S.L. Helwig & Associates is proud to have worked with many different clients over the years, including such organizations as:
- Alberta Foundation for the Arts
- Art Gallery of Hamilton
- Arts Network for Children and Youth
- ArtsWest
- Associated Designers of Canada
- Canada Council for the Arts
- Canadian Conference of the Arts
- Canadian Museums Association
- Cultural Human Resources Council
- CultureNet
- Etobicoke Board of Education (now part of the Toronto District School Board)
- Guild of Canadian Film Composers (now the Screen Composers Guild of Canada)
- Ontario Arts Council
- Ontario Association of Art Galleries
- Opera Hamilton
- Periodical Writers Association of Canada (now the Professional Writers Association of Canada)
- San Francisco Museum of Modern Art
- TheatreBooks Ltd.
- Theatre Museum Corporation (now Theatre Museum Canada)
- Toronto Arts Foundation
- Visual Arts Centre of Clarington
Through contracts with other companies (such as CultureNet), S.L. Helwig & Associates has also worked closely with organizations such as:
- Canadian Music Competitions – Ontario
- CBC Infoculture
- Department of Canadian Heritage
- Newfoundland and Labrador Arts Council
- Ontario Ministry of Citizenship, Culture and Recreation (now Ministry of Tourism, Culture and Sport)
