Chief Sustainability Officer Recruitment

Chief Sustainability Officer Recruitment

Exec Capital provides senior Chief Sustainability Officer (CSO) recruitment for UK firms across listed, private, PE-backed and family-controlled businesses. The CSO role has evolved from a peripheral compliance function into a substantive C-suite appointment over the past decade, with strong CSOs now leading material commercial strategy alongside reporting and stakeholder dimensions. UK CSO senior hiring is shaped by the UK ESG reporting framework (climate disclosure that began under TCFD and is now moving to the UK Sustainability Reporting Standards, transition plans and wider sustainability disclosure), the net zero commitments embedded in major UK firms’ strategic plans, the supply chain due diligence dimension, and a candidate market that draws from a tight pool of senior leaders with both real ESG depth and credible commercial track records.

Our practice covers UK senior CSO appointments across listed and pre-IPO firms with substantial ESG reporting obligations, PE-backed firms calibrating sustainability to value-creation theses, and private mid-market firms responding to customer and stakeholder expectations on sustainability. Every search is run by our specialist team, with Adrian Lawrence FCA overseeing each mandate.

This page is written for the employer: the chair, CEO, investor or people director deciding whether to hire a Chief Sustainability Officer, how to scope the role, how to assess candidates and which engagement format fits. If you already know the format you need, go straight to the service page: permanent CSO recruitment, a fractional CSO for one to three days a week, or an interim CSO for a fixed-term programme or gap. For director-tier sustainability leadership below the executive committee, see our Sustainability Director service, linked further down this page.

How it works

A CSO search follows the same disciplined sequence as any C-suite appointment, with extra weight on the scoping stage because the role varies so much between firms. We agree the timetable with you at briefing, and it depends on the seniority of the role, the format, notice periods and how many decision-makers sit on the interview panel.

What the Chief Sustainability Officer role covers

The CSO role splits across four dimensions, with relative weighting varying by firm.

Strategy and commercial integration. The dimension that distinguishes strong CSO appointments. Sustainability strategy as part of broader commercial strategy — product portfolio implications, customer expectations, market positioning, supply chain implications.

Reporting and disclosure. Compliance with UK ESG reporting frameworks (climate-related disclosure that originated with TCFD, the UK Sustainability Reporting Standards, transition plans), and (for listed firms) engagement with shareholder advisory bodies and ESG ratings agencies.

Operational delivery. Decarbonisation programmes, scope 1, 2 and 3 emissions reduction, supply chain due diligence, water and waste management.

Stakeholder and external engagement. Investor engagement on ESG, customer-led sustainability requirements, regulator engagement, and broader public-policy dimensions.

When you write the brief, rank these four dimensions for your own business rather than asking for all of them equally. A consumer brand whose largest customers now score suppliers on emissions data needs a CSO weighted to commercial integration and supply chain; a newly listed company facing its first sustainability report needs disclosure, controls and assurance-readiness first; an industrial business with a heavy scope 1 footprint needs someone who has run capital programmes. The ranking tells the market which kind of CSO you want, and it stops the interview panel from marking candidates on dimensions that do not matter for the next three years. Our Chief Sustainability Officer job description sets out the full list of responsibilities you can draw from.

Scoping the brief: strategic or reporting-led?

CSO appointments are particularly sensitive to the question of where the role actually sits in the firm’s strategic agenda. Strong CSO candidates evaluate firms carefully on whether sustainability is a commercial dimension of the business or a reporting function, and the answer usually becomes clear within two or three conversations. Specifications that present sustainability as central to commercial strategy when the firm’s actual position is reporting-led lose strong candidates fast. The strongest CSO searches start with honesty about where the firm currently is and where it genuinely wants to take the role.

That is why we work the strategic-versus-reporting question through at the front of every CSO brief. Candidates will test three things: the board’s real engagement with sustainability, how far sustainability is integrated into commercial decisions, and the firm’s track record on the commitments it has already made. Five questions help settle the scope before the search starts:

• Who does the CSO report to? A direct line to the CEO signals a strategic role. A line into the CFO, general counsel or company secretary usually signals a disclosure and controls role. Both are legitimate; they attract different people.
• Will the CSO sit on the executive committee? If the answer is no, the title “Chief” may oversell the role, and a Sustainability Director or Head of ESG title may attract better-matched candidates.
• How much budget and team come with it? A CSO with no budget and a single analyst can coordinate but cannot deliver a decarbonisation programme. Be specific about what the role controls and what it influences.
• What is the board’s exposure? Will the CSO present to the board or a board sustainability committee, and how often? Our guide to the Chief Sustainability Officer’s board role covers the governance options.
• What has to be true in two years? Name the outcomes: a first compliant sustainability report, an approved transition plan, a supplier data programme, a reduction target met. These become the success measures you assess against.

