Board Construction: A Complete Guide for UK Companies

Board construction is the strategic work of building and refreshing a board over time – deciding what skills, sector knowledge, backgrounds and personal attributes the board needs, in what proportions, and in what sequence. It is one of the most consequential governance disciplines a company undertakes, and one of the most consistently neglected. Boards typically refresh themselves opportunistically, replacing departing directors with similar profiles found through informal networks, rather than working to a plan. Over time the result is a board whose composition lags the company’s strategic direction, whose skills mix reflects past needs rather than future ones, and whose effectiveness slips faster than its formal governance disclosures would suggest. The strongest UK boards treat construction as a multi-year discipline, not an episodic recruitment exercise.

This guide is written for chairs, nomination committees, founders, shareholders and private equity sponsors who recognise that board construction is a strategic capability in its own right. It covers the skills matrix, independence, committees, the roles of the chair and senior independent director, diversity, time commitment, sequencing, board evaluation, the pitfalls we see most often, and how construction differs between a founder-led company, a PE-backed business, a pre-IPO company, a listed company and an FCA-regulated firm. If you are ready to start a search, our board of directors recruitment service covers chair, non-executive and executive board appointments.

The skills matrix approach

The foundational tool of structured board construction is the skills matrix: a documented view of the skills, sector knowledge and experience the board collectively holds, mapped against what the company needs to deliver its strategy.

Building the matrix

A useful matrix usually works with eight to twelve competency dimensions relevant to the company. Common ones include financial expertise, sector experience, M&A and transaction experience, international exposure, technology and digital capability, sustainability and climate, customer and commercial expertise, regulation and governance, people and remuneration, and risk management. Add the dimensions specific to your sector or strategy and drop the ones that genuinely do not matter. Each director is then assessed against each dimension, producing a coverage map that shows gaps, duplication and over-concentration.

Keep the scoring simple. A three-point scale works well: deep expertise (the director could lead the board’s thinking on the topic), working knowledge (they can challenge credibly), and limited or none. Finer scales tend to create false precision and long arguments about whether someone is a 3 or a 4.

An example skills matrix

The table below is an illustrative matrix for a hypothetical mid-sized UK business planning international expansion and a possible sale within four years. “D” means deep expertise, “W” means working knowledge, and a dash means limited or none.

Read across the rows rather than down the columns. In this example, finance and sector knowledge are well covered, perhaps over-covered. International expansion, technology and transaction experience – the three things the strategy depends on – each rest on a single person or on no one at all. Remuneration and people expertise is thin, which matters if the remuneration committee is going to design an exit incentive plan. The obvious next appointment is not another finance specialist, however strong the candidate, but a non-executive with international and transaction experience, ideally someone who has been through a sale process from the board side.

Mapping against strategy

The matrix only delivers value when it is mapped against what the company needs over the next three to five years. A board with deep historical sector expertise but no digital capability is a problem if the strategy depends on technology change. The mapping is the real analytical work, and it benefits from outside perspective: boards that run the exercise purely internally tend to validate their existing composition rather than find the genuine gaps.

Refreshing the matrix

Strong boards review the matrix annually, usually as part of the nomination committee’s cycle and alongside the board evaluation. The annual review shows drift between composition and strategy and informs the multi-year appointment plan. It is also worth recording the matrix in summary in the annual report: investors increasingly expect to see how the board’s skills relate to the strategy, not just a list of biographies.

Independence and the balance of the board

For premium and commercial-company listed businesses, the UK Corporate Governance Code 2024 sets the framework most other companies borrow from. The 2024 Code applies to financial years beginning on or after 1 January 2025, with the new internal controls declaration in Provision 29 applying from 1 January 2026. The composition provisions were largely carried over from the 2018 Code, so the independence tests will be familiar.

