Sustainability consultant salary — UK 2026
Twelve sources, every figure cited, and an honest account of why they disagree by as much as £58,000 on the same job title.
The average sustainability consultant salary in the UK — and why no single number is honest
Search this question and you will be given a confident average. The averages you are given range from £36,792 to £95,000. All of them are real. None of them is wrong. They are measuring different things.
| Source | Figure | What it measures | Base |
|---|---|---|---|
| Reed | £36,792 | Advertised salary average | n = 23 live job ads |
| Indeed | £43,456 | Advertised salary average | n = 888 postings, 36 months |
| ISEP | £60,000 | Practitioner median | n ≈ 1,700 professionals |
| Acre / SLR | £76,000 | UK consultancy median | n = 2,340 professionals |
| Acre / SLR | £95,000 | UK in-house median | n = 2,340 professionals |
The spread is not sloppiness. It is three different measurement decisions stacked on top of each other:
Reed and Indeed measure advertised salaries — what employers put in job ads. ISEP and Acre measure reported salaries — what working professionals say they are paid. Advertised salaries skew low, because senior roles are more often advertised as “competitive”.
Reed counts anything titled “sustainability consultant”, which is heavily junior. The Acre census counts sustainability professionals who choose to complete a detailed salary survey, which skews senior and in-house. Same words, different populations.
Reed’s figure rested on 23 live job adverts when we checked it. Indeed’s rested on 888 postings over three years. Acre’s on 2,340 professionals. A number without its sample size is not a statistic, it is a rumour.
need one
For a working UK sustainability consultant in a consultancy, £40,000–£55,000 covers the middle of the market at consultant to senior-consultant grade. Use the level bands rather than any single average, and always check what your source measured.
What each salary source actually measures
The table nobody publishes, and the one that makes every other number on this page interpretable.
| Source | Type of measure | Base | Last updated | Use it for |
|---|---|---|---|---|
| ONS ASHE | Official earnings statistic | 1% of PAYE records; UK sample 174,000 | Oct 2025 (2025 provisional) | Benchmarking against the whole economy |
| National Careers Service | Government careers guidance | ONS ASHE + Labour Force Survey, SOC 2010 | Not stated | A conservative starter-to-experienced span |
| Prospects | Graduate careers guidance | Not stated | Dec 2024 (sustainability consultant profile) | Graduate expectations — but see the staleness note |
| ISEP (formerly IEMA) | Professional body survey | ~1,700 sustainability professionals | 2026 | The profession-wide median |
| Acre & SLR Census | Global professional survey | 2,340 professionals, 76 countries | Jul 2026 | Level bands, and consultancy vs in-house |
| Shirley Parsons | Recruiter survey | 1,000+ UK HSEQ & sustainability professionals | Apr 2025 (2026 edition gated) | Grade averages and year-on-year movement |
| Indeed | Advertised-salary average | 888 postings over 36 months | 1 Aug 2026 | Location comparisons |
| Reed | Advertised-salary average | 23 live postings | Live | Little — the base is too small to be stable |
| Glassdoor / Levels.fyi | Self-reported | Often 1–6 submissions for UK sustainability titles | Rolling | Nothing, at these sample sizes |
rule
We publish a figure only where we can name the publisher, the base and the date. Where we could not verify something — Big Four UK sustainability salaries, and carbon consultant pay specifically — we say so in sources and method rather than fill the gap with a guess.
Photo: Unsplash / Ricardo Gomez Angel
Sustainability consultant salary by level
Six rungs, from graduate to board. This is the chart to use if you are benchmarking your own pay.
| Level | Experience | Range | Median |
|---|---|---|---|
| Graduate / junior | 0–2 years | £27,800–£34,900 | £31,750 |
| Consultant | 2–5 years | £33,000–£48,000 | £40,000 |
| Senior consultant | 5–10 years | £48,000–£65,000 | £55,000 |
| Manager / principal | 10–15 years | £55,000–£77,700 | £64,400 |
| Leadership | 15+ years | £75,000–£125,000 | £95,000 |
| Director / board | Executive | £85,000–£160,000 | £123,816 |
Three things to notice. The jump from senior consultant to manager is the smallest on the ladder in percentage terms — it is a change of responsibility more than a change of pay, and it is where a lot of people move in-house instead. The leadership band is the widest, because it spans a boutique practice lead and a Big Four director. And the graduate band has barely moved in three years, which is why the graduate figures published by careers services look increasingly out of date.
