With Manitoba roots that run more than 130 years deep...

Thompson Dorfman Sweatman LLP (TDS) has long been recognized as a leading full-service law firm dedicated to serving clients and delivering high quality work. We believe that collaboration is essential to providing outstanding professional service, and our collegial workplace fosters greater teamwork, responsiveness, and communication, providing better results for clients.

Working together with a shared vision, we are devoted to serving our valued clients. When we’re retained, we will refer you to the TDS lawyer with the ideal level of experience in your field, or alternatively, a legal team will be assembled to work towards a suitable solution. We aim to deliver a full-service firm that makes our team, our clients, and those who aspire to join us feel that they are free to lead.

We live our values through the work we provide to our prospective and current clients and ensure it is part of our firm’s culture and core values.


Everything we do will be done with integrity and we will do everything we can to support a high standard of ethical behaviour;

Good Corporate Citizenship

We will do our part to be a good corporate citizen that is mindful of its responsibility to make a positive contribution to Manitoba and Canada;


We will treat everyone we deal with fairly, including the people who work here;

Mentorship and Training

We will be true to our obligation to mentor and train those who work here;


We want to work in an atmosphere of collegiality and are committed to promoting a respectful work environment;

Value our History 

We will celebrate the history of our firm and see ourselves as trustees and stewards of that legacy which forms the foundation for planning our future;


We value diversity and will strive to reflect the communities we serve;

Community Minded 

We will be engaged in the communities in which we live and work. Across our ten Manitoba offices, and our Saskatchewan office, we give back and are mindful of the responsibility to make a positive contribution to our local communities. Learn more here;

Client Focused Work

We will strive to deliver work product that is of a quality we can be proud of and that meet our clients needs and we will have in place the necessary tools to support that;

Invested in Success 

We value hard work, participation in legal organizations, and maximizing our profitability, but we will be a workplace that can reasonably accommodate the various stages of people' lives and careers and special needs that may arise;


Our History

In 1887, construction of the Eiffel Tower started in Paris, Queen Victoria celebrated her Golden Jubilee in London and two lawyers from Winnipeg founded a law firm that would become known for reliability. Even though the world around us has changed significantly since we started, it’s safe to say that after 130 years, some things have only gotten better.

We thank our clients and the community that we serve. Without you, we wouldn’t have become one of Manitoba’s trusted names in law.

Learn more here.

Exclusive Service Offerings Lex Mundi - Global Reach.

As part of the Lex Mundi global network, we can provide our clients with preferred access to more than 21,000 lawyers around the world – all from a single point of contact.

Learn more here.

Community Minded

The lawyers and staff at Thompson Dorfman Sweatman LLP recognize the importance of supporting the community in which they work, live and play. Each year TDS contributes over $250,000 to worthwhile community initiatives that support the Arts, the Environment, the advancement of medical care, and the advancement of technology.

Here are some of the causes we support:

  • Children
  • Education & the Arts
  • Health & the Environment
  • Business
  • Entrepreneurship & Community
  • Learn more on our In The Community webpage.

Learn more here.

Additional Services

TDS is committed to providing our valued clients with new services and to being progressive when it comes to adopting new technology.

Our file-sharing services employ secure data synchronization and sharing platforms utilizing bank-level encryption technology. They work like public cloud services, making shared documents available on your desktop PC or Mac, through your smart phone, or through any web browser..  Our video conferencing services allow our clients and lawyers to meet face-to-face without having to leave their office, reducing time away from the office and away from family.

Learn more here.

Accolades, Awards and Recognition

The firm has been recognized by LEXPERT® on numerous occasions as being the leading corporate law firm in Manitoba.

TDS has also been ranked and recommended by Chambers Global, Benchmark Litigation and recognized as one of the top regional firms in the prairies by Canadian Lawyer Magazine.

In addition, several of the firm’s lawyers have been recognized by Best Lawyers® in Canada and LEXPERT® as leaders in their respective practice areas.

Learn more here.

Art Collection

"An office with more meeting space frees our people up to be better leaders and collaborators,”
- TDS CEO and managing partner Keith LaBossiere

Every day our clients and staff are inspired by made-in-Manitoba art all around them, including indigenous art and pieces from the Winnipeg Art Gallery’s Inuit collection. Featured below are some of those pieces.

Learn more here.

Women in Leadership

Our belief is that inclusion should not only be part of the conversation about our core values but also strategically practised through policy. We live our values through the work we provide our prospective and current clients to ensure it is part of our firm’s culture and core values.

Learn more here.