Provision 11 expects at least half the board, excluding the chair, to be non-executive directors whom the board considers independent. Provision 10 lists the circumstances that are likely to impair, or could appear to impair, a non-executive’s independence. In summary, these are where the director:

• has been an employee of the company or group within the last five years
• has, or has had within the last three years, a material business relationship with the company, directly or as a partner, shareholder, director or senior employee of a body that has such a relationship
• receives or has received additional remuneration apart from a director’s fee, participates in share options or a performance-related pay scheme, or is a member of the company’s pension scheme
• has close family ties with any of the company’s advisers, directors or senior employees
• holds cross-directorships or has significant links with other directors through involvement in other companies or bodies
• represents a significant shareholder; or
• has served on the board for more than nine years from the date of first appointment.

None of these is an automatic bar. The board can still conclude that a director is independent, but it has to explain why. In practice, construction work needs to track each non-executive’s independence position over time. The nine-year marker in particular means that a cohort of NEDs appointed together will all approach the threshold together, which is one of the strongest arguments for staggering appointments.

Independence is not just a listed-company concern. PE-backed boards usually include sponsor directors who are, by definition, not independent, and founder-led companies often have NEDs who are friends, early investors or former advisers. That can work well, but the board should be honest about who can give genuinely independent challenge and make sure at least one or two people can. For private companies, the Wates Corporate Governance Principles make the same point in less prescriptive terms: Principle Two asks for an effective board with an appropriate balance of skills, backgrounds, experience and knowledge, and a size and structure suited to the company.

Committees, the chair and the senior independent director

Committee composition is where board construction becomes concrete. A board can look well balanced on paper and still be unable to staff its committees properly. The Code’s committee provisions are the most useful checklist even for companies that are not bound by it.

Nomination committee

Under Provision 17, a majority of the nomination committee should be independent non-executive directors. The chair of the board should not chair the committee when it is dealing with the appointment of their own successor. The committee owns the skills matrix, the succession plan for both the board and senior management, and the search process itself.

Audit committee

Provision 24 expects the audit committee to be made up of independent non-executive directors, with a minimum of three members, or two for companies below the FTSE 350. The chair of the board should not be a member. At least one member should have recent and relevant financial experience, and the committee as a whole should have competence relevant to the sector. This is usually the first committee to expose a gap: if the only director with recent financial experience is also the person you need to chair the remuneration committee, you have a construction problem.

Remuneration committee

Provision 32 also sets a minimum of three independent non-executives, or two for smaller companies. The board chair can be a member, but not chair the committee, if they were independent on appointment. Before taking the role, the remuneration committee chair should have served on a remuneration committee for at least twelve months. That twelve-month requirement is easy to overlook when planning a refresh and is a good reason to bring a future remuneration chair onto the committee a year before they are needed.

The chair

Provision 9 says the chair should be independent on appointment, and the roles of chair and chief executive should not be exercised by the same person. A chief executive should not go on to become chair of the same company. Provision 19 says the chair should not remain in post beyond nine years from first appointment to the board, although this can be extended for a limited time to support succession planning, particularly where the chair was an existing non-executive on appointment. Because the chair shapes the board’s agenda, culture and future appointments, chair succession is the most consequential single change a board makes. Our chairman recruitment work starts from what the board will need over the next chair’s tenure, not from the outgoing chair’s profile.

The senior independent director

Provision 12 asks the board to appoint one of the independent non-executives as senior independent director. The SID is a sounding board for the chair, an intermediary for other directors and shareholders, and leads the annual appraisal of the chair. The SID also often leads the search for the next chair, which means the role carries real weight at the point of chair succession. A good SID is usually an experienced non-executive with the standing to have a difficult conversation with the chair. For more on the role, see our senior independent director recruitment page.

Diversity dimensions

Board diversity has a real effect on how well a board makes decisions, and for listed companies it is also subject to formal disclosure requirements. Three categories deserve attention.

