🛡️ SEC-Registered Investment Adviser (Est. 1984) 📍 Madison, Wisconsin 📞 608-960-4616

About Wisconsin Capital Management

An independent investment advisory firm headquartered in Madison, WI. Dating back to 1984.

Our Firm History & Purpose

Wisconsin Capital Management is a registered investment advisory firm dating back to 1984. Originally co-founded by Thomas G. Plumb, the firm is primarily focused on providing investment advisory services to its affiliated mutual funds.

Wisconsin Capital Management is an independent investment advisory firm headquartered in Madison, WI. As a boutique firm, we prioritize focus over scale and research over reaction.

Our role is simple: to help clients navigate market cycles with clarity, discipline, and a long-term perspective.

We strive to deliver exceptional investment advisory services that empower our clients to achieve their financial objectives, with the ultimate goal of building enduring relationships founded on trust and transparency. We are committed to fostering long-term capital appreciation and risk-adjusted returns through disciplined portfolio management, innovative asset allocation strategies, and a client-centric fiduciary approach.

Our Mission

We promise to uphold the highest standards of integrity, professionalism, and excellence in all that we do. Our clients' interests are paramount in our investment decision-making process, and we are dedicated to providing personalized, attentive service. We continuously strive to enhance our financial acumen, stay ahead of market trends, and adapt our investment strategies to meet the evolving needs of our clients.

Our Promise

We believe growth is the most important component of a portfolio. Volatility is inherent in stocks. By utilizing bonds and other tools when appropriate, we can best provide the balance our shareholders need. Our commitment is to deliver the highest possible returns, manage downside risk, and support our clients every step of the way on their financial journey.

Our Philosophy

Research-driven investing, risk awareness across market cycles, and long-term capital stewardship. We prioritize discipline over emotion and clarity over complexity.

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Leadership & Experts

Meet Our Experienced Team

Dedicated professionals committed to research-driven wealth stewardship.

Tom G. Plumb, CFA
Principal & Lead Portfolio Manager
Tom G. Plumb, CFA
Principal, Portfolio Manager & Research Analyst
  • Since its founding in January 2004, Principal of Wisconsin Capital Management, a firm that traces its origins to 1984 (formerly Thompson Plumb & Associates).
  • 30+ years financial industry experience; 20 years as Lead Manager of Thompson Plumb Balanced Fund & Dreyfus Premier Balanced Opportunity Fund.
  • Earned BBA from University of Wisconsin-Madison. Member of Madison Investment Management Society. Holds CFA designation.
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Nathan M. Plumb, CTFA
Portfolio Manager
Nathan M. Plumb, CTFA
Portfolio Manager & Research Committee Member
  • Since 2023, Portfolio Manager for privately managed accounts and member of the investment research committee.
  • Earned MBA from University of Wisconsin-Madison & BA from Gustavus Adolphus College. Certified Trust & Financial Advisor (CTFA).
  • Lived and worked in China and Japan for 3+ years. Accomplished high-altitude mountaineer.
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Bonnie Romani
Compliance Leadership
Bonnie Romani
Chief Compliance Officer
  • Since August 2020, Chief Compliance Officer for Wisconsin Capital Management, overseeing the firm's SEC compliance program.
  • More than 20 years of finance industry experience in analysis, licensing, compliance, and service plan administration.
  • Frequent adventure-seeker across Colorado and the Pacific Northwest. Live music enthusiast.
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Tamara Champeny
Marketing & Development
Tamara Champeny
Director of Marketing & Business Development
  • Since 2025, Director of Marketing & Business Development for Wisconsin Capital Management.
  • 25+ years of strategic marketing, brand building, digital communications, and client engagement experience.
  • Passionate European traveler. Mother of two sons and proud Grammy to three.
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Executive Story & Firm Overview

Watch Our Leadership & Firm Overview

Watch Thomas G. Plumb, CFA, and Nathan M. Plumb, CTFA, discuss the principles, discipline, and fiduciary commitment behind Wisconsin Capital Management.