Greenly vs Persefoni

Why Switch from Persefoni to Greenly?

Persefoni is a leading US-headquartered carbon-accounting platform, particularly strong for US-SEC-climate-disclosure aligned reporting and global enterprise multinationals. For European businesses subject to CSRD, the structural challenges are familiar: Persefoni is US-jurisdiction, the workflow is more SEC-climate-rule-aligned than CSRD-aligned, and European-specific reporting requirements (ESRS, sectoral specifications) require adaptation.

Greenly is the French alternative. Paris-headquartered, CSRD/ESRS-native workflows, B Corp certified, and used by 2,000+ European businesses for sustainability reporting. For European businesses subject to CSRD, Greenly is the structurally aligned choice.

Feature Comparison

Feature	Greenly	Persefoni
Jurisdiction	France 🇫🇷	United States 🇺🇸
Data location	EU only	US default
GDPR	✅ Native	⚠️ Provider claims
CLOUD Act exposure	❌ None	⚠️ Yes
CSRD/ESRS-native	✅ Best-in-class for EU	⚠️ Adapted
SEC climate disclosure	Limited	✅ Best-in-class
Scope 1, 2, 3 accounting	✅	✅
Supplier engagement	✅ Native	✅
B Corp certified	✅	❌
Sustainability-consultant support	✅ Included	Add-on
Native French UI	✅	Limited
Pricing	Custom (€5K-30K typical)	Custom (similar tier)

For European CSRD-aligned reporting, Greenly is structurally aligned.

Pricing

Greenly custom pricing:

• SMB deployments: typically €5,000-15,000/year
• Mid-market deployments: typically €15,000-50,000/year
• Enterprise deployments: typically €50,000-200,000+/year
• Pricing factors: revenue tier, scope complexity, consultant-time allocation

Persefoni custom pricing:

• Similar structure for US enterprise market
• Often higher at top enterprise tier (broader analytics depth)

For European mid-market subject to CSRD, Greenly’s pricing including dedicated sustainability-consultant time is often materially better value than Persefoni equivalents.

Privacy & Data Sovereignty

Greenly’s structural advantages:

• French corporate jurisdiction — Greenly SAS subject to French and EU law
• EU data centres for all sustainability data
• GDPR-native with comprehensive Article 28 DPA
• B Corp certified with formal social/environmental commitments
• No US legal exposure for sustainability and supply-chain data
• CNIL-aligned practices

For businesses handling supplier-chain emissions data — which often contains commercially sensitive supply-chain information including supplier names, activity volumes, and pricing — EU jurisdiction matters operationally.

Migration Guide

Moving from Persefoni to Greenly typically takes 8-16 weeks:

1. Greenly contracting and consultant assignment (2 weeks)
2. Audit current Persefoni inventory — emission boundaries, scope categorisation, supplier list (2 weeks)
3. Configure Greenly equivalent inventory with ESRS-aligned categorisation (2-3 weeks)
4. Bulk-import historical emissions with field mapping (2 weeks)
5. Set up supplier-engagement workflows for scope 3 data collection (2-3 weeks)
6. Validate CSRD reporting outputs against requirements (2 weeks)
7. Train sustainability team on Greenly interface and consultant workflow (1 week)
8. Parallel-run for one reporting cycle (3-6 months for annual reporting)
9. Switch fully and decommission Persefoni (administrative)

Estimated total time: 8-16 weeks for setup; full annual reporting cycle for validation. Difficulty: Moderate-high; sustainability platform migration intersects with operational reporting cycles.

Real-World Use Cases

A French Mittelstand company uses Greenly Pro for CSRD-aligned reporting. The dedicated sustainability consultant supported their first-year reporting cycle; the EU jurisdiction matched their broader data-sovereignty preferences.

A pan-European retail chain uses Greenly Enterprise for multi-country emissions reporting. Native French + English + German UI supported their distributed sustainability team; the supplier-engagement workflow handled their complex tiered supply chain.

A Spanish e-commerce platform uses Greenly for B Corp recertification reporting plus CSRD prep. The B Corp values alignment matched their organisational mission; the platform handled both certification and regulatory reporting from one source of truth.

Company Background

Greenly SAS was founded in 2019 in Paris by Alexis Normand and Matthieu Vegreville. The company emerged from observation that carbon-accounting tooling was structurally underserved for European SMB and mid-market, and that CSRD would require substantial platform investment by European businesses.