If you want the equivalent ladder for in-house roles rather than consultancy, that is the next chart down — and it pays better at every level.
What Prospects says about sustainability consultant salary
Prospects is one of the two sources people search for by name, so here is exactly what it publishes — and the two problems with it.
one
The profile is dated December 2024 — around twenty months old at the time of writing. Its £20,000 floor is below every other source on this page and below what UK consultancies were advertising for graduates in 2026. If you are using Prospects to set your expectations for a graduate offer, you are anchoring low.
two
Prospects’ separate environmental consultant profile gives a graduate start of £23,000–£25,000 and a consultant grade of £22,000–£35,000 — so the consultant band starts below the graduate band. That is an inconsistency in the source, not in your reading of it.
None of which makes Prospects useless. It is a careers-guidance publisher with real editorial standards, and its own caveat is explicit: “income figures are intended as a guide only”. Use it for the shape of a career, and use the survey data above for the numbers.
The National Careers Service sustainability consultant salary — which does not exist
A lot of people search for this specific page. We checked, and there is no such profile. Here is what there is instead.
12 Aug 2026
The National Careers Service has no “sustainability consultant” job profile. The URL people try returns a 404. The two profiles that do cover this work are environmental consultant and corporate responsibility and sustainability practitioner.
| Profile | Starter | Experienced | Typical hours |
|---|---|---|---|
| Environmental consultant | £25,000 | £50,000 | 37–39 a week |
| Corporate responsibility and sustainability practitioner | £24,000 | £50,000 | 35–39 a week |
| Management consultant (for comparison) | £27,000 | £60,000 | — |
The methodology behind those numbers is worth knowing, because it is better than most careers sites and nobody explains it. National Careers Service salary figures are labour market information derived from the Office for National Statistics, combining the Annual Survey of Hours and Earnings with the Labour Force Survey, organised by four-digit occupation code. The underlying measure is gross weekly pay, and it excludes the self-employed, seasonal workers and the armed forces.
Two caveats the service does not state on the page. It still uses the SOC 2010 occupational classification, while ONS moved to SOC 2020 in 2021 — so the bands are mapped from a superseded scheme. And it does not define what “starter” and “experienced” mean as percentiles, so the two numbers bracket a range of unstated width.
How sustainability pay compares with the UK average
One benchmark worth holding in your head: the median UK full-time salary is £39,039.
That last pair is the most interesting number on this page. Sustainability consultants are classified by government under SOC 2152, environment professionals — a code whose official definition explicitly includes environmental consultants and sustainability officers. Management consultants sit under SOC 2431. The Home Office going rate for the two differs by £13,000.
Two people can do recognisably similar advisory work, for similar clients, and be statistically classified into occupations that the state prices £13,000 apart. If you are negotiating, that classification gap is worth knowing about — the work you describe on your CV determines which comparator your employer reaches for.
Photo: Unsplash / Nicholas DohertySustainability consultant salary in London and across the UK
There is a London premium. It is smaller than most salary pages claim, and the claims that inflate it are built on single-figure samples.
| City | Average advertised salary |
|---|---|
| London | £49,748 |
| Reading | £49,326 |
| Oxford | £44,768 |
| Cardiff | £43,559 |
| Manchester | £41,459 |
| Bristol | £41,247 |
| Leeds | £40,310 |
| Nottingham | £35,510 |
Three published estimates of the London premium, and their bases: 14.5% from Indeed on 888 postings; 27% from ONS across the whole economy, not this occupation; and 39% from Reed, on five London job adverts. We would use the first, note the second as context, and disregard the third.
Worth weighing against the premium: London’s housing costs comfortably exceed a 14.5% salary uplift for most people. The stronger argument for London is not the salary — it is that green roles made up 6.5% of all job adverts in London in the year to March 2026, up from 4.2% in 2019, so the density of opportunity is materially higher.
Consultancy or in-house — which pays more?