Demographic diversity

Gender, ethnicity, age and geographic background. Under the UK Listing Rules, companies with equity shares in the commercial companies category must state in the annual report whether they have met three targets on a comply-or-explain basis (UKLR 6.6.6R(9)), and publish standardised data tables on board and executive management diversity. The targets, set out when the FCA finalised the rules in 2022, are:

• at least 40% of the board are women
• at least one of the senior board positions (chair, chief executive, chief financial officer or senior independent director) is held by a woman; and
• at least one member of the board is from a minority ethnic background, using the ONS categories excluding white ethnic groups.

These are disclosure targets, not quotas. A company that misses one must explain why. Larger private and PE-backed businesses increasingly face similar expectations from investors and lenders even though the rules do not apply to them. The senior-positions target matters for construction because it links diversity to the sequencing of chair, CEO, CFO and SID appointments rather than to the board headcount alone. Our board diversity appointment guide covers how to build genuinely broad shortlists.

Cognitive and experiential diversity

Different career paths, functional backgrounds, risk appetites and decision-making styles. This is where much of the practical value lies: a board built around similar career profiles produces similar thinking, even where its demographics differ. Boards that recruit almost entirely from former finance directors, or entirely from one sector, tend to agree too quickly. Our guide on how NEDs can spot groupthink looks at the warning signs.

Tenure diversity

A mix of long-serving directors, who hold institutional memory, and newer directors, who bring fresh challenge. The Code does not set an average tenure, but the nine-year independence marker for non-executives and the nine-year chair limit create natural cycles. Boards that drift towards long average tenure lose the capacity for fresh challenge; boards that turn over too fast lose memory of why past decisions were made. A sensible pattern has at least one director with several years’ service and at least one who joined recently, with appointment dates spread out rather than clustered.

NED time commitment

Time is the most underestimated construction issue. A strong non-executive who cannot give the role the time it needs is a weak appointment. Provision 15 of the Code asks boards to take into account other demands on directors’ time when making appointments, requires significant commitments to be disclosed before appointment, and expects the board’s prior approval for additional external appointments. Full-time executive directors should not take on more than one non-executive role in a FTSE 100 company or other significant appointment.

In practice, a non-executive role is rarely just the scheduled board meetings. Add committee meetings, preparation, site visits, strategy days, investor and stakeholder engagement, induction and the unscheduled time that arrives in a crisis, a transaction or a regulatory issue. Committee chairs need materially more time than ordinary members, and the chair more again. The letter of appointment should state an expected time commitment, and the nomination committee should ask candidates frankly how their other roles add up, including what happens if two of their companies have a difficult quarter at the same time.

Time commitment also affects construction choices. A serving executive with current operating experience may bring the freshest perspective but have the least capacity; a full-time portfolio non-executive may have the capacity but be further from current practice. Most boards benefit from a mix. When you brief a non-executive director recruitment search, be specific about the time you expect and the periods of the year when it will peak.

Sequencing of appointments

Board construction over time involves sequencing: which appointment to make first, which to defer, and how to manage several changes at once. Three principles recur in well-sequenced refreshes.

Address the largest gap first

Where the skills matrix shows several gaps, fill the one most consequential to the strategy first, not the easiest one. Boards sometimes fill an easier gap as a procedural win rather than confronting the one that matters.

Do not change too much at once

Boards that replace three or four directors at once often lose institutional memory and working rhythm faster than the new composition becomes productive. The strongest refreshes phase appointments over twelve to twenty-four months, with most boards changing one or two directors a year on a rolling basis. Staggering also avoids a cohort of directors reaching the nine-year mark together.

Sequence chair changes carefully

Chair succession is the most consequential single board change, and it works best after a period of relative stability rather than alongside several NED changes. The order of chair and chief executive appointments also matters. Where both are changing, many boards appoint the chair first so that the new chair can lead the CEO search and build the relationship from the start. Where the CEO change is urgent, the board may reverse the order, but should then brief the chair search on the new chief executive’s style and the working relationship the board wants.