If the honest answer is that the business needs strong reporting and a credible plan, but not yet a full-time executive, that is useful to know early. It often points to a fractional appointment now and a permanent hire later, which costs less and gives the eventual permanent CSO a better platform to inherit.

The UK reporting and regulatory backdrop

The regulatory picture has moved a long way in a short time, and candidates will expect you to know where your business sits. Getting this right in the brief also tells you which skills are essential and which are nice to have. The main points as at November 2026:

From TCFD to the UK Sustainability Reporting Standards

The Task Force on Climate-related Financial Disclosures (TCFD) completed its work and disbanded in 2023, with monitoring passed to the ISSB. Its framework still underpins much UK climate reporting, but the direction of travel is now the ISSB-based standards. The government published the final UK Sustainability Reporting Standards, UK SRS S1 and UK SRS S2, on 25 February 2026, available for voluntary use. S1 covers general sustainability-related financial disclosures; S2 covers climate.

Listed companies: FCA PS26/19

For listed issuers, the FCA’s policy statement PS26/19, published on 30 September 2026, replaces the TCFD-aligned Listing Rules disclosures with requirements aligned to UK SRS. The rules apply on a comply-or-explain basis to accounting periods starting on or after 1 January 2027, so first reports land in 2028, with transitional relief for scope 3 emissions and for the wider S1 disclosures. In practice, a listed company hiring a CSO in 2026 or 2027 is hiring the person who will own that first UK SRS-aligned report, and that should be explicit in the brief.

Large private companies and LLPs

Large UK companies and LLPs above the size thresholds in the Companies Act climate-related financial disclosure regulations already report on climate governance, risk, strategy and metrics in their annual reports. The government has also consulted on transition plan expectations. Private-company CSOs therefore need disclosure capability too, even where the stronger pull comes from customers and lenders rather than regulators.

Financial services: the anti-greenwashing rule

For FCA-authorised firms, the anti-greenwashing rule has applied since 31 May 2024: sustainability references in products and services must be fair, clear and not misleading, and consistent with the product’s sustainability profile. The FCA’s finalised guidance FG24/3 explains what it expects. A CSO in a regulated firm therefore needs to work closely with compliance; where the firm also needs SMF16 or SMF17 cover, our fractional Chief Compliance Officer service can sit alongside the sustainability hire.

EU CSRD after the Omnibus

The EU’s Corporate Sustainability Reporting Directive was narrowed substantially by the Omnibus simplification package. For most UK groups, the practical position now is that they come into scope only if their EU turnover exceeds €450 million, with reporting from financial year 2028. Many UK mid-market businesses that were preparing for CSRD are no longer in scope, which changes the profile of CSO they need: less EU double-materiality machinery, more focus on UK SRS, customer requirements and decarbonisation delivery. UK groups with large EU operations should still take advice on their own position.

None of this means the CSO should be a compliance officer. It means the person needs enough command of the reporting regime to own it with confidence, so that the rest of their time goes on the commercial and operational work that creates value.

When to hire a Chief Sustainability Officer: permanent, fractional or interim

The format decision is as important as the person. A permanent CSO is the right answer when sustainability is a lasting part of the commercial strategy and there is enough work for a full-time executive with a team. A fractional CSO suits a business that needs senior judgement, a strategy and a first report, but not five days a week. An interim CSO suits a fixed-term programme, a gap between permanent appointments or a deadline such as a first listed-company report. Part-time permanent arrangements sit between permanent and fractional and work well where the business wants the person on its own payroll.

Many businesses move along this table over time: a fractional CSO builds the strategy and the first report, an interim covers a peak, and a permanent CSO is appointed once the role has a team and a budget. Our wider fractional C-suite service explains how part-time executives fit alongside a permanent leadership team.

Chief Sustainability Officer vs Sustainability Director vs Head of ESG vs EHS Director

Title confusion is one of the commonest reasons sustainability searches stall. The same title means different things in different firms, and candidates read the title as a signal of level, reporting line and scope. Use the table to decide which role you are actually hiring.

