Net zero consultant: what one does, and whether you need one

UK net zero drivers — the rules that create the work

The United Kingdom is legally committed to net zero greenhouse-gas emissions by 2050 under the Climate Change Act 2008 (2050 Target Amendment) Order 2019, which amended the target in section 1 of the Climate Change Act 2008.

That national target does not bind a company directly. It reaches companies through four instruments, and this is the part almost nobody explains in one place.

Read together, these are not four projects.

They are four disclosure surfaces onto one underlying set of numbers — which is exactly why running them as four separate exercises is how organisations end up paying for the same baseline three times.

Two distinctions worth getting right

Both of these are routinely blurred in sales conversations, and both change what you should actually do this year.

That second one is worth pressing on, because it cuts both ways: the rule is not made, and the reporting years still begin on 1 January 2027 if it is. A company waiting for certainty before building a baseline has chosen to do the work in a hurry.

A net zero target is a curve, not a pledge

The difference between a credible plan and a press release is visible as a shape. A pledge names a year. A pathway names a rate — how fast emissions fall, in which years, from which activities.

Two things on that curve do the work. The near-term target — this decade — is what makes the long-term one testable, because it falls due while the people who set it are still there. And the residual at the foot is the part that abatement cannot reach, which is the only part that offsetting or removals legitimately addresses.

A plan whose curve is flat for eight years and then vertical is not a plan. It is a deferral with a date on it.

Net zero strategy consulting — setting a target that survives scrutiny

The most widely recognised standard for credible corporate targets is the Science Based Targets initiative (SBTi) Net-Zero Standard.

The strategy layer of this work is what firms sell as net zero strategy consulting: scoping a near-term target for this decade alongside a long-term net zero target, with most of the abatement coming from actual emissions cuts rather than offsets.

Targets are not a legal requirement. Investors and customers increasingly treat SBTi validation as the mark of a serious plan, and that is a market fact rather than a regulatory one — worth being precise about, because the two get blurred in sales conversations.

What SBTi consultants actually do for you

The submission is the visible part, and it is the smallest part.

The work is establishing that your baseline is complete enough to carry a target at all, choosing the pathway method, and testing whether the reduction rate is deliverable against your capital plan before you commit to it in public.

There is a decision worth making explicitly and early: whether to submit at all. Validation is a market signal, not a legal requirement, and for some organisations a well-evidenced internal target with a published methodology does the same job for a fraction of the effort.

A net zero consultant who treats submission as the automatic answer has not asked you what the target is for.

Transition plans — where the strategy becomes a disclosure

A transition plan sets out how a company moves from its current footprint to its targets: the levers, the capital, the dependencies and the governance.

UK SRS S2 requires a company to disclose information about any transition plan it has, which makes the plan a reporting artefact as well as a strategy document — and that changes how it has to be written.

Companies bidding for major UK government contracts also need a Carbon Reduction Plan under PPN 006, which applies to central government contracts above £5 million a year.

These are different documents with overlapping content.

Built once, properly, the same evidence base serves both.

Built separately, they diverge — and a procurement officer comparing your Carbon Reduction Plan against your annual report is exactly the reader who notices.

The signature matters more than it looks. A Carbon Reduction Plan is signed at director level, which makes the numbers underneath it a governance question rather than a sustainability-team question, and nobody wants a director signing something they have not understood.

It lands differently depending on what you are

The regimes are written generically; the work is not. Four rough shapes cover most of what arrives.

The last of those is the largest group and the least well served, because none of the published guidance is addressed to them.

If that is you, the honest answer is that you probably do not need a net zero consultancy yet — you need a defensible Scope 1 and 2 number and somewhere to put it.

Net zero consultancy vs carbon consultancy — and vs software

The two specialisms sit either side of the same data, and the distinction is about direction of travel rather than quality.

In practice you measure with a carbon consultancy or carbon management software, then set strategy with net zero specialists. Many firms do both, and there is nothing wrong with that — but you should know which one you are buying in any given month.

This is why the sequence matters: for most organisations the majority of the footprint sits in Scope 3, which is the hardest part to measure and the part a thin baseline quietly omits.

Software is the right answer when the question is repeatability: you already know your boundary, you have the activity data, and you need the same number produced reliably every year. A consultant is the right answer when the question is judgement: where the boundary sits, which pathway method applies, what a defensible Scope 3 screening looks like when the data does not exist.

Offsets, residual emissions and the claim you can defend

Ask any prospective firm how much of the proposed pathway depends on offsets versus real abatement. A credible plan minimises reliance on offsetting and says so in numbers.

The standards position has moved and a lot of published advice has not caught up. PAS 2060 was withdrawn by BSI at the end of 2025 and replaced by ISO 14068-1:2023, so a firm still selling "PAS 2060 certification" as a current route is working from a superseded document.

This matters beyond tidiness. Environmental claims are enforceable: the CMA Green Claims Code requires that claims be truthful, unambiguous and substantiated.

A neutrality claim resting on a withdrawn standard is exactly the shape of claim that attracts scrutiny — and the exposure sits with the company making it, not the consultancy that drafted it.

How to choose a net zero consultant — the questions that separate them

Almost every firm in this market describes the same four-stage method on its website. The method is not the differentiator; what a firm will commit to in writing is.

Six questions, in the order worth asking them.

Four things that should give you pause

None of these is proof of a bad firm. All four are worth a direct question.

On fees, expect either a fixed-scope project — baseline, targets and transition plan priced as separable deliverables — or an ongoing retainer.

Request fixed-scope proposals from two or three firms and compare deliverables line by line rather than day rates.

A day rate tells you nothing about how many days, and the number of days is the entire price — which is why the deliverable list, not the rate card, is where you compare one net zero consultant against another.

Net zero consultancy services — what we would do, in order

Now the honest part, because you should be able to judge this the same way we just asked you to judge everyone else.

We are a new practice. Delivery is through carbon.legal, which launches in Q3 2026 and is booking readiness reviews now. We have no client list to show you, we publish no case studies, and we are not going to invent either.

What we do have is this site: the published reference behind the work, with every threshold, date and standard cited to its primary source, updated as the regimes move. That is the thing we would ask you to judge — because it is the same reasoning we would bring to your baseline.

That bar is not a joke and it is not modesty — it is the number, and you should weigh it.

What we will not do: quote a fee before we know the boundary, claim an accreditation we do not hold, or tell you that reporting reduces emissions. The work is real, and wasted work is worse than work.

All of which comes back to one thing.