Data Analytics
Sustainability Consulting and ESG Data Solutions
Build a reliable ESG data foundation, calculate emissions with transparent methods and produce sustainability disclosures that hold up to assurance.
Treat Sustainability Data with Financial-Grade Rigor
Sustainability reporting has moved from voluntary brochures to regulated disclosures. Frameworks and standards such as the EU Corporate Sustainability Reporting Directive with its ESRS, the ISSB standards IFRS S1 and S2, and the GHG Protocol expect companies to report consistent, traceable and increasingly assured data. Requirements continue to evolve, yet in many organizations the underlying numbers still come from site spreadsheets and emailed questionnaires.
Hanoi Technology helps sustainability, finance and IT teams close that gap. We assess what data you need, design an ESG data model, automate collection from operational systems and suppliers, calculate emissions with documented factors, and deliver dashboards and reports with lineage auditors can follow.
The Challenge
The ESG Data Challenges Companies Face
Sustainability teams are rarely short of ambition; they are short of reliable, timely data.
Data Scattered Across the Organization
Energy, fuel, waste, water, workforce and purchasing data sits in utility bills, ERP modules, HR systems and site spreadsheets owned by different teams and countries.
The Scope 3 Problem
Value chain emissions depend on supplier data and spend-based estimates that are incomplete and inconsistent. Improving data quality over time requires a structured approach and clear methodology.
Changing and Overlapping Requirements
Companies may need to address CSRD and ESRS, ISSB-based local rules, CDP questionnaires and customer requests at the same time, with scope and timelines that keep shifting.
Assurance Readiness
Auditors expect documented methods, controls and an evidence trail for each reported figure. Spreadsheet processes make this slow, costly and stressful.
Business Value
What a Solid ESG Data Foundation Enables
Credible, Assurance-Ready Disclosures
Documented calculations, controls and lineage make every reported figure traceable to its source, simplifying limited or reasonable assurance.
Less Manual Effort Each Cycle
Automated collection and calculation free sustainability teams from chasing spreadsheets, so they can focus on analysis and action.
Report Once, Use Many Times
A single data model maps to multiple frameworks, so the same verified data feeds regulatory reports, questionnaires and customer requests.
Actionable Decarbonization Insight
Granular emissions data by site, product and supplier shows where reduction efforts will have the most effect.
Integration with Financial Planning
Linking sustainability metrics with financial data supports carbon pricing scenarios, investment cases and transition planning.
Better Stakeholder Trust
Consistent, transparent reporting strengthens credibility with investors, lenders, customers and employees.
Sustainability Reporting Is a Data Engineering Problem
Most of the effort in ESG reporting is not writing the report; it is collecting, validating and calculating the data behind it. Treating that work with the same discipline as financial data, with defined owners, automated pipelines, controls and versioning, turns an annual scramble into a repeatable process that improves every year.
Our Services
Hanoi Technology’s End-to-End Sustainability Consulting and Solutions Services
From materiality and data strategy to automated pipelines and reporting.
ESG Reporting Readiness Assessment
We review your obligations and voluntary commitments, current data sources, processes and gaps, and define a practical roadmap toward compliant, assured reporting.
- Requirements and gap analysis
- Data source inventory
- Readiness roadmap
Double Materiality Support
We support your sustainability team with the data and analysis behind impact and financial materiality assessments, and translate results into a data requirements list.
- Stakeholder and data inputs
- Materiality results documentation
- Datapoint requirements list
ESG Data Model and Platform
We design a sustainability data model covering environmental, social and governance metrics and implement it on your data platform or a dedicated ESG solution.
- ESG data model
- Metric and KPI dictionary
- Data platform implementation
Emissions Calculation Pipelines
We automate Scope 1, 2 and 3 calculations aligned with the GHG Protocol, with emission factor management, location and market-based methods, and full versioning.
- Activity data pipelines
- Emission factor library
- Calculation logic and audit trail
Supplier and Value Chain Data
We set up structured supplier data collection, combine spend-based and activity-based approaches and track data quality improvements over time.
- Supplier data collection process
- Data quality scoring
- Scope 3 improvement plan
ESG Dashboards and Disclosure
We build dashboards for targets and progress, and connect data to report templates and disclosure tools for regulatory and voluntary reporting.
- Target and progress dashboards
- Framework mapping
- Report-ready datasets
Our Approach
Our Approach to ESG Data and Reporting
Practical steps that deliver a first auditable reporting cycle and improve from there.
- 01
Clarify Requirements
We confirm which frameworks, standards and stakeholder requests apply to you, and translate them into a concrete list of datapoints and deadlines.
Deliverables: Requirements matrix · Reporting timeline
- 02
Map Data and Owners
We locate the source of each datapoint, assess quality and assign data owners and review responsibilities across sites and functions.
Deliverables: Data source map · Ownership and RACI matrix
- 03
Build the Data Foundation
We implement the ESG data model, collection workflows, integrations and calculation pipelines on the chosen platform.
Deliverables: Data pipelines · Collection workflows
- 04
Validate and Control
We add validation rules, review steps and reconciliations, and document methods and assumptions in a form suitable for assurance.
Deliverables: Controls documentation · Methodology notes
- 05
Report and Improve
We support the reporting cycle, deliver dashboards and outputs, and set priorities for data quality improvements in the next cycle.
Deliverables: Reporting outputs · Improvement roadmap
Use Cases
Sustainability Use Cases
Examples of ESG data challenges we help solve.
