What departments does Syska Hennessy Group have?

Syska Hennessy Group has employees across 7 departments including Finance, Engineering, Administrative, Legal, Information Technology.

What is the largest department at Syska Hennessy Group?

The largest department at Syska Hennessy Group is Engineering with 4 employees.

Where are Syska Hennessy Group employees located globally?

Syska Hennessy Group has employees across 4 continents and 15 countries including Nigeria, China, United Arab Emirates, India, Saudi Arabia.

How has Syska Hennessy Group's team size changed over time?

Syska Hennessy Group's team has decreased from approximately 981 to 649 employees based on available data.

Syska Hennessy Group Employee Directory

Q: Who are Syska Hennessy Group's key employees and leadership?

Syska Hennessy Group's key employees include: President & Chief Executive Officer: C. J. I., Chief Financial Officer: D. A., Chief Administrative Officer: L. C., Chief Human Resources Officer: P. D..

Design ServicesNew York, United States501-1000 Employees

Syska Hennessy Group is an international design services firm providing high-performance engineering, consulting, and commissioning for the built environment. By applying next-generation tools, it integrates technical expertise to deliver solutions that address complex design and operation requirements. The company emphasizes a collaborative, client-centered approach and seeks to conduct its work with integrity and social responsibility.

Based in New York, the firm maintains a portfolio of international, technically sophisticated projects and has been recognized by ENR as the top data center designer in its Top 500 Design Firms Sourcebook. In early 2026, Syska Hennessy participated in a terminal project designed by Corgan Associates in collaboration with CannonDesign for the MEP scope, pursuing LEED Gold certification with solar technology, illustrating ongoing cross-firm collaboration.

Syska Hennessy Group Global Highlights

North America
835

United States Of America
834
Canada
1

Asia
77

United Arab Emirates
42
China
16
India
10
Saudi Arabia
5
Jordan
1
Bahrain
1
Qatar
1
Philippines
1

Europe
4

Romania
1
Hungary
1
Switzerland
1
Poland
1

Africa
1

Nigeria
1

Syska Hennessy Group's Leadership

D. A.
Chief Financial Officer
Mobile Phone
Email
L. C.
Chief Administrative Officer
Mobile Phone
Email
P. D.
Chief Human Resources Officer
Mobile Phone
Email
C. J. I.
President & Chief Executive Officer
Mobile Phone
Email
S. B.
Associate Partner
Mobile Phone
Email
A. V.
Associate Partner
Mobile Phone
Email
M. M.
Associate Partner, Director Of Communications
Mobile Phone
Email
N. P.
Associate Partner/Supervising Fire Protection Engineer
Mobile Phone
Email

Syska Hennessy Group Employee Metrics

100%

50%

0%

2026

2025

Engineering
Arts & Design
Program & Project Management
Accounting
Administrative
Other
Marketing
Consultant
Civil Engineering & Construction

Contact profiles from Syska Hennessy Group

Name

Title

Contact Info

Location

Last Update

D. E.
Owner
Mobile Phone
Email
Oct 17, 2024
D. G.
Owner
Mobile Phone
Email
Oct 21, 2024
E. O.
Director Of Project Accounting And Associate Partner
Mobile Phone
Email
Oct 22, 2024
H. B.
Chairman
Mobile Phone
Email
Oct 17, 2024
J. C.
Partner
Mobile Phone
Email
Oct 22, 2024
J. H.
Associate Partner, Director, Vertical Transportation Group, New England
Mobile Phone
Email
Oct 22, 2024
J. C.
Associate Partner - Director / Vertical Transportation
Mobile Phone
Email
United StatesNew York
Jul 07, 2024
J. E.
Associate Partner
Mobile Phone
Email
United StatesGeorgia
Oct 18, 2024
J. M.
Associate Partner
Mobile Phone
Email
United StatesNew York
Nov 29, 2023
J. C.
Technical Manager And Associate Partner
Mobile Phone
Email
Oct 22, 2024

Frequently Asked Questions

What is Syska Hennessy Group known for?

Syska Hennessy Group was founded in 1928 operates in the Design Services industry. The company's main headquarters is located in 1185 Avenue of The Americas New York, New York 10036 United States; you can contact the main corporate office by phone at

+1-212-921-****

. Explore Syska Hennessy Group's company overview page for more information.

What is Syska Hennessy Group's most common email format?

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

How many employees does Syska Hennessy Group have currently?

Syska Hennessy Group has approximately 816 employees as of May 2026. These team members are located across 4 continents, including North AmericaAsiaEurope.

Who are Syska Hennessy Group's key employees and leadership?

As of May 2026, Syska Hennessy Group's key employees include:

Chief Financial Officer: D. A.
Chief Administrative Officer: L. C.
Chief Human Resources Officer: P. D.
President & Chief Executive Officer: C. J. I.
Associate Partner: S. B.

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Syska Hennessy Group Employee Directory

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