ESG reporting software vs an ESG consultant: cost, time and what you keep

What does an ESG consultant do that software cannot?

A consultant makes the judgement calls: materiality, reporting boundary, Scope 3 scoping, scenario analysis and whether your targets will hold up. Software does not make those decisions, and a platform that claims it does is overselling.

Those calls are where senior expertise is worth paying full rate. They take days of an experienced adviser's time, not weeks of junior time. The work that fills the weeks is different, and it is the same for every client: collecting records, chasing site managers, converting units, reconciling figures and formatting the report.

How much time can software save on a reporting cycle?

Environmental Managers Consult Limited, an environmental consultancy that uses Emvert with its clients, reported about 50% less time on two stages of the work across two separate client engagements: data collection and coordination, and report preparation. The saving came from organising client data in one place and tracking who owns each piece of it.

That time went on the work that happens before a report is written. Records sat with finance, procurement, facilities, HR and environmental teams, in different formats. The consultancy had to request them, check them, follow up on gaps and organise everything before any analysis could begin.

With each dataset assigned to a named owner in the platform, the consultancy could see what was outstanding and who held it, instead of rebuilding that picture from email threads.

Working with Emvert has helped us organise the information we collect from clients and keep track of who is responsible for providing it. Across two client engagements, we saw reporting time reduce by approximately half at the data collection and report preparation stages. This allows us to spend less time coordinating information manually and more time focusing on the quality and interpretation of the results.

That result covers those two stages in those two engagements. It is not a measured saving across the whole engagement, and it is not a promise for every company. Your saving depends on how scattered your records are today and how many sites report.

How do the costs compare in year one and year three?

In year one the two models cost more alike than vendors admit, because your own team does much of the collection either way. The gap opens in years two and three, when a consultant-led cycle is often re-scoped at close to the year-one fee, while a platform cycle rolls forward with sites, meters, suppliers and methods already set up.

Most cost comparisons show only the external fee. The line they leave out is your own team's time. Emvert's cost model assumes about 45% of total effort stays internal in a consultant-led cycle and about 30% in a platform-led one, and every assumption in it can be changed. It is a model, not a quote, and it leaves out assurance fees, historic-year reconstruction and advisory work on materiality.

Two costs are larger than the difference between the models:

• Reconstructing a missed year. Collecting twelve months as they happen takes a few hours a month. Rebuilding them afterwards from old invoices takes far longer and leaves a weaker evidence trail.
• Assurance. Under the FRC's amended roadmap, assurance is required from the third year of reporting. Its cost depends on how traceable your evidence is, not on who wrote the report.

Emvert is billed annually in Naira, with first-cycle onboarding included. A demo runs your own data through the calculation and ends with a written quote.

Who owns the data, and what do you keep when the engagement ends?

You own the data, and you sign the report. SRG 1 (2026) requires the disclosure to be signed by the member of your management team who oversees sustainability reporting, with their FRC number, so accountability stays inside the company even when a consultant prepares the draft.

The records come from your own departments:

When an engagement ends, a consultant-led cycle usually leaves you the report and, if you asked for it, a workbook. If a figure is challenged later, you go back to an adviser who may no longer be engaged.

With Emvert you can export the full dataset, including the evidence documents, at any time. With any adviser, agree in writing who provides, validates and approves each dataset, and what happens to the records when the contract ends.

What should you check before hiring an ESG consultant in Nigeria?

Check that the consultant and the individuals doing the work are registered with the FRC. SRG 1 says entities engaging sustainability professionals or firms must ask for evidence of that registration.

SRG 1 lists the professionals who can register for sustainability reporting work: members of ICAN, ICSAN, ANAN and the Chartered Institute of Directors, and sustainability specialists such as environmental, energy and carbon accounting experts. They must also hold a sustainability qualification the FRC accepts, or show verifiable practical experience.

Then ask three questions. Will the method and the workbook stay with us?

What will year two cost, and why? Who on your team does the data collection, and at what day rate?

When is a consultant the better choice?

Hire a consultant first when you have a hard deadline and nobody internally who can own the work. A platform makes your team faster, but it does not replace a team you do not have.

A consultant is also the better answer in three other cases:

Can a consultant use Emvert with their clients?

Yes. Emvert's Firm tier is built for advisory firms that prepare reports for many clients, with roles and permissions per engagement, shared factor libraries and client-branded exports.

Environmental Managers Consult Limited works this way. Emvert organises the information it collects from clients and tracks who is responsible for providing it, while the consultancy keeps responsibility for the professional judgement, review and advice in each engagement. See the partner programme, or talk to us about Firm terms for your practice.