Find the gaps before your assurer does. Zethic's ESG audit services trace every BRSR Core figure back to its source, sample test the values and check how each one was calculated. You get a gap report ranked by risk, and a team that can fix the data systems behind it.
Book a readiness audit
85%
Long-term Partnerships
75%
Mid-to-Senior Engineers
5+
Avg. Years of Engineer Experience
98%
Would Recommend Us
Chances are one of these is true.
What you get from this work.
Our ESG audit services cover the ESG data audit and pre-assurance review that sit before your independent assessment or assurance. Each piece can run standalone or as one connected engagement.
Where you stand on all nine BRSR Core attributes, before testing starts.
Applicability checkAttribute mappingData owner mapReadiness score
We map each of the nine BRSR Core attributes to the data, owner and evidence behind it, and confirm which indicators apply to you. A BRSR Core readiness assessment shows exactly where an assessor or assurer would stop.
Reported values traced back to meters, invoices and records.
Sample selectionSource tracingRecalculationVariance log
We pick samples across sites and periods, trace each reported value to its source document and recompute it. Differences are logged with their cause, so you know whether the issue is the data, the method or the evidence.
How each figure is calculated, approved and changed.
Calculation methodsEmission factorsApproval controlsChange history
We check that calculation methods, emission factors and approval steps are documented and actually followed. For teams that need wider governance work, this pairs with our technical compliance and governance services.
Gaps fixed at the system level, not patched in a spreadsheet.
Ranked gap reportEvidence linkingWorkflow fixesRe-test before handover
Most ESG audit providers stop at the gap report. Our engineers rebuild the collection workflows, evidence links and integrations behind each gap, drawing on Zethic's data engineering services, then re-test them.
Sustainability consulting services, our team for footprint and ESG reporting work.
Built for every vertical.
Why teams pick us for this.
Gap reports often sit unresolved because the advisor can't change the systems. Our engineers fix the workflows and evidence links they audit.
We prepare you for assessment or assurance. The opinion itself comes from an independent provider, and we never blur that line.
You see the attributes in scope, the sample plan and how findings are ranked before the first test, so nothing comes as a surprise.
Zethic builds its own ESG data management software and is an initiating partner in the OpenESGData partnership.
Our achievements display our capabilities
Selected work real outcomes.
A few of the products and platforms we have shipped across fintech, healthcare, logistics, hospitality, and SaaS.
View All Case StudiesA senior team, a fixed scope and a gap report you can act on. You see findings as they surface each week, not in one report at the end.
Book a readiness audit{ 01 }· Week 1
We confirm which BRSR Core attributes and frameworks apply, list data owners and source systems, and agree the sample plan before testing starts.
{ 02 }· Week 2 to 4
Samples are traced to source documents and recomputed, and methods and controls are reviewed. Findings are shared weekly, not saved for the end.
{ 03 }· Week 5
You get a gap report with each finding ranked by risk, the evidence behind it and the fix it needs, written for both the ESG team and the board.
{ 04 }· Week 6 onward
We fix the gaps you choose, re-test them and set up read-only evidence access for your independent assessor or assurer.
Trusted voices. Real outcomes.
“We truly appreciated their dedication, technical expertise, and problem-solving approach.”
Young Onion
Department Head
“I was blown away by the knowledge the team had about creatives, e-commerce, website design, and optimization.”
Decathlon Sports India
Image Leader
“They have a good team of designers and project managers who help us with the designs using HTML, Angular, and React.”
Instarama
COO
“Their creativity stands out. A collaborative team that delivered high-quality solutions working closely with us.”
CodeGama LLP
Business Developer
“The product has become more intuitive and user-friendly. Load times dropped significantly after their work.”
Qoruz
Co-Founder
“Their commitment to timely delivery was impressive.”
CurleyStreet Media
Business Development Rep
“We truly appreciated their dedication, technical expertise, and problem-solving approach.”