Plan committee succession, not just board seats

Each refresh should be checked against committee needs. If the audit committee chair is two years from the nine-year mark, the next appointment may need to be someone with recent and relevant financial experience who can join the committee now and take over later. The same applies to the remuneration committee’s twelve-month experience requirement. Mapping committee seats against appointment dates on a single page is often the most useful document a nomination committee produces.

Board evaluation and refresh

Board evaluation is the feedback loop that keeps construction honest. The 2024 Code (Provision 21) expects an annual, formal and rigorous review of the performance of the board, its committees, the chair and individual directors. FTSE 350 companies should have the review externally facilitated at least every three years. The chair should act on the results, and the annual report should describe how the review was carried out and what came out of it.

A useful evaluation goes beyond whether papers arrive on time. It asks whether the board has the right people for the next stage, whether discussion is genuinely challenging, whether any director’s contribution has fallen away, and whether the committees are working. The findings should feed directly into the skills matrix and the appointment plan. If the evaluation identifies that the board spends too little time on technology risk, the answer may be an appointment, a change of committee remit, or better information from management – but it should lead to a decision.

Evaluation is also where boards confront the hardest construction decision: asking a director to step down before the end of their expected term. Annual re-election (Provision 18) gives listed companies a natural point to do this. Private companies need to build an equivalent into letters of appointment, with fixed terms and a clear expectation that renewal is not automatic.

Common board construction pitfalls

Six patterns recur in board construction work that goes off track.

• Replacing like with like. The most common failure. A departing director is replaced with a similar profile, without asking whether the company’s needs have changed. The cumulative effect over five years is a board that lags the strategy.
• Filling seats with available candidates. Strong people surfaced through informal networks may not match what the board needs. Mapping the gap before searching saves time.
• Diversity treated as compliance. Boards that treat diversity as box-ticking often make appointments that meet the formal target but do not broaden the board’s thinking.
• The skills matrix as documentation rather than analysis. A matrix that is built and filed without informing decisions is governance theatre.
• Poor sequencing. Several simultaneous changes that disrupt the board’s working rhythm, or a cohort of appointments that all reach the nine-year mark together.
• No outside perspective. Boards that run the analysis purely internally tend to confirm their existing composition rather than find the real gaps.

A seventh pitfall is worth adding: forgetting the legal duty that sits behind every board seat. Under section 172 of the Companies Act 2006, each director must act in the way they consider most likely to promote the success of the company for the benefit of its members as a whole, having regard to long-term consequences, employees, suppliers and customers, the community and environment, reputation and fairness between members. A board constructed purely around one shareholder’s priorities can find that duty difficult to discharge.

Board construction in specific situations

The principles above apply everywhere, but the weighting shifts considerably with the company’s stage and ownership.

Founder-led companies

The first independent appointment is the most important construction decision a founder makes. The board is often the founder, a co-founder or two and perhaps an early investor. The first non-executive or independent chair needs to be someone the founder respects enough to listen to, with experience of the stage the business is moving into rather than the one it is leaving. Expect the board to formalise in stages: a non-executive chair or senior NED first, then a finance-literate non-executive once the business has external funding or debt, then sector or functional specialists as the strategy firms up. Keep the board small and resist adding friendly advisers as directors when an advisory board would serve.

PE-backed businesses

A PE-backed board typically combines sponsor representatives, an independent chair, one or more independent NEDs and the executive directors, with composition built around the sponsor’s value-creation plan and holding period. The chair is often appointed by the sponsor at or shortly after the deal and may have worked with the investor before. Construction should allow for the exit: if a sale or IPO is likely in three to five years, the board needs transaction experience well before the process starts. Our PE NED hiring guide, linked below, covers sponsor expectations in more detail.

