Senior Client Manager

About Anthesis: Anthesis is the sustainability activator. Proud to be a B Corp, we seek to make a significant contribution to a world which is more resilient and productive. We do this by working with cities, corporates, investors and other organisations to drive sustainable performance. We develop financially driven sustainability strategies, underpinned by technical expertise and delivered by innovative collaborative teams across the world. At Anthesis Group, we are truly committed to putting people and our planet at the heart of all we do. Summary of Role & Key Responsibilities We are looking for a Senior Client Manager to support our growing North American team, which supports Anthesis’ global offerings by bringing innovative sustainability solutions to clients. As part of the North America team, your role will be client-facing and you will be providing clients with actionable insights to inform their sustainability strategy, goal setting, program implementation and reporting and communications activities. This includes the full scope of sustainability topics organizations may face, environmental, social and governance, from operations to supply chain. Your projects and clients will span across a diverse set of industries, ranging from Fortune 500 companies to boutique brands, and require engagement with clients, their suppliers, and their various stakeholders (employees, investors, associations and NGOs) around the world. Key Responsibilities: Lead client engagements across the full lifecycle, from initial needs assessment to delivering measurable impact. Build and direct cross-functional teams to ensure high-quality client delivery and outcomes. Partner with clients to identify, frame, and address opportunities for sustainable performance improvement. Guide clients through strategic, structural, operational, and management transformations to achieve lasting results. Facilitate executive and cross-functional alignment to secure buy-in and resources for successful implementation. Oversee research and analysis efforts, including data collection, synthesis, and interpretation to inform decision-making. Conduct interviews with key stakeholders, including employees and leadership, to uncover insights and validate findings. Design and lead workshops to foster collaboration and co-create solutions. Diagnose organizational challenges, develop hypotheses, and formulate actionable solutions. Prepare compelling business proposals and deliver strategic recommendations to client leadership. Support implementation of solutions, ensuring clients have the tools, guidance, and support needed for success. Lead and mentor project teams, including analysts and consultants, to drive performance and professional growth. Serve as a trusted advisor to clients, building strong relationships and ensuring alignment throughout the engagement. Key Requirements & Skills, Knowledge and Expertise 8+ years’ experience in an inhouse sustainability practitioner role, management consultancy, or client management in technical or specialist sustainability consultancy Experience working at, and navigating all levels of an organization, driving decisions and direction through influence, including C-suite executives and senior business stakeholders Experience working in teams, and leading teams Excellent interpersonal and communication skills, both oral and written Problem-solving and strategic planning capabilities Analytical skills Flexibility in mindset and approaches Commercial awareness and understanding of business environments Benefits Comprehensive and competitive group health, dental, and vision insurance plans for you and your dependents FSA (Flexible Spending Account) benefit (US only) Anthesis provides 100% Basic and Voluntary Life Insurance and Accidental Death and Dismemberment (AD&D) Insurance benefit. In addition, Anthesis covers 100% of Short & Long‐Term Disability Insurance benefits. Anthesis provides a 3% contribution into retirement plans, and you may elect to contribute more each pay period with a pre‐tax deduction up to a certain cap. Anthesis provides Employee Assistance Program and Travel Insurance Annual allotment of PTO, in addition to 56 hours of sick leave, paid company paid holidays, and more. Work within a highly motivated team in an innovative and rapidly growing global company. Opportunity to have a direct impact and be a key part of the growth and development of the business and the team. Work collaboratively on projects that have an impact on the sustainability and climate change goals/challenges for clients. Opportunity to work alongside of, collaborate with and learn from sustainability Subject Matter Experts (SME) who are passionate about the work they do and the impact Anthesis can have.