Scaling HR For Growth with Grace with Theresa Cantwell

What happens when you stop treating HR as a back-office function and start designing it as a competitive advantage?

Theresa Cantwell, Strategic HR Consultant and Director at GSD HR Consulting, believes scaling a company shouldn't mean burning out your team—or yourself. With nearly two decades leading people strategy at companies like Microsoft, ThoughtWorks, and Equal Experts, Theresa has helped organizations across Europe and Asia grow not just fast, but gracefully.

In this episode, we dive into the most overlooked challenges founders face when they scale: losing visibility, clinging to control, and skipping the crucial step of designing people and culture systems that can actually support growth. From shadow planning and succession strategies to why success itself can be terrifying, Theresa shares powerful tools and real talk every startup leader needs to hear.

If you're moving past 20 employees and want to build a company that lasts—without losing what made it special—this conversation is your playbook.

Key Takeaways

• Start HR Strategy Early: Don’t wait for burnout or lawsuits—build people ops into your scaling strategy from day one.
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• Shadow Planning Is Essential: Prepare for the worst by confronting your team’s shadow behaviors and stress reactions before they sabotage growth.
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• Succession Planning Isn’t Personal: It's about scalability. Delegate early, document processes, and regularly revisit org design.
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• Growth Changes Everything: Founders need to let go to level up. What got you here won’t get you there.
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• AI in HR Is a Tool, Not a Fix: Automate the repetitive, but double down on building trust and strategic visibility.
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Additional Insights

• HR should be the connective tissue of an organization—not the "issues and tissues" team.
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• Scaling gracefully requires confronting the emotional toll of growth, including fear of success.
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• Theresa shares how early experiences at Microsoft and ThoughtWorks shaped her belief in high-trust, high-agency cultures.
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• Executive coaching and intentional design can prevent burnout and boost retention.
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Episode Highlights

00:00 – Episode Recap

Theresa Cantwell unpacks the emotional complexity of growth—from the fear of success to the need for intentional HR design. With experience scaling organizations across continents, she shares how founders can build people-first cultures that thrive under pressure.

01:54 – Guest Introduction: Theresa Cantwell

Theresa is a strategic HR consultant and founder of GSD HR Consulting, with nearly two decades of experience building and scaling agile-aligned cultures in the tech and digital sectors.

04:43 – Pivotal Moment at Microsoft

Seeing a team she’d hired bonding over lunch sparked her transition from recruitment to building cultures that last.

06:28 – ThoughtWorks and Radical Culture Design

Barry reflects on his own onboarding experience and how Theresa helped him understand the unique culture of ThoughtWorks from day one.

09:33 – From Recruiter to Culture Architect

Theresa shares why she shifted from acquisition to engagement, building full lifecycle HR strategies rooted in trust and clarity.

15:29 – When to Start Thinking About People Strategy

At 20 people, you need to get intentional—mission, values, cofounder conflict prep, and hiring bar must be aligned.

18:51 – Shadow Planning Explained

Why leaders must confront their own stress behaviors and prepare for the worst—before it happens.

22:39 – Handling...