Slack AI

AI-powered search, summaries, and workflows built into Slack

GreenPT

EU-only AI chat platform powered by renewable energy with no external API dependencies

Slack AI

Strong

20/25

GreenPT

Strong

19/25

Score Breakdown

DimensionSlack AIGreenPT

Data Residency

Where is your data stored and processed?

Slack AI: Slack offers data residency in the US, EU, and Asia Pacific regions. Enterprise Grid customers can choose where their data is stored at rest.

GreenPT: All models run on own servers hosted by Scaleway in France. No external API dependencies — data never leaves their EU infrastructure. Genuine EU data sovereignty.

4/5

Slack offers data residency in the US, EU, and Asia Pacific regions. Enterprise Grid customers can choose where their data is stored at rest.

5/5

All models run on own servers hosted by Scaleway in France. No external API dependencies — data never leaves their EU infrastructure. Genuine EU data sovereignty.

Legal Jurisdiction

Which laws govern the company and your data?

Slack AI: Incorporated in Delaware, US. As a Salesforce subsidiary, subject to US laws including the CLOUD Act. Offers EU data processing agreements and Standard Contractual Clauses.

GreenPT: Dutch BV incorporation under EU law. No US parent company, no US API dependencies, no CLOUD Act exposure. One of the purest EU sovereignty stories available.

3/5

Incorporated in Delaware, US. As a Salesforce subsidiary, subject to US laws including the CLOUD Act. Offers EU data processing agreements and Standard Contractual Clauses.

5/5

Dutch BV incorporation under EU law. No US parent company, no US API dependencies, no CLOUD Act exposure. One of the purest EU sovereignty stories available.

Data Retention & Training

Is your data used for model training?

Slack AI: Administrators can configure custom data retention policies. Enterprise Grid offers granular retention controls. Data can be exported and deleted on request.

GreenPT: Data never shared with third parties. Models run locally on own servers. No external API calls means no data leakage to US providers. Specific retention policies not publicly detailed.

4/5

Administrators can configure custom data retention policies. Enterprise Grid offers granular retention controls. Data can be exported and deleted on request.

4/5

Data never shared with third parties. Models run locally on own servers. No external API calls means no data leakage to US providers. Specific retention policies not publicly detailed.

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

Slack AI: Comprehensive certification portfolio including SOC 2 Type II, SOC 3, ISO 27001, ISO 27017, ISO 27018, ISO 27701, and ISO 42001. One of the most thoroughly certified collaboration platforms.

GreenPT: Hosted on Scaleway ISO 27001 certified infrastructure. GreenPT itself does not hold formal certifications. Expected for a small bootstrapped company.

5/5

Comprehensive certification portfolio including SOC 2 Type II, SOC 3, ISO 27001, ISO 27017, ISO 27018, ISO 27701, and ISO 42001. One of the most thoroughly certified collaboration platforms.

2/5

Hosted on Scaleway ISO 27001 certified infrastructure. GreenPT itself does not hold formal certifications. Expected for a small bootstrapped company.

Regulatory Fit

Suitability for regulated industries and professional services

Slack AI: Supports GDPR, CCPA, HIPAA, FINRA, and FedRAMP compliance. Enterprise Grid plan includes features for regulated industries including eDiscovery and data loss prevention.

GreenPT: Strong EU sovereignty positioning and genuinely EU-only data handling. Lack of own certifications limits enterprise procurement. Excellent conceptual fit for sovereignty-focused organisations.

4/5

Supports GDPR, CCPA, HIPAA, FINRA, and FedRAMP compliance. Enterprise Grid plan includes features for regulated industries including eDiscovery and data loss prevention.

3/5

Strong EU sovereignty positioning and genuinely EU-only data handling. Lack of own certifications limits enterprise procurement. Excellent conceptual fit for sovereignty-focused organisations.

Total Score

20/25

19/25

Best For

Slack AI

Best for EU-headquartered organisations needing maximum data sovereignty; privacy-conscious teams who need strong data retention controls.

