Who each option is best for, and where either supplier is deliberately narrower.
Vendor comparison
BigID vs Ketch: capability comparison
A side-by-side comparison of BigID and Ketch across RoPA, DPIA, DSAR, vendor risk, AI governance and evidence workflows - with Acompli shown as a focused, human-approved, evidence-traceable alternative to both for Ireland, UK and EU teams.
BigIDKetchComparisonAcompli alternative
Which public claims, review signals, caveats and capability rows are evidenced.
How much work it takes to implement, maintain and export the privacy record.
The questions a privacy team should ask before switching or shortlisting.
On this page
Key takeaways
- BigID and Ketch are compared here on public, evidence-framed capability coverage: BigID is evidenced for 15 of 20 tracked capabilities, Ketch for 19.
- The clearest differences: BigID adds nothing Ketch lacks; Ketch adds Policy/notice management, Training module, Spreadsheet import, Public pricing.
- Acompli is the focused third option: connected RoPA, DPIA, DSAR, risk, vendor and AI-governance records, each human-approved and traceable to its source evidence, built around GDPR Article 30, the Irish DPC and the UK ICO.
- "Y" means publicly evidenced in the reviewed sources, "N" means not clearly evidenced here (not proof a vendor cannot provide it). Verify live scope, pricing and exports with each vendor.
Comparison workflow
From company profile to shortlist decision
01Short answerBigID vs Ketch02At a glanceBigID vs Ketch vs Acompli at a glance03Capability comparisonBigID vs Ketch: capability by capability04Where each is strongerBigID vs Ketch: the differences that matter05Shortlisting notesChoosing between BigID, Ketch and Acompli06Ireland & UKBigID vs Ketch for RoPA in Ireland and the UK
Market lanechecked
Best-fit buyerchecked
Public strengthschecked
Capability evidencechecked
Overlapchecked
Gapschecked
Exportschecked
Shortlist fitchecked
01Short answer
BigID vs Ketch
BigID is positioned as: Enterprise data security posture management (DSPM), data discovery, AI governance and privacy automation. Ketch is positioned as: Enterprise data privacy, consent/CMP, DSR, data mapping, AI, assessments and privacy orchestration.
For an Irish, UK or EU privacy team weighing BigID against Ketch, Acompli is the focused alternative to both: it keeps RoPA, DPIA, DSAR, risk, vendor and AI-governance records connected and defensible, with every record human-approved and every Article 30 field traceable to the assessment that produced it.
Published by Acompli and last reviewed on 29 June 2026. Capability coverage below is evidence-framed from public sources for all three.
02At a glance
BigID vs Ketch vs Acompli at a glance
| Decision question | BigID | Ketch | Acompli |
|---|---|---|---|
| Best fit | Large enterprises with complex multi-cloud data estates needing data discovery, classification, security (DSPM) and AI risk governance at scale | Enterprises and mid-market teams looking for broad data privacy management with consent, cookie management, DSARs, data mapping and assessments across GDPR, CCPA and US state laws | Privacy teams that want focused, connected GDPR and AI governance records - RoPA, DPIA, DSAR, risk, vendor - anchored in Ireland, the UK and the EU, without an enterprise data-security rollout |
| Operating model | An enterprise data-security and discovery platform (DSPM): classification across 100+ sources, data mapping, DSR, consent, AI security and privacy automation | A broad US data-privacy and consent platform: consent/CMP, cookie management, DSR, data mapping, AI and assessments with transparent tiered pricing | Connected, evidence-traceable privacy and AI-governance records across RoPA, DPIA, DSAR, risk, vendors, data mapping and code scan |
| When to choose it | Choose BigID when data discovery, classification and data security at scale across a complex data estate are the central requirement | Choose Ketch when consent, cookie management and broad data-privacy operations across multiple regimes, with transparent self-serve pricing, are central requirements | Choose Acompli when the priority is defensible privacy records and EU/UK fit rather than enterprise-wide data discovery and security |
03Capability comparison
BigID vs Ketch: capability by capability
Each capability is marked Y (publicly evidenced in the reviewed sources) or N (not clearly evidenced here, which is not proof the vendor cannot provide it). Acompli is shown in the final column.
| Capability | BigID | Ketch | Acompli |
|---|---|---|---|
| DPIA/PIA assessments | Y | Y | Y |
| RoPA / Article 30 | Y | Y | Y |
| DSAR / privacy rights | Y | Y | Y |
| Data mapping | Y | Y | Y |
| Vendor risk | Y | Y | Y |
| Privacy risk | Y | Y | Y |
| AI governance | Y | Y | Y |
| Consent management | Y | Y | N |
| Cookie/tracker scanning | Y | Y | N |
| Breach/incident management | N | N | N |
| Retention management | Y | Y | Y |
| Policy/notice management | N | Y | N |
| Training module | N | Y | N |
| Approval workflows | Y | Y | Y |
| Audit trail | Y | Y | Y |
| Role-based access control | Y | Y | Y |
| Multi-entity support | Y | Y | Y |
| Spreadsheet import | N | Y | Y |
| PDF/CSV/Excel export | Y | Y | Y |
| Public pricing | N | Y | N |
04Where each is stronger
BigID vs Ketch: the differences that matter
On the tracked capabilities, BigID and Ketch overlap heavily; the decision usually turns on the handful of capabilities only one of them evidences, plus depth, jurisdiction fit and price.