If your scoping lands in the Sustainability Director or Head of ESG column, hiring at that level is usually faster, the pool is wider and the package is easier to justify. If it lands in the CSO column but the business is not yet ready for an executive committee seat, a fractional CSO is often the bridge.

The candidate pool

The UK senior CSO candidate pool is genuinely tight at the senior end. Five pools recur.

• Sitting CSOs at peer firms. Most direct pool.
• Step-up candidates from Heads of Sustainability roles. Natural growth pool.
• Senior environmental and ESG specialists from consulting practices. Big Four sustainability practices, specialist ESG advisory firms.
• Senior leaders from regulatory and policy backgrounds. Particularly relevant for firms in regulated sectors.
• Cross-functional senior leaders with substantive prior sustainability work. Operations, supply chain, or strategy backgrounds with sustainability dimensions.

Each pool brings a different risk. Sitting CSOs are the safest choice but the hardest to move, and they will compare your role closely with what they already have. Step-up Heads of Sustainability are often excellent on delivery but may not yet have held their own at an executive committee or in front of investors, so you need to test that directly. Consulting candidates bring breadth across many clients and strong knowledge of the standards, but some have not had to deliver a programme inside a business with limited budget and competing priorities. Regulatory and policy candidates understand the direction of travel but may need a strong finance or operations partner. Cross-functional leaders bring commercial credibility, and you need to check that their sustainability depth is real rather than a single project.

For most UK mid-market and PE-backed businesses, the strongest shortlists combine two or three of these pools rather than relying on one. That is also where a search firm adds most value: the best candidates in the cross-functional and step-up pools are rarely looking, and they do not describe themselves as CSOs on paper.

Assessing Chief Sustainability Officer candidates

Sustainability is an area where vocabulary is easy to learn and delivery is hard. The assessment process needs to separate candidates who have written strategies from those who have carried them out. A structured process with the same questions for every finalist makes that much easier; our executive interview guide for boards sets out the general approach.

What to test

• Commercial judgement. Ask for an example where a sustainability decision changed a product, a price, a customer contract or a capital allocation, and what the financial effect was.
• Delivery record. Ask for a reduction target the candidate owned, how it was measured, what got in the way and whether it was met. Probe scope 3 in particular, where data is hardest.
• Reporting command. Ask how they would prepare the business for a first UK SRS-aligned report and what controls they would put around the data. Listen for assurance-readiness, not just templates.
• Influence without authority. Most CSOs depend on operations, procurement and finance to deliver. Ask how they won budget and changed behaviour in teams they did not run.
• Board and investor presence. Ask what they have presented to a board or investor committee, what was challenged and how they responded.
• Judgement on claims. Ask for an example of a claim they stopped the business making. Candidates who understand greenwashing risk will have one.

Who should interview

The CEO and CFO should both see finalists: the CEO to judge strategic fit, the CFO because disclosure, capital allocation and data controls all touch finance. For listed businesses, the chair or the chair of the audit or sustainability committee should meet the preferred candidate. In PE-backed businesses, the operating partner or investment director usually wants a conversation about how sustainability supports the value-creation plan and the exit story.

A short case exercise

A practical exercise works well for this role. Give finalists a short pack (a summary of your emissions profile, a customer requirement and a board concern) and ask for a 20-minute view of priorities for the first year. It shows how they think, how they handle incomplete data and whether they can communicate to a non-specialist board.

Referencing

Take references from people who worked alongside the candidate on delivery, not only from line managers: a procurement director, a site leader, an audit partner. Ask specifically what changed because of the candidate. Our executive reference checking guide covers structured referencing for senior hires.

Common mistakes in Chief Sustainability Officer recruitment

Most CSO searches that fail do so for reasons that are visible at the start. The patterns we see most often:

• Overselling the role. Describing a reporting-led position as a strategic one. Strong candidates find out in the interviews, and either withdraw or join and leave within a year.
• Hiring for vocabulary rather than delivery. Choosing the candidate who speaks most fluently about frameworks, rather than the one who has moved a number in a real business.
• No budget or team. Appointing a CSO with responsibility for targets but no control over the spend, people or suppliers needed to meet them.
• Leaving finance out. Running the process without the CFO, then finding the CSO and finance disagree on data ownership, controls and capital allocation.
• Wrong format. Hiring a permanent executive for what is really an 18-month reporting and planning project, or asking a fractional CSO to run a full operational programme.
• Ignoring the regime. Briefing for CSRD when the business is no longer in scope, or missing the listed-company timetable under PS26/19.

