Our Team

Achieving sustainable impact looks different today.
It requires a different methodology and a new tool set. 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 Steve Strang, Senior Consultant, Practice Director Crystel Anders, Consultant

Shelly Schnupp, Consultant Jeremy Ault, Analyst Lauryn Burkhalter, Engagement Manager

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 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 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, Spectrum Nonprofit Services

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 which is the State Association of Nonprofits (IL); was a federal grants trainer with the University of Chicago; and managed membership and training coordination 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.

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 additional 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 for the National Alliance for Choice in Giving.  Crystel holds an MSSW from University of Wisconsin-Madison and received her BS from Carroll University in Waukesha, Wisconsin.

Schnupp for web

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.

Jeremy Ault

Jeremy Ault, Analyst

Jeremy Ault, MA, is an Analyst at Spectrum Nonprofit Services where he assists in the delivery of management consulting and training services for community based organizations.  Jeremy currently serves as a board director for the global development and aid organization Diaconia Connections, and is a member of the Education Board and Plymouth Justice Network at the Plymouth United Church of Christ (WI).  Prior to his work with Spectrum, he was the Head of the Department of International Development for Diaconia ECCB – Center of Relief and Development (CZ, WI) and spent time as a Transition Specialist at the Adult Learning Center of Milwaukee, WI.  Jeremy came to Milwaukee, WI as a Trinity Fellow at Marquette University where he earned his MA in Global History and received the Prucha-Theoharis Award for excellence in History.  He has extensive international experience and has given public lectures on human trafficking, refugee care, global development in post totalitarian societies, among others.  He earned his BA in History at Waynesburg University (PA).

Lauryn Burkhalter, Spectrum Nonprofit Services

Lauryn Burkhalter, Engagement Manager

Lauryn Burkhalter, MA is an Engagement Manager with Spectrum.  Lauryn coordinates Spectrum’s training, business development, and consulting initiatives and oversees Spectrum’s marketing, branding, and communications efforts.  She is a graduate of the Trinity Fellows Program at Marquette University with an MA in Communications and a Certificate in Digital Storytelling.  She earned a dual BA in Environmental Studies and French Literature in 2009 and a certificate in Paralegal Studies in 2011 from Loyola University Chicago.

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