In-house, at every level, by roughly a fifth. That is the clearest single finding in the salary data.
| Level | Consultancy median | In-house median | Difference |
|---|---|---|---|
| Junior | £31,750 | £35,000 | +10% |
| Manager | £64,400 | £66,350 | +3% |
| Leadership | £95,000 | £112,000 | +18% |
| Executive (org 1,000+) | £160,000 | £175,000 | +9% |
The pattern is consistent enough across editions of the census to be structural rather than noise. The usual explanations: consultancies carry utilisation risk and price staff against a chargeable rate; in-house roles carry accountability for outcomes and are benchmarked against other functions in the same business, which tend to pay more at equivalent seniority.
What consultancy gives you in exchange is range. Five clients a year for five years is twenty-five organisations’ worth of pattern recognition, which is precisely what makes someone hireable into a senior in-house role later. The common shape of a well-paid career in this field is consultancy first, in-house second — and the pay curve above is one reason why.
Which sustainability specialism pays the most
Sector matters more than job title. These are averages across HSEQ and sustainability roles, not consultant-only figures.
| Sector | Average salary | Year-on-year |
|---|---|---|
| Oil & gas | £85,800 | +8.2% |
| Renewable energy | £82,808 | +13.2% |
| Technology | £80,997 | +20.8% |
Source: Shirley Parsons UK HSEQ & Sustainability Salary and Workforce Insights Report 2025, published April 2025, based on 1,000+ survey responses. These are sector averages across all HSEQ and sustainability roles at all levels, not sustainability-consultant-only figures.
The honest caveat on specialism: we could not find a methodologically sound UK salary figure specifically for carbon consultant, net zero consultant or carbon accountant roles, despite persistent demand for those searches. Recruiters report carbon accounting and ESG data roles growing 12–16% a year, but none publishes an ungated band. Rather than invent one, we have left it out — see what we could not source.
What we can say from the census data is that professionals moving into sustainability from an adjacent field — supply chain, energy, finance — are reported to command a 15–25% increase on their previous salary, which suggests the scarcity premium sits with transferable technical skill rather than with the sustainability label itself.
Twenty years of sustainability consultant earnings
What the ladder looks like plotted against time, with cumulative earnings on hover.
| Years' experience | Median base salary | Cumulative gross earnings |
|---|---|---|
| Year 0 | £31,750 | £0 |
| Year 2 | £40,000 | £71,750 |
| Year 5 | £55,000 | £214,250 |
| Year 8 | £64,400 | £393,350 |
| Year 12 | £95,000 | £712,150 |
| Year 16 | £110,000 | £1,122,150 |
| Year 20 | £123,816 | £1,589,782 |
The curve steepens between years eight and twelve. That is the leadership transition, and it is where the largest single pay step in the whole career sits — roughly a £30,000 jump for those who make it. It is also where the most people leave for in-house roles, which is the same decision viewed from the other side.
Read this as a shape, not a forecast. It assumes uninterrupted progression and no career break; the profession’s own survey reports a 14.7% gender pay gap, up from 8.75% in 2022, which tells you that this curve is not experienced equally.
Photo: Unsplash / Noah BuscherDoes chartership actually raise your salary?
Yes — and the published size of the premium depends on who is publishing it, in a way nobody seems to have noticed.
| Claimed premium | Publisher | Evidence behind it |
|---|---|---|
| +33% | Society for the Environment | Attributed to “a recent survey of IES members”. No year, no sample size, no link. SocEnv is the body that registers CEnv. |
| +24% | Institution of Environmental Sciences | IES 2023 salary survey. Higher median salary for members holding CSci and CEnv. |
| +23% | IEMA (now ISEP) | 2022 member survey, base n ≈ 1,150. CEnv holders averaged £56,837 against a member average of £46,292. |
The two figures that agree — 23% and 24% — come from the organisations that ran the surveys, on stated samples, in stated years. The outlier at 33% is undated, cites no sample, and comes from the body with the strongest promotional interest in the answer. We would plan on roughly a fifth to a quarter, and treat the 33% as marketing.
Two honest qualifications. All three figures are three to four years old, and none of the 2026 surveys breaks out a chartership premium at all. And correlation is doing some work here: the Society for the Environment notes that many consultancies now require CEnv registration for senior grades, so some of the premium is the seniority the charter unlocks rather than the charter itself. That distinction does not change the decision much — if it gates the grade, you still need it.
