VerdictDatasite is narrowly ahead overall, 9.0 to 8.9, with the better security and deal tools scores; Ansarada answers with a higher ease-of-use score and a free trial. Both list ISO 27001 and SOC 2, single sign-on and AI tools. Datasite adds built-in redaction and a mobile app. Neither publishes a price.
Ansarada (founded 2005, head office in Australia) and Datasite (founded 1999, United States) both lean on AI and both sell by quote. In our data Ansarada is also tagged for governance and deal readiness, meaning work that starts well before a sale. For a UK company planning a process rather than reacting to an approach, that difference in emphasis is worth weighing alongside the scores.
Score duel on our five UK criteria
Datasite is ahead overall, 9.0 to 8.9 out of 10. Ansarada wins 1 of the 5 criteria, Datasite wins 4. The widest gap is on security & UK GDPR, 0.3 points in favour of Datasite, a criterion worth 30% of the overall score.
Ansarada and Datasite: score duel on five UK criteria
Ansarada8.91 criterion won
vs
Datasite9.04 criteria won
Security & UK GDPR30% weight
Ansarada9.3
Datasite9.6
Datasite by 0.3 Weighted: 2.79 vs 2.88
Deal tools25% weight
Ansarada9.4
Datasite9.5
Datasite by 0.1 Weighted: 2.35 vs 2.38
Ease of use20% weight
Ansarada8.0
Datasite7.8
Ansarada by 0.2 Weighted: 1.60 vs 1.56
Value for money15% weight
Ansarada8.0
Datasite8.3
Datasite by 0.3 Weighted: 1.20 vs 1.25
Support10% weight
Ansarada9.2
Datasite9.3
Datasite by 0.1 Weighted: 0.92 vs 0.93
Widest gap: Security & UK GDPR, 0.3 points to Datasite. Overall, Datasite by 0.1.
datarooms.ukEditorial scores, not user reviews
Editorial scores out of 10 from our UK-weighted model. Weighted points are the score times the criterion weight; they add up to the overall score. Source: our facts database.
Datasite's lead is spread across several criteria in small steps, while Ansarada's advantage is concentrated in ease of use. On a deal where many outside parties use the room briefly, that one criterion can matter more than its 20% weight suggests.
What only one of them has
Of the 12 features we track, the two share 8. Ansarada lists nothing on our feature list that Datasite lacks. Only Datasite lists redaction and mobile app. Neither lists e-signature and API access.
Only Ansarada
Nothing on our list
Only Datasite
Redaction
Mobile app
Both
Q&A workflow
Full audit trail
Dynamic watermarks
Single sign-on
Two-factor login
Bulk upload
Document rights control
AI tools
Neither lists
E-signature
API access
For a UK seller, redaction is the gap to plan around with Ansarada: mask personal data in HR and customer files before upload. Datasite's mobile app matters mostly to principals and surveyors working away from a desk.
Cost in pounds, with and without VAT
Both quote. Ansarada's free trial means you can see the room before talking price; with Datasite the demonstration is the starting point. The calculator shows a typical market range for an enterprise project quote of your size on both sides, so you can sense-check the proposals you receive.
VAT: UK-registered suppliers add it to the invoice; for suppliers based abroad, UK businesses usually account for it under the reverse charge. Ask your accountant how it applies to you.
Indicative cost for 6 months, excluding VAT
Ansarada
£4,000 to £12,000 Typical market range for a project quote of this size Ansarada prices by quote; this is not a price from Ansarada
Datasite
£4,000 to £12,000 Typical market range for a project quote of this size Datasite prices by quote; this is not a price from Datasite
Indicative only, confirm with the provider. Published dollar prices converted at $1 = £0.75; higher tiers, storage, add-ons and the exchange rate on the invoice date change the real figure. Quote ranges follow our deal-type budget calculator.
UK GDPR and hosting: what to ask
Neither is UK-headquartered. Ask Ansarada and Datasite for the hosting region of a UK room, the transfer mechanism for any access from Australia or the United States, and how AI processing appears in their sub-processor lists.
