TSSG Diversity is a retained executive search and leadership advisory firm supporting organizations operating in complex, capital-intensive environments across U.S. infrastructure, environmental, and advanced industry markets.

Founded in 1995 by Theresa “Tee” Shields, TSSG partners with boards, CEOs, and executive leadership teams to strengthen leadership capacity, succession durability, and governance-aligned workforce strategy in sectors where operational execution and long-cycle planning are critical.

As infrastructure investment and industrial innovation accelerate nationally, leadership precision — not hiring volume — determines long-term performance.

Our Work Focuses On:

~Executive and C-suite succession
~Mission-critical technical and operational leadership
~Growth-stage and private equity-backed organizations
~Engineering, environmental, power, grid, sustainability, and advanced technical industries

We operate exclusively on a retained basis.

Our approach is disciplined, discreet, and strategic, built to protect leadership continuity and organizational durability in high-stakes environments.

Our Perspective

Representation is not separate from performance.

Leadership teams that reflect broader expertise and perspective are more resilient, more innovative, and better positioned to navigate complex infrastructure and advanced industry landscapes.

Equity is embedded in how we assess and present leadership talent — not positioned as an overlay, but as a strategic advantage.

TSSG Diversity

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