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Monday 8:30am - 5pm Tuesday 8:30am - 5pm Wednesday 8:30am - 5pm Thursday 8:30am - 5pm Friday 8:30am - 5pm

Tatham Engineering

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Canada
Collingwood, ON
Tatham Engineering

Multidisciplinary Civil, Electrical & Mechanical Engineering Consulting Firm serving Simcoe County, Muskoka, Guelph & Ottawa

Tatham Engineering is a Canadian employee-owned consulting engineering firm dedicated to enhancing the communities we live, work and play in. We specialize in Coastal, Land Development, Municipal, Structural (Buildings and Bridges), Transportation, Water Resources, Water & Wastewater, Electrical and Mechanical engineering, and provide specialized services in Air & Noise, Climate Resilience and Hydrogeology.

05/12/2026

We’re proud to announce two well‑deserved promotions strengthening Tatham’s Land Development team. 🎉

➡️ Nick Millington has been promoted to Vice President – Land Development, where he will help guide the strategic direction of our land development services across Central Ontario.

➡️ Lisa Cowan has been promoted to Manager – Land Development, stepping into Nick’s former role. She will support regional teams and projects with her deep technical expertise and practical leadership.

Together, these promotions position our Land Development team to continue delivering strong leadership and trusted expertise for our clients and communities.

Please join us in congratulating Nick and Lisa on these well‑earned achievements. 👏

05/08/2026

🏆 A proud night for Tatham!

Last night at the Ontario Engineering Project Awards, we were honoured to bring home two awards recognizing both the impact of our work and our commitment to the communities we serve.

🌱 Municipal Impact Award
Demonstrating the power of regional collaboration, our Muskoka Area Municipalities Decarbonization project brought six northern municipalities together to create a shared roadmap toward climate action. As a result, all six municipalities committed to cutting corporate greenhouse gas emissions by 45% by 2030 and achieving net‑zero by 2050.

💙 Humanitarian Award
This award reflects our long‑standing commitment to giving back, inspired by our founder, Charlie Tatham. Through volunteer programs, employee‑led fundraising, and our new Corporate Giving Program, we support healthcare, local charities, and community initiatives across Ontario.

Congratulations to Elham Gorouhi and the entire project team at Tatham, and thank you to our municipal partners in Bracebridge, Gravenhurst, Huntsville, Lake of Bays, Muskoka Lakes, and Georgian Bay for trusting us with this project.

A big shout‑out as well to Tatham’s volunteers and employee‑led fundraising teams, whose passion and dedication continue to raise the bar and demonstrate the meaningful impact we can make beyond our project work.

05/06/2026

A strong lineup of upcoming projects has us thoughtfully growing our team. We’re looking for experienced engineers and project managers to help lead and deliver work that shapes communities across Ontario.

🔹 Structural Engineer — Bridges | Guelph, ON
🔹 Engineer, Project Manager — Municipal | Bracebridge, ON
🔹 Engineer, Project Manager — Transportation | Collingwood, Barrie, Guelph, Ottawa, ON

If you're motivated by meaningful infrastructure projects and value collaboration, accountability, and community impact, we'd love to connect.

➡️ Links to each posting can be found in the comments!

04/30/2026

We are proud to announce that Beaudoin Construction has been awarded the Lucan Wastewater Treatment Plant Expansion project, located near London, Ontario.

This significant municipal infrastructure project marks another key milestone in our continued growth across Ontario and further strengthens our position in the water and wastewater sector.
It is a privilege to contribute to essential infrastructure supporting the Township of Lucan Biddulph and its community.

We are pleased to be working alongside a strong group of partners, including the Township of Lucan Biddulph, Ontario Clean Water Agency (OCWA), B.M. Ross and Associates Limite, Tatham Engineering, GRIT Engineering Inc., and Eramosa Engineering.

We look forward to delivering this project with the rigor, collaboration, and excellence that define our work.

04/29/2026

Next Thursday at NextWave 2026 (OWWA Conference), Emily Park from our Water & Wastewater team will co present with Ben Lightbown from the Town of New Tecumseth on Town’s Water Loss Control Program.

Tatham developed and implemented a tailored approach to make the best use of the Town’s resources to control and manage the water losses. This resulted in reduced losses and steady return on investment!

