Discover how the ESG score is calculated, including the key methods and standards used to assess environmental, social, and governance performance.
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How is the ESG score calculated? Key methods and standards

Updated on
June 22, 2025

Knowing how the ESG score is calculated is no longer just for large corporations.

Understanding your ESG score is easier with the right ESG management software that connects data with insights.

It’s something every company, big or small, must understand if it wants to stay competitive.

ESG metrics, which measure environmental, social, and governance impact, are becoming a key tool to understand where we are and how prepared we are for what’s coming.

But let’s be honest: most companies have no idea how this is measured.

Is it just about complying with regulations? No. It goes much further.

It’s about knowing whether your company is making decisions that make it more efficient, more attractive to investors, and more aligned with market demands.

In this article, we’ll clear up the confusion.

We’ll look at what you need to measure correctly, which standards exist, and how to start working with real data.

Because without data, there is no strategy.

Starting Point: How Is the ESG Score Calculated?

Before we start reporting or making decisions, we need to understand what exactly an ESG score measures and how it’s calculated.

There’s no magic formula.

ESG scores vary depending on who calculates them, what data is used, and what the company or investor wants to evaluate.

But there is a common base: analyzing how we manage environmental, social, and governance issues in a quantifiable way.

What Does an ESG Score Measure?

An ESG score measures non-financial risks and opportunities.

In other words, how we are impacted by and respond to issues like emissions, employee treatment, or transparency in corporate governance.

It’s not just a pretty number to show off.

This score defines whether we’re reliable, whether we’re exposed to unnecessary risks, and whether we’re ready to compete long-term.

Who Calculates These Scores and What Are the Most Common Methodologies?

This is where it gets interesting. There’s no single entity or universal system.

It depends on who calculates it, what data they use, and what they want to assess.

ESG Rating Agencies

These are companies dedicated exclusively to rating others.

They collect public and private data, apply their own models, and assign a score.

But be careful, each agency has its own criteria, so don’t expect the same rating everywhere.

Specialized Consultancies

Some companies hire consultants for a more personalized evaluation.

This involves custom methodologies, interviews, site visits... more detailed, but also more expensive and slower.

ESG Analysis Solutions

There are also tech solutions that collect your data and automatically calculate your ESG score.

Their advantage is clear, they automate something that would otherwise be a major headache.

In our case, as an ESG solution, we’re not consultants or auditors.

We help gather all your ESG data and connect it to whatever you need: EINF, SBTi, CSRD, ISO certifications, or what comes next.

4 Business Benefits of Knowing Your ESG Score

1. Regulatory Compliance (CSRD, EU Taxonomy, etc.)

Regulations keep growing.

Measuring correctly from the start helps you avoid surprises and report efficiently and without stress.

If your data is already structured, adapting to new standards becomes much easier.

2. Access to Sustainable Financing

More and more investors demand ESG criteria.

If you can’t prove your score, you’re out of the game. It’s that simple.

Having a reliable ESG score opens the door to financing, partnerships, and better terms.

It can also help align your strategy with sustainable finance frameworks that are already being adopted in the market.

3. Improved Corporate Reputation

A strong ESG score says you’re doing things right.

And sooner or later, that shows up in customer trust, employee engagement, and investor interest.

4. Competitive Advantage in the Market

If your competitors aren’t measuring, they’re flying blind.

And in a world with growing regulations and expectations, that’s a risk you don’t need to take.

Knowing where you stand gives you a head start, while others are still figuring it out.

Understanding how your ESG score is calculated is just the beginning.

What really matters is how you use it to your advantage. And that’s what we’ll tackle next.

4 Common Challenges in ESG Scoring (and How to Solve Them)

Calculating your ESG score can seem daunting if you don’t know where to begin or what obstacles to expect.

These are the four most frequent blockers we see, and how you can overcome them without the drama.

1. Scattered or Unstructured Data

Most companies have the data, but don’t know where it is.

