LAWYER PROFILE
Timothy Cullen

Timothy Cullen

Canada 2026

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Ranked in 1 practice area

About

Provided by McMillan LLP

Practice Areas

Timothy is a skilled regulatory advocacy and advisory lawyer and commercial litigator known for his practical advice for clients dealing with government. He is a co-leader of McMillan’s Procurement and Government & Public Policy practices. He advises both buyers and suppliers of goods and services, especially in public procurement. When acting for public sector clients, Timothy has designed solicitations for complex acquisitions and advised on compliance with trade treaty procurement obligations and procurement statues and policies. For organizations in the academic, health and social service sectors, he has written procurement policies and managed the complete redevelopment of procurement processes and documents. When acting for private sector clients, he has counseled suppliers on bidding and contracting for some of the most significant recent public procurement processes in Canada, including major defence acquisitions. Timothy represents clients in procurement challenges before the CITT and in procurement-related litigation in courts across Canada. He writes and speaks often about procurement, especially the intersection between procurement and Canada’s integrity laws and policies. A former Parliament Hill political staffer, Timothy also serves as a Senior Advisor and General Counsel at McMillan Vantage, a full-service, national public affairs firm affiliated with McMillan LLP.

Chambers Review

Provided by Chambers

Chambers Canada Guide

Public Procurement - Nationwide - Canada

Band 3
Band 3

Individual Editorial

Timothy Cullen is co-leader of McMillan’s procurement and government & public policy groups. He notably supports his clients with varied procurement matters, including those related to goods and services and construction projects. He is based in Ottawa.

Strengths

Provided by Chambers

  • Tim's professionalism and ability to take the angst out of the room is very good. He is very practical and that stood out to me. He is efficient, cuts to the chase and gives sound advice.

    Public ProcurementChambers Canada Guide
  • Tim is great. He is professional, knowledgeable, respectful and committed.

    Public ProcurementChambers Canada Guide
  • Tim is a superstar.

    Public ProcurementChambers Canada Guide
  • He did an outstanding job for us reviewing a bid submission.

    Public ProcurementChambers Canada Guide

Ranked Individuals at McMillan LLP (77)

Nationwide - Canada

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