deepset (Haystack)

German AI company behind Haystack — the open-source framework for building production RAG and agent applications

Nscale

European AI hyperscaler with sovereign GPU cloud infrastructure in Norway and UK

deepset (Haystack)

Excellent

24/25

Nscale

Strong

17/25

Score Breakdown

Dimensiondeepset (Haystack)Nscale

Data Residency

Where is your data stored and processed?

deepset (Haystack): EU hosting available for managed platform. On-premises and air-gapped deployments fully supported. Open-source framework runs entirely locally with zero external data flow.

Nscale: Norwegian data centres offer EEA data residency with renewable hydropower. UK facilities planned. Customer workloads stay on Nscale infrastructure. Norway option provides strong EU data residency.

5/5

EU hosting available for managed platform. On-premises and air-gapped deployments fully supported. Open-source framework runs entirely locally with zero external data flow.

4/5

Norwegian data centres offer EEA data residency with renewable hydropower. UK facilities planned. Customer workloads stay on Nscale infrastructure. Norway option provides strong EU data residency.

Legal Jurisdiction

Which laws govern the company and your data?

deepset (Haystack): German GmbH, fully under EU law. Berlin headquarters. No US parent company. Investors include EU and US VCs but corporate governance remains German.

Nscale: UK incorporation provides GDPR adequacy but UK CLOUD Act equivalent (Investigatory Powers Act) applies. Norwegian data centres under EEA law offer stronger protection for EU workloads.

5/5

German GmbH, fully under EU law. Berlin headquarters. No US parent company. Investors include EU and US VCs but corporate governance remains German.

3/5

UK incorporation provides GDPR adequacy but UK CLOUD Act equivalent (Investigatory Powers Act) applies. Norwegian data centres under EEA law offer stronger protection for EU workloads.

Data Retention & Training

Is your data used for model training?

deepset (Haystack): Terms restrict data use to anonymised system data only. No explicit public 'we don't train' statement, but contractual restrictions are clear. Self-hosted gives full control.

Nscale: Infrastructure provider only—Nscale does not access, process, or retain customer workload data. Customers have full control over their compute environments.

4/5

Terms restrict data use to anonymised system data only. No explicit public 'we don't train' statement, but contractual restrictions are clear. Self-hosted gives full control.

5/5

Infrastructure provider only—Nscale does not access, process, or retain customer workload data. Customers have full control over their compute environments.

Certifications

ISO 27001, SOC 2, Cyber Essentials, etc.

deepset (Haystack): SOC 2 Type II, ISO 27001, HIPAA, and CSA STAR Level 1. Comprehensive certification suite for enterprise procurement. Third-party DPO (secjur).

Nscale: No publicly listed certifications yet. Expected for a fast-growing infrastructure company at this stage. Data centre certifications likely in progress.

5/5

SOC 2 Type II, ISO 27001, HIPAA, and CSA STAR Level 1. Comprehensive certification suite for enterprise procurement. Third-party DPO (secjur).

2/5

No publicly listed certifications yet. Expected for a fast-growing infrastructure company at this stage. Data centre certifications likely in progress.

Regulatory Fit

Suitability for regulated industries and professional services

deepset (Haystack): German GmbH with EU hosting, self-hosting option, and strong certifications. One of the best-positioned AI developer tools for EU regulated industries including financial services and healthcare.

Nscale: Strong for organisations needing European GPU compute sovereignty. Norwegian facilities particularly suitable for EU regulated workloads. UK incorporation is adequate but not optimal for strict EU sovereignty requirements.

5/5

German GmbH with EU hosting, self-hosting option, and strong certifications. One of the best-positioned AI developer tools for EU regulated industries including financial services and healthcare.

3/5

Strong for organisations needing European GPU compute sovereignty. Norwegian facilities particularly suitable for EU regulated workloads. UK incorporation is adequate but not optimal for strict EU sovereignty requirements.

Total Score

24/25

17/25

Best For

deepset (Haystack)

Best for EU-headquartered organisations needing maximum data sovereignty; organisations requiring broad certification coverage (SOC 2 Type II, ISO 27001, CSA STAR Level 1); regulated industries (BaFin, CNIL); privacy-conscious teams who need strong data retention controls; organisations that need self-hosted or on-premise deployment; teams on a tight budget.