Group Carbon Footprint
A multi-site manufacturer replaces spreadsheet questionnaires with automated energy and fuel data feeds, producing monthly Scope 1 and 2 emissions per site.
Scope 3 Purchased Goods Baseline
A retailer combines procurement spend with supplier-specific data for key categories, creating a Scope 3 baseline and a roadmap to improve data quality.
CSRD Datapoint Collection
A company subject to the ESRS sets up structured collection of required environmental, social and governance datapoints with review and approval workflow.
Investor and Customer Questionnaires
A supplier reuses its verified ESG dataset to answer CDP and customer sustainability questionnaires quickly and consistently.
Fleet and Logistics Emissions
A logistics provider calculates emissions per shipment and customer from route and fuel data, supporting customer reporting and reduction programs.
Climate Scenario and Transition Planning
Finance and sustainability teams model the cost of carbon and the effect of reduction initiatives on margins and capital plans.
Technology
Platforms, Standards and Tools
We combine recognized standards with modern data and reporting technology.
- GHG Protocol
- ESRS
- IFRS S1 and S2
- CDP
- Microsoft Sustainability Manager
- Microsoft Fabric
- Power BI
- Snowflake
- Databricks
- SAP Sustainability Footprint Management
- Workiva
- Azure Data Factory
- dbt
- Python
- Excel Power Query
Platforms
Deliver Sustainability Consulting and Solutions on Your Preferred Platform
Why Hanoi Technology
Why Organizations Choose Hanoi Technology
Senior, Cross-Functional Teams
Strategy, data, AI, cloud and engineering specialists work as one team, so nothing is lost between hand-offs.
Proven Delivery
More than 50 projects delivered for clients in North America, Europe and Asia-Pacific.
Radical Transparency
A written update every week and a demo of working software every sprint, so you always know where things stand.
Cost-Effective Global Delivery
Experienced engineers from our Hanoi delivery hub, with working-hour overlap for every major time zone.
Success Story · Logistics
Route optimization and fleet visibility for a regional logistics company
A regional delivery company handling thousands of shipments a day was planning routes and dispatching by hand. We built dynamic route optimization, a fleet dashboard and a driver app.
Read the Full StoryResources
Featured Resources
Industry trends and practical guidance to help you get more value from data, AI and technology.
FSMA 204 After the Delay: Using Shipment Monitoring to Get Traceability-Ready by 2028
The FDA Food Traceability Rule deadline moved to July 2028, but the data work is large. Here is how to use shipment monitoring and event data to get ready without wasting the extra time.
CSRD After the Omnibus: What the Revised ESRS Mean for Reporting From 2027
The Omnibus and the simplified ESRS reshaped EU sustainability reporting in 2026. Here is who is in scope, what changed in the standards and how to adapt your data and process.
OpenTelemetry in 2026: Building a Vendor-Neutral Observability Strategy
OpenTelemetry has become the default way to collect telemetry. Here is what changed in 2026 and a practical roadmap for a vendor-neutral observability stack.
Build ESG Reporting You Can Stand Behind
Tell us which requirements apply to you and where your sustainability data lives today. We will reply within 24 hours to arrange a free consultation and outline next steps.
Sustainability and ESG FAQ
Which sustainability reporting requirements apply to us?
It depends on where you are listed, where you operate, your size and your customers. EU-based and some non-EU companies may fall under the CSRD and ESRS, whose scope and timelines have been revised. Other jurisdictions are adopting ISSB-based standards, and many customers and investors request CDP or their own questionnaires. We help you build a requirements matrix with your legal and sustainability advisors, then design data processes that cover the overlap efficiently.
Do you provide sustainability strategy or assurance?
Our focus is the data, technology and process side of sustainability reporting: requirements translation, data models, collection, calculation, controls and reporting. We work alongside your sustainability team and, where needed, specialist advisors on topics such as target setting. We do not provide assurance; instead, we prepare documentation, controls and evidence trails that make the work of your independent assurance provider faster and smoother.
How do you handle Scope 3 emissions with limited supplier data?
We start with a screening of all relevant categories using spend-based or average-data methods to identify where emissions are concentrated. For the most significant categories, we set up structured collection of supplier-specific or activity data and track data quality for each source. The methodology and assumptions are documented, and the data model supports replacing estimates with better data over time without rebuilding calculations.
Should we buy a dedicated ESG software platform?
Sometimes. Dedicated platforms offer ready-made frameworks, emission factor libraries and collection workflows that speed up a first reporting cycle. Organizations with mature data platforms may prefer to build the ESG data model there and use a disclosure tool for the final report. We assess both options against your requirements, existing landscape and budget, and we can implement either approach or a combination of the two.
How long does it take to set up ESG data collection?
A first cycle covering key environmental metrics, such as Scope 1 and 2 emissions, energy and waste, can often be automated within three to four months, depending on the number of sites and data sources. Broader scopes including Scope 3 and social metrics are usually phased over several cycles. We prioritize datapoints by regulatory deadline and materiality, so the most important items are ready first.
How do you make ESG data audit-ready?
We assign data owners, document definitions and calculation methods for every metric, version emission factors, and log every data load, adjustment and approval. Validation rules flag outliers and missing values before data reaches reports. The result is a clear trail from each disclosed figure back to the source document or system, similar to financial reporting controls, which assurance providers can test efficiently.