Cardinals Strike Out Cancer (Sun Prairie, WI) - Event Sponsor benefiting UW Carbone Cancer Center

Casting for Kids (Madison, WI) - Event Sponsor

Connections For The Homeless (Evanston, IL)

Filipinx American Student Organization (UW Madison) - Sponsor, "MFAS 2022 Convention"

Life Tools Foundation (Fox Valley, WI)

Madison Reading Project (Madison, WI)

Medical Center Foundation of Hartford (Hartford, WI) - Event Sponsor benefiting Medical Rides Program

Paul Davis Foundation (Madison, WI) - Event Sponsor benefiting Little Warriors Foundation

Play 4 Cade (Rubicon, WI) - Sponsor, "Play 4 Cade Youth Baseball Tournament"

REACH Wisconsin (Milwaukee, WI) - Annual Sponsor

River Food Pantry (Madison, WI)

Schauer Arts Center (Hartford, WI) - Sponsor, "Summer Courtyard Concert Series"

Sun Prairie Baseball Booster Club (Sun Prairie, WI)

Tellurian Substance Use and Mental Health Recovery (Madison, WI)

2021: Inaugural Year



Alzheimer’s Association – Wisconsin Chapter – Statewide Sponsor, “Walk to End Alzheimer’s”

Coaches vs. Cancer – Sun Prairie Event (Sun Prairie, WI)

Kathy’s Place (Milwaukee, WI)

Legacy Giving Tree (Deforest, WI)

Medical Center Foundation of Hartford (Hartford, WI) - Event Sponsor benefiting Medical Rides Program

Prairie View Teens in Action (Sun Prairie, WI)

Purple Heart Riders of Wisconsin – Sponsor, PHRA National Convention 

Sun Prairie Backcourt Club (Sun Prairie, WI)

Sun Prairie Children’s Museum (Sun Prairie, WI)

Sun Prairie Hockey Booster Club (Sun Prairie, WI)

Sun Prairie Youth Basketball Association (Sun Prairie, WI)

Sunshine Place (Sun Prairie, WI)

Tellurian Substance Use and Mental Health Recovery (Madison, WI)

TASO Foundation- Fore Autism Awareness Open (Sun Prairie, WI)

United for Waukesha Community Fund (Waukesha, WI)

UW Carbone Cancer Center (Madison, WI)

Prior to 2021



Since its existence, Greywolf Partners, Inc. has proudly supported numerous charitable organizations, efforts, and events throughout Wisconsin, including these entities in the Cottage Grove, Hartford, Madison, Milwaukee, and Sun Prairie communities:


2018 Sun Prairie Explosion/Disaster Relief

American Cancer Society

CARDS Closet

Children’s Hospital Foundation

Dane County Humane Society

Friends of Diabetes

Habitat for Humanity

Harvest in the Garden

Rainbow Project


Sacred Hearts School

Sunshine Place

Tellurian Substance Use and Mental Health Recovery

Sponsorships and Events

Booking It Walk/Run

Holiday Food Drive

Honey Creek Backpack Program

MDA Lock Up

Pink Pumpkin Walk/Run

Playground Warriors

Relay for Life Cancer Society

Ronald McDonald Food Prep Day

Senior Housing Facility Christmas Cards

Shelter for the Storm Ministries Gala Sponsor

Sock & Mitten Drive

Sunshine Place Gala Sponsor

Sunshine Suppers

Tellurian Golf Outing Sponsor

Youth and High School Sport and Music Programs for Band, Baseball, Basketball, Co-Ed Cheerleading, Golf, Hockey, Softball, Swimming and Diving, and Wrestling



C.A.R.D.S. Closet:

“Denise invited me to help her start C.A.R.D.S. Closet, a free clothing resource for Sun Prairie Area school families, from the start, as a project to teach our children about giving back to the community. We began as a storage shed and have evolved to a storefront, a donation bin, and working relationships with local emergency services. The growth of C.A.R.D.S. Closet exemplifies how Denise and Joe serve the community through their generosity and time. They involve their many friends and associates, giving others the opportunity to serve and improve our community. I look forward to watching the growth of the Greywolf Foundation, because I am confident it will progress with the vision, love, and excellence with which Joe and Denise lead their lives.”

Kathleen O’Shea

Co-Director, C.A.R.D.S. Closet



Sunshine Place:

"Joe and Denise Wagner, along with Greywolf Partners, have been tremendous supporters of Sunshine Place for many years.  This includes serving as founding members and leaders of C.A.R.D.S. Closet, which provides clothing and personal care items to youth in our community.  The Wagner Family truly embodies a spirit of selfless giving back to their community.  The Greywolf Foundation is a natural extension of this philanthropic determination and will provide an even greater impact for mission-driven organizations in our community."


Ann Maastricht

Executive Director, Sunshine Place