Beyond Engineering

Leading the Way Toward Sustainability, Digitalization, and New Energy

What We Do

Serving Clients Worldwide Since 2002

Trusted Sustainability Consultants, Advisors and Turnkey EPC Contractors

DEMS LLC supports residential, commercial, transportation, and industrial companies in their sustainability, new energy, and digital transformation journey. We are dependable sustainability consultants, advisors, and general contractors  who provide comprehensive solutions that cover lean, agile, engineering, procurement, construction, operation, and program management.

About Us

Streamline Your Project with Industry Experts

Gain access to seasoned engineering, construction management, and project management professionals who will guide you throughout your portfolio of projects and programs. With over 150 years of combined industry experience, we simplify even the most complex projects.

Three Industrial Engineers

Cost-Effective and On-Time Project Completion

We deliver projects on schedule and within budget, prioritizing cost management and adherence to timelines. Our high-quality support is available both in the United States and internationally.

Oil Tank Storage

Partner with DEMS for High-Quality Support

DEMS is a trusted consulting firm for engineering, technology, procurement, construction, and project management in various sectors, including oil and gas, petroleum refining, chemical, power and renewable, infrastructure, transportation, and CCUS.

We help you reduce carbon emissions, lower asset lifecycle ownership costs, mitigate ESG risks, and boost revenue through people, process, and technology transformation. Contact us today to unlock the full potential of your projects. Together, we can create a greener and more profitable future.

Bridge Under Construction