Diverse, Dedicated, Creative
& Collaborative

Our team of Professional Engineers, Project Managers, Designers and Drafters craft innovative solutions with the latest technology. We are skilled in computer aided programs such as CAD and Revit, which deliver precision and efficiency.  We have expert knowledge in building codes, LEED, green building codes, and the latest MEP design & engineering requirements.  We are committed to providing exceptional service, delivering projects on time and within budget.


Sam Nakhla, PE


Sam’s passion for engineering started at the young age of 8, when he saw blueprints for the first time.  He was inspired by his uncles, one a mechanical engineer and the other, an architect. Sam pursued his passion and holds a degree in Electrical Engineering from Assiut University, Egypt. He has his Engineering License in the state of California, and several others.  Sam has 35 years of engineering experience and founded NAI Consulting Engineers in 2005.  He is widely respected for his honesty, flexibility, and fairness.  Sam embraces collaboration and fosters an open exchange of ideas with his team and clients. He goes above and beyond to meet his client’s expectations and works toward building long-term partnership.   In his free time, Sam likes to read and travel. He has been married to his wife Nashwa for 27 years and has two sons, Fady and Tim.

Meet Our Valencia Team

Malcolm Dann, PE

Mechanical & Plumbing Engineer

Sevan Dilanchian

Mechanical & Plumbing Designer

Hassan Hamedi, PE

Mechanical & Plumbing Engineer

Jorge Hoyos

Electrical Engineer

Zenah Kneizeh

Mechanical Designer

Len Mathew

Electrical Designer

Diane Maynard

Business Development & Marketing

Nashwa Nakhla

Office Manager

Anil Pappy

Chief Drafter

Miril Thomas

Electrical Designer

Meet Our Pasadena Team

Raymond Balayan

Electrical Designer

Mimi Grisco

Office Manager

Arsalan Nakhjavani

Electrical Designer

Dalton Guzman


Artin Tarverdi

Mechanical & Plumbing Designer

Tuan Diep

Electrical Designer