Young Onion
Department Head
“I was blown away by the knowledge the team had about creatives, e-commerce, website design, and optimization.”
Decathlon Sports India
Image Leader
“They have a good team of designers and project managers who help us with the designs using HTML, Angular, and React.”
Instarama
COO
“Their creativity stands out. A collaborative team that delivered high-quality solutions working closely with us.”
CodeGama LLP
Business Developer
“The product has become more intuitive and user-friendly. Load times dropped significantly after their work.”
Qoruz
Co-Founder
“Their commitment to timely delivery was impressive.”
CurleyStreet Media
Business Development Rep
“What impressed us most was how well they understood our brand and translated it into clean, thoughtful designs.”
GD Farm Fresh
Director
“Their team was patient, courteous, responsive, and technically proficient throughout the entire project.”
Studio by Nandita Manwani
Partner
“Zethic Technologies generally delivers on time and in line with our requirements – deployed in 30+ countries.”
SABA Hospitality
Executive Director
“Zethic built the features specifically to match our internal workflow and business needs. Professional and on time.”
Coral Publishers
Executive
“Zethic Technologies is a true partner.”
Geordana
CEO
“What impressed us most was how well they understood our brand and translated it into clean, thoughtful designs.”
GD Farm Fresh
Director
“Their team was patient, courteous, responsive, and technically proficient throughout the entire project.”
Studio by Nandita Manwani
Partner
“Zethic Technologies generally delivers on time and in line with our requirements – deployed in 30+ countries.”
SABA Hospitality
Executive Director
“Zethic built the features specifically to match our internal workflow and business needs. Professional and on time.”
Coral Publishers
Executive
“Zethic Technologies is a true partner.”
Geordana
CEO
Ways to work
The same senior team and method, shaped to whether you need one readiness audit before a deadline or support across every reporting cycle.
A scoped ESG audit with a gap report, timeline and price agreed upfront. Best before a first or upcoming assessment or assurance.
Quarterly testing and remediation across reporting cycles. Best when your data, sites or frameworks keep changing.
Questions, answered.
They review how your ESG data is collected, calculated and evidenced before an independent assessment or assurance: applicability checks, source tracing, sample testing, a controls review and a gap report. Many providers stop there. We can also fix the gaps through our ESG software development services.
No. BRSR Core assessment or assurance has to come from an independent provider. An ESG pre-assurance audit is a readiness check that finds and fixes gaps first, so the formal engagement raises fewer findings.
It maps each of the nine BRSR Core attributes to the data, owner and evidence behind it, and shows which indicators would not hold up under testing today.
A gap assessment compares your disclosures with what a framework asks for. An ESG data audit goes further: it tests the numbers by tracing samples back to source and recomputing them.
Ideally one to two quarters before your assessor or assurer starts, so there is time to fix what the audit finds. Teams that test only at year end usually have no time left to remediate.
Yes, if you report it. SEBI made value chain disclosures and their assessment or assurance voluntary in March 2025, but many buyers still ask suppliers for this data, and it gets the same tracing as your own.
Yes. We audit data wherever it sits, including spreadsheets, ERP exports and ESG platforms, and trace it back to source records either way. Spreadsheet-based reporting is where most gaps appear, which is usually why ESG reporting breaks down.
It depends on the number of entities, sites and attributes in scope, and on the sample size. We scope the audit first and send a fixed quote before any testing starts.
Tell us your reporting scope and when your assessment starts, and we'll scope ESG audit services around it. A senior lead replies within one working day.
Share your scope
Tell us your entities, sites and timeline under NDA, and we reply with real questions.
Readiness Call
A senior lead reviews your current data process and gives an honest read on scope.
Fixed Quote
A scoped audit with sample plan, timeline and price, agreed before any testing starts.
Tell us your reporting scope and when your assessment starts, and we'll scope ESG audit services around it. A senior lead replies within one working day.