Each of these is cheaper to fix at the briefing stage than after an appointment. That is why we spend time on scope and format before we approach candidates.

Compensation and Package Structure

There is no single market rate for a Chief Sustainability Officer, because the role ranges from a reporting-led director with a CSO title to a full executive committee member in a large listed group. The package should follow the scope you settled at the briefing stage, and comparing it with the packages of your other executive committee members is usually more useful than any published average. Our C-suite salary guide gives sourced context for senior executive pay.

• Base salary. Set by level, reporting line and the size of the business. A CSO on the executive committee of a listed group sits in a very different bracket from a mid-market Head of Sustainability.
• Annual bonus. Increasingly linked partly to sustainability measures (emissions reduction, supplier data coverage, reporting milestones) alongside company financial performance. Make sure the measures are ones the CSO can influence and that are measurable.
• Long-term incentives. In listed companies, an LTIP in line with other executives; in PE-backed businesses, management equity or a sweet-equity allocation. Sustainability measures in LTIPs need careful design to avoid rewarding activity rather than outcomes.
• Benefits and flexibility. Pension, car or allowance and flexible working. Many senior sustainability candidates place weight on credible flexibility and on the firm’s own conduct, such as travel policy.
• Interim and fractional. Engaged on a day rate rather than a salary; the day rate quoted by us includes our fee. The rate reflects seniority, days per week and the length and intensity of the assignment.

Buy-outs of unvested bonus or LTIP awards are common when moving a sitting CSO, and they need planning early in the process. Our executive offer construction guide explains how to build an offer that a senior candidate will accept and that the remuneration committee can defend.

What a Chief Sustainability Officer typically delivers in the first 90 days

A good first 90 days creates a baseline, a plan and early credibility with the executive team. Agree the priorities before the start date so that the CSO and the CEO judge progress against the same measures. Typical outputs:

• Days 1–30: listen and baseline. Meetings with every executive committee member, key customers and the largest suppliers; a review of existing commitments, reports, ratings and data sources; an honest view of the quality of scope 1, 2 and 3 data.
• Days 31–60: gaps and risks. A gap analysis against the reporting regime that applies (UK SRS, PS26/19 for listed issuers, Companies Act climate disclosure, or customer frameworks); a review of public claims for greenwashing risk; identification of the two or three programmes with the greatest commercial and emissions effect.
• Days 61–90: plan and governance. A sustainability strategy or refresh tied to the business plan; a reporting roadmap with owners and controls; a proposal for board oversight and the sustainability committee agenda; a team and budget request based on what the plan needs.

For an interim or fractional CSO, the same structure applies but compressed, and the plan should end with a clear handover. Our executive onboarding guide covers how to set up a senior hire to succeed.

How we work

We run CSO searches on a retained basis, with engagement running through to the candidate’s first day in role. Our specialist team runs each CSO mandate, with Adrian Lawrence FCA overseeing it, from the brief, through market mapping and engagement, to offer negotiation and the onboarding work that follows.

In practice that means one point of contact throughout, a written brief that you sign off before we approach anyone, regular updates on who we have spoken to and what the market is telling us, and candid feedback if the brief or the package is out of line with what the market will accept. Because Adrian is a Chartered Accountant who has worked at C-suite level, we are comfortable testing the finance and disclosure side of the role as well as the strategic side, which matters for a role so closely tied to reporting.

Confidentiality is built in. Many CSO searches are run while a current incumbent is still in post or before a strategy is announced, so we approach candidates without naming the client until both sides are ready.

Engagement and fees

The fee structure for each search is agreed with you at briefing, in writing, before work starts. The general shape:

• Permanent searches are normally run on a retained basis, which gives the search priority, a defined process and a dedicated team. We explain the differences with contingent recruitment in our retained vs contingent executive search guide.
• Interim and fractional appointments are charged on a day-rate basis. The day rate we quote includes our fee, so you see a single all-in figure.
• What is included: scoping and brief writing, market mapping, direct approach, screening and written assessments, interview coordination, referencing support, offer negotiation and contact through onboarding.

