What departments does mcCallumSather have?

mcCallumSather has employees across 10 departments including Operations, Finance, Program & Project Management, Business Development, Media & Communications.

What is the largest department at mcCallumSather?

The largest department at mcCallumSather is Civil Engineering & Construction with 8 employees.

Where are mcCallumSather employees located globally?

mcCallumSather has employees across 1 continents and 2 countries including Canada, United States Of America.

How has mcCallumSather's team size changed over time?

mcCallumSather's team has grown from approximately 70 to 77 employees based on available data.

mcCallumSather Employee Directory

Q: Who are mcCallumSather's key employees and leadership?

mcCallumSather's key employees include: Ceo: J. M., Cfo: H. B. G., Chief Operating Officer: M. A.

Architecture and PlanningCanada51-200 Employees

mcCallumSather is a Canadian-owned, multi-disciplinary firm based in Hamilton, Ontario, offering architecture, mechanical engineering, and interior design. The firm emphasizes sustainable and intelligent design, guiding decisions on siting, orientation, materials, and systems to achieve a lasting positive impact. Its collaborative approach aims to empower teams and integrate with the construction industry to deliver creative, durable solutions.
The practice serves clients seeking integrated design services for built environments, prioritizing design excellence and sustainability delivered through a collaborative process. In 2024, mcCallumSather expanded with a new office in Toronto, reflecting growth beyond its Hamilton base. The firm has earned industry recognition for sustainable projects, including the 2025 Third Award for Sustainable Project of the Year (Built) at the Rethinking The Future Awards for 1620 Main St. E.

mcCallumSather Global Highlights

North America
83

Canada
81
United States Of America
2

mcCallumSather's Leadership

J. M.
Ceo
Mobile Phone
Email
H. B. G.
Cfo
Mobile Phone
Email
M. A.
Chief Operating Officer
Mobile Phone
Email
D. H.
Director
Mobile Phone
Email
C. M.
Senior Architect, Project Manager
Mobile Phone
Email
A. Z.
Proposal Manager
Mobile Phone
Email
A. G.
Senior Public Relations And Communications Manager
Mobile Phone
Email
L. S.
Principal, Business Development And Marketing
Mobile Phone
Email

mcCallumSather Employee Metrics

100%

50%

0%

2026

2025

Arts & Design
Business
Engineering
Community & Social Services
Human Resources
Other
Administrative

Contact profiles from mcCallumSather

Name

Title

Contact

Location

Last Update

K. K.
Intermediate Designer
Mobile Phone
Email
Canada, Ontario
Apr 14, 2026
S. G.
Junior Designer
Mobile Phone
Email
Canada, Ontario
Nov 05, 2025
A. C.
Intermediate Designer
Mobile Phone
Email
Canada, Ontario
Nov 05, 2025
H. D.
Intermediate Designer
Mobile Phone
Email
Canada, Ontario
Nov 14, 2025
K. R.
Associate - Technologist
Mobile Phone
Email
Canada, Ontario
Jun 24, 2026
L. G.
Client Development And Designer
Mobile Phone
Email
Canada, Ontario
Jun 02, 2026
D. A.
Associate, Construction Contract Administrator
Mobile Phone
Email
Canada, Ontario
Dec 31, 2025
C. N.
Designer
Mobile Phone
Email
Canada, Ontario
Oct 24, 2025
F. S.
Mechanical Engineer
Mobile Phone
Email
Canada, Ontario
Aug 09, 2024
J. S.
Intermediate Project Architect
Mobile Phone
Email
Canada, Ontario
Aug 01, 2025

Frequently Asked Questions

What is mcCallumSather known for?

mcCallumSather was founded in 1996 and operates in the Architecture and Planning industry. Explore mcCallumSather's company overview page for more information.

What is mcCallumSather's most common email format?

mcCallumSather employees' email format typically follows the pattern of FirstL@mccallumsather.com. Trying to find reliable and up-to-date employee contact data? Find more mcCallumSather email formats with LeadIQ.

How many employees does mcCallumSather have currently?

mcCallumSather has approximately 83 employees as of September 2026. These team members are located across 1 continents, including North America.

Who are mcCallumSather's key employees and leadership?

As of September 2026, mcCallumSather's key employees include:

Ceo: J. M.
Cfo: H. B. G.
Chief Operating Officer: M. A.
Director: D. H.
Senior Architect, Project Manager: C. M.

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mcCallumSather Employee Directory

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