Sponsorship Changes Outcomes: Who Actually Moves Up

Part 2 of a series on mentoring, sponsorship, and the systems that shape careers in STEMM

I have not had many mentors in my career. What changed my trajectory was the handful of sponsors I had. The people who spoke my name in rooms I was not in backed me when an opportunity opened, and took a risk on me before the outcome was obvious.

That is the difference.

Mentors advise. Sponsors advocate.

The research base on sponsorship is smaller than the mentoring literature, and much of it is qualitative or observational. But the pattern is consistent across business and academic medicine: sponsorship is distinct from mentoring, adds unique value, and appears to matter most at the moments when careers stop being about preparation and start becoming about selection.

This newsletter is about that difference.

1. Mentoring Builds Capability. Sponsorship Moves Power.

A mentor helps you improve. A sponsor helps you advance.

A scoping review of sponsorship in academic medicine defines sponsorship as a set of actions in which a person with influence actively supports a colleague’s career by helping them gain visibility, recognition, and opportunities. The authors conclude that sponsorship is both distinct from and additive to mentorship, particularly for women and faculty underrepresented in medicine.

The business literature has been saying something similar for years. In the well-known Harvard Business Review article Why Men Still Get More Promotions Than Women, Herminia Ibarra, Nancy Carter, and Christine Silva argued that women often receive mentoring but not the kind of sponsorship that translates into promotion. Their point was not that mentoring does not matter. It was that mentoring alone does not move people into senior roles.

That is the uncomfortable part.

Many people are well-mentored but still stalled.

2. What Sponsors Actually Do

Sponsorship is often described vaguely, as if it were just “strong support.”

That undersells it.

Sponsors do specific things:

• They nominate you for stretch roles.

• They defend you after a setback.

• They attach their credibility to your potential.

• They create visibility with decision-makers.

• They make sure your name comes up when you are not in the room.

In another Harvard Business Review article on women’s advancement into leadership, the author argued that a major barrier is not lack of talent but lack of access to the “high-stakes assignments” that prepare people for top roles, and those assignments often require a sponsor to secure them.

This is what makes sponsorship different from encouragement.

It is not advice. It is a transfer of power.

And because it involves power, it also involves risk. 

Sponsors do not just help. They bet.

3. Why Sponsorship Is Unequally Distributed

This is where the conversation becomes uncomfortable, but also honest.

Here is the real problem: sponsorship tends to reproduce itself. When the people with the most power mostly belong to the same race or social circle, they often pull forward more of the same people. Not necessarily because they are malicious, but because familiarity is mistaken for merit, comfort for trust, and shared background for potential. 

Minority professionals are then left trying to compete on performance alone, while others benefit from advocacy, visibility, and access that happen quietly behind the scenes.

The academic medicine literature reflects this clearly. The recent scoping review found relative consensus that sponsorship matters for career advancement, but also found that women were less likely to access or be identified for sponsorship in most qualitative studies reviewed. Only two studies looked specifically at underrepresented-in-medicine populations, which tells you something important by itself: this topic matters, but the evidence base is still weak.

A qualitative study from Johns Hopkins found that sponsorship was perceived as critical to high-level advancement in academic medicine and that women experienced it differently.

Participants described sponsorship as giving an “extra boost,” but also described gendered differences in who seeks it, who receives it, and who gets seen as sponsor-worthy.

The corporate research points in the same direction. The Sponsor Effect argued that sponsorship offers women what talent and hard work alone often do not secure: access to the highest levels of leadership.

That does not mean success is arbitrary. It means that advancement is not purely individual or dependent on merit.

Importantly, the sponsorship literature does not show that formal sponsorship programs automatically fix inequity.

4. A Word to Students: Mentoring Is Essential. Sponsorship Comes Later, But You Should Know the Difference Now.

If you are a student, trainee, or early-career professional reading this on my blog, this may sound distant.

It is not.

At your stage, mentoring matters more immediately. You need people who will help you build skill, confidence, judgment, and direction. You need feedback. You need honest advice. You need role models. I say this often in my speeches, during coaching sessions, and in this newsletter. That is still foundational.

But it is worth learning early that the people who help you grow are not always the same people who help you move.

I wish someone had told me that early in my career.

You do not need to chase sponsorship prematurely. You do need to understand how careers actually work.

• doing excellent work,

• making your interests visible,

• building relationships with integrity,

• and recognizing that opportunities are often relational rather than meritocratic.

For many first-generation students, immigrants, and underrepresented trainees, this reality can feel discouraging. I think the opposite is true. Naming the system clearly is more empowering than pretending it does not exist.

You are not imagining the difference between being supported and being chosen. There is a difference.

5. A Word to Executives: If You Lead, You Are Already a Sponsor, or You Are Withholding Sponsorship

For leaders, this conversation is not abstract.

If you are a manager, department chair, executive, PI, or board member, you likely already function as a sponsor, whether you use that word or not.

Every time you:

• Recommend someone for a role,

• nominate them for visibility,

• include them in a consequential meeting,

• defend them after a mistake,

• or decide they are “not ready,”

You are shaping sponsorship.

That means sponsorship is not just a relationship issue. It is a leadership behavior.

And leadership teams should ask themselves hard questions:

• Who gets the stretch assignments?

• Who gets introduced to power?

• Who gets forgiven after imperfect performance?

• Who gets described as “high potential”?

• Whose absence from informal networks is mistaken for a lack of readiness?

The scoping review in academic medicine explicitly calls for institutional commitment and infrastructure to support equitable sponsorship, not just goodwill.

If sponsorship remains invisible, it will also remain unequal.

The Bottom Line

Mentoring helps people grow. Sponsorship decides who moves.

For students, the lesson is not to become cynical. It is to understand that excellence matters and relationships matter too.

For executives, the lesson is not to talk more about talent. It is to examine who you are actually pulling forward.

Because careers are not shaped only by who is prepared, they are shaped by who is backed.

And even sponsorship, powerful as it is, depends on something bigger: the system that decides whose backing counts.

In the next edition, I will examine that final layer: the structures, incentives, and outdated reward systems that keep talent leaking even when mentoring and sponsorship are present.

Because the problem is not just who gets advice. Or even who gets advocacy. It is the structures and systems that decide what happens to both.

What to Do

If you are a student or early-career professional:

• Learn the difference between mentoring and sponsorship.

• Seek mentors for growth.

• Build the credibility and relationships that make sponsorship possible.

• Do not mistake invisibility for lack of value.

If you are a leader:

• Audit whom you sponsor, not just whom you mentor.

• Track who gets visible assignments and who does not.

• Stop assuming that sponsorship happens fairly on its own.

• Treat sponsorship as part of talent infrastructure, not a private favor.

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This newsletter is also published on LinkedIn and Medium.