Fractional Sustainability Leaders Collective
A collective of seasoned sustainability leaders – ready to integrate, execute, and lead.
Our Mission
The FSLC elevates fractional sustainability leadership as a trusted, business-driven approach to sustainability.
We strive to:
Champion fractional sustainability leadership as a strategic, results-driven profession.
Be the trusted hub where businesses find sustainability leaders to drive immediate and long-term impact.
Define excellence in the field of fractional leadership.
Foster a high-caliber, supportive, community for sustainability executives.
The fractional model gives businesses new ways to integrate sustainability leadership.
What is a Fractional Sustainability Leader?
A Fractional Sustainability Leader (FSL) brings senior-level sustainability expertise to companies that need strategic leadership—without the commitment of a full-time hire. With executive-level accountability, an FSL embeds within a company and rolls up their sleeves to develop and implement sustainability strategies, engage leadership teams, and drive real impact—all while working in a part-time yet high-impact capacity.
What Defines an FSL?
Deep sustainability expertise—previously led sustainability at a senior level.
Executive leadership experience—trusted by C-suite teams to align sustainability with business goals.
Hands-on strategic partner—more than a consultant, an FSL embeds within a company to implement solutions and create lasting change.
How They Work
Senior-level leadership and accountabilities, fractional engagement—works part-time but acts full-time.
Collaborates across teams—engages executives, directs staff, and leads key initiatives.
Leads with action—fully invested in the work, handling both strategy and execution.
Long-term impact—typically works under an extended contract to build sustainable progress.
Some call it a Fractional Chief Sustainability Officer (CSO), but Fractional Sustainability Leader is an important distinction to our collective. Not all companies need a C-suite hire—but every company can benefit from senior-level sustainability leadership that drives real results.
How do I find and engage a Fractional Sustainability Leader?
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1) Explore Our Members
Browse the FSLC member directory to find seasoned, peer-vetted sustainability leaders with expertise that matches your industry, challenges, and goals.
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2) Reach Out Directly
Contact members individually to discuss your needs, or connect with FSLC for guidance.
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3) Define Your Needs
Initial conversations will focus on your company’s sustainability priorities, pain points, and leadership gaps, ensuring the right fractional model for your needs.
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4) Engage & Get Started
Once you’ve identified the right FSL, you’ll define engagement terms, leadership scope, and integration steps—with a focus on impact from day one.