Corporate Guardians

Corporate Guardians give Clean Wisconsin the resources necessary to continue our important work for Wisconsin’s environment. If you own a business and share in our mission, please join our Corporate Guardians program. This is an excellent investment in your business as you support our work for clean air, clean water and the places that make Wisconsin great for future generations!

Madison Magazine

Hoyos Consulting

Think Ink and Design

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Bailey's Greenhouse guardian4-ThompsonInvestment

Become a Corporate Guardian

Find information on our sponsorship levels and benefits here.

All sponsorship donations to Clean Wisconsin are tax-deductible to the full extent of the law.

Why Thompson Investment Management Supports Clean Wisconsin


“Good investors know that the decisions they make today will impact their long-term results. With this in mind, Thompson Investment Management supports Clean Wisconsin and their investment in protecting and preserving our state’s important natural resources, air and water, for the benefit of future generations.”

—Jason L. Stephens, CFA, Thompson Investment Management, Inc.