Terracon: Detailed Company Information & Corporate Profile

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Summary

Terracon is an independent engineering consulting firm headquartered in Olathe, Kansas, that has been operating since 1965. With a workforce of between five thousand and ten thousand professionals, the company specializes in building engineering services that include geotechnical, environmental, construction materials, and facilities management solutions.

Terracon’s revenue is estimated to fall within the $1 billion to $5 billion range, reflecting its substantial presence across the Kansas City metropolitan area and beyond. The firm is classified under SIC code 6500 and serves a broad spectrum of construction and infrastructure projects.

Key leaders include Tonya Thomas, Regional Senior Finance Coordinator; Don Dracon, Senior Vice President of Client Development; Tiffany Knight, Project Coordinator; Kimberly Hood, Project Coordinator; Dave Baska, Vice President/Senior Principal; Jennifer Diercksen, Project Engineer; Erik Skulstad, National Manager for Transportation & Infrastructure Services; Duncan Adrian, Operations Manager; Christopher Amy, Environmental Program Manager; Trent Murray, Department Manager; Adrian Fernandez, Engineering Technician; Makien AlAtassi, Construction Inspector; Elaine Motisi, Senior Associate/Regional Finance Manager; Manoj Devarakonda, CMIT Field Engineer; Jose Oviedo, Staff Engineer; and Steve Damron, CMT Department Manager.

Terracon Websiteterracon.com
Social Links
linkedIn
Phone Number(800) 593 7777
Industries
Terracon Headquarters Address10841 S Ridgeview Rd, Olathe, Kansas, 66061 US
Company Size5000-10000 employees
Specialities & ServicesEngineering Consultants, Geotechnical, Environmental, Construction Materials, Facilities Services
SIC Code6500
DMA CodeKansas City Metropolitan Area
Founded1965
Estimated Annual Revenue$1B - 5B
Operating StatusIndependent Company
Updated:2026-09-10

Terracon Org Chart

Chief Executive Officer

Chief Executive Officer

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Competitors

Name
Founded
Type
Employees
1996Public
Company
50K - 100K
1989Privately
Held
100 - 250
1979Privately
Held
100 - 250
1992Privately
Held
100 - 250

Estimated Website Traffic

The chart shows a decline in traffic to the terracon.com website. In August, traffic decreased to 63438, compared to 77403 in the previous month. The highest traffic in 2026 was recorded in March, reaching 130776 visits.

Workforce Turnover

Number of employees switched from or switched to

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Total employee turnover

Departmental sample breakdown

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Turnover activity captured in SignalHire's departmental sample ( employees):

Length of Employment

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Terracon's workforce includes employees across a wide range of tenure levels.

1% have been with the company for less than 1 year10% have been with the company for 1 to 2 years11% have been with the company for 3 to 4 years19% have been with the company for 5 to 7 years14% have been with the company for 8 to 10 years45% have been with the company for more than 11 years

Former Employees: Role Changes

Role at Former Company
Role at New Company
Contact top employees from Terracon
Tonya Thomas
Tonya ThomasRegional Senior Finance Coordinator
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Don Dracon
Don DraconSenior Vice President, Client Development
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Tiffany Knight
Tiffany KnightProject Coordinator
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Kimberly Hood
Kimberly HoodProject Coordinator
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Dave Baska
Dave BaskaVice President/Senior Principal
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Jennifer Diercksen
Jennifer DiercksenProject Engineer
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Erik Skulstad
Erik SkulstadNational Manager, Transportation & Infrastructure Services
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Duncan Adrian
Duncan AdrianOperations Manager
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Daniel Lafleur II
Daniel Lafleur IIEnvironmental Technician
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Christopher Amy
Christopher AmyEnvironmental Program Manager
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Carl Helman IV
Carl Helman IVStaff Scientist
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Abdoul Aziz Ouedraogo
Abdoul Aziz OuedraogoGeotechnical Engineer
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Jacob Neumann
Jacob NeumannGeotechnical Intern
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Dylan Heagy
Dylan HeagyGeotechnical Intern
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Michael Deien
Michael DeienEngineering Technician
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Brady Halvorson
Brady HalvorsonProject Manager
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Terracon Corporate Information: FAQ

Terracon operates in the Building engineering industries. More details can be found on the official website: terracon.com.
Terracon has offices located in Olathe, US.
The headquarters of Terracon are located in Olathe, United States.
The current CEO of Terracon is M.Gayle Packer
You can contact Terracon by phone at (800) 593 7777.
Terracon currently employs 5000-10000 people.

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