Grainger Marburg is an ICF-credentialed leadership coach who works with clients from the nonprofit, corporate, and public sectors. As a former nonprofit leader (ED, CEO, and COO), he leverages his expansive knowledge of executive leadership, operations, strategic planning, organizational development, philanthropy, and education to design plans that specifically address client needs. Grainger works with established and aspiring leaders at all levels of an organization to drive strategic goals and foster a positive team environment. Other highlights of Grainger's experience include serving as a Peace Corps Volunteer in Micronesia and managing a comprehensive neighborhood improvement initiative in east San Jose, CA.  

Focus Areas

Each client is unique and requires a customized plan to achieve their goals. While there are some generic tools that can be helpful, Grainger tailors his approach to match a client's particular working style and needs. Coaching engagements are typically 10-12 sessions over 3-6 months; consulting contracts vary. Cost estimates are based on the length and complexity of a coaching engagement or consulting project. 

Leadership Development

Grainger’s experience as a chief executive and COO gives him a first-hand understanding of the complexities of leading an organization or team. He is adept at coaching how to successfully manage supervisors and boards as well as how to manage direct reports and teams. Grainger meets leaders where they are and tailors a plan to help them accomplish their personal and professional goals.

Organization & Staff Culture

An organization’s culture directly impacts staff buy-in and motivation. By helping professionals at all levels, Grainger focuses on nurturing a positive culture to strengthen staff morale, improve talent retention, and boost productivity. Grainger designs plans that are effective, relevant, and strategically aligned with a client's culture to help transition professionals into new roles, enhance team dynamics, strengthen core competencies, and change behavior. He guides individuals and organizations through transformative change to create engaging work environments.

Strategic Planning

Mapping strategic priorities and goals has been an inherent part of Grainger’s leadership experience. Understanding the need for both creative visioning and solid operational skills is what defines strong leaders and managers. Grainger can help clients develop the strengths they need to be both bold and pragmatic in their strategic planning. 

Education & Credentials

Grainger has a B.A. from Hampshire College and an Ed.M. from Harvard University. He is an ICF-credentialed coach and earned his integral coaching certification from New Ventures West.


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Grainger is an active listener. He made sure he fully understood the issues I wanted to address before he proposed a plan. The depth and scope of Grainger’s leadership experience enabled him to help me find the best strategic choices for my business. My business is thriving and I feel more grounded in my values as a result of working with Grainger.

Debbie, Founder and CEO, DEC

I highly recommend Grainger as a coach. He is warm, thoughtful and thought-provoking. I always look forward to my session with Grainger. He is able to strike a unique balance of careful listening with providing his experiences, wealth of ideas and insights. He is part strategist, part thought-provoker and part cheerleader. I appreciate that he knows just when to invoke one of these parts of himself to help you come to your own conclusion. If you are looking for someone to help you learn about yourself, make shifts or big changes, Grainger will help you get there. 

Jennifer, VP of Global Brand Marketing, Simpro Software

In our time together Grainger encouraged me to find my voice and build on strengths in the workplace. As I struggled with navigating a corporate setting with limited diversity, he redirected me to my core values and how I could use them to my advantage. Grainger challenged me to think outside of the box and color outside the lines. I thoroughly appreciated his ability to verbalize our demographic differences and still find ways to validate the challenges that I face daily. I am so grateful to have had the opportunity and pleasure to work with such a talented and grounded individual.

Erica, Outpatient Therapist

I highly recommend Grainger as a professional and supportive coach. His coaching style is empathetic and insightful, which helped me gain clarity on my goals and identify actionable steps to achieve them. Grainger’s  positive attitude and encouragement made me feel comfortable and confident throughout the coaching process. I appreciated his ongoing commitment to my growth and progress, and I have seen positive changes in my personal and professional life as a result of working with them. Thank you, Grainger, for helping me become the best version of myself!

Melanie, Faculty, University of Southern California (USC)