


Mary Tweten
Founder of Mary & Mac Design
Hello, I'm Mary
I’m the founder of Mary & Mac Design, a creative studio specializing in website design, branding, and communications support for small businesses, nonprofits, community organizations, and political campaigns.
Based in Canada and serving clients remotely across North America, I bring more than 25 years of experience helping leaders and organizations communicate effectively, build meaningful connections, and bring their ideas to life. My background spans communications, branding, design, project management, and marketing, giving me a unique perspective on how organizations connect with their audiences and achieve their goals.
Throughout my career, I’ve worked with global executives, multinational corporations, community groups, and campaign teams, providing website design, brand identity development, social media content, event promotion, and marketing materials. I enjoy helping clients transform ideas into polished, professional communications that make a meaningful impact.
What sets me apart is the combination of strategic thinking and creative execution. Whether I’m designing a website, developing a brand identity, or supporting a communications campaign, I focus on understanding each client’s goals and delivering solutions that are both visually compelling and effective.
I believe great design is about more than aesthetics. It should tell a story, build trust, and help organizations connect with the people they serve.
As a dual citizen of Canada and the United States, I’ve lived and worked on both sides of the border. Before returning to Canada, my professional journey included supporting leadership teams within some of New York City’s largest corporations. Those experiences shaped my approach to communication, problem solving, and client service. Today, I combine decades of corporate experience with a passion for creative design to help clients tell their stories with clarity, confidence, and impact.
When I’m not designing or creating content, you’ll find me researching family history, restoring old photographs, spending time with family, or exploring new creative projects. Genealogy has been a longtime passion of mine, combining historical research, storytelling, and problem solving in much the same way that effective communications and design do.
A FOUNDATION BUILT ON EXPERIENCE.
2001 - Present
2024 - Present
2009 - 2024
2004 - 2008
2002 - 2004
1993 - 2002
Founder & Creative Director
Mary & Mac Design | St. Catharines, ON
Provides website design, branding, marketing materials, and communications support for businesses, nonprofits, community organizations, and political campaigns throughout North America.
Communications Director
Lindner4Delaware Campaign | Millsboro, DE
Leads campaign communications, website development, branding, social media content, fundraising materials, public outreach, and community engagement initiatives.
Executive Assistant to Global Leadership
GfK / NIQ | Nürnberg, Germany + New York, NY
Developed executive communications, presentations, board materials, and strategic reports while supporting C-suite executives and global leadership teams.
Executive Assistant to the President, Americas
Leggett & Platt Automotive Group | Lakeshore, ON
Managed executive communications, international projects, presentations, events, and stakeholder engagement across global teams.
Office & Marketing and Research Manager
Deloitte | Windsor, ON
Led marketing initiatives, branding activities, market research, business development support, event planning, and internal communications.
Executive Assistant, M&A Media & Telecom Presentation Specialist & Administration Supervisor
Morgan Stanley | New York, NY
Supported senior leaders within Morgan Stanley’s Mergers & Acquisitions Media & Telecom Group, managing executive communications, high-profile client interactions, strategic presentations, and complex project coordination. Developed corporate presentations, marketing materials, newsletters, and client-facing communications while overseeing administrative operations and staff management within a fast-paced investment banking environment.