Board Diversity May Be Blocking Women’s Path to CEO

A new report from FTSE Women Leaders and the University of Glasgow warns that boardroom gender diversity may inadvertently block women from the most senior executive roles. More women now sit on UK boards. But many join as non-executive directors at the same time as their male peers build profit-and-loss and transformation experience. That experience leads to CEO and CFO roles.

The report asks a difficult question. Has board-level progress come at the expense of executive leadership pipelines? The UK’s largest listed companies now have stronger board gender balance than almost any other major economy. Yet women still hold relatively few CEO, CFO, and chair roles. Those roles set corporate strategy and culture.

How board diversity and executive diversity became disconnected

FTSE 350 boards now include approximately 43 per cent women, up from just 9.5 per cent in 2011. All-male boards have effectively disappeared from the FTSE 350. This is a significant achievement, and it reflects the power of voluntary targets, public reporting, and investor pressure.

However, the new research suggests that appointing women as non-executive directors may draw talent away from the executive pipeline. Men are more likely to remain in operational roles. They run divisions, lead transformations, and manage profit and loss. Women are more likely to join board positions. These roles carry prestige, but they do not provide the same operational experience needed to become CEO or CFO.

The report warns that women are moving into non-executive roles while men still build the P&L and transformation experience that boards want in chief executives. Over time, this widens the gender gap in the talent pipeline rather than closing it. A non-executive directorship is valuable, but it is not a substitute for running a business.

This is not an argument against board diversity. Women on boards have improved governance, broadened perspectives, and made companies more accountable on issues ranging from culture to climate risk. The concern is that board-level progress has become a proxy for overall gender equality in leadership. That is a mistake. Board seats are one measure of power. Executive power is another, and the two are not the same.

What is holding women back from the top roles

The report identifies several structural barriers beyond the non-executive appointment pattern. The UK Corporate Governance Code limits director tenure to nine years. This can stop senior independent directors from progressing to chair roles on the same board. When chair succession arises, the tenure limit and potential conflicts of interest make it harder for women already on the board to step up.

The “comply or explain” principle also causes problems. Investors often treat an explanation for non-compliance as a failure to comply. This restricts boards’ flexibility to make appointments that might not fit the code strictly but would advance diversity. The report argues that this dynamic narrows the chair pipeline and reinforces risk-averse appointment practices that disproportionately affect women.

Another issue is the shortage of sponsorship. Ambitious women are less likely than ambitious men to have senior leaders actively advocating for their progression into CEO and CFO roles. Mentorship is common. Sponsorship, where someone uses their influence to open doors, is rarer. Without it, talented women remain visible but not promoted into the roles that build the credentials for the top job.

Performance evaluation and risk tolerance also play a part. Research consistently shows that companies promote women on the basis of proven track records. Men more often advance on potential. Women get fewer chances to lead turnarounds, acquisitions, or international expansions. Boards value those assignments when selecting CEOs. The result is a circular problem. Without the right experiences, women do not look CEO-ready. Without being given those experiences, they cannot become CEO-ready.

Why the executive pipeline matters more than board numbers

Board representation matters because boards set strategy, appoint executives, and shape culture. But executive representation matters because that is where operational power sits. CEOs and CFOs control budgets, allocate resources, hire senior teams, and determine which products, markets, and people get investment. If women are absent from those roles, the decisions that shape organisations continue without women’s perspectives at the table.

The report also links this to the gender pay gap. Women in executive roles and revenue-generating functions tend to earn more and have greater influence over pay decisions. If women are concentrated in support functions, non-executive roles, and lower-paid divisions, the pay gap persists even when board numbers look healthy.

For women building careers in corporate environments, the implication is clear: visibility at board level is not the same as power in the executive suite. Career planning needs to include operational experience, P&L responsibility, and transformational leadership, not just board exposure.

What businesses and policymakers should do differently

The report calls for a more sophisticated approach to gender equity that extends beyond board targets. Measurement, transparency, and accountability remain essential. But they need to cover the full leadership pipeline, not just the boardroom.

Organisations should examine who receives sponsorship for operational roles. They should track who leads major change programmes. They should also check who is being prepared for CEO and CFO succession. Boards should ask whether their executive teams reflect the same diversity goals they have set for non-executive appointments. Investors should scrutinise pipeline data, not just headline board percentages.

For policymakers, the report suggests that the UK’s leadership on board diversity should now be matched by attention to executive development, flexible career pathways, and support for women returning from parental leave. Without these, the UK risks becoming a country with diverse boards but homogeneous executive power.

For female entrepreneurs, the message is different but related. Many women leave corporate careers because the executive pipeline feels blocked. Their businesses become an alternative path to leadership and wealth creation. But entrepreneurship also carries risks. These include lower access to capital, uneven income, and limited support infrastructure. The better corporate leadership becomes at developing women, the more women will have genuine choice about whether to build inside an organisation or outside it.

Ultimately, the FTSE Women Leaders and University of Glasgow report reminds us that equality is not a single milestone. It is a series of connected challenges across recruitment, development, promotion, and power. Board diversity was the right place to start, and the UK has made genuine progress. But starting is not finishing. The next decade of work will require a sharper focus on who runs businesses, not just who sits on their boards.

Prowess covers leadership, careers, and entrepreneurship for women in business across the UK. Read more about women in leadership, or explore why women make great entrepreneurs.