Siena vs Workiva
Last updated October 2026
Looking for a European alternative to Workiva? Here's how Siena compares, on EU hosting, GDPR and what it does.
Our pick for a European buyer: Siena. We weight data residency, GDPR and EU jurisdiction above everything else — that is the constraint this directory exists to solve.
What it is
Regulatory reporting software for MiFID, MiFIR, EMIR, SFTR and IFRS9
Cloud platform for connected reporting, compliance, and ESG workflows.
Headquarters
🇬🇧 GB
🇺🇸 US · 2008
EU data residency
Yes, for all customers
Available on some plansEU hosting in Ireland is available via eu.wdesk.com, but not guaranteed as default for all customers.
DSGVO / GDPR
No
Yes
Certifications
No
ISO/IEC 27001:2022, SOC 1, SOC 2, FedRAMP Moderate
Price from
No
No
Free plan
No
No
Open Source
No
No
Integrations
No
Anaplan, BlackLine, Google, Microsoft, Oracle +3
Where each one wins
Siena
Workiva
Strengths
- +Streamlines complex reporting workflows
- +Strong audit trail and version control
- +Robust integrations with ERP systems
- +Supports XBRL/iXBRL for regulatory filings
Limitations
- −Steep learning curve for new users
- −Custom pricing can be high for small teams
- −Limited transparency on subprocessor details
- −API capabilities may not cover all data export needs
Data residency & compliance
Siena
Workiva
EU data residency
Yes, for all customers
Available on some plansEU hosting in Ireland is available via eu.wdesk.com, but not guaranteed as default for all customers.
Transfer mechanism
Not required — data stays in the EU
not established
DPA
not established
not established
Sub-processors
not established
not established
Certifications
No
ISO/IEC 27001:2022, SOC 1, SOC 2, FedRAMP Moderate
Features
Siena
Feature breakdown not yet compiled.
Workiva
- Financial & Regulatory Reporting
- XBRL/iXBRL tagging, SEC filing support, Reporting workflows, Audit trail
- Connected Data & Collaboration
- Live-linked data across documents, Controlled permissions, Version history, Real-time collaboration
- Governance, Risk & Compliance (GRC)
- SOX compliance support, Internal controls management, Evidence collection, Digital support binders
- Sustainability & ESG
- ESG data collection, Sustainability reporting, Framework alignment
- Integrations
- 70+ pre-built connectors, Oracle Cloud ERP, Anaplan, BlackLine, SAP, Workday, Google & Microsoft integrations