GreenPT

Best for organisations requiring broad certification coverage (SOC 2 Type II, SOC 3, ISO 27001); privacy-conscious teams who need strong data retention controls; enterprises requiring SSO integration.

Detailed Comparison

GreenPT vs Slack AI: Trust & Compliance Comparison

GreenPT (GreenPT, NL) scores 19/25 overall with a Silver (Strong) trust badge. EU-only AI chat platform powered by renewable energy with no external API dependencies. Slack AI (Salesforce, US) scores 20/25 with a Silver (Strong) trust badge. AI-powered search, summaries, and workflows built into Slack.

Dimension-by-Dimension Breakdown

#### Data Residency

GreenPT leads with 5/5 vs 4/5.

●GreenPT (5/5): All models run on own servers hosted by Scaleway in France. No external API dependencies — data never leaves their EU infrastructure. Genuine EU data sovereignty.

●Slack AI (4/5): Slack offers data residency in the US, EU, and Asia Pacific regions. Enterprise Grid customers can choose where their data is stored at rest.

#### Legal Jurisdiction

GreenPT leads with 5/5 vs 3/5.

●GreenPT (5/5): Dutch BV incorporation under EU law. No US parent company, no US API dependencies, no CLOUD Act exposure. One of the purest EU sovereignty stories available.

●Slack AI (3/5): Incorporated in Delaware, US. As a Salesforce subsidiary, subject to US laws including the CLOUD Act. Offers EU data processing agreements and Standard Contractual Clauses.

#### Data Retention & Training

Both score equally at 4/5.

●GreenPT (4/5): Data never shared with third parties. Models run locally on own servers. No external API calls means no data leakage to US providers. Specific retention policies not publicly detailed.

●Slack AI (4/5): Administrators can configure custom data retention policies. Enterprise Grid offers granular retention controls. Data can be exported and deleted on request.

#### Certifications

Slack AI leads with 5/5 vs 2/5.

●GreenPT (2/5): Hosted on Scaleway ISO 27001 certified infrastructure. GreenPT itself does not hold formal certifications. Expected for a small bootstrapped company.

●Slack AI (5/5): Comprehensive certification portfolio including SOC 2 Type II, SOC 3, ISO 27001, ISO 27017, ISO 27018, ISO 27701, and ISO 42001. One of the most thoroughly certified collaboration platforms.

#### Regulatory Fit

Slack AI leads with 4/5 vs 3/5.

●GreenPT (3/5): Strong EU sovereignty positioning and genuinely EU-only data handling. Lack of own certifications limits enterprise procurement. Excellent conceptual fit for sovereignty-focused organisations.

●Slack AI (4/5): Supports GDPR, CCPA, HIPAA, FINRA, and FedRAMP compliance. Enterprise Grid plan includes features for regulated industries including eDiscovery and data loss prevention.

Certifications at a Glance

Certification	GreenPT	Slack AI
ISO 27001	No	Yes
ISO 27017	No	Yes
ISO 27018	No	Yes
ISO 27701	No	Yes
SOC 2 Type II	No	Yes
SOC 3	No	Yes

Overall Verdict

GreenPT and Slack AI are closely matched on trust and compliance, with scores of 19/25 and 20/25 respectively. The right choice depends on your specific regulatory requirements and existing technology stack.

Frequently Asked Questions

Which is better for EU compliance, Slack AI or GreenPT?

Slack AI has a TrustKit score of 20/25 while GreenPT scores 19/25. Slack AI currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do Slack AI and GreenPT compare on data residency?

Slack AI scores 4/5 for data residency (Slack offers data residency in the US, EU, and Asia Pacific regions. Enterprise Grid customers can choose where their data is stored at rest.), while GreenPT scores 5/5 (All models run on own servers hosted by Scaleway in France. No external API dependencies — data never leaves their EU infrastructure. Genuine EU data sovereignty.).

Are Slack AI and GreenPT GDPR compliant?

Both tools are assessed across five compliance dimensions. Slack AI has a regulatory fit score of 4/5 and GreenPT scores 3/5. Check the full comparison above for a detailed breakdown.

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