Siena vs Workiva
Last updated September 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
not established
Headquarters
🇬🇧 GB
No
EU data residency
not established
not established
DSGVO / GDPR
No
not established
Certifications
No
not established
Price from
No
not established
Free plan
No
not established
Open Source
No
not established
Ratings
No
No
Integrations
No
not established
We have not yet completed our own research on Workiva; rows above show only what we can evidence. Check the vendor for specifics.
Where each one wins
Siena
Workiva
Review sentiment not yet compiled.
Data residency & compliance
Siena
Workiva
EU data residency
not established
not established
Transfer mechanism
not established
not established
DPA
not established
not established
Sub-processors
not established
not established
Certifications
No
No