Pre-IPO companies

Companies preparing for a listing face substantial construction work: appointing several independent non-executives to meet Code expectations, establishing properly staffed audit, remuneration and nomination committees, appointing a SID, and often replacing a founder or sponsor chair with an independent one. Investors and advisers will look at the board during the IPO process, so the work needs to start twelve to twenty-four months before the target date. Directors also need time to work together before they face public-market scrutiny.

Listed companies

For listed companies the Code, the Listing Rules diversity disclosures and investor guidelines all shape composition. The main construction challenges are staying ahead of tenure and independence cycles, meeting the senior-positions diversity target through sequencing rather than headcount, and keeping committee composition compliant through every change. AIM companies are not bound by the Code but must adopt a recognised governance code, and many follow the same principles in proportion to their size.

FCA-regulated firms

Regulated firms layer the Senior Managers and Certification Regime onto the skills-and-strategy question. Depending on the firm’s category, board roles such as the chair (SMF9), the chairs of the risk, audit, remuneration and nomination committees (SMF10 to SMF13) and the senior independent director (SMF14) may require regulatory approval before the individual can take up the role. That approval adds time to every appointment and makes succession planning essential. The FCA and PRA have been consulting on reforms to SMCR, so check the current position for your firm before planning a timetable. For non-executive appointments in this sector, see our financial services non-executive recruitment page.

How Exec Capital approaches board construction

Exec Capital treats board construction as governance work that sits alongside the individual appointments that follow from it. The analytical work – skills matrices, gap mapping and sequencing – gets the same rigour we bring to executive search. Where the work leads to several appointments over twelve to thirty-six months, we run them as a single programme rather than unconnected searches, so each brief reflects the appointments before it.

Our approach is straightforward. We start with the strategy and the existing board, build or review the skills matrix with the chair and nomination committee, agree the gaps and the order in which to fill them, and then run each search against a written brief. Shortlists are built to reflect the matrix, not just the role title, and we assess candidates for time capacity, independence and committee fit as well as experience. Searches are run by our specialist team, with Adrian Lawrence FCA overseeing each mandate. For a single board seat, our board of directors recruitment service is the place to start; for a full refresh we begin with a structured conversation about where the board is now and where it needs to be.

Further reading

The primary sources referred to in this guide are the FRC’s UK Corporate Governance Code 2024 and the Wates Principles for large private companies, the FCA’s listing rules on board diversity disclosure, and section 172 of the Companies Act 2006, all linked above. The FRC also publishes supporting guidance alongside the Code, which is worth reading for anyone chairing a nomination committee. Our related service pages and guides are listed in the panel below.

Frequently asked questions

What is board construction?

Board construction is the planned work of deciding what skills, experience and backgrounds a board needs, and then making appointments in a deliberate order to get there. It differs from ad hoc recruitment because it looks several years ahead and links each appointment to the company’s strategy.

How many independent directors should a board have?

For companies applying the UK Corporate Governance Code, at least half the board, excluding the chair, should be independent non-executive directors. Private companies have no fixed requirement, but most benefit from at least one or two genuinely independent voices, particularly once there are external investors or lenders.

How often should a board review its composition?

Annually, usually through the nomination committee and alongside the board evaluation. A deeper review makes sense at major strategic moments such as a funding round, acquisition, change of ownership or preparation for a listing.

Do the FCA diversity targets apply to private companies?

No. The comply-or-explain targets in the UK Listing Rules apply to listed companies. Private and PE-backed companies are not bound by them, although many investors and lenders now expect similar attention to diversity on the boards they back.

Should we appoint the chair or the CEO first?

Where both roles are changing and there is time, many boards appoint the chair first so the new chair can lead the chief executive search. If the CEO change is urgent, the order can be reversed, but the chair brief should then reflect the new chief executive and the relationship the board wants between them.

How long does a board refresh take?

A single non-executive appointment usually takes a few months from brief to start date, longer where regulatory approval is needed. A full refresh is best phased over one to three years so the board keeps its working rhythm and its committees stay properly staffed throughout.