- No capability is evidenced for BigID that Ketch lacks in the tracked set.
- Only Ketch (not BigID) is evidenced for: Policy/notice management, Training module, Spreadsheet import, Public pricing.
- Acompli's wedge versus both: assessment-fed, evidence-traceable records (every Article 30 field links back to the approved assessment that produced it), human approval on every record, and a per-entity export the DPC or ICO can read without a platform login.
05Shortlisting notes
Choosing between BigID, Ketch and Acompli
BigID and Ketch should each be assessed on their published fit above. Acompli belongs on the shortlist where the priority is connected, defensible privacy records that stay current between audits, with a short route from draft to reviewed decision.
- Shortlist BigID or Ketch where their broader suite, integrations or specific modules match the programme you want to run.
- Shortlist Acompli where the pain is stale RoPA fields, isolated DPIAs, disconnected DSAR files, supplier evidence drift, or risk registers that do not trace back to source evidence.
- Ask all three to demonstrate the same workflow end to end: a new processing activity, its assessment, the RoPA update, supplier evidence, the privacy risk and an exportable audit trail.
06Ireland & UK
BigID vs Ketch for RoPA in Ireland and the UK
Records of processing activities are required under GDPR Article 30 - a controller record under Article 30(1) and a separate processor record under Article 30(2). In Ireland the Data Protection Commission (DPC) publishes Article 30 guidance; in the UK the ICO sets out what must be documented under UK GDPR.
Whichever of BigID or Ketch you weigh, the question for an Irish or UK team is the depth of the Article 30 record and how defensibly it exports. Acompli's difference is provenance: every Article 30 field traces back to the approved assessment that produced it, and each legal entity gets a self-contained export the DPC or ICO can read without logging in.
- GDPR Article 30(1) and 30(2) - controller and processor records modelled separately, scoped by legal entity.
- DPC (Ireland) and ICO (UK) Article 30 documentation, with EU and UK GDPR distinguished on one register.
- Per-entity, self-contained export so each subsidiary can answer its own supervisory authority.
Acompli answers
Acompli: the focused alternative to both
Is Acompli an alternative to both BigID and Ketch?
Acompli is a focused alternative to both BigID and Ketch for teams that want connected, evidence-traceable RoPA, DPIA, DSAR, risk, vendor and AI-governance records rather than the broadest feature set. Every record is human-approved and every Article 30 field traces back to the approved assessment that produced it, built around GDPR Article 30, the Irish DPC and the UK ICO.
BigID vs Ketch: which is better for Irish and UK GDPR?
For Irish and UK GDPR the deciding factors are Article 30(1)/(2) coverage, DPC and ICO fit, and a self-contained per-entity export - so the better choice between BigID and Ketch is the one that documents both controller and processor records and exports them defensibly. Acompli is built specifically around that: EU and UK GDPR distinguished on one register, every field evidence-linked, and an export the DPC or ICO can read without a platform login.
What should I compare when choosing between BigID and Ketch?
Compare BigID and Ketch on one real workflow end to end: a new processing activity, its assessment, the resulting Article 30 RoPA update, the supplier evidence, the privacy risk entry and an exportable audit trail. Whether each value is evidenced (the capability table above) matters less than whether the records stay connected and defensible after approval - which is the test Acompli is designed to pass.
Acompli overlap
Related Acompli workflows
BigID vs Acompli
Compare BigID directly with Acompli across RoPA, DPIA, DSAR, risk and vendor records.
Open moduleKetch vs Acompli
Compare Ketch directly with Acompli across RoPA, DPIA, DSAR, risk and vendor records.
Open moduleAssessments
Run DPIAs, LIAs, TIAs, processor reviews and AI Act assessments with templates, AI support and human approval.
Open moduleRoPA management
Maintain Article 30 records that stay linked to approved assessments, systems, suppliers and transfers.
Open moduleCompare BigID, Ketch and Acompli against a real workflow.
Bring one RoPA, DPIA, DSAR, vendor, risk or AI-governance requirement and map which parts BigID covers, which Ketch covers, and where Acompli keeps the evidence connected and defensible.