Business Details
50+ Years
experience
Your Trusted Partner for Civil Engineering Solutions in Hawaii
Founded in 1934, Austin Tsutsumi & Associates (ATA) is an employee-owned civil engineering firm deeply rooted in Hawaii's communities. With over 90 years of experience, we specialize in civil engineering, environmental solutions, transportation systems, and land surveying across the Pacific Basin. Our team prioritizes sustainability, community impact, and innovative problem-solving, serving both public and private clients from project conception to completion.Recognized for technical excellence and client-focused service, we maintain long-standing partnerships with government agencies and private entities. Our commitment to quality is reflected in our use of advanced technologies, LEED-accredited professionals, and a culture of collaboration that has earned us consistent recognition as one of Hawaii's top workplaces.
Services
Civil Engineering
Environmental Engineering
Transportation Engineering
Land Surveying
Project Management
Public Works
Construction Management
Land Development
Sustainable Design
Traffic Impact Analysis
Details
- Year established: 1934
Highlights and features
- We offer over 90 years of experience in civil engineering across the Pacific Basin.
- Our team provides community-minded and sustainable solutions for complex infrastructure challenges.
- We implement innovative approaches combining advanced technology with local expertise.
- Our company culture emphasizes client collaboration and long-term partnership development.
- We are respected by local governments for delivering high-quality public works projects.
What people say
Client-serviced focus
Let's make it happen approach
Deep community relationships
Solution-oriented work
Comprehensive strengths
Services
Civil Engineering
Our Civil Engineering Group delivers comprehensive solutions across the Pacific. We handle projects from concept through construction management, specializing in residential and commercial developments, public infrastructure, and sustainable design. Our team utilizes advanced software and LEED-certified expertise to create resilient, community-focused infrastructure that meets evolving needs.
Environmental Engineering
We provide innovative water and wastewater treatment solutions for public and private clients. Our services include groundwater development, distribution systems, and wastewater reuse programs. With decades of experience, we design efficient systems that balance environmental stewardship with technical requirements for long-term sustainability.
Transportation Engineering
Our Transportation Group addresses complex mobility challenges with data-driven solutions. We specialize in traffic impact analysis, signal design, and multi-modal transportation systems. With over 50 years of combined experience, we create safe, efficient transportation networks that support community growth and economic development.
Land Surveying
Our Survey Group offers precision mapping and boundary analysis using state-of-the-art technology. Services include topographic surveys, construction stakeout, and ALTA mapping. We support projects of all sizes with accurate data collection and digital modeling to ensure successful project execution from initial planning through final implementation.
Construction Management
We provide comprehensive construction management services ensuring project quality and compliance. Our team coordinates between stakeholders, monitors timelines and budgets, and ensures adherence to technical specifications. With deep local knowledge and technical expertise, we deliver complex infrastructure projects efficiently while maintaining community engagement throughout the construction process.
People
Terrance Arashiro
President
With decades of engineering experience, Terrance leads ATA's strategic direction while maintaining active involvement in major projects. His leadership emphasizes technical excellence and community impact.
Adrienne Wong
Vice President, Maui Branch Manager
Adrienne oversees Maui operations, combining technical expertise with local knowledge to deliver tailored engineering solutions that address Hawaii's unique island challenges.
DeAnna Hayashi
Vice President, Chief Engineer
As Chief Engineer, DeAnna ensures technical quality across projects while mentoring staff. Her expertise in civil engineering spans decades of Hawaii infrastructure development.
Erik Kaneshiro
Vice President, Director of Surveying
Erik leads our surveying division, applying advanced technology to deliver precise geospatial data. His team supports complex projects with accurate mapping and boundary analysis.
Garrett Tokuoka
Vice President
Garrett contributes technical expertise and project management leadership across diverse engineering initiatives, focusing on innovative solutions for Hawaii's infrastructure needs.
Questions
What geographic areas do you serve?
We operate across all Hawaiian islands and the Pacific Basin, including Indonesia, Fiji, Palau, Guam, and Japan.
What engineering disciplines do you offer?
We provide civil, environmental, transportation engineering, and land surveying services with specialized expertise in each field.
How can I apply for a job at ATA?
Visit our Careers page to download an application or email your resume to the appropriate office location.
What makes ATA different from other firms?
Our employee-owned structure, 90-year local history, and commitment to community-focused solutions set us apart.
Do you work on public infrastructure projects?
Yes, we collaborate with government agencies on roads, water systems, and public facilities across Hawaii.
Can you handle large-scale development projects?
Our team has extensive experience managing complex developments from initial planning through construction completion.