Our Team

Achieving sustainable impact looks different today.
It requires a different methodology and a new toolset. We provide the tools and support system that create a framework of sustainability.

Spectrum Nonprofit Services is a tight-knit team of nonprofit sustainability experts based out of Milwaukee, Wisconsin that believes in the power of evolving from a strategic plan to thinking and operating strategically. Let’s get acquainted.


Steve Zimmerman, Principal

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Shelly Schnupp, Consultant CA cropped



 Steve Zimmerman

Steve Zimmerman, Principal

Steven D. Zimmerman, CPA, MBA is the Principal of Spectrum Nonprofit Services where he provides training and consulting in the areas of finance and strategy for community-based organizations, foundations and government agencies throughout the country.  Steve is a co-author of the book The Sustainability Mindset: Using the Matrix Map to Make Strategic Decisions published by Jossey-Bass with Jeanne Bell of CompassPoint.  They also co-wrote Nonprofit Sustainability: Making Strategic Decisions for Financial Viability with Jan Masaoka of Blue Avocado in 2010.  The books highlight Spectrum’s integrated approach to nonprofits which balances mission impact and financial viability.  Steve also writes the Finance and Strategy column for Blue Avocado, an online magazine for nonprofits with 60,000 subscribers, and has also written for The Nonprofit Quarterly and Board Source.  Prior to starting Spectrum, Steve was a Projects Director with CompassPoint Nonprofit Services, one of the nation’s leading nonprofit consulting, training and research providers where he led the development of their business planning framework, wrote and delivered training’s and consulted on management issues with a wide range of organizations.  Steve’s extensive nonprofit experience includes serving as a Chief Financial Officer, Development Director and Associate Director at community-based nonprofits where he performed turnarounds resulting in increased financial sustainability and programmatic reach.  He is a Certified Public Accountant and earned a BA from Claremont McKenna College and an MBA from Yale University.

Steve Strang, Senior Consultant, Practice Director

Steve Strang, MPA is a Senior Consultant, Practice Director with Spectrum Nonprofit Services where he provides consulting and training in sustainability strategies for community-based organizations.  Steve’s experience within the nonprofit field includes fundraising and development training, managing outreach and membership, and leadership development.  He is an advisory board member at the Axelson Center for Nonprofit Management at North Park University (IL) and the nonprofit Allow Good.  Previously, Steve worked with Donors Forum (Forefront) which is the State Association of Nonprofits in Illinois; was a federal grants trainer with the University of Chicago; and managed membership and training with the American Red Cross.  He earned his BS from Grand Valley State University and MPA from Roosevelt University, both with an emphasis in Nonprofit Management.

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Chris Fink, Associate

Chris Fink is an Associate at Spectrum Nonprofit Services where he focuses on business development and management consulting. Prior to joining Spectrum, Chris served as a Coalition Manager for a Washington DC-based nonprofit patient advocacy group that organizes policy-minded health care stakeholders including physicians and patients. After graduating from Vanderbilt University, where he studied Secondary Education and History, Chris taught social studies at a high school in Southeastern Wisconsin and participated in several district-wide pilot programs in curriculum design and assessment.

Crystel Anders Spectrum Nonprofit Services Consultant

Crystel Anders, Consultant

Crystel Anders, MSSW, is a Consultant with Spectrum Nonprofit Services where she provides consulting and training for community-based organizations around impact and impact strategy.  Crystel has over 25 years of experience in organizational planning, fund development, staff training and development, strategic planning and board management. Crystel has held executive positions in multiple organizations, most recently as the Executive Director of Community Shares of Wisconsin, a grassroots fundraising organization that provides funding and technical assistance to over 66 member nonprofits. Crystel has provided training for funding coalitions in multiple states and has also led strategic planning for a number of organizations in Wisconsin.  In addition to her successful career with Community Shares of Wisconsin, Crystel was a founding board member of the Wisconsin Nonprofits Association.  She served as Board President for the Community Shares USA National Coalition and is an advisory board member for the Morgridge Center for Public Service.  Crystel was a board member and officer of the National Alliance for Choice in Giving.  Crystel holds an MSSW from the University of Wisconsin-Madison and received her BS from Carroll University in Waukesha, Wisconsin.

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Shelly Schnupp, Consultant

Shelly Schnupp’s work in nonprofit planning and administration spans over twenty-five years and includes work with local, regional and national nonprofits, including YWCA.  Schnupp specializes in nonprofit organizational and board capacity assessment; strategic and organizational planning and performance measurement; program analysis, development and outcomes measurement; and aspects of nonprofit governance and management.  She has designed tools and delivered training on these topics and is affiliated with Spectrum Nonprofit Services where she contributes her expertise and benefits from the skills of colleagues.

Schnupp has a Master’s Degree in Public Administration from the University of Illinois and has earned a Graduate Certificate in Nonprofit Management from the University of Wisconsin-Milwaukee.  She works to bridge research and community practice, benefiting students and Milwaukee-area nonprofits that are seeking information and tools to improve their work.  She currently serves as the Associate Director for the Helen Bader Institute for Nonprofit Management at UWM and as board president of the Wisconsin Nonprofits Association and the Wisconsin Community Health Fund.


Spectrum Nonprofit Services Consultant Network
The Spectrum Network is a group of consultants who share a desire to work and learn together while helping community-based nonprofits deliver on mission impact. Every consultant brings a different content expertise to the group which provides seamless collaboration to better serve client needs. The Network also provides a feedback and brainstorm loop to address challenges of the nonprofit sector and deliver solutions in a cost-effective and efficient manner.

Spectrum Nonprofit Services Consultant Network is made up of:

Consultant Area of Expertise Company Name/Website
Frank Martinelli Board Development
Strategic Planning
Center for Public Skills Training
Mindy Lubar Price Executive Transitions
Leadership Development
Leading Transitions
Mary Unkel Organizational Planning
Board Development
Unkel Management and Marketing Solutions, LLC