Engineering Performance, Enduring Impact
Pioneering Building System Performance For
Our Legacy
Our Journey: From Humble Beginnings to Industry Leadership

For over four decades, EEI has been grounded in a singular belief: building performance should be rooted in sound engineering, practical solutions, and cost-effective outcomes. That belief started with our founder, Pete Sabeff, who opened the doors of EEI (originally Engineering Economics Inc.) with a mission to help building owners and operators engineer the economics into their facilities.
In a time of economic uncertainty, Pete and his team focused on reducing energy consumption, extending system lifecycles, and improving how buildings perform for the people who rely on them every day. Those practical, human-centered priorities continue to define us today.
What Makes Our Legacy Meaningful
EEI’s legacy isn’t just about years in business — it’s about the lasting impact we’ve had on buildings, communities, and industries:
- Innovative building performance solutions that set new standards for efficiency, reliability, and value.
- Long-term client partnerships built on trust and measurable results.
- People-first engineering that improves environments for occupants, owners, and operators alike.
- A culture of continuous learning, collaboration, and excellence that attracts top talent and drives professional growth.


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