KOA Corporation Information

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Summary

KOA Corporation has been in the industry for 38 years. The company currently specializes in the Civil Engineering area. Its headquarters is located at US. The estimated number of employees - 265. To connect with KOA Corporation employee register on SignalHire.

Organization Website	hwlochner.com
Phone Number	(323) 260-4703
Industries	Building engineering
Headquarters Location	1100 Corporate Center Drive, Monterey Park, CA, 91754 US
Employees Size	100-200 employees
Specialties	Traffic Engineering, Transportation Planning, Construction Management, Active Transportation, Grant Writing, Grant Management, LRSP, SSARP, Civil Engineering, Highway Design, Transportation Design, Program Management, Safe Routes to School, Street Improvements, Parking Design, Construction Inspection
Founded	1987

Estimated Website Traffic

The chart shows a growth in traffic to the hwlochner.com website. In November, traffic increased to 4393, compared to 4225 in the previous month. The highest traffic in 2025 was recorded in November, reaching 4393 visits.

Employees Turnover 3 quarter 2025

Number of employees switched from or switched to

Total number all of employee turnover

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Length of Employment

Employee tenure at KOA Corporation shows a diverse range of experience levels:

2% have been with the company for less than 1 year4% for 1–2 years4% for 3–4 years23% for 5–7 years6% for 8–10 years60% have over 11 years of service at KOA Corporation

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Melanie Vuong

Marketing Coordinator

KOA Corporation Information

Summary

Organization Website

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Employees Size

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Founded