What we do

Tatham Engineering is a team of multi-disciplinary project managers, engineers, technical staff and industry professionals who have been challenged to provide consulting engineering, design and construction services relating to the fields of Coastal, Land Development, Municipal, Structural (Buildings and Bridges), Transportation, Water Resources, Water & Wastewater, Mechanical and Electrical engineering.

Originally established in Collingwood, where our head office remains, we also operate through offices in Barrie, Bracebridge, Orillia and Ottawa.

How we do it

Employee-owned and community-driven, we are invested in each project regardless of whether it is large or small, in its infancy or nearing completion, simple or complex.

Our goal, for each and every project, is to not only meet but exceed client expectations through project execution and delivery. In doing so, we draw from our 35 years of experience and our valued relationships with approval authorities, agencies and stakeholder groups to maintain project momentum and ensure solutions are cost effective, readily achievable and amenable to all.

Who we are

Meet the members of our leadership team.

What we value

Our key values, developed through an employee-driven initiative, embrace the manner and mechanisms through which we operate and help ensure that the individual goals of our employees are achieved within the common goals of the firm. The key values reflect what Tatham Engineering, and more importantly our staff, believe are most important in providing our services.


Be responsive and take ownership
of our clients’ needs


Provide dependable
and quality service


Build strong relationships and
create clients for life


Be empowered to create innovative,
cost-effective solutions to
ensure client satisfaction and
to improve our company


Work as a team to effectively
use all of our resources to
ensure that the needs of our
clients and colleagues are met


Consistently and effectively
communicate with each other
and have input on all aspects
of each project we work on


Encourage each other
to continuously learn
and grow


Be professional in our
appearance and conduct


Understand the value of the
communities where we work
and actively participate
to strengthen them

What we’ve achieved

Award of Excellence from the Association of Consulting Engineering Companies – Ontario

Conservation Award from Lake Simcoe Region Conservation Authority

Sustainability Leadership Award from Sustainable Severn Sound

Service Excellence and Outstanding Contribution Award from CBRE

Building Initiatives Award from the Economic Developers Council of Ontario

Municipal Concrete Award from Good Roads

By the numbers

years in operation