
On strategy is a promise to investors.
We are free-thinking investment managers who connect ideas and intelligence from across strategies to pinpoint market signals. We’re always on and ready to capture alpha.
On strategy finds investment truth.
We actively manage high-conviction portfolios for consistent risk-adjusted outperformance through objective observation and systematic analysis of the global markets.
On strategy is a way of seeing.
Our world-class investment platform enables Thornburg’s team to be nimble and decisive, committed equally to the strategic integrity of portfolios and to knowledge communicated with transparency and substance.

It isn't just an investment mandate, it defines Thornburg.
Our History
Thornburg is founded
Municipal Fixed Income
On June 1, 1982, Thornburg Investment Management was founded by Garrett Thornburg in Santa Fe, New Mexico. Initial offerings include municipal and taxable fixed income strategies.
An Expanding Platform
Global Equities
By the 1990s, Thornburg launched its first equity strategies, investing in U.S. and international markets while continuing to expand fixed income solutions.
Clients Driving Growth
Global Income | Emerging Markets
Thornburg introduced global multi-asset income and emerging markets strategies. The firm opened its new corporate campus, receiving a LEED Gold certification, and featuring the integration of architecture and advanced environmental technologies.
Going Global & ESG
Serving Clients Worldwide
Thornburg began expanding to serve clients around the world with UCITS fund solutions and offices in London and Hong Kong. Responding to growing investor interest, the firm launched its first ESG strategy focused on international equity markets.
New Horizons
While serving clients over four decades, Thornburg continues to bring new, active investment strategies to meet the portfolio needs of institutional investors, financial professionals and individual investors globally.

Vision
On strategy is who we are, not a metric or a mandate—we measure success from our client’s point of view. Thornburg’s global base of institutional, financial professional and individual investors expect superior performance on all fronts. This sets the bar across the firm, from risk management and data security to sustainability principles; and from diversity and inclusion to governance. We created a world-class investment platform—on strategy is a promise to all investors.
Mission
Our mission is to add value with active portfolio management to help our clients reach their long-term investment objectives. We achieve this through our investment strategies, adhering to our values and investment principles, and offering employees a challenging and rewarding place to build a career.
Values
We do the right thing
We act with integrity and put our clients first.
We think for the long term
We engage in thoughtful decision making and believe that investment excellence should drive our decisions.
We work together to achieve common goals
We show respect and humility towards each other and our clients. We believe in creating a supportive work environment that fosters teamwork, collegiality, and effective communication.
We strive for excellence
We make the extra effort, practice continuous improvement, and stay flexible to adapt to changing circumstances.
We are committed to our employees
We foster an environment that provides flexibility and opportunity for growth, while also requiring accountability.
We are independent
We will remain a privately owned, independent firm to ensure that we act in the best interest of our clients and employees.
We are community minded
We support philanthropic giving and encourage employee volunteerism.