Nscale

Best for privacy-conscious teams who need strong data retention controls.

Detailed Comparison

deepset (Haystack) vs Nscale: Trust & Compliance Comparison

deepset (Haystack) (deepset, DE) scores 24/25 overall with a Gold (Excellent) trust badge. German AI company behind Haystack — the open-source framework for building production RAG and agent applications. Nscale (Nscale, GB) scores 17/25 with a Silver (Strong) trust badge. European AI hyperscaler with sovereign GPU cloud infrastructure in Norway and UK.

Dimension-by-Dimension Breakdown

#### Data Residency

deepset (Haystack) leads with 5/5 vs 4/5.

●deepset (Haystack) (5/5): EU hosting available for managed platform. On-premises and air-gapped deployments fully supported. Open-source framework runs entirely locally with zero external data flow.

●Nscale (4/5): Norwegian data centres offer EEA data residency with renewable hydropower. UK facilities planned. Customer workloads stay on Nscale infrastructure. Norway option provides strong EU data residency.

#### Legal Jurisdiction

deepset (Haystack) leads with 5/5 vs 3/5.

●deepset (Haystack) (5/5): German GmbH, fully under EU law. Berlin headquarters. No US parent company. Investors include EU and US VCs but corporate governance remains German.

●Nscale (3/5): UK incorporation provides GDPR adequacy but UK CLOUD Act equivalent (Investigatory Powers Act) applies. Norwegian data centres under EEA law offer stronger protection for EU workloads.

#### Data Retention & Training

Nscale leads with 5/5 vs 4/5.

●deepset (Haystack) (4/5): Terms restrict data use to anonymised system data only. No explicit public 'we don't train' statement, but contractual restrictions are clear. Self-hosted gives full control.

●Nscale (5/5): Infrastructure provider only—Nscale does not access, process, or retain customer workload data. Customers have full control over their compute environments.

#### Certifications

deepset (Haystack) leads with 5/5 vs 2/5.

●deepset (Haystack) (5/5): SOC 2 Type II, ISO 27001, HIPAA, and CSA STAR Level 1. Comprehensive certification suite for enterprise procurement. Third-party DPO (secjur).

●Nscale (2/5): No publicly listed certifications yet. Expected for a fast-growing infrastructure company at this stage. Data centre certifications likely in progress.

#### Regulatory Fit

deepset (Haystack) leads with 5/5 vs 3/5.

●deepset (Haystack) (5/5): German GmbH with EU hosting, self-hosting option, and strong certifications. One of the best-positioned AI developer tools for EU regulated industries including financial services and healthcare.

●Nscale (3/5): Strong for organisations needing European GPU compute sovereignty. Norwegian facilities particularly suitable for EU regulated workloads. UK incorporation is adequate but not optimal for strict EU sovereignty requirements.

Certifications at a Glance

Certification	deepset (Haystack)	Nscale
CSA STAR Level 1	Yes	No
ISO 27001	Yes	No
SOC 2 Type II	Yes	No

Overall Verdict

deepset (Haystack) has a clear trust advantage, scoring 24/25 compared to Nscale's 17/25. deepset (Haystack) particularly excels in data residency, legal jurisdiction, certifications, regulatory fit.

Frequently Asked Questions

Which is better for EU compliance, deepset (Haystack) or Nscale?

deepset (Haystack) has a TrustKit score of 24/25 while Nscale scores 17/25. deepset (Haystack) currently rates higher across data residency, legal jurisdiction, data retention, certifications, and regulatory fit.

How do deepset (Haystack) and Nscale compare on data residency?

deepset (Haystack) scores 5/5 for data residency (EU hosting available for managed platform. On-premises and air-gapped deployments fully supported. Open-source framework runs entirely locally with zero external data flow.), while Nscale scores 4/5 (Norwegian data centres offer EEA data residency with renewable hydropower. UK facilities planned. Customer workloads stay on Nscale infrastructure. Norway option provides strong EU data residency.).

Are deepset (Haystack) and Nscale GDPR compliant?

Both tools are assessed across five compliance dimensions. deepset (Haystack) has a regulatory fit score of 5/5 and Nscale scores 3/5. Check the full comparison above for a detailed breakdown.

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