What departments does Simpson Gumpertz & Heger (SGH) have?

Simpson Gumpertz & Heger (SGH) has employees across 11 departments including Entrepreneurship, Information Technology, Product Management, Sales, Operations.

What is the largest department at Simpson Gumpertz & Heger (SGH)?

The largest department at Simpson Gumpertz & Heger (SGH) is Program & Project Management with 10 employees.

Where are Simpson Gumpertz & Heger (SGH) employees located globally?

Simpson Gumpertz & Heger (SGH) has employees across 7 continents and 37 countries including Nigeria, Egypt, South Africa, Ghana, Benin.

How has Simpson Gumpertz & Heger (SGH)'s team size changed over time?

Simpson Gumpertz & Heger (SGH)'s team has decreased from approximately 1.9K to 803 employees based on available data.

Learn more at LeadIQ.com

Simpson Gumpertz & Heger (SGH) Employee Directory

Civil EngineeringMassachusetts, United States501-1000 Employees

Simpson Gumpertz & Heger (SGH) is a national civil engineering firm based in Waltham, Massachusetts. It provides integrated guidance for complex building projects, drawing on expertise in structures, building enclosures, advanced analysis, code consulting, and applied science and research. The firm aims to deliver comprehensive solutions that address performance across design, construction, and operation, supported by a nationwide network of offices and hundreds of professionals.

SGH serves clients with challenging building performance and enclosure issues, offering multidisciplinary engineering services across the civil engineering field. In 2026, the firm expanded its building enclosure consulting presence in Atlanta, extending its Southeastern U.S. footprint.

Simpson Gumpertz & Heger (SGH) Global Highlights

North America
1K

United States Of America
1K
Canada
8
Mexico
1

Asia
64

Singapore
31
India
8
Saudi Arabia
7
Malaysia
6
Philippines
3
Iran
2
Indonesia
2
Lebanon
1
Yemen
1
United Arab Emirates
1
Turkey
1
Sri Lanka
1

Europe
22

United Kingdom Of Great Britain And Northern Ireland
6
Poland
5
France
2
Germany
2
Netherlands
2
Albania
1
Norway
1
Croatia
1
Spain
1
Sweden
1

Africa
8

Egypt
2
South Africa
2
Nigeria
1
Ghana
1
Benin
1
Senegal
1

South America
4

Brazil
2
Colombia
1
Venezuela
1

Oceania
2

New Zealand
2

Simpson Gumpertz & Heger (SGH)'s Leadership

C. R.
Chief Executive Officer
Mobile Phone
Email
G. B.
Chief Executive Officer
Mobile Phone
Email
C. H.
Owner
Mobile Phone
Email
J. D.
Owner Founder
Mobile Phone
Email
J. Z.
Owner
Mobile Phone
Email
P. L.
Partner
Mobile Phone
Email
R. W.
Owner Founder
Mobile Phone
Email
M. M. T.
Technical Director
Mobile Phone
Email

Simpson Gumpertz & Heger (SGH) Employee Metrics

100%

50%

2026

2025

Healthcare Services
Consultant
Engineering
Program & Project Management
Information Technology
Other
Arts & Design
Community & Social Services
Administrative
Accounting

Contact profiles from Simpson Gumpertz & Heger (SGH)

Name

Title

Contact

Location

Last Update

C. H.
Owner
Mobile Phone
Email
Netherlands, North Brabant
Aug 29, 2026
C. R.
Chief Executive Officer
Mobile Phone
Email
Oct 17, 2024
G. B.
Chief Executive Officer
Mobile Phone
Email
Oct 22, 2024
J. D.
Owner Founder
Mobile Phone
Email
Oct 16, 2024
J. Z.
Owner
Mobile Phone
Email
Oct 21, 2024
P. L.
Partner
Mobile Phone
Email
Jul 29, 2026
R. W.
Owner Founder
Mobile Phone
Email
Oct 23, 2024
M. M. T.
Technical Director
Mobile Phone
Email
Bay
Jul 21, 2026
B. S.
Technical Director
Mobile Phone
Email
Bay
Aug 28, 2026
A. E.
Director Product Planning
Mobile Phone
Email
Oct 16, 2024

Frequently Asked Questions

What is Simpson Gumpertz & Heger (SGH) known for?

Simpson Gumpertz & Heger (SGH) was founded in 1956 and operates in the Civil Engineering industry. You can contact Simpson Gumpertz & Heger (SGH)'s main corporate office by phone at

+1-781-907-****

. Explore Simpson Gumpertz & Heger (SGH)'s company overview page for more information.

What is Simpson Gumpertz & Heger (SGH)'s most common email format?

Simpson Gumpertz & Heger (SGH) employees' email format typically follows the pattern of FLast@sgh.com. Trying to find reliable and up-to-date employee contact data? Find more Simpson Gumpertz & Heger (SGH) email formats with LeadIQ.

How many employees does Simpson Gumpertz & Heger (SGH) have currently?

Simpson Gumpertz & Heger (SGH) has approximately 980 employees as of August 2026. These team members are located across 6 continents, including North America, Asia and Europe.

Who are Simpson Gumpertz & Heger (SGH)'s key employees and leadership?

As of August 2026, Simpson Gumpertz & Heger (SGH)'s key employees include:

Chief Executive Officer: C. R.
Chief Executive Officer: G. B.
Owner: C. H.
Owner Founder: J. D.
Owner: J. Z.

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

Ready to create more pipeline?

Get a demo and discover why thousands of SDR and Sales teams trust
LeadIQ to help them build pipeline confidently.

Simpson Gumpertz & Heger (SGH) Employee Directory

Find Simpson Gumpertz & Heger (SGH) employees' phone numbers or email addresses

Name search is limited — try advanced search instead