Check
Ansarada
Datasite
Head office
Australia
United States
Certifications listed
ISO 27001, SOC 2
ISO 27001, SOC 2
Two-factor login
Yes
Yes
Single sign-on
Yes
Yes
Full audit trail
Yes
Yes
Built-in redaction
Not listed
Yes
Hosting region for a UK room
Ask the provider
Ask the provider
Data processing agreement
Ask the provider
Ask the provider
Sub-processor list
Ask the provider
Ask the provider
Transfer route if data leaves the UK
Ask the provider
Ask the provider
Where AI processing happens
Ask the provider
Ask the provider
Facts as listed in our provider database. "Ask the provider" means we hold no verified answer; get it in writing for your room.
Where will a UK room be hosted?Ask for the region in writing and whether it can be fixed in the contract. Our data does not record hosting, so treat any answer from a sales call as provisional until it is in the order form.
Who is the processor, and under which agreement?Get the data processing agreement before documents go in. Check it names the contracting entity, the security measures and how the provider helps you answer subject access requests.
Which sub-processors touch the documents?Hosting, support, email delivery and analytics vendors all count. Ask for the list and how you are told about changes during the deal.
Can anyone outside the UK see the files?Ansarada lists Australia and Datasite lists the United States as head office. Support access from abroad is a restricted transfer, so ask which safeguard covers it: UK adequacy regulations, the UK International Data Transfer Agreement or the UK Addendum to the EU standard contractual clauses.
What happens to documents in the AI tools?Ansarada and Datasite list AI tools. Ask where that processing runs, which model provider is involved and whether your content is used for training. A DPIA may be needed if personal data goes through it.
What happens to the room at completion?Agree the archive format, how long read-only access lasts and when the provider deletes everything, with a certificate of deletion if your retention policy needs one.
How each copes with four UK deals
Takeover Code bid
A target board expecting possible approaches benefits from a room that is ready before an offer period starts, which plays to Ansarada's emphasis on deal readiness. Once a bid is live, Datasite's redaction and mobile app suit a fast offer timetable with many advisers on both sides.
AIM admission
A company heading for AIM often spends months on housekeeping before the nominated adviser starts formal due diligence. Ansarada's readiness focus fits that phase, and its ease-of-use lead helps a finance team doing the work itself. Datasite fits better once banks, reporting accountants and lawyers all join and redaction is needed.
SEIS or EIS round
For an early-stage round, Ansarada's free trial is the practical difference: a founder can try the room before receiving a quote. Datasite lists no free trial and is aimed at larger processes. For most SEIS rounds, a room with a published monthly price may be more proportionate than either.
Commercial property sale
Both list AI tools, which matter most when buyers face long lease bundles. Datasite's redaction is useful for tenant data and its mobile app for surveyors on site. Ansarada lists neither, so prepare redacted copies before upload.
More deal types, each with a UK shortlist, on our solutions page.
Which to choose
Choose Ansarada if
You want to prepare the company well ahead of a sale or raise.
A free trial before talking price matters.
Outside parties need the easier room, judged on our ease-of-use scores.
Choose Datasite if
You need redaction or a mobile app.
The process is a large, bank-run auction.
Security and deal tool scores carry the most weight for you.
Still unsure? Our data room quiz matches a shortlist to your deal type, and the UK ranking puts both in the context of all 18 providers we track.
Ansarada vs Datasite: questions
What will Ansarada and Datasite cost in pounds?
Both price by quote, so the figure depends on the months, pages and users in your project. For a sense check, our calculator above shows a typical market range for an enterprise project quote of your size. Ask each for a sterling quote that states VAT treatment and the rate for extra months.
Which features does only one of them have?
Ansarada lists nothing on our feature list that Datasite lacks. Only Datasite lists redaction and mobile app. Both list Q&A workflow, full audit trail, dynamic watermarks, single sign-on and two-factor login and more.
Can I try Ansarada and Datasite before paying?
Ansarada: free trial. Datasite: no free trial listed. Where there is no free trial, ask for a guided demonstration using a copy of your own folder index rather than the provider's sample room.
Do Ansarada and Datasite both have AI tools?
Yes, both list AI tools in our facts database. Ask each for a demonstration on your own documents and a written answer on where AI processing happens and whether your data trains any model.
Which suits a company preparing for a sale next year?
Ansarada, on balance, because readiness work happens before buyers arrive and its free trial lets you start without a quote. Datasite is stronger once the live process begins.
Is either provider based in the UK?
No. Ansarada lists Australia and Datasite the United States as head office. Ask each where a UK room is hosted.