David Nairne + Associates partners with Dillon Consulting

David Nairne + Associates, a Vancouver-based architecture and planning consultancy, has entered a partnership with Dillon Consulting, a Toronto-headquartered engineering and environmental consulting firm.

Under the alliance agreement, DNA will continue to operate separately from Dillon Consulting.

DNA was founded in 1972 and has more than 50 employees. The firm provides planning, architecture, civil and structural engineering, and project management services to clients in Western and Northern Canada. DNA works with municipal, provincial, territorial, federal, non-profit, and Indigenous community clients.

“I am very pleased that we are now part of Dillon Consulting. Dillon is a proudly Canadian, 100% employee-owned, professional consulting firm. And they are a perfect fit,” said Andy Mill, DNA president and COO.

The partnership will expand Dillon’s architecture services practice to the West Coast. The firm in 2025 expanded its architecture practice into Atlantic Canada through a partnership with FBM Architecture.

“When we looked at DNA, we saw a firm that genuinely shares our passion for nation-building and community improvement projects,” said Sean Hanlon, CEO and president, Dillon. “We deeply respect the 50-year legacy of trust and loyalty DNA has built, and together we will continue to live our shared mission to elevate value every day for our clients.”

Dillon was founded in 1946 and has more than 1,100 employees across 25+ offices nationwide. The firm provides services in planning, management, engineering, and environmental science.