Thienes Engineering, Inc.: Detailed Company Information & Corporate Profile
Summary
Thienes Engineering, Inc., founded in 1986, is headquartered in La Mirada, California. The firm specializes in building engineering with a focus on civil engineering and land surveying services.
With a workforce of 100 to 200 professionals, Thienes generates annual revenues between $10 million and $50 million, positioning it as a mid-sized player within the construction industry.
Key personnel include Principal Surveyor Rosemarie Silva, Design Engineers Seth Jordan Ocampo, Vicky and Morgan Holve, Senior Designer Douglas Thompson, Civil Engineering CAD Designer Fernando, Project Managers Dane Dysthe PE and Jason Yen, Executive Assistant Jillian Haas, Director of Surveying Joe Deal, Billing Specialist Kelly Hernandez, Contract Administrator Katie Cole, Plan Check Technician Megan Acosta, and Survey Chainmen Andrew Laporte and Bryan Oropeza.
| Thienes Engineering, Inc. Website | thieneseng.com |
| Social Links |  |
| Phone Number | 714.521.4811 |
| Industries | |
| Thienes Engineering, Inc. Headquarters Address | 14349 Firestone Blvd, La Mirada, California, 90638 US |
| Company Size | 100-200 employees |
| Specialities & Services | Civil Engineering, Land Surveying |
| Technologies | jQuery, Bootstrap, Stimulus, Flask |
| Founded | 1986 |
| Estimated Annual Revenue | $10M - 50M |
| Updated: | 2026-09-15 |
Estimated Website Traffic
The chart shows a growth in traffic to the thieneseng.com website. In September, traffic increased to 296, compared to 278 in the previous month. The highest traffic in 2026 was recorded in September, reaching 296 visits.
Workforce Turnover
Number of employees switched from or switched to
Departmental sample breakdown
Length of Employment
Thienes Engineering, Inc.'s workforce includes employees across a wide range of tenure levels.
6% have been with the company for 1 to 2 years19% have been with the company for 3 to 4 years19% have been with the company for 5 to 7 years6% have been with the company for 8 to 10 years50% have been with the company for more than 11 years
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Thienes Engineering, Inc. Corporate Information: FAQ
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