A curious footnote from the same survey: members reported that they did not feel membership affected their salary, while the data showed it did. Perceived and measured value diverge.
Photo: Unsplash / Li-An Lim
Is demand still growing?
Over a decade, strongly. Over the last measured year, not quite.
| Year | Green jobs (thousand FTE) |
|---|---|
| 2015 | 510.1 |
| 2019 | 545.0 |
| 2021 | 590.0 |
| 2022 | 640.0 |
| 2023 | 662.9 |
| 2024 | 652.1 |
The decade trend is unambiguous: 652,100 full-time equivalent green jobs in 2024, up 27.8% on 2015. The most recent year is a fall of 10,800 FTE, driven by energy-efficient products and waste, partly offset by a 29% rise in nuclear. Note also that ONS revised the series down between its July 2025 and March 2026 editions — these are official statistics still in development, and they move.
The labour-market picture is more encouraging than the jobs count. LinkedIn’s 2025 analysis found UK green hiring growing at 7.8% a year while the supply of green skills grew only 4.3% — demand outpacing supply roughly two to one, for the second consecutive year. And for the first time, more than half of green hires were people applying green skills in roles that are not themselves labelled green.
On the consultancy side specifically, the UK environment and sustainability consulting market was worth £4.1bn in 2024 and grew 8.9%. But contract values were essentially flat over five years while contract numbers more than doubled — more projects, smaller each. That is a market getting busier without getting richer per engagement, which is exactly the pressure that shows up as modest salary growth despite visible demand.
Sustainability consultant day rates
Thinner evidence than the employed salary data, and worth saying so before the numbers.
caution
The day-rate bands come from Leafr, a sustainability freelancer marketplace — a commercially interested party, publishing without a visible date or sample size. We could not independently verify the £532 average it attributes to Indeed, so we have not repeated it as a statistic. Treat these as market colour, not measurement.
The arithmetic worth doing before you leave a salaried role: 220 billable days is an optimistic year for an independent, and most people bill 120–160. At £500 a day, 140 billable days is £70,000 of revenue — before pension, holiday, sick pay, insurance, software and the unpaid time spent selling. That is roughly a £55,000 salaried job, not a £110,000 one.
Photo: Unsplash / Nick FewingsWhat sustainability consultancies charge clients
A different question from salary, asked almost as often, and answered almost nowhere with real data.
Here is the honest position: there is no rigorous published UK dataset on sustainability consulting fees. What exists is market-level data, and it is more useful than the invented project prices circulating elsewhere.
Environment Analyst’s UK market assessment (November 2025 edition) puts the UK environment and sustainability consulting market at £4.1bn in 2024, forecast to reach £5.8bn by 2029. Based on verified data from 27 leading UK firms representing about 78% of the market.
Contract numbers have more than doubled since 2019. Contract values grew at a five-year compound rate of 0.08% — essentially flat in nominal terms, which is a real-terms fall. More work, smaller pieces.
RSK, Tetra Tech, Jacobs, WSP, AECOM and Arup together account for roughly 48% of UK market share, up sharply from 2019. RSK alone is the largest at 13.2% share on £541m revenue.
A second market estimate exists and disagrees: IBISWorld puts UK environmental consultants at £2.7bn across 7,426 businesses. The gap is definitional — IBISWorld scopes to environmental consulting, Environment Analyst includes broader sustainability and ESG strategy work. Both are defensible; neither is the same market.
If you are buying rather than selling, the practical read is that fee pressure is on your side and has been for five years. If you are selling, it explains why headline demand has not translated into headline salary growth. Our carbon reporting software comparison covers the tooling that is absorbing some of the work that used to be billed as consultancy days.
How to raise a sustainability consultant salary
Six moves, ordered by how reliably the data says they work.
Go in-house
The single most reliable uplift in the data: roughly 20% at equivalent seniority, holding at every level of the census. It costs you variety, not money.
Get chartered
A measured 23–24% premium for CEnv in two independent surveys, and increasingly a gate on senior consultancy grades rather than a bonus on top of them.
Move to a large organisation
ISEP found large employers pay £15,000–£20,000 more than small ones for comparable roles — one of the biggest single differentials in the survey.
