About Us

A legacy of surveying

Wes Thomas Associates, based in Kailua-Kona on the Big Island, has completed thousands of projects across all the major Hawaiian Islands and the Pacific Basin.

Land Specialists on the Big Island for over 50 years

Chrystal and Nicolas Yamasaki reviewing plans in the Kailua-Kona office
Chrystal Yamasaki, LPLS & Nicolas Yamasaki, LPLS — in our Kailua-Kona office

Since 1975, Wes Thomas Associates has provided land surveying and land planning services throughout Hawaii. Our work helps clients understand, optimize, and responsibly develop land—from individual properties and public infrastructure projects to large residential communities and resort developments. Over five decades, we have contributed to thousands of private, government, and community projects across the Hawaiian Islands.

We’re familiar with the processes of the County and State of Hawaiʻi governments, along with economic and physical conditions that affect work schedules, costs and project completion.


Our People

Principals & leadership

Chrystal Thomas Yamasaki, LPLS
Chrystal Thomas Yamasaki
President and Managing Surveyor
LPLS
Active in surveying since 1968, licensed Professional Land Surveyor since 1978, and registered to practice before the Land Court of the State of Hawaiʻi since 1981. Recipient of the Hawaii Land Surveyor’s Association Lifetime Achievement Award (2016).
Nicolas Yamasaki, LPLS
Nicolas Yamasaki
Managing Surveyor and Senior Project Manager
LPLS
Graduated from New Mexico State University in surveying and civil engineering. Licensed Professional Land Surveyor in Hawaiʻi since 2006; currently working toward licensure as a civil engineer.
Kim Yamasaki, Project Manager
Kim Yamasaki
Senior Project Manager
Chaminade University · Business Management
Graduated summa cum laude from Chaminade University of Honolulu with a Bachelor of Arts in Business Management. Joined Wes Thomas Associates in 2004 and serves as a Project Manager and Land Specialist, bringing over two decades of experience in land services across Hawaiʻi.
Mark Thomas, LPLS
Mark Thomas
Senior Party Chief
LPLS
Attended the prestigious Brinker School of Surveying and has worked throughout the Pacific Basin for Wes Thomas Associates. Licensed Professional Land Surveyor in Hawaiʻi since 1999.


Know your land. Plan its future.

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