers provide instant, smart and innovative building concepts and engineering solutions with state-of-the-art technology automation to ensure your “design-build” project exceeds the building code requirements and gets completed on time and within budget. Additionally, Sam is also involved in global ventures that he owns and operates ranging from IT Consulting Services, Import–Export, and promotion of state-of-the-art technologies worldwide.

Jenn Rentzis

Jennifer Rentzis

Operations Manager

As the Operations Manager for Eiffel Structural Engineers, Jennifer manages engineering contracts, oversees project execution and delivery, and client relations. She is the primary point of contact for clients. As an Arizona native, she is a licensed real estate agent and a certified paralegal as well as a notary public.

Ellen Gould

Ellen Gould

Executive Assistant

As the current executive assistant for Eiffel Industries, LLC, Ellen oversees the management and day to day operations of both Eiffel Construction, Inc and Eiffel Structural Engineers, LLC. Ellen graduated from Portland State University with a Bachelor’s of Science in Psychology with an emphasis in Developmental Psychology and Research. She comes to Eiffel from New York City where she managed both medical and construction offices. She brings not only her ability to manage in a high pressure, fast paced environment, but also her extensive experience in customer service and client relationship management.

Gerald Kirtland

Gerald Kirtland

Chief Estimator

As the Chief Estimator for Eiffel Construction, Inc, Jerry has 42 years of experience in the estimating and management of major heavy industrial construction projects. Jerry has managed projects from 1 million to 30 million in Arizona and California being responsible for the start and completion of projects in conformance with building codes and engineering designs. As a chief estimator, Jerry has successfully bid over $800 Million from 1988 – Present.

Phillip Reed

Phillip Reed

Senior Business Development

Phil is a seasoned construction professional with a variety of management experience at the executive and project level. His experience includes a wide range of project types, such as refinery, water, wastewater, material handling, power facility, and commercial construction.