Episode 14 - From Vendor to Trusted Partner: Marco Ziegler on Building Client Trust
In this episode of The Lift, Ben is joined by Marco Ziegler, a global client leader at Accenture and former lead of the Office of the CEO for Julie Sweet.
Key takeaways:
Trust is built through a combination of credibility, responsibility, intimacy, and low self-orientation
Strong client relationships require more than expertise: they require vulnerability, empathy, and genuine curiosity
Showing up in person is still one of the most powerful ways to build trust, loyalty, and long-term partnership
Great relationship builders meet clients and colleagues on their terms, not just their own
Intimacy in business does not mean oversharing; it means creating enough openness and trust for real connection
Honest feedback, self-reflection, and following your gut are essential for growing as a leader and trusted advisor
What turns a business relationship into a real partnership? According to Marco Ziegler, it starts with trust – but not the vague kind of trust leaders talk about in theory. The kind of trust Marco means is built deliberately, through consistency, credibility, vulnerability, and the willingness to show up.
Marco has spent decades leading some of Accenture’s largest and most complex client relationships around the world. He has also served in one of the most high-profile internal roles at the company: running the Office of the CEO for Julie Sweet. That vantage point gave him a rare look at what it takes to build trust at every level: with clients, colleagues, senior leaders, and global teams. In this conversation, he shares the principles that have shaped his leadership style and his philosophy on relationship-building in business.
At the center of Marco’s thinking is the trust equation: credibility plus reliability plus intimacy, divided by self-orientation. In practice, that means people trust you when they believe you know what you’re talking about, when you do what you say you’ll do, and when they feel a real human connection with you. But all of that can collapse if the other person senses that you are too focused on yourself, your agenda, your firm, or your own gain.
That final point matters more than many professionals realize. A lot of business relationships stay stuck in a transactional mode because both sides are evaluating what they can get, rather than investing in genuine connection. Marco argues that if you want to move from being a vendor to being a trusted partner, you have to lower self-orientation and increase intimacy.
For Marco, intimacy in business is not about oversharing. It is about being open enough to create trust. It is about learning what matters to the other person, understanding their interests, and revealing enough of yourself that they feel safe doing the same. He makes the case that relationships deepen when leaders “lean in” first — by sharing a personal interest, asking a thoughtful question, or making time for something that matters to the other person outside the transaction itself.
That idea also shows up in how Marco thinks about travel and client service. In one year, he flew more than 150,000 kilometers (over 93,000 miles!) in order to be present with clients and teams around the world. That travel was not just about sitting in conference rooms or attending formal meetings. It was about showing up. It was about visiting clients in their own environments, spending time with local teams, and making the effort to connect on their terms. Whether that meant a quick trip to Mexico City to meet a client face-to-face, visiting a market in Manila, or saying yes to a spontaneous surfing lesson with colleagues in Rhode Island, Marco sees those moments as part of the real work of building enduring relationships.
Another important theme in the episode is that leadership growth requires self-awareness. Marco reflects openly on how his own instincts were shaped by his upbringing in Germany, where responsibility and follow-through came naturally, but vulnerability and intimacy took longer to develop. Over time, he learned that credibility and reliability alone are not enough. To build trust at the deepest level, leaders also need empathy, patience, and the willingness to admit what they do not know.
That growth did not happen automatically. Marco describes it as the result of changing environments, learning from mentors, taking on new roles every few years, and repeatedly putting himself in situations where he had to grow. One of the clearest examples came during his year running the Office of the CEO, when he found himself back in student mode — learning new industries, preparing for high-stakes meetings across the globe, and helping orchestrate one of the largest leadership platforms in business. That experience reinforced a lesson he carries into every client relationship: you do not need to know everything, but you do need to know how to learn, who to ask, and how to build trust fast.
Marco also shares a painful but formative story about a client pitch gone wrong, when he and his team were effectively thrown out of the room mid-meeting. The failure became a turning point. It taught him the cost of being too self-oriented and the importance of listening more closely to his instincts when something feels off. It also deepened his belief that honest feedback is essential to becoming better at relationships, leadership, and business.
This conversation is especially relevant for client leaders, account managers, founders, consultants, and executives who want stronger, more durable relationships with the people they serve. Marco’s message is clear: trust is not built through slide decks alone. It is built through consistency, presence, curiosity, and the willingness to connect as a human first.
If you want to build client relationships that last, start here: be credible, be reliable, lower your self-orientation, and show up.
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