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

TSP, Inc. - Architecture | Engineering | Planning has employees across 5 departments including Entrepreneurship, Marketing, Sales, Engineering, Arts & Design.

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

The largest department at TSP, Inc. - Architecture | Engineering | Planning is Entrepreneurship with 2 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
163

United States Of America
161
Mexico
2

Asia
11

Iran
3
India
3
Philippines
2
Turkey
1
Qatar
1
Singapore
1

Europe
9

United Kingdom Of Great Britain And Northern Ireland
4
France
2
Italy
1
Moldova
1
Denmark
1

Africa
4

Egypt
1
South Africa
1
Rwanda
1
Tunisia
1

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

N. D.
Owner
Mobile Phone
Email
G. A. T. T.
Owner
Mobile Phone
Email
J. C.
Marketing Manager
Mobile Phone
Email
S. A.
Sales Manager
Mobile Phone
Email
P. B.
Principal
Mobile Phone
Email
K. F.
Mechanical Engineer In Training
Mobile Phone
Email
C. K.
Design Technician
Mobile Phone
Email
L. S.
Addetta All'amministrazione
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 Info

Location

Last Update

N. D.
Owner
Mobile Phone
Email
IndiaMaharashtra
Feb 20, 2026
G. A. T. T.
Owner
Mobile Phone
Email
IndiaDelhi
J. C.
Marketing Manager
Mobile Phone
Email
United KingdomEngland
Apr 16, 2026
S. A.
Sales Manager
Mobile Phone
Email
United KingdomEngland
Mar 12, 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
L. S.
Addetta All'amministrazione
Mobile Phone
Email
ItalyPiedmont
Jun 01, 2026
A. K. Z.
Responsable Informatique
Mobile Phone
Email
United KingdomLondon
Feb 25, 2024
C. M.
PL
Mobile Phone
Email
Hong Kong
Aug 06, 2024

Frequently Asked Questions

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

TSP, Inc. - Architecture | Engineering | Planning was founded in 1930 operates in the Architecture and Planning industry; you can contact the 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 . 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 239 employees as of July 2026. These team members are located across 4 continents, including North AmericaAsiaEurope.

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

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

Owner: N. D.
Owner: G. A. T. T.
Marketing Manager: J. C.
Sales Manager: S. A.
Principal: P. B.

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

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