About us
Mersea Strategy LLC was founded by Marianne Brisson with a clear mission: to support, uplift, and empower innovative entrepreneurs and small organizations working toward a better future. Recognizing the challenges of managing a growing business or nonprofit, we step in to lighten the load, allowing you to focus on what truly matters—expanding your impact on people and the planet. From social media management and strategic communications to grant research, writing, and reporting, we tackle the behind-the-scenes work that keeps your organization running smoothly. Whether you need help navigating funding opportunities, crafting compelling content, or ensuring your initiatives reach the right audience, Mersea Strategy provides tailored support to help you and your team accomplish more.
Meet Marianne
Marianne Brisson is a skilled professional with a deep passion for helping small businesses and organizations in the ocean, climate, and environmental sectors thrive. With a strong background in business operations, policy analysis, strategic recommendations, and communications, she understands the complexities these industries face and provides tailored solutions to ease the burdens of navigating funding, regulations, and communications. Growing up on the Gaspé coast, next to the ocean, she developed a deep appreciation for the natural world and its preservation.
Her approach is rooted in a commitment to intentional growth—helping businesses expand their impact while staying true to their mission. Marianne’s expertise spans social media management, strategic planning, funding research, and reporting, offering clients comprehensive support so they can focus on what matters most: making a meaningful difference for people and the planet. With her collaborative, detail-oriented approach, she ensures that every step is aligned with long-term goals, empowering clients to grow sustainably and effectively.