By 2026, Greenly serves 2,000+ European businesses across France, DACH, Benelux, and broader EU markets. The company is B Corp certified with annual recertification verifying social and environmental commitments. Greenly has raised substantial venture funding while maintaining French operational base and B Corp values alignment.

Security & Compliance

• ISO 27001 aligned practices
• B Corp certified since 2022 with annual recertification
• GDPR-native with comprehensive Article 28 DPA
• CNIL-aligned for French regulator expectations
• EU data centres for all sustainability data
• TLS 1.3 for all data in transit
• AES-256 for data at rest
• CSRD/ESRS-aligned workflows native to platform

Integration Ecosystem

• Accounting: SAP, Sage, Cegid, Pennylane, QuickBooks (for activity data)
• Travel and expense: SAP Concur, Expensify, Pleo, Mooncard
• Energy and utilities: native EU energy provider integrations
• CRM: HubSpot, Salesforce, Pipedrive (for context)
• Supplier engagement: built-in survey workflow
• API: REST API for custom integrations
• CSV import: bulk historical data and supplier rosters
• Reporting: ESRS-aligned templates, CDP submission, B Corp reporting

Who Should Switch?

Greenly is ideal for:

• European businesses subject to CSRD (waves 1-4, 2024-2028 applicability)
• B Corp certified and aspiring B Corp businesses needing aligned reporting
• French and Francophone European businesses wanting native-language support
• SMB and mid-market organisations wanting sustainability-consultant support included
• EU-jurisdiction-conscious procurement at any organisation

The Bottom Line

Persefoni remains the right choice for US-headquartered multinationals with SEC climate-disclosure as priority. For European businesses subject to CSRD or wanting EU-jurisdiction sustainability reporting with B Corp values alignment, Greenly is the better choice: French corporate base, CSRD/ESRS-native workflows, B Corp certification, dedicated sustainability-consultant support, and proven adoption across 2,000+ European businesses.

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Looking for more European sustainability and compliance alternatives? See also: CSRD glossary entry and our Mid-2026 EU Tech Sovereignty Progress Report.

Frequently Asked Questions

How does Greenly compare to Persefoni?

Both are leading carbon-accounting platforms supporting CSRD-aligned sustainability reporting. Persefoni is the US-headquartered enterprise leader with deepest US SEC climate-disclosure alignment and broadest enterprise analytics. Greenly is the European leader with CSRD/ESRS-native workflows, French jurisdiction, B Corp values alignment, and dedicated sustainability-consultant support. For European businesses subject to CSRD, Greenly is typically the better structural fit; for US-headquartered multinationals with SEC priority, Persefoni often wins.

What's CSRD and why does it matter for carbon accounting?

The Corporate Sustainability Reporting Directive (CSRD) is the EU regulation expanding mandatory sustainability reporting for European businesses. Approximately 50,000 EU companies will be in CSRD scope by 2028. The reporting framework (European Sustainability Reporting Standards, ESRS) requires extensive emissions disclosure including Scope 1, 2, and 3 plus supplier-chain data. See our [CSRD glossary](/en/glossary/csrd/) for full context.

Is data hosted in the EU?

Yes. Greenly hosts customer emissions data, supplier information, and reporting outputs in EU data centres. Greenly SAS is a French company subject to French and EU law. No US legal exposure for sustainability data, which often contains commercially sensitive supply-chain and operational information.

How does scope 3 (supply chain) work?

Scope 3 emissions — covering supplier-chain, business travel, employee commuting, product use, end-of-life — typically account for 70-95% of corporate emissions. Greenly's supplier-engagement workflow lets you survey suppliers, automate emissions calculation based on activity data, and consolidate scope 3 data across categories. The dedicated sustainability consultants help with methodology and supplier outreach — significant operational value at the data-collection stage.

Can I migrate from Persefoni?

Yes. Standard process: 1) Export Persefoni emissions inventory and configuration, 2) Configure Greenly with equivalent emission factors and categorisation, 3) Bulk-import historical emissions data, 4) Reconfigure supplier engagement workflows, 5) Validate CSRD/ESRS reporting outputs, 6) Train sustainability team. Plan for 8-16 weeks for substantial enterprise migrations.