If you manage water infrastructure or are considering a water loss control program, this session offers practical perspective on turning non-revenue water data into measurable results.

Come find us in Room 225.
📍 NextWave 2026 | Niagara Falls
📅 Thursday, May 7 | 2:45 PM | Room 225
🔗 Session Info: Link in comment

04/22/2026

This Earth Day, we're looking back at projects that protect, restore, and work in harmony with the natural world — supporting ecosystems, safeguarding water quality, and planning responsibly for future generations. 🌎🌿

From projects that protect species at risk and stabilize vulnerable shorelines, to innovative approaches that reduce erosion, improve aquatic habitat, and limit nutrient loading in sensitive watersheds, environmental stewardship is built into our work.

Click through the photos to explore a few examples of how sustainability, conservation, and resilience are integrated into our projects 👉

04/21/2026

We’re Expanding Our Construction Leadership in Bracebridge!

Last year, we launched Tatham's construction department. Now, as demand grows, we're strengthening our oversight and capacity. Mark Walker, P.Eng., PMP joins us as Group Leader – Construction to lead our territory-based CA/CI team and ensure we're delivering full-service support across every project phase.

With 15+ years in infrastructure project delivery across municipal, provincial, and private sectors, Mark brings deep expertise in construction administration, inspection, contract management, and risk mitigation. He'll lead a territory-based CA/CI team, providing technical guidance and working with Project Managers to ensure consistent delivery across the full project lifecycle.

This hire reflects Tatham’s continued investment in the Muskoka and Central Ontario region. Mark's addition strengthens our capacity to support clients from design through construction completion.

Welcome to , Mark!

04/15/2026

Growth, recognition, and a new chapter in Guelph.

Tatham Engineering was announced today as a Top Employer in Southwestern Ontario, recognizing our Collingwood and Guelph offices for their people first workplace culture.

The timing couldn’t be better. Just two years after opening our Guelph office, we’re already preparing to move into a new space more than twice the size of our current office. Beginning May 1, our new location at 546 Governors Road will be home to our growing team as we welcome new disciplines, new colleagues, and new opportunities.

Bonus! 🏣 The new space has a big, beautiful back patio, which we’re already looking forward to using for barbecue lunches and team gatherings this summer!

Thank you to everyone in Collingwood, Guelph, and across Tatham for continuing to build something special in each of our communities.

🔗 Curious what makes Tatham a Top Employer? Explore our profile to see the people-first practices behind the recognition.

04/14/2026

Meet Sam Horton, Tatham Engineering's new Manager of Learning & Development!

In a world where technical skills evolve faster than ever, how do you keep your team ahead of the curve?

You hire someone like Sam — a strategic, people-focused leader with experience building learning & development from the ground up.

Sam’s role strengthens the connection between learning and the work we do every day, building programs grounded in real projects, measurable outcomes, and continuous improvement.

What this means for Tatham:
✔️ Stronger alignment between learning, project delivery, and client expectations
✔️ Scalable development using modern tools, data, and learning technology
✔️ Clearer pathways for technical growth, leadership development, and long term careers

Welcome to Tatham, Sam! ✨

We can’t wait to see how your perspective helps shape the way we learn, grow, and work together.

04/10/2026

Building Big in Bracebridge!

We’re expanding our office—and our team—as we continue to invest in Muskoka for the long term.

Tatham has been proud to serve the Muskoka region for almost three decades. This office expansion is our way of deepening those roots: growing our team, our space, and our capacity to deliver for the communities we work in every day.

is well underway on a new addition that will double our space from 3,000 to 6,000 sq. ft., making room for more offices, more workstations, and more disciplines to call home.

We’ll be moving into the new space this summer and we're already looking for more team members to fill those brand-new desks. If a career in the heart of cottage country sounds like your kind of next chapter, we'd love to hear from you.🌲

Address

Head Office/115 Sandford Fleming Drive, Suite 200
Collingwood, ON
L9Y5A6

Opening Hours

Monday	8:30am - 5pm
Tuesday	8:30am - 5pm
Wednesday	8:30am - 5pm
Thursday	8:30am - 5pm
Friday	8:30am - 5pm

Website

http://www.tathameng.com/

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