How to Find a Mentor at Work—and Why You Need a Sponsor More

You’ve probably heard that mentorship matters. And it’s true. But here’s what most career advice doesn’t tell you: for women, mentorship alone rarely moves the needle on advancement. What actually opens doors is sponsorship—and women get far less of it.

Not only that: going out looking for a mentor isn't the way to go. As Sheryl Sandberg writes in Lean In, the strongest mentorship relationships aren't found by looking for them. They're earned. Here's how mentorship and sponsorship actually develop.

Key takeaways

• Mentorship matters, but sponsorship matters more.
• A mentor talks to you, a sponsor talks about you, advocating for you in rooms you’re not in.
• High-potential women actually have more mentors than men—but mentorship had no correlation with whether women were promoted. Sponsorship did.
• Employees with sponsors are promoted at nearly twice the rate of those without.
• Only 31% of entry-level women have a sponsor vs. 45% of entry-level men.
• Affinity bias—the tendency for people to gravitate toward others like them—means sponsorship doesn’t always flow to women, since most senior leaders are men.
• The best way to attract a mentor isn't to look for one—it's to do work so strong and so visible that senior leaders invest in you naturally. Then build from there toward sponsorship.

How mentorship actually develops

The best mentorships develop organically. Asking, “Will you be my mentor?” puts people on the spot and rarely produces a strong relationship. Instead:

1. Perform visibly and excellently. Shift your thinking from "if I get a mentor, I'll excel" to "if I excel, I will get a mentor." Mentors select people based on performance and potential—not in response to a direct ask. Do work that gets you noticed.
2. When you talk to more senior colleagues, engage around their work, not your career. After a meeting where a senior coworker said something that resonated, follow up with a specific, substantive question about their thinking—not a request for career advice. Nimbly grabbing a moment after a meeting to ask something well-considered is how many mentorship relationships begin, according to Lean In. The word "mentor" never needs to be said.
3. Make the relationship mutual from the start. The most effective mentoring relationships start from mutual respect. Contribute to projects your potential mentor leads, make their work easier, share information they'd find genuinely useful. As Lean In notes, when done right, everybody flourishes—the mentor receives useful information and a sense of fulfillment alongside the guidance they give.
4. Treat their time as the scarce resource it is. When you meet, come prepared with a specific challenge. Act on their input and report back. Mentors invest more in mentees who show they’re actually using the advice.

How to turn a mentor into a sponsor

Research suggests that mentors are often the best candidates to become your sponsors, because the most effective sponsorship relationships are built on trust earned over time. Here’s how to do exactly that:

1. Be strategic about choosing mentors to build sponsor relationships with. A sponsor must be senior enough to influence promotions, assignments, and hiring decisions. Invest in building trust with coworkers who have the power to champion you when it counts.
2. Bring real problems to your mentors, not just updates on your wins. The more a mentor sees your judgment, follow-through, and potential, the more likely they are to start advocating for you—not just advising you.
3. Make your high performance visible. Sponsors stake their own credibility on your behalf, so they need to be confident you’ll deliver. Shift your thinking from “If I get a sponsor, I’ll advance” to “If I perform well and share it with leaders, I’ll attract a sponsor.”
4. Add value before you ask for anything. You can make mentors more likely to sponsor you by making it mutual and providing them with concrete help: doing background research on a project, sharing a relevant article, or jumping in on something they’re leading.
5. Be patient and stick with it. Some people won’t be willing to advocate for you, and that’s okay. It only takes one or two strong sponsors to make a significant difference in your career.

How to maintain sponsors and sustain their advocacy

Getting a sponsor isn’t a one-time ask—it’s an ongoing relationship. Here’s how to foster one that leads to real advancement:

1. Follow up with people who have already advocated for you in small ways. If you’re given a high-profile assignment, find out who influenced that decision and reach out to thank them. If a senior colleague has gone out of their way to support you, that’s a signal. People who have helped you in minor ways are more likely to advocate for you in bigger ones.
2. Be direct and specific when you ask for support. A vague ask puts the work on your sponsor. Instead of “Could you introduce me to someone in the Australia office?” say, “I’m interested in a role there; would you be willing to introduce me to Ana, who runs their product team?” Specificity makes it easy to say yes.
3. Close the loop—every time. If a sponsor’s advocacy leads somewhere, tell them. Share highlights of what you’re working on. Let them know their support had an impact. Sponsors are more likely to keep advocating for you when they see it’s working—and it deepens the relationship for next time.

The bottom line

Don't wait for someone to rescue your career—and don't spend energy searching for a mentor the way most career advice tells you to. Do work that earns attention. Engage senior colleagues around real problems, not career favors. Let mentorship develop from genuine connection. And then build toward the sponsorship that will actually open doors. The women who advance fastest aren't just well-advised—they're well-sponsored. Do the visible work, and make it easy for senior leaders to bet on you.