Diverse, Dedicated, Creative, & Collaborative

Our team of Professional Engineers, Project Managers, Designers, and Drafters craft innovative solutions using the latest technology. We are skilled in computer-aided programs, such as CAD and Revit, and BIM collaboration tools, like Navisworks. 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.

The NAI Team and family members

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 clients’ expectations and works toward building long-term partnerships. 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 Team

Jorge Hoyos,

Electrical Engineer

Zenah Kneizeh

Mechanical Designer

Than Htut

Senior Mechanical Engineer

Raymond Balayan

Electrical Designer

Tuan Diep

Electrical Designer

Len Mathew

Electrical Designer

Miril Thomas

Electrical Designer

Zin Htet

Mechanical & Plumbing Designer

Anil Pappy

Chief Drafter/ Revit and BIM

Dalton Guzman


Nashwa Nakhla

Accounting & Office Manager, Valencia

Mimi Grisco

Office Manager, Pasadena

Mrit K. Roy

Mechanical &Plumbing designer

Gordon Butler

Mechanical & Plumbing Designer

Kathlene McCarty

Business Development