What departments does Sierra Systems Group have?

Sierra Systems Group has employees across 13 departments including Solutions Engineering, Supply Chain, Marketing, Operations, Engineering.

What is the largest department at Sierra Systems Group?

The largest department at Sierra Systems Group is Solutions Engineering with 4 employees.

Where are Sierra Systems Group employees located globally?

Sierra Systems Group has employees across 7 continents and 78 countries including Nigeria, Morocco, South Africa, Kenya, Egypt.

How has Sierra Systems Group's team size changed over time?

Sierra Systems Group's team has decreased from approximately 28K to 18K employees based on available data.

Sierra Systems Group Employee Directory

Q: Who are Sierra Systems Group's key employees and leadership?

Sierra Systems Group's key employees include: Executive Assistant President And Chief Executive Officer: D. K., Coo: A. C., Cto Emea, Ntt Data Services: M. O., Cfo Consulting Services: S. P. S., CTO EUX Technology Group (State Of Georgia Managed Services): D. H..

IT Services and IT ConsultingTexas, United States10001+ Employees

NTT DATA, Inc. is a trusted global innovator of business and technology services. We're committed to helping clients innovate, optimize and transform for long-term success. Our R&D investments help organizations and society move confidently and sustainably into the digital future. As a Global Top Employer, we have diverse experts in more than 50 countries and a robust partner ecosystem of established and start-up companies. Our services include business and technology consulting, data and artificial intelligence, industry solutions, as well as the development, implementation and management of applications, infrastructure, and connectivity.

Sierra Systems Group Global Highlights

North America
12K

United States Of America
9.8K
Canada
893
Mexico
714
Panama
96
Costa Rica
61
Dominican Republic
3
Trinidad And Tobago
2
Guatemala
1
El Salvador
1

Asia
10K

India
10K
Malaysia
87
Philippines
85
Singapore
74
Japan
55
China
42
United Arab Emirates
25
Saudi Arabia
16
Indonesia
13
Bangladesh
7
Viet Nam
6
Pakistan
6
Turkey
3
Thailand
3
Sri Lanka
2
Qatar
2
Iran
2
Jordan
1
Kuwait
1
Oman
1
Nepal
1
Lebanon
1

Europe
798

United Kingdom Of Great Britain And Northern Ireland
189
Spain
181
Romania
160
Ireland
118
Germany
44
Italy
26
Netherlands
14
France
14
Switzerland
9
Finland
8
Portugal
7
Belgium
6
Poland
4
Austria
4
Slovakia
3
Denmark
3
Luxembourg
3
Serbia
1
Hungary
1
Norway
1
Bulgaria
1
Estonia
1

South America
248

Brazil
138
Peru
38
Chile
29
Argentina
21
Colombia
20
Ecuador
1
Venezuela
1

Africa
81

Morocco
56
Nigeria
7
South Africa
5
Egypt
3
Ghana
2
Benin
2
Kenya
1
Sierra Leone
1
Tunisia
1
Niger
1
Côte D'ivoire
1
Uganda
1

Oceania
37

Australia
33
New Zealand
3
Fiji
1

Sierra Systems Group's Leadership

A. C.
Coo
Mobile Phone
Email
M. O.
Cto Emea, Ntt Data Services
Mobile Phone
Email
S. P. S.
Cfo Consulting Services
Mobile Phone
Email
D. H.
CTO EUX Technology Group (State Of Georgia Managed Services)
Mobile Phone
Email
E. S.
Cio
Mobile Phone
Email
E. S.
Coo Nucleus It Automation
Mobile Phone
Email
D. G.
Chief Technology Officer, Enterprise Architecture & Solution Consulting
Mobile Phone
Email
L. S.
Chief Technology Officer
Mobile Phone
Email

Sierra Systems Group Employee Metrics

100%

50%

0%

2026

2025

Analytics
Engineering
Consultant
Information Technology
Program & Project Management
Other
Administrative

Contact profiles from Sierra Systems Group

Name

Title

Contact Info

Location

Last Update

D. L.
Owner
Mobile Phone
Email
UNITED STATES
Oct 17, 2024
D. D.
Owner Funeral Director
Mobile Phone
Email
UNITED STATES
Mar 07, 2023
D. H.
CTO EUX Technology Group (State Of Georgia Managed Services)
Mobile Phone
Email
United StatesGeorgia
May 17, 2024
D. H.
Owner
Mobile Phone
Email
United StatesKentucky
Sep 13, 2024
D. H.
Owner
Mobile Phone
Email
UNITED STATES
Mar 07, 2023
D. C.
President
Mobile Phone
Email
UNITED STATES
Mar 07, 2023
D. K.
Executive Assistant President And Chief Executive Officer
Mobile Phone
Email
Oct 23, 2024
D. F.
Owner
Mobile Phone
Email
UNITED STATES
Mar 07, 2023
E. S.
Cio
Mobile Phone
Email
UNITED STATES
Mar 07, 2023
E. S.
Coo Nucleus It Automation
Mobile Phone
Email
United StatesTexas
Aug 01, 2025

Frequently Asked Questions

What is Sierra Systems Group known for?

Sierra Systems Group operates in the IT Services and IT Consulting industry. The company's main headquarters is located in 7950 Legacy Drive Suite 900 Plano, Texas 75024 United States. Explore Sierra Systems Group's company overview page for more information.

What is Sierra Systems Group's most common email format?

Sierra Systems Group employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more Sierra Systems Group email formats with LeadIQ.

How many employees does Sierra Systems Group have currently?

Sierra Systems Group has approximately 25K employees as of June 2026. These team members are located across 6 continents, including North AmericaAsiaEurope.

Who are Sierra Systems Group's key employees and leadership?

As of June 2026, Sierra Systems Group's key employees include:

Coo: A. C.
Cto Emea, Ntt Data Services: M. O.
Cfo Consulting Services: S. P. S.
CTO EUX Technology Group (State Of Georgia Managed Services): D. H.
Cio: E. S.

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Sierra Systems Group Employee Directory

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