Specialise where scarcity is
Carbon accounting and ESG data roles are the fastest-growing niches. Professionals arriving from adjacent technical fields report 15–25% increases — the premium is on the transferable skill.
Reframe the comparator
The government prices environment professionals £13,000 below management consultants. If your work is advisory and commercial, describe it that way — the comparator your employer reaches for is partly in your control.
Time it to the reporting cycle
Demand for regulatory reporting skills concentrates ahead of any first mandatory UK SRS S2 reporting, which the FCA has proposed — with Scope 3 and the non-climate parts of S1 on comply-or-explain — for accounting periods beginning on or after 1 January 2027 (CP26/5, consultation closed March 2026; Policy Statement expected autumn 2026). Scarce, dated, non-deferrable work is the strongest negotiating position there is.
Set against all of that: ISEP’s 2026 survey found fewer professionals received a rise than the year before, and salary decreases almost tripled. Self-employed practitioners more often reported falling than rising income. The market is not uniformly generous, and a negotiation that assumes it is will go badly.
ESG consultant salary in the UK
An ESG consultant salary in the UK tracks the same bands as a sustainability consultant’s — because none of the surveys on this page treats “ESG consultant” as a job title of its own.
ISEP’s State of the Sustainability Profession survey, the Acre & SLR Sustainability Census and the Home Office’s SOC 2020-based going rate all fold ESG-titled roles into the same sample as sustainability and environmental roles — none of them breaks “ESG consultant” out on its own. So the honest answer is: use the level ladder above. £33,000–£48,000 at consultant grade, rising to £48,000–£65,000 as a senior, on the Acre & SLR Sustainability Census bands.
Not as a separate salary line — as growth. ESG data and reporting work is named in the Acre & SLR census as one of the profession’s fastest-growing niches, and professionals moving into it from an adjacent technical field — finance, data, audit — are reported to command a 15–25% increase on their previous salary. That is consistent with ESG being a specialism inside sustainability, priced like one, rather than a separately-surveyed profession.
“ESG,” “sustainability” and “environmental” consultant job titles overlap heavily in UK job adverts, and employers use them close to interchangeably for recognisably similar work — climate risk assessment, disclosure and reporting frameworks. For the discipline itself, and what an ESG consultant does differently day to day, see our dedicated ESG consultants guide.
Senior sustainability consultant salary
A senior sustainability consultant in the UK typically earns £48,000–£65,000, median £55,000 — the five-to-ten-year band on the level ladder above.
That range comes from the Acre & SLR Sustainability Census, and it brackets a corroborating figure from a different survey with a different method: Shirley Parsons’ 2025 UK HSEQ & Sustainability Salary Survey puts advisor/consultant grade at £48,546 and manager grade at £63,741, which sit at the bottom and top of the same band. Two surveys, different samples, similar answer — the closest this page gets to convergence.
Chartered Environmentalist (CEnv) registration is increasingly a requirement for senior consultancy grades rather than a bonus on top of them — see does chartership actually raise your salary? The next rung up, manager/principal, is the smallest percentage jump on the whole ladder: it is a change of responsibility more than of pay, and it is where a lot of people move in-house instead, for roughly a 20% premium at equivalent seniority.
If you are benchmarking your own pay at this level, use the range rather than either single figure — and see salary by location for how much of the spread within it is geography rather than seniority.
Environmental consultant salary UK
The UK government’s own occupational pay data puts environmental consultants at a median of £37,200 a year.
That figure is the Home Office’s Immigration Rules going rate for SOC 2020 code 2152, Environment professionals — a code whose official title list names “Environmental consultants” directly, alongside energy managers, environmental scientists and sustainability officers. Four things travel with it: it is a median, on a 37.5-hour week, derived from ASHE 2024 data applied from 22 July 2025 — so it lags — and it is a whole-occupation figure, not broken out by seniority or specifically by the job title “environmental consultant.”
| Source | Starter | Experienced | Basis |
|---|---|---|---|
| National Careers Service | £25,000 | £50,000 | ONS ASHE + Labour Force Survey, 37–39hr week |
| Prospects | £23,000–£25,000 | £22,000–£35,000 (consultant grade) | Graduate careers guidance |
| Home Office going rate | — | £37,200 (median) | SOC 2020 2152, ASHE-derived |
Two named UK careers publishers run a dedicated “environmental consultant” job profile, separate from their “sustainability consultant” one — see the National Careers Service comparison above and what Prospects says for the fuller picture, including where Prospects’ own two profiles disagree with each other. The bands do not match exactly across publishers because each runs its own survey question under the same occupation code, not because the job itself pays differently depending on what you call it.
