Case study · AI & Data Science · Management consultancy
Migration to Snowflake Data Cloud: ESG Data
Regulators, investors, and stakeholders now demand ESG transparency — and legacy systems can’t deliver it. OmniVista migrated a fragmented, multi-vendor ESG data environment to Snowflake Data Cloud, unifying everything into a single scalable schema.

E
Environmental
S
Social
G
Governance
Cloud
Snowflake
Global
Compliance

70%
Faster reporting
Improvement in compliance & investor reporting time
25%
Cost reduction
Decrease in infrastructure costs post-migration
1
Unified schema
Single source of truth across all vendors and feeds

NH
Author
Nour Hamdieh

Read time
3 minute read

Published
22 Jan 2026
Topics
AI and Data Science
Application Development
Cyber Security
Featured
Management Consultancy

Executive summary
ESG data, unified. Compliance, accelerated.
Organisations face growing challenges managing ESG data across fragmented systems — slowing reporting cycles and creating compliance risk. By migrating to Snowflake Data Cloud, OmniVista streamlined ESG data management, integrated multiple external vendor feeds and applications, and ensured compliance with global standards.
ESG data has become critical as regulators, investors, and stakeholders demand transparency. Legacy systems limit scalability and make reporting inefficient — creating an urgent need for modern cloud-based solutions that can handle growing data volumes and near real-time demands.

Architecture
From fragmented feeds to a single cloud source of truth
ESG data was sourced from external rating agencies, supplier disclosures, internal performance systems, and regulatory portals — each using different formats, creating significant integration complexity. Snowflake’s native connectors and automated ingestion pipelines unified everything into one consistent schema.
Data ecosystem — vendor feeds to reporting outputs

Rating agencies Supplier disclosures Internal performance Regulatory portals Snowflake Unified schema Snowpipe · ELT pipelines RBAC · Data lineage · Audit Power BI / Tableau Compliance portals Board dashboards Investor reports

The challenge
Four compounding problems — all rooted in fragmentation
The client faced multiple challenges in managing ESG data across its existing systems. Each problem compounded the next — making consistent compliance reporting difficult and slowing the delivery of business insights to stakeholders.
Multiple vendors & data sources
ESG data was sourced from external rating agencies, supplier disclosures, internal performance systems, and regulatory portals — each using different formats, creating significant integration complexity.
Application & portal connectivity
The ESG platform had to link with existing finance, compliance, and sustainability portals — along with third-party dashboards used for board and investor reporting — with no unified connector layer.
Fragmented reporting
Manual processes were required to reconcile different data streams — increasing the risk of errors and delays in reporting cycles that directly impacted investor and regulatory submissions.
Performance bottlenecks
Growing ESG reporting requirements meant legacy infrastructure could not handle increased data volumes and near real-time demands — slowing business insights and creating compliance risk.

The solution
A comprehensive migration strategy to Snowflake Data Cloud
OmniVista designed and executed a phased migration — migrating historical ESG data, automating vendor feed ingestion, and validating outputs across regulatory dashboards before full go-live. The solution was built in four interconnected pillars.
Pillar 01 — Unified data model
One schema across all vendors
ESG datasets from multiple vendors were standardised into a single Snowflake schema — ensuring comparability and consistency across environmental, social, and governance metrics regardless of source format or update frequency.
Pillar 02 — Automated data ingestion
Snowpipe & ELT pipelines
Leveraging Snowpipe and ELT pipelines, vendor feeds, application data, and regulatory updates were ingested automatically — eliminating the manual reconciliation work that had previously delayed reporting cycles and introduced errors.
Pillar 03 — Portal & dashboard integration
Native connectors, single source of truth
Snowflake’s native connectors enabled smooth integration with reporting portals, BI dashboards (Power BI, Tableau), and internal applications — providing a single source of truth for board reporting, investor disclosures, and regulatory submissions.
Pillar 04 — Scalability & governance
RBAC, lineage & audit readiness
Role-based access controls, data lineage tracking, and auditing features ensured compliance with global ESG standards — while the Snowflake architecture supports future growth in data volumes without infrastructure rework.

Benefits
What the migration delivered
The phased migration delivered measurable improvements across reporting speed, data accuracy, governance, and cost — while establishing a scalable foundation for future ESG requirements.
🔗
Unified ESG data
All vendor and system ESG data unified into a single, consistent, comparable schema — no more manual reconciliation.
Faster compliance reporting
Reporting time improved by 70% — compliance and investor reports now generated in a fraction of the previous time.
🛡
Stronger governance
RBAC, data lineage, and audit trails ensure full compliance readiness for evolving global ESG standards and regulatory requirements.
📈
Scalable & cost-efficient
Infrastructure costs decreased by 25% — with a Snowflake architecture that scales automatically as ESG data volumes grow, with no rework required.
🤝
Secure collaboration
Seamless, secure collaboration across BI dashboards, compliance portals, board reporting tools, and internal applications — all from one trusted source.

ESG data, unified. Compliance, accelerated.
OmniVista · AI & Data Science · Management consultancy

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Published On: January 22nd, 2026 / Categories: AI and Data Science /