FirmOS

AI-powered automation platform for accounting firms

Pennylane

French AI accounting platform connecting SMEs and accountants in real time

FirmOS

Caution

9/25

Pennylane

Excellent

22/25

Score Breakdown

DimensionFirmOSPennylane

Data Residency

Where is your data stored and processed?

FirmOS: US-based infrastructure. No EU data residency option. Financial client data processed in US.

Pennylane: Financial data hosted in France on EU infrastructure with no cross-border transfers outside the EU.

2/5

US-based infrastructure. No EU data residency option. Financial client data processed in US.

5/5

Financial data hosted in France on EU infrastructure with no cross-border transfers outside the EU.

Legal Jurisdiction

Which laws govern the company and your data?

FirmOS: US company. Subject to US jurisdiction. Handles sensitive financial data under US data protection standards.

Pennylane: French SAS incorporated and operating under French and EU law; directly subject to CNIL enforcement.

2/5

US company. Subject to US jurisdiction. Handles sensitive financial data under US data protection standards.

5/5

French SAS incorporated and operating under French and EU law; directly subject to CNIL enforcement.

Data Retention & Training

Is your data used for model training?

FirmOS: Early-stage product. Handles sensitive financial documents. Retention and deletion policies not extensively documented publicly.

Pennylane: Client accounting data is isolated per account and not used for cross-client model training.

2/5

Early-stage product. Handles sensitive financial documents. Retention and deletion policies not extensively documented publicly.

4/5

Client accounting data is isolated per account and not used for cross-client model training.

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

FirmOS: No security certifications publicly disclosed. Early-stage startup handling financial data.

Pennylane: ISO 27001 certification in place; SOC 2 audit not confirmed for this relatively young platform.

1/5

No security certifications publicly disclosed. Early-stage startup handling financial data.

3/5

ISO 27001 certification in place; SOC 2 audit not confirmed for this relatively young platform.

Regulatory Fit

Suitability for regulated industries and professional services

FirmOS: Purpose-built for accounting but lacks formal compliance certifications. Accounting firms should evaluate data handling practices given the sensitivity of financial data.

Pennylane: Purpose-built for French and EU accounting standards with CNIL-compliant data practices and PSD2 open banking integration.

2/5

Purpose-built for accounting but lacks formal compliance certifications. Accounting firms should evaluate data handling practices given the sensitivity of financial data.

5/5

Purpose-built for French and EU accounting standards with CNIL-compliant data practices and PSD2 open banking integration.

Total Score

9/25

22/25

Best For

FirmOS

Best for teams that prioritise data residency (scores 2/5) and need a review required-tier tool.

Pennylane

Best for EU-headquartered organisations needing maximum data sovereignty; regulated industries (CNIL, AMF); privacy-conscious teams who need strong data retention controls.

Detailed Comparison

FirmOS vs Pennylane: Trust & Compliance Comparison

FirmOS (FirmOS, US) scores 9/25 overall with a Review Required (Caution) trust badge. AI-powered automation platform for accounting firms. Pennylane (Pennylane, FR) scores 22/25 with a Gold (Excellent) trust badge. French AI accounting platform connecting SMEs and accountants in real time.

Dimension-by-Dimension Breakdown

#### Data Residency

Pennylane leads with 5/5 vs 2/5.

●FirmOS (2/5): US-based infrastructure. No EU data residency option. Financial client data processed in US.

●Pennylane (5/5): Financial data hosted in France on EU infrastructure with no cross-border transfers outside the EU.

#### Legal Jurisdiction

Pennylane leads with 5/5 vs 2/5.

●FirmOS (2/5): US company. Subject to US jurisdiction. Handles sensitive financial data under US data protection standards.

●Pennylane (5/5): French SAS incorporated and operating under French and EU law; directly subject to CNIL enforcement.

#### Data Retention & Training

Pennylane leads with 4/5 vs 2/5.

●FirmOS (2/5): Early-stage product. Handles sensitive financial documents. Retention and deletion policies not extensively documented publicly.

●Pennylane (4/5): Client accounting data is isolated per account and not used for cross-client model training.

#### Certifications

Pennylane leads with 3/5 vs 1/5.

●FirmOS (1/5): No security certifications publicly disclosed. Early-stage startup handling financial data.

●Pennylane (3/5): ISO 27001 certification in place; SOC 2 audit not confirmed for this relatively young platform.

#### Regulatory Fit

Pennylane leads with 5/5 vs 2/5.

●FirmOS (2/5): Purpose-built for accounting but lacks formal compliance certifications. Accounting firms should evaluate data handling practices given the sensitivity of financial data.

●Pennylane (5/5): Purpose-built for French and EU accounting standards with CNIL-compliant data practices and PSD2 open banking integration.

Certifications at a Glance

Certification	FirmOS	Pennylane
ISO 27001	No	Yes

Overall Verdict

Pennylane has a clear trust advantage, scoring 22/25 compared to FirmOS's 9/25. Pennylane particularly excels in data residency, legal jurisdiction, data retention & training, certifications, regulatory fit.

Frequently Asked Questions

Which is better for EU compliance, FirmOS or Pennylane?

FirmOS has a TrustKit score of 9/25 while Pennylane scores 22/25. Pennylane currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do FirmOS and Pennylane compare on data residency?

FirmOS scores 2/5 for data residency (US-based infrastructure. No EU data residency option. Financial client data processed in US.), while Pennylane scores 5/5 (Financial data hosted in France on EU infrastructure with no cross-border transfers outside the EU.).

Are FirmOS and Pennylane GDPR compliant?

Both tools are assessed across five compliance dimensions. FirmOS has a regulatory fit score of 2/5 and Pennylane scores 5/5. Check the full comparison above for a detailed breakdown.

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