Carbon consultant salary UK
There is no dedicated, sample-based UK salary survey for the job title “carbon consultant.” We looked. Here is what the closest sourced data actually says instead of a made-up number.
| Closest sourced proxy | Figure | What it actually measures |
|---|---|---|
| Home Office going rate, SOC 2152 | £37,200 | Whole-occupation median for “environment professionals”, not carbon-specific |
| Shirley Parsons, oil & gas sector average | £85,800 | All HSEQ & sustainability roles in that sector, all levels — not carbon-consultant-only |
| Shirley Parsons, renewable energy sector average | £82,808 | Same caveat — a sector average, not a job-title figure |
| Independent day rate, mid-market | £500–£550/day | Leafr, a freelancer marketplace — undated, commercially interested |
The two sectors where carbon-focused consulting concentrates — oil & gas and renewable energy — do have the highest sector averages in Shirley Parsons’ 2025 survey, which is suggestive but not proof of a carbon-specific premium: those averages span every HSEQ and sustainability role in the sector, not carbon consultants alone. What we can say with more confidence is the direction of travel: carbon accounting is named in the Acre & SLR census as one of the fastest-growing specialisms, and professionals arriving in it from an adjacent technical field report 15–25% pay increases on their previous salary.
If a page quotes you a specific “average carbon consultant salary” with no publisher, sample size or date attached, that is exactly the rumour our bottom line below warns about, not a statistic.
Any salary figure without a publisher, a sample size and a date is a rumour with a currency symbol in front of it.
The bottom line · Photo: Unsplash / name_gravitySustainability consultant salary — frequently asked questions
There is no single trustworthy average, because the published figures measure different things. Advertised-salary averages sit at £36,792 (Reed, 23 postings) and £43,456 (Indeed, 888 postings). Professional survey medians sit at £60,000 (ISEP, ~1,700 respondents, all sustainability roles) and £76,000 for UK consultancy specifically (Acre & SLR Census, 2,340 respondents). For a working consultant in a UK consultancy, £40,000–£55,000 covers the middle of the market at consultant to senior grade.
Indeed puts the London average at £49,748 against a UK average of £43,456 on the same basis — a premium of about 14.5%, from 888 job postings. Other published London premiums are higher but rest on much smaller samples: Reed implies 39% from five London adverts. For context, the ONS economy-wide London premium across all occupations is about 27%. London’s stronger argument is opportunity density rather than pay: green roles were 6.5% of all London job adverts in the year to March 2026.
We could not source a reliable figure and would rather say so. Glassdoor pages for Big Four UK sustainability roles return US dollar values on samples as small as one to six submissions, which is not a basis for a benchmark. What is defensible is general Big Four UK consulting graduate pay, compiled from aggregators: roughly £32,000–£37,000 base with a £2,000–£3,000 bonus at Deloitte, PwC, EY and KPMG. Treat any specific Big Four sustainability salary you see quoted with suspicion unless it names a sample size.
By sector rather than job title: oil and gas at £85,800 average, renewable energy at £82,808 and technology at £80,997, from Shirley Parsons’ 2025 survey of 1,000+ UK HSEQ and sustainability professionals. Those are all-level sector averages, not consultant-only figures. We could not source a methodologically sound UK figure specifically for carbon consultant, net zero consultant or carbon accountant roles.
Commonly quoted bands are £300–£400 a day for early-career compliance work, £500–£550 for the mid-market, and £1,000–£2,000+ for specialist or former director-grade freelancers. These come from a sustainability freelancer marketplace rather than a survey, with no published sample or date, so treat them as market colour. Remember the arithmetic: at £500 a day and 140 billable days, gross revenue of £70,000 is roughly equivalent to a £55,000 salaried role once you fund pension, holiday, insurance and selling time.
