Business Details
47 Years
experience
Trusted Construction Contractors in Hawaii
Established in 1979, Okahara & Associates has served as a trusted engineering firm dedicated to delivering innovative solutions across civil, mechanical, and landscape architecture projects. Our team of licensed professionals prioritizes client satisfaction while maintaining a deep commitment to community development and sustainable design practices. With decades of experience, we combine technical expertise with local knowledge to address the unique challenges of Hawaii's industries.Our focus on engineering excellence ensures clients receive tailored solutions that align with their budgetary and operational goals. As a minority-owned business, we emphasize collaboration, adaptability, and ethical standards in every project we undertake.
Services
Civil Engineering
Mechanical Engineering
Landscape Architecture
HVAC Design
Water System Design
Details
- Year established: 1979
Highlights and features
- We offer 45+ years of engineering experience in Hawaii's unique environments
- Our multi-discipline team handles complex civil, mechanical, and landscape projects
- Locally owned firm with deep understanding of Hawaiian regulatory requirements
- Certified professionals in sustainable design and arboriculture consultation
- Proven track record with government and private sector infrastructure projects
Associations and certifications
- LEED
- ISA Certified Arborist
Services
Civil Engineering
We provide comprehensive civil engineering solutions including site development, transportation systems, and water resource management. Our expertise covers subdivision design, highway planning, and municipal infrastructure projects. With specialized knowledge of Hawaiian geology and regulations, we deliver sustainable solutions that balance technical requirements with environmental stewardship.
Mechanical Engineering
Our mechanical engineering services focus on HVAC systems, plumbing infrastructure, and energy-efficient mechanical solutions. We specialize in pump station design and retro-commissioning projects for commercial and industrial facilities. Our team ensures optimal system performance while maintaining compliance with local building codes and sustainability standards.
Landscape Architecture
We offer full-service landscape architecture including site planning, irrigation systems, and sustainable vegetation management. Our services include ISA-certified arborist consultations and playground safety assessments. We create functional outdoor spaces that integrate with Hawaii's natural environment while meeting aesthetic and practical requirements.
People
Tyson T. Toyama
President
Mechanical engineering leader with dual state licensure and expertise in sustainable design. Graduated cum laude from UCLA with mechanical engineering degree. Oversees technical operations and strategic direction.
Charles L. Jury
Vice President
Senior civil engineer with extensive Hawaii infrastructure experience. Holds multiple professional certifications including CESCPP. Manages complex civil projects and regulatory compliance matters.
Matthew K. Fujioka
Vice President
Civil engineering expert with advanced degree from University of Hawaii. Specializes in sustainable design and water resource management. Leads technical teams for major infrastructure projects across the islands.
Questions
What engineering services do you offer?
We provide civil, mechanical, and landscape architecture services including infrastructure design, HVAC systems, and sustainable outdoor space planning.
How long have you served Hawaii businesses?
We've been providing engineering solutions to Hawaii clients since our founding in 1979, with over 45 years of local experience.
Are your engineers licensed in Hawaii?
All our engineers hold active Hawaii state licenses with additional certifications in specialized areas like water systems and sustainable design.
Do you work with government agencies?
Yes, we've completed numerous projects for federal, state, and local government clients including infrastructure improvements and facility upgrades.
What makes your firm unique?
As a Hawaii-based minority-owned firm, we combine technical expertise with deep local knowledge and community commitment across all our projects.
