Hi, I’m Sundie.

Sundie Marquardt

I take care of your professional development so you don’t have to.

With 20+ years of coaching experience and more than 10,000 clients served, I help small companies spark big change through leadership development, culture-building, & career growth.

I’ve trained corporate teams to lead with confidence, communicate with clarity, and create workplaces where people thrive. I’m known for sparking lightbulb moments—and turning them into lasting change.

My Services

  • I provide strategic executive coaching, guide leaders to unlock their full potential, and foster professional growth through personalized development plans.

  • I offer a simple, "just-in-time" spot coaching approach that is:

    • Timely. Happens in the moment or shortly after an issue arises.

    • Targeted. Focuses on specific needs such as decision making, feedback, or conflict.

    • Developmental. Aims to build awareness, shift mindset, and identify next steps.

  • I'm a trained facilitator in the Insights Discovery methodology, which uses a simple, memorable four-color model to help individuals better understand their personal style, strengths, and the unique value they contribute to a team. I offer facilitation for the following programs:

    • Introduction to Discovery

    • Discovering Team Effectiveness

    • Discovering Leadership Effectiveness

    • Discovering Sales Effectiveness

    • Insights into Resilience

    • The Self Aware Leader

  • Choose from a selection of ready-made workshops, or let’s collaborate to create one tailored to your professional development needs.

  • I work with companies on growth plans, gap analysis, strategic planning, quarterly planning and the communication of these changes to an organization.

  • I deliver impassioned speeches to diverse audiences to instruct, motivate, and influence by incorporating targeted messaging and conveying complex concepts simply.

My Experience

☼ Certified Leadership & Executive Coach

☼ Certified Insights Discovery Practitioner & Group Facilitator

☼ Certified Myers-Briggs Type Indicator (MBTI) Practitioner

☼ Certified Strengths Finder Coach

☼ Outplacement Certified

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The image features the logo of LSG, with the letters 'LSG' in bold orange color.
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Testimonials

"I've had the pleasure of working with Sundie for over 20 years across multiple organizations. She consistently brings exceptional value—whether through speaker training, executive coaching, or facilitating high-stakes meetings. Most recently, she led speaker training for my medical team, improving communication and setting the stage for executive coaching. Sundie is thoughtful, organized, and highly collaborative. What sets her apart is her ability to quickly assess team dynamics and tailor her approach to deliver lasting impact. She's a consummate professional whose presence adds immediate value to any organization. I recommend Sundie without hesitation to any company looking to strengthen leadership, communication, and team effectiveness."

— Gareth G.

SVP Medical Affairs, Liquidia

"Sundie is a very talented career coach and trainer – authentic, caring and “knows her stuff!” In my three years working with her, Sundie consistently received stellar feedback from her coaching clients and peers as well as those who attended her training classes. By quickly establishing trusting, open and honest relationships with her coaching clients, she motivates and helps them to successfully navigate their careers. As a facilitator, she is an energetic, engaging storyteller who makes classes interactive, informative and fun. Sundie exemplifies what a great coach should be, and it was a joy working with her!"

— Christi S.

Leadership Coach

"Working with Sundie has been an absolute game-changer. As a trainer, she brings clarity, structure, and energy that keep our team engaged and growing. As an executive coach, she’s a true partner, who thoughtfully, strategically, and effectively helps leaders realize their potential. What really sets Sundie apart is how seamlessly she became part of the fabric of our company. Much more than a coach of individuals, she has elevated the entire organization. I can't recommend her highly enough.

— David B.

Founding Partner & CEO, LSG

"I owe so much to Sundie. I was working what felt like a dead-end job and had practically given up on any better options. Meeting with Sundie gave me the skills and courage I needed to pursue and land my dream job. Not only is she an extremely knowledgeable and experienced career coach, but she has a way with people that makes you feel immediately comfortable with her and so encouraged after every session. She truly listens, and knows how to uncover what you're really passionate about, and can help you forge a path to get there. I can't recommend her enough!"

— Nathan M.

Client

Working with Sundie was a transformative experience for our board. She brought a rare combination of strategic insight and emotional intelligence that helped us develop a clear and compelling Ideal Board Profile. Her ability to quickly connect with our team, ask the right questions, and thoughtfully assess our current composition allowed us to identify key gaps and opportunities for growth. Her guidance was not only insightful but also deeply respectful of our culture and goals. I highly recommend her to any organization seeking to elevate their board’s effectiveness and alignment with their mission.

— Adam S.

Chief Programs Officer

Let’s work together.

Click here to book a complimentary virtual meet & greet, or fill out the intake form to get in touch.