Modestly, and less than demand headlines suggest. Hays reported sustainability salaries rising 2.6% against a UK average of 2.4% in its 2025 guide, with 94% of sustainability employers increasing pay — though Hays plc’s own audited FY25 accounts run the other way, net fee income £972.4m against £1,113.6m and roles filled 257,900 against 282,700, a 12.7% and 8.8% fall. Both can be true; the audited half is the one usually left out. Shirley Parsons recorded +5.9% for managers and +2.1% at director level in 2025. But ISEP’s 2026 survey found fewer professionals received a rise than the previous year and salary decreases almost tripled. The market-level explanation is that consulting contract values have been flat for five years even as contract numbers doubled.
Chartered Environmentalist (CEnv) is the best-evidenced. Two independent surveys put the premium at 23% (IEMA 2022, n ≈ 1,150) and 24% (IES 2023); the Society for the Environment claims 33% but publishes no date or sample. Increasingly CEnv is a requirement for senior consultancy grades rather than a bonus on top of them. ISEP Practitioner membership — PISEP since the 17 July 2025 rebrand, PIEMA before it — is the other benchmark named by careers publishers. All the premium figures are three to four years old and none of the 2026 surveys breaks chartership out separately.
On pay alone, in-house — by roughly 20% at equivalent seniority, and the gap holds at every level of the Acre & SLR census: junior £31,750 vs £35,000, manager £64,400 vs £66,350, leadership £95,000 vs £112,000, executive £160,000 vs £175,000. Consultancy’s compensating advantage is exposure: many organisations’ problems in a short time, which is what makes people hireable into senior in-house roles later. The common shape of a well-paid career is consultancy first, in-house second.
Two forces pull in opposite directions. Upward: UK green hiring is growing about 7.8% a year against green skills supply growing 4.3%, and first mandatory UK SRS S2 reporting is proposed for accounting periods beginning on or after 1 January 2027, which concentrates demand for regulatory reporting skills. Downward: green jobs fell by 10,800 FTE in the most recent ONS year, consulting contract values have been flat for five years, and ISEP recorded rising salary decreases in 2026. Expect scarce technical specialisms to grow faster than generalist consultancy roles.
Yes, and it has widened. ISEP’s 2025 survey recorded a 14.7% gender pay gap among sustainability professionals, up from 8.75% in 2022 and back to 2018 levels. Shirley Parsons recorded 12.0% across UK HSEQ and sustainability roles in 2025 — men averaging £68,267 against women averaging £60,942. Both are self-reported survey measures rather than statutory gender pay gap reporting, and the two use different populations, but they agree on direction and rough magnitude.
Not formally, though it is common: 64% of respondents to the Acre & SLR census hold a master’s degree. More striking is that 58% came into sustainability from another profession entirely, which suggests the route in is more often transferable experience than a specific qualification. No published UK dataset isolates the salary effect of a master’s degree in this field from the seniority and sector effects around it, so we cannot tell you what it is worth in pay.
Where every number on this page came from
All figures re-verified on 12 August 2026. Where a source is gated, dated or commercially interested, we say so at the point of use.
Official statistics
Professional surveys
Careers guidance and market data
could not
source
In the interest of not filling gaps with guesses: reliable GBP Big Four sustainability consultant salaries (Glassdoor returns dollars on samples of one to six); carbon consultant, net zero consultant and carbon accountant UK salaries specifically; the ONS ASHE median for SOC 2152 itself, as opposed to the Home Office going rate derived from it; Shirley Parsons’ and Hays’ 2026 bands, which are behind download gates; and any chartership premium more recent than 2023. We have also deliberately avoided several aggregator “salary surveys” that re-publish other people’s numbers without attribution, because citing them would launder unsourced figures.
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JobsSustainability manager jobs
What the role covers and where the vacancies are.
AdjacentESG consultants
The overlapping discipline, and how the pay compares.
HiringSustainability recruitment
How the market hires, and what employers screen for.
ToolsCarbon reporting software
The platforms absorbing work once billed as consultancy days.
Know the number. The next question is what the market is actually hiring for — and which standard is creating the demand.
See what UK SRS S2 requires Or start at the beginning — how to become a sustainability consultant