Sustainability Consultant

Sustainability consultants advise organisations on how to reduce their environmental impact and meet climate, social and governance commitments - working out a client's carbon footprint, finding ways to cut it, and helping them report on it credibly. Clients range from property developers and manufacturers to councils, retailers and investors. Much of the work is data analysis, research and report writing, delivered as projects with deadlines and a fee attached.

Starting salary: £25k–£32k
Live graduate jobs: 1 open now
Main way in: Graduate schemes at large consultancies and…
They usually ask for: A degree in environmental science, geography, engineering…

Approximate graduate salary

Typically around £25,000–£32,000 to start, though this varies widely - larger consultancies and London roles sit at or above the top of that range, while smaller specialist firms and roles outside the South East often start lower.

What you'd actually do

Collecting and cleaning client data - energy bills, fuel use, travel records, supplier spend - and putting it into spreadsheets or carbon accounting software to calculate greenhouse gas emissions
Researching regulations, standards and frameworks (things like SECR reporting rules, the Science Based Targets initiative, or BREEAM for buildings) and working out what a particular client actually has to comply with
Writing sections of reports and slide decks that explain findings to clients - usually drafted by a junior, then marked up by a senior consultant and rewritten
Joining client calls and site visits, often taking notes or walking a building to check what heating, lighting and insulation is actually installed

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Modelling scenarios - for example, what happens to a client's emissions and costs if they switch their fleet to electric vehicles or change a supplier
Supporting bids and proposals: pulling together case studies, writing method sections, helping cost up how many days a project will take
Tracking your time against project codes, which is how consultancies bill clients and measure whether a project is profitable

How graduates get in

Graduate schemes at large consultancies and engineering/built-environment firms - the most common structured route, usually with autumn application deadlines in the year before you start, and typically including online tests, a video interview and an assessment centre
Direct entry as a graduate analyst or assistant consultant at a smaller specialist sustainability or ESG consultancy - very common, advertised ad hoc through the year rather than on a fixed cycle, and often requiring you to apply with a CV and covering letter rather than a long form
Moving across internally from another team - people frequently start in engineering, audit, risk, planning or facilities management at a larger firm and transfer into the sustainability practice once they have a technical base
A relevant master's (environmental management, sustainability, carbon management, environmental engineering, climate change) - not required everywhere but common, and useful if your first degree is unrelated

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Summer internships and industrial placement years with consultancies, which frequently convert into graduate offers; sustainability roles in charities, local authorities or a university's own estates team also count as relevant experience
Starting in a client-side sustainability or environment role (in-house at a retailer, housebuilder or manufacturer) and switching into consultancy later - less common for graduates but a genuine route

What employers ask for

A degree in environmental science, geography, engineering, physics, chemistry, economics or a built-environment subject is the usual starting point, but subject matters less than you'd think - numerate social science and business graduates get in regularly, particularly on the ESG reporting and strategy side
Most larger employers ask for a 2:1; some ask for a 2:2 or use no degree-class filter at all, and smaller consultancies are generally more flexible if you can show relevant project or placement experience
Genuine comfort with Excel is close to universal - you will be asked about it, and some processes include a numerical or data exercise
Evidence of interest in the subject beyond the degree: a dissertation on a related topic, volunteering, a student sustainability society, a placement, or a relevant certificate such as an introductory carbon literacy or IEMA course

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Professional qualifications are usually started after you join, not before - common ones are IEMA membership (the Institute of Environmental Management and Assessment), chartered status through IEMA or a relevant engineering institution, and in the buildings sector assessor qualifications for schemes like BREEAM
A driving licence is sometimes requested where the role involves site visits, particularly outside London

Skills that matter

Data handling in Excel (and increasingly Power BI or Python)

Most carbon footprints are built from messy client data that arrives in inconsistent formats and has to be reconciled before any analysis is possible.

Technical writing for non-technical readers

The deliverable is almost always a written report or deck, and a client board will only act on findings they can understand without a science background.

Reading and applying standards and regulation

A lot of the job is working out precisely what a framework requires and whether a client's current practice meets it - close, literal reading matters more than general knowledge.

Scepticism about data quality

Emissions figures are often estimates built on assumptions, and knowing which numbers are solid and which need caveating protects both the client and your firm.

Project and time management

You will usually be working across several client projects with fixed budgets at once, so judging how long a task should take is part of the job from early on.

Diplomatic client handling

You frequently have to tell a client their target is unachievable or their data is poor, and keeping the relationship intact while saying so is a core skill.

Putting these on a CV? We counted which skills 12,914 live graduate adverts ask for, and what to do with the answer — part of our application advice.

Where it leads

Graduate / analyst: supporting senior colleagues, doing the data work and first drafts, learning the frameworks. Typically a couple of years, though titles and timings vary by firm.
Consultant: running smaller workstreams yourself, owning client contact on day-to-day matters, and starting to check junior colleagues' work. Many people complete IEMA membership or another professional qualification around this stage.
Senior consultant / principal: leading projects end to end, scoping and pricing work, managing a small team. Chartered status is often expected or encouraged here.
Associate director and director: the shift is largely from doing the work to winning it - business development, client relationships and responsibility for a team's revenue. Timelines vary a lot between firms and are not a fixed ladder.
Common sideways moves: in-house sustainability or ESG lead at a company, roles in sustainable finance and investment, policy work in government or an NGO, or a technical specialism such as life cycle assessment, energy modelling or climate risk.

What people get wrong

“It's hands-on environmental work - fieldwork, ecology, being outdoors.”

That's a different job (ecologist or environmental scientist). Sustainability consultancy is predominantly desk-based: spreadsheets, standards documents, reports and client meetings, with occasional site visits.

“You spend your days persuading companies to do the right thing.”

Much of the work is compliance and reporting - clients come to you because a regulator, investor or major customer is requiring disclosure. The persuasion element exists but is usually framed in cost, risk and regulatory terms rather than moral ones.

“You need a science or environmental degree.”

Numeracy and clear writing matter more than the subject. Plenty of consultants come from economics, business, law-adjacent or general humanities backgrounds, especially on reporting, social value and strategy work.

“It's a single, consistent profession.”

'Sustainability consultant' covers wildly different jobs - building energy modelling, corporate carbon accounting, ESG investor reporting, social value for public contracts, supply chain due diligence. Two people with the same title may share almost no technical skills.

Where this varies

The work differs sharply by sector. In engineering and built-environment consultancies it leans technical - energy modelling, building certification schemes, embodied carbon in materials - and often sits alongside architects and engineers. In the large professional services and audit firms it leans towards corporate reporting, assurance of sustainability disclosures and advising boards, with a culture closer to accountancy or management consulting. Small specialist consultancies give graduates far more client exposure and variety much earlier, but less structured training, fewer formal review points and often lower pay. Pace and travel also vary: some roles are almost entirely remote desk work, others involve regular site visits across a region.

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General guidance about the role across the UK market, not about any specific employer. Entry routes and requirements vary — always check the individual job advert.