Helping innovative, mission-led companies grow with smart, impactful strategies.
mersea strategy
Our most popular services
At Mersea Strategy, we offer flexible and customized services, adapted to what you and your team really need.
Social Media Management
We help you show up with purpose and consistency. From content strategy and creation to scheduling, engagement, and analytics, we manage your social presence so you can connect with your audience and grow your brand—without the overwhelm.
Business Operations
We streamline your operations so you can focus on what matters most. From process optimization and team structure to systems implementation and workflow design, we help purpose-driven businesses run smoother, scale smarter, and work more efficiently.
What our clients say about us
“Marianne was a driving force at Whale Seeker, bringing unparalleled expertise in policy, grant work, and business support, all grounded in a deep understanding of the ocean economy and blue tech innovation. Her ability to navigate complex regulatory landscapes and secure critical funding was instrumental in helping us scale our impact in the blue economy space. What makes Marianne exceptional is her strategic vision and her knack for aligning innovative ideas with actionable solutions that drive growth and sustainability.
She’s a true partner for businesses looking to make waves in the ocean sector, whether through securing grants, shaping policy, or providing strategic business support. If your organization is part of the blue economy or ocean tech space and you’re seeking someone to elevate your efforts, Marianne is the expert you want on your side.”
- Emily Charry Tissier, CEO and Co-founder of Whale Seeker