If you are not yet sure whether the role should be permanent, fractional or interim, start with a conversation. We will give you a straight view on which format fits before any terms are agreed.

Who we place

We place Chief Sustainability Officers and senior sustainability leaders for UK businesses that include:

• Listed and pre-IPO companies preparing for UK SRS-aligned disclosure and investor scrutiny.
• PE-backed portfolio companies where sustainability forms part of the value-creation plan and exit story; see our private equity executive search practice.
• Family-owned and private mid-market businesses responding to customer, lender and supply chain requirements.
• Manufacturers and industrial businesses with significant operational emissions and capital programmes.
• Energy, utilities and renewables businesses, where sustainability is the product as well as a disclosure requirement; see renewable energy executive recruitment.
• Consumer, retail and FMCG brands facing customer and retailer scrutiny of products and packaging.
• Financial services firms where the anti-greenwashing rule and product disclosures apply.

Other ways to hire sustainability leadership

This page sets out how to decide and run the hire. Our service pages cover each route in detail: permanent Chief Sustainability Officer search, fractional CSO appointments one to three days a week, interim CSO assignments for fixed-term programmes, and Sustainability Director recruitment for director-tier roles. If you are also building out the wider leadership team, our interim executive recruitment service covers interim leaders across every C-suite function, and our guide on how to hire a Chief Sustainability Officer or Chief ESG Officer gives a shorter checklist.

Frequently asked questions

What does a Chief Sustainability Officer do?

A CSO owns the company’s sustainability strategy and its integration into commercial decisions, climate and sustainability reporting, decarbonisation and supply chain programmes, and engagement with investors, customers and regulators. The weighting between these depends on the business.

Does my business need a Chief Sustainability Officer?

You need a CSO when sustainability affects products, customers, financing or regulation enough to justify executive ownership. If the main need is reporting and a plan, a fractional CSO or a Sustainability Director may be the better fit for now.

Who should a Chief Sustainability Officer report to?

For a strategic role, the CEO, with regular access to the board or a board committee. A reporting-led role often sits under the CFO or general counsel. The reporting line is one of the strongest signals candidates read.

What is the difference between a CSO and a Sustainability Director?

A CSO is an executive committee role with overall accountability for sustainability as part of strategy. A Sustainability Director usually runs the programme and the reporting, often reporting into the COO, CFO or a CSO. See the comparison table above.

Should we hire a permanent, fractional or interim CSO?

Permanent for a lasting executive role with a team; fractional for senior judgement on one to three days a week; interim for a fixed-term programme, a gap or a reporting deadline. Many businesses start fractional and move to permanent.

Do UK companies have to report under the UK Sustainability Reporting Standards?

UK SRS S1 and S2 were published in February 2026 for voluntary use. Listed issuers will report against UK SRS on a comply-or-explain basis under FCA PS26/19 for periods starting on or after 1 January 2027. Large private companies continue to report under the Companies Act climate disclosure rules.

How long does Chief Sustainability Officer recruitment take?

It depends on the format, the seniority and candidates’ notice periods. Interim and fractional appointments are usually quicker than permanent ones. We agree the timetable with you at briefing.

What qualifications should a CSO have?

There is no single required qualification. Look for evidence of delivery, commercial judgement and command of the reporting regime. Environmental, engineering, finance or sustainability qualifications are useful supporting evidence, not substitutes for a delivery record.

How are your fees structured?

Permanent searches are normally retained, with the fee structure agreed at briefing. Interim and fractional appointments are on a day rate that includes our fee.

Is the CSO an FCA senior manager function?

No. There is no dedicated sustainability SMF. In FCA-regulated firms, responsibility for climate-related financial risk is usually allocated to an existing senior manager, and the CSO works alongside compliance and risk.

For candidates

If you are a sustainability leader looking for a CSO, Sustainability Director, interim or fractional role, register with Exec Capital and see our current opportunities. We treat every approach in confidence.

Further reading

For our Sustainability Director recruitment service (Director-tier appointments below the C-suite), see Sustainability Director recruitment. For role-specific senior hiring guides, see our CEO hiring guide, COO hiring guide, and the rest in our Knowledge Centre.

For UK ESG reporting and sustainability frameworks, see the FRC, the FCA for listed-firm disclosure requirements (linked above), and the Climate Change Committee. For governance frameworks underpinning CSO appointments, see the UK Corporate Governance Code.