VSME Consultant or DIY? Answering Customer and Bank Requests

A customer sent a sustainability questionnaire. Or your bank asked for ESG data with the loan renewal. Neither is a legal reporting duty on you, but both have a deadline. The question is whether to do it yourself, buy a fixed piece of adviser time, or buy software.

This guide is about that decision for one company. It does not explain the standard; our SME compliance guide does that. If you run a portfolio of companies, see CSRD for private equity portfolios.

Who Is Asking, and What They Actually Need

Three requests look alike and are not.

• A customer questionnaire. The customer reports under CSRD or answers to someone who does, and wants figures for its value chain. It often has its own format.
• A bank or investor request. The lender wants a recognised, comparable set of data for credit or sustainability-linked terms. A standard format helps you here.
• A voluntary report. Nobody has asked yet, and you want to be ready.

Ask the requester two things before you spend anything: what exactly do they need, and by when? Many requests are narrower than they first look.

The reason requests are limited at all is the value-chain cap. Under the Omnibus, companies with 1,000 employees or fewer are protected from open-ended information demands from large reporters (Art. 2(4)(b) of Directive (EU) 2026/470). Our value-chain reporting guide sets out what a reporter may ask for. If a request goes beyond that, you can say so.

When a Template and an Internal Owner Are Enough

The Basic module is built to be completed by a competent finance or operations lead with a template. A DIY route works when:

• You can name one person who owns the exercise and has time for it.
• Energy, fuel and workforce data already exist in your accounts and HR records.
• The request asks for Basic-level data, not a transition plan or detailed narrative.
• Nobody expects a polished report in two weeks.

Budget the time, not the fee. For a first pass, the work is usually collecting the data and chasing the people who hold it, not writing.

When a Fixed-Scope Adviser Pays Off

An adviser earns the fee in three places.

1. The greenhouse gas inventory. Getting Scope 1 and 2 right, and choosing defensible emission factors, is where DIY attempts go wrong.
2. First-time data collection. If the data lives in six places and nobody owns it, an adviser can set up the owners and the process.
3. A narrative comparable to your peers. If your customers will read your report next to others, tone and structure matter.

If none of the three applies, you probably do not need one.

What a VSME Engagement Should and Should Not Include

Buy a fixed scope with a fixed end date.

Should include:

• The agreed module, completed to a stated standard.
• A greenhouse gas inventory with sources and factors written down.
• A data-owner map: who supplies each number, from which system, how often.
• A handover session, so next year you can do it yourself.

Should not include:

• A double materiality assessment. The VSME does not require one, and it is a different job at a different price.
• Open-ended retainers for a one-off request.
• Assurance, which is not required.

Ask for the deliverables in writing. If you want help choosing the shape of the engagement, our engagement models guide compares them.

Tool, Adviser, or Both

Software helps with collection and repeat years, and does not decide for you what the numbers should be. Our software versus consultant guide works through the trade-off. For most single-company requests, an adviser for the first year and a spreadsheet or light tool afterwards is enough. Do not sign a multi-year licence before you know the request will recur.

Questions to Ask Before You Sign

• Which module will you deliver, and against which version of the standard?
• What is in the fixed fee, and what triggers a change order?
• Who prepares the greenhouse gas inventory, and which emission factors will you use?
• What do I own at the end, and can I reuse it without you?
• Have you completed a customer or bank request like mine, and can I speak to that client?
• What do you need from my team, and how many days does that take?

Where to Find One

Our directory lists advisers with ESG data, KPI and reporting experience. Look for someone who has delivered a comparable request for a company of your size, and ask what they would not do for the fee.

On the standard's status: the Commission adopted the voluntary standard based on the VSME in July 2026, and it remains voluntary. Check the current text before you commit, because the content may differ from the original VSME in places. For the context on who is still in scope, see the Omnibus guide.

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