Head of Sustainability — UK Role, Salary & Hiring Guide

A Head of Sustainability runs the sustainability function operationally — managing the team (typically 5–25 FTE), owning the corporate carbon inventory, leading the regulatory disclosure cycle (UK SRS S2, SECR, ESOS, CSRD where applicable), running the materiality assessment, and delivering the transition plan in operational terms.

The role sits below the CSO (where one exists) and reports to the CSO, CFO or COO depending on company structure. See Chief Sustainability Officer for the C-suite role comparison.

UK Head of Sustainability salaries typically range from £100,000 to £165,000 base, with total compensation (including bonus and any LTIP) running £115k–£200k 1.

OneStop ESG 2026 puts the band centre at around £124k. London commands a 15–25% premium 2. FTSE 100 and financial-services roles run at the top of the band; mid-market private companies sit nearer the floor. For Gillespie Manners' Director-of-Sustainability average of £120k cross-check, see 3.

A CSO is a board/C-suite role with capital-allocation authority, profit-and-loss influence, and external face (investor relations, regulators). A Head of Sustainability runs the function operationally — managing the team, owning the inventory, leading the disclosure cycle.

Mid-market UK companies typically have a Head of Sustainability without a CSO; FTSE 100 companies typically have both, with the Head reporting to the CSO.

Often the same role under different titles. "Director" implies director-level seniority (board-adjacent); "Head" implies functional leadership. UK practice is inconsistent.

Where both titles exist at the same company, Sustainability Director typically reports to the CSO or sits on the senior leadership team, while Head of Sustainability runs operations one level below.

There is no single mandatory qualification. Most Heads of Sustainability hold a relevant degree (environmental science, engineering, business or finance) plus one or more UK credentials: IEMA Practitioner Member (PIEMA), Chartered Environmentalist (CEnv) via the Society for the Environment, or chartered accountant (ICAEW/ACCA) plus sustainability specialisation.

Increasingly, candidates from finance and strategy backgrounds are succeeding in the role because connectivity to financial statements (IFRS S2 / UK SRS S2) is now central. See how to become a sustainability consultant for the qualification pathway.

Most mid-market and large UK companies above SECR thresholds have a Head of Sustainability. Highest density: financial services (PCAF financed emissions), oil & gas and utilities (transition pressure), retail and consumer (Scope 3 product-use emissions), real estate (operational + embodied carbon), pharmaceuticals, and increasingly PE-backed portfolio companies.

The role is now standard across FTSE 350.

Most Head-of-Sustainability hires go through retained search or specialist recruitment (typically £15k–£30k fixed retainer or 20–25% of first-year salary on success). The leading UK firms include Acre, EnableGreen, Hanson Search, Principal People, Lewis Davey, Shirley Parsons and Verdant Search — see the UK sustainability recruitment agency guide.

Typical search length: 8–14 weeks. Brief the consultant on your specific regulatory perimeter (UK SRS S2 mandatory date, SECR scope, CSRD exposure) — generalist briefs produce generalist shortlists.

Three shifts: connectivity to finance (the role now sits closer to the CFO under IFRS S2 / UK SRS S2); operational accountability for the transition plan; and assurance pressure (under ISSA (UK) 5000 and the FRC Interim Register).

Mid-market companies are increasingly recruiting Heads who can both run the team and credibly sit in board-level capital-allocation discussions. See sustainability assurance.