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Hariton Engineering
Hariton Engineering

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Principal Owner

Meet Celestin Hariton, Principal at Hariton Engineering Inc.

Celestin Hariton stands at the forefront of sustainable engineering with a dedicated career spanning over three decades at Hariton Engineering Inc. With a Bachelor of Science in Electrical Engineering from California State University, Northridge, Celestin has honed his expertise to specialize in Mechanical, Electrical, and Plumbing (MEP) engineering services, emphasizing sustainable and net-zero design solutions.

(626) 449-4223

Professional Credentials

Celestin's approach combines deep industry knowledge with a passion for eco-friendly design. He is not just an engineer; he's a problem solver and critical thinker who views challenges as opportunities for innovation. Under his guidance, Hariton Engineering Inc. has implemented countless sustainable systems that enhance building functionality while reducing environmental impact.

Licensed Professional Engineer

in both California and Hawaii, Celestin upholds the highest standards of engineering practice.

LEED AP BD+C Certified

He is a recognized leader in designing and implementing building designs that meet the rigorous standards of sustainability.

Utility Reports
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Armen Yarian

Shareholder-Elect

Mechanical and Plumbing Project Manager

Meet Armen, head of Mechanical and Plumbing at Hariton Engineering. He brings a hands-on, straightforward approach to system design, focusing on practical solutions, strong coordination, and keeping projects on track. Armen earned his Master of Mechanical Engineering from California State University, Los Angeles, and is known for his energy, accountability, and ability to work closely with clients and project teams. His work reflects Hariton’s commitment to dependable service and long-term relationships. Outside the office, Armen enjoys fishing, running, practicing judo, and spending quality time with his daughter.
 
Education: Master of Mechanical Engineering from Cal State University, Los Angeles
Interests: Fishing, Running, Judo and spending all his free time with his daughter.

Rebecca Collinsworth​

Business Operations

Rebecca plays a pivotal role at Hariton Engineering, leading the firm’s business operations with precision and accountability. With a strong foundation in financial management, systems coordination, and client relations, she ensures that both internal workflows and external communications stay on track. Her proactive mindset and consistent reliability have made her a key contributor to the firm’s ongoing success and reputation for excellence.

Interest: Traveling, self-reliant living, and her grandchildren

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