What departments does TSP, Inc. - Architecture | Engineering | Planning have?

TSP, Inc. - Architecture | Engineering | Planning has employees across 6 departments including Marketing, Sales, Engineering, Arts & Design, Operations.

What is the largest department at TSP, Inc. - Architecture | Engineering | Planning?

The largest department at TSP, Inc. - Architecture | Engineering | Planning is Engineering with 3 employees.

How has TSP, Inc. - Architecture | Engineering | Planning's team size changed over time?

TSP, Inc. - Architecture | Engineering | Planning's team has decreased from approximately 85 to 81 employees based on available data.

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TSP, Inc. - Architecture | Engineering | Planning Employee Directory

Architecture and PlanningSouth Dakota, United States201-500 Employees

TSP, Inc. is a regional, employee-owned firm based in Sioux Falls, South Dakota, offering architecture, engineering, planning, and interior design within a single organization. Founded in 1930 as a one-man shop, it has grown into a multidisciplinary practice capable of handling a broad range of projects. The firm combines diverse project experience with fresh design thinking to meet current needs while maintaining flexibility to adapt for the future and to prioritize end-user experience. In 2025, TSP collaborated with Kahler Slater to work with Black Hills State University and South Dakota State University on the development of experiential nursing education facilities. This collaboration underscores the firm's involvement in regional education initiatives and its role in multidisciplinary design efforts.

TSP, Inc. - Architecture | Engineering | Planning Global Highlights

North America
155

United States Of America
155

Asia
17

Iran
5
Turkey
4
India
2
Singapore
1
Indonesia
1
Qatar
1
China
1
Thailand
1
Russian Federation
1

Europe
17

United Kingdom Of Great Britain And Northern Ireland
7
France
6
Greece
1
Italy
1
Bosnia And Herzegovina
1
Lithuania
1

South America
4

Colombia
2
Ecuador
1
Venezuela
1

Africa
3

South Africa
1
Tunisia
1
Rwanda
1

TSP, Inc. - Architecture | Engineering | Planning's Leadership

N. D.
Owner
Mobile Phone
Email
G. A. T. T.
Owner
Mobile Phone
Email
L. O. S. E.
Supervisor Seguridad Industrial
Mobile Phone
Email
I. S. O.
Proje Müdürü
Mobile Phone
Email
K. H.
Manager
Mobile Phone
Email
J. C.
Marketing Manager
Mobile Phone
Email
S. A.
Sales Manager
Mobile Phone
Email
P. B.
Principal
Mobile Phone
Email

TSP, Inc. - Architecture | Engineering | Planning Employee Metrics

100%

50%

2026

2025

Arts & Design
Engineering
Business
Community & Social Services
Administrative
Other
Program & Project Management

Contact profiles from TSP, Inc. - Architecture | Engineering | Planning

Name

Title

Contact

Location

Last Update

N. D.
Owner
Mobile Phone
Email
India, Maharashtra
Feb 20, 2026
G. A. T. T.
Owner
Mobile Phone
Email
India, Delhi
L. O. S. E.
Supervisor Seguridad Industrial
Mobile Phone
Email
Colombia
Sep 08, 2026
I. S. O.
Proje Müdürü
Mobile Phone
Email
Turkey
Sep 13, 2026
K. H.
Manager
Mobile Phone
Email
South Korea, North Gyeongsang
Sep 04, 2026
J. C.
Marketing Manager
Mobile Phone
Email
United Kingdom, England
Apr 16, 2026
S. A.
Sales Manager
Mobile Phone
Email
United Kingdom, England
Sep 07, 2026
P. B.
Principal
Mobile Phone
Email
Oct 17, 2024
K. F.
Mechanical Engineer In Training
Mobile Phone
Email
Jun 29, 2026
C. K.
Design Technician
Mobile Phone
Email
Jun 25, 2026

Frequently Asked Questions

What is TSP, Inc. - Architecture | Engineering | Planning known for?

TSP, Inc. - Architecture | Engineering | Planning was founded in 1930 and operates in the Architecture and Planning industry. You can contact TSP, Inc. - Architecture | Engineering | Planning's main corporate office by phone at

+1-605-336-****

. Explore TSP, Inc. - Architecture | Engineering | Planning's company overview page for more information.

What is TSP, Inc. - Architecture | Engineering | Planning's most common email format?

TSP, Inc. - Architecture | Engineering | Planning employees' email format typically follows the pattern of FirstLast@teamtsp.com. Trying to find reliable and up-to-date employee contact data? Find more TSP, Inc. - Architecture | Engineering | Planning email formats with LeadIQ.

How many employees does TSP, Inc. - Architecture | Engineering | Planning have currently?

TSP, Inc. - Architecture | Engineering | Planning has approximately 246 employees as of August 2026. These team members are located across 5 continents, including North America, Asia and Europe.

Who are TSP, Inc. - Architecture | Engineering | Planning's key employees and leadership?

As of August 2026, TSP, Inc. - Architecture | Engineering | Planning's key employees include:

Owner: N. D.
Owner: G. A. T. T.
Supervisor Seguridad Industrial: L. O. S. E.
Proje Müdürü: I. S. O.
Manager: K. H.

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TSP, Inc. - Architecture | Engineering | Planning Employee Directory

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