Tsiouvaras Simmons Holderness, Inc. Employee Directory

Civil EngineeringColorado, United States51-200 Employees

Tsiouvaras Simmons Holderness (TSH) is a Colorado-based firm founded in 2005 to serve the Colorado Transportation Industry. TSH works exclusively in Colorado on transportation projects providing bridge, highway, traffic and hydraulic design along with construction management services. Over the past nine years, TSH has earned a reputation as a leader in the industry resulting from the successful completion of many complex projects. Our approach is to provide responsive, innovative, and high-quality services coupled with a commitment from our firm leadership and associates to produce projects that meet a high standard and that will serve the best interest of the public. Our clients include the Colorado Department of Transportation, local cities, counties, municipal districts, transit agencies and airports. Our employees are our most valuable asset as a team we make client satisfaction the firm’s top priority.

Find Tsiouvaras Simmons Holderness, Inc. employees' phone numbers or email addresses

Tsiouvaras Simmons Holderness, Inc. Global Highlights

North America
26

United States Of America
26

Europe
1

United Kingdom Of Great Britain And Northern Ireland
1

Tsiouvaras Simmons Holderness, Inc.'s Leadership

G. T.
Owner
Mobile Phone
Email
M. R.
Senior Director - Investment Analytics
Mobile Phone
Email
B. C.
Project Manager Hydraulics
Mobile Phone
Email
K. M.
Project Manager
Mobile Phone
Email
N. J.
IT Manager
Mobile Phone
Email
R. W.
Project Manager
Mobile Phone
Email
S. F.
Project Manager
Mobile Phone
Email
G. C.
Senior Engineer
Mobile Phone
Email

Tsiouvaras Simmons Holderness, Inc. Employee Metrics

100%

50%

0%

2026

2025

Arts & Design
Community & Social Services
Program & Project Management
Accounting
Administrative
Other

Contact profiles from Tsiouvaras Simmons Holderness, Inc.

Name

Title

Contact Info

Location

Last Update

R. L.
Project Inspector
Mobile Phone
Email
United StatesColorado
Oct 19, 2025
D. Q.
Inspector
Mobile Phone
Email
United StatesColorado
Nov 19, 2025
A. W.
Traffic Engineer
Mobile Phone
Email
UNITED STATES
Jul 07, 2024
C. D.
Roadway Engineer (EI)
Mobile Phone
Email
United StatesColorado
Oct 23, 2024
C. K. P. S.
Bridge Engineer
Mobile Phone
Email
Jun 14, 2025
I. Q.
Structural Design Technician
Mobile Phone
Email
United StatesColorado
Oct 21, 2024
J. R. T.
Design Engineer / Ei
Mobile Phone
Email
United StatesColorado
Oct 23, 2024
K. H.
Civil Design Technician And Detailer
Mobile Phone
Email
Oct 16, 2024
R. C.
Project Engineer
Mobile Phone
Email
Oct 23, 2024
T. B.
Receptionist
Mobile Phone
Email
United States
Sep 12, 2024

Frequently Asked Questions

What is Tsiouvaras Simmons Holderness, Inc. known for?

Tsiouvaras Simmons Holderness, Inc. operates in the Civil Engineering industry. The company's main headquarters is located in 5690 Dtc Boulevard Suite 345w Greenwood Village, Colorado 80111 United States; you can contact the main corporate office by phone at

+1-303-771-****

. Explore Tsiouvaras Simmons Holderness, Inc.'s company overview page for more information.

What is Tsiouvaras Simmons Holderness, Inc.'s most common email format?

Tsiouvaras Simmons Holderness, Inc. employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more Tsiouvaras Simmons Holderness, Inc. email formats with LeadIQ.

How many employees does Tsiouvaras Simmons Holderness, Inc. have currently?

Tsiouvaras Simmons Holderness, Inc. has approximately 51 employees as of February 2026. These team members are located across 2 continents, including North AmericaEurope.

Who are Tsiouvaras Simmons Holderness, Inc.'s key employees and leadership?

As of February 2026, Tsiouvaras Simmons Holderness, Inc.'s key employees include:

Owner: G. T.
Senior Director - Investment Analytics: M. R.
Project Manager Hydraulics: B. C.
Project Manager: K. M.
IT Manager: N. J.

Looking for contact data? Unlock accurate emails and phone numbers for your ideal prospects with LeadIQ.

Everything for prospecting,
in one platform.

What you can expect from LeadIQ:

B2B data verified in real-time
Sync data to your CRM, & add it to an outreach sequence in one click
Integrations with your tech stack for optimal efficiency
A patented AI cold email generator
Account & contact-level job change tracking