It’s spread across departments, Excel files, emails, and disconnected reports.

The solution?

Centralize and structure everything in one place.

Only then can you turn information into something useful and ready to report.

2. Lack of Time or Internal Resources

We get it, daily operations don’t stop.

And if you don’t have a team dedicated to sustainability, ESG scoring ends up on the back burner.

How do we fix it? With automation and simplicity.

Scoring your ESG performance shouldn’t take weeks of manual work. If it does, something’s wrong.

3. No Single Standard to Follow

Which framework is the right one? GRI, SASB, CSRD...? That question creates confusion and inaction.

The key is to translate your ESG data into multiple formats.

One data set should serve many purposes, without redoing everything every time.

4. Overdependence on External Consultants

Many companies hand everything over to consultancies.

While they can add value, this often leads to slow, expensive, and hard-to-scale processes.

What if you could take control from within?

That’s where a tech solution gives you autonomy and real-time visibility.

Frequently Asked Questions (FAQs)

What Does ESG Mean and Why Is It So Important?

ESG stands for Environmental, Social, and Governance.

Three essential areas to understand the impact and resilience of a company beyond financial results.

Why does it matter?

Because today’s market no longer tolerates a lack of data on sustainability.

And if you don’t measure, you can’t compete.

Is There an Official Way to Calculate the ESG Score?

There’s no single universal formula.

There are standards, methodologies, and rating agencies that evaluate companies, but each uses its own system.

The most important thing is to have structured, adaptable data.

That way, you can respond to any requirement: CSRD, taxonomy, SBTi, ISO and others.

How Do I Know If My Company Needs an ESG Score?

If you report, if you have investors, if you sell to large clients, or if you operate in regulated markets, you need it.

And if not now, you will soon. This is not a passing trend.

It’s about being ready for what is already the new standard.

Can I Calculate the ESG Score Without External Help?

It depends on your team and your resources.

If your data is well organized, you can move forward.

But if not, the smartest move is to use a solution that does it for you.

Just make sure you avoid slow processes or outdated reports.

The key is to maintain control and agility.

How Often Should the ESG Score Be Updated?

The ESG score is not static.

Ideally, it should be updated continuously or at least with each fiscal year.

Why? Because data evolves, regulations change, and what works today might not be enough tomorrow.

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Cristina Alcalá-Zamora
CSRD Specialist | Content Creator

Frequently Asked Questions (FAQs)

How Can You Calculate a Product’s Carbon Footprint?

Carbon footprint calculation analyzes all emissions generated throughout a product’s life cycle, including raw material extraction, production, transportation, usage, and disposal.

The most recognized methodologies are:

  • Life Cycle Assessment (LCA)
  • ISO 14067
  • PAS 2050

Digital tools like Dcycle simplify the process, providing accurate and actionable insights.

What Are the Most Recognized Certifications?
  • ISO 14067 – Defines carbon footprint measurement for products.
  • EPD (Environmental Product Declaration) – Environmental impact based on LCA.
  • Cradle to Cradle (C2C) – Evaluates sustainability and circularity.
  • LEED & BREEAM – Certifications for sustainable buildings.
Which Industries Have the Highest Carbon Footprint?
  • Construction – High emissions from cement and steel.
  • Textile – Intense water usage and fiber production emissions.
  • Food Industry – Large-scale agriculture and transportation impact.
  • Transportation – Fossil fuel dependency in vehicles and aviation.
How Can Companies Reduce Product Carbon Footprints?
  • Use recycled or low-emission materials.
  • Optimize production processes to cut energy use.
  • Shift to renewable energy sources.
  • Improve transportation and logistics to reduce emissions.
Is Carbon Reduction Expensive?

Some strategies require initial investment, but long-term benefits outweigh costs.

  • Energy efficiency lowers operational expenses.
  • Material reuse and recycling reduces procurement costs.
  • Sustainability certifications open new business opportunities.

Investing in carbon reduction is not just an environmental action, it’s a smart business strategy.