Last updated 27 August 2026.
Who we are
OysterQ AS (org. nr 936 794 750) is the data controller for the personal data described here. You can reach us at hello@oysterq.com.
What OysterQ does
OysterQ is a market-intelligence tool for Norwegian audit and accounting firms. It reads public registers and filed company accounts, and presents them as market analysis. Most of what it holds is information about companies, which is not personal data. Some of it identifies people, and that is what this notice is about.
The personal data we hold
| What | Where it comes from | Why we hold it |
|---|---|---|
| Names of registered auditors and accountants, and the firm each is registered with | Finanstilsynet’s public registers | To show which professionals work at which firms, which is the basis of the market analysis our customers use |
| Changes in those registrations over time — that a named person moved from one firm to another, and roughly when | Built by us, from daily snapshots of those registers taken since 14 August 2026 | To show how firms gain and lose professionals, which the registers themselves do not record |
| Names and contact details of our own customers’ users | Given to us when an account is created | To provide the service and to contact account holders about it |
We do not hold any special category data as defined in Article 9 of the GDPR — nothing about health, beliefs, ethnicity, political views, union membership or sexual orientation. We do not use personal data for profiling or automated decision-making.
Our legal basis
Register information about professionals
We rely on legitimate interests (GDPR Article 6(1)(f)). Our interest is in providing market intelligence about a regulated profession; our customers’ interest is in understanding the market they compete in. The information concerns people acting in a professional capacity, is already published by a public authority, and is not sensitive.
We recognise that combining daily snapshots creates something the source registers do not publish: an individual’s registration history over time. If you would prefer not to appear, see objecting below.
Our customers’ users
We rely on the contract with the customer (Article 6(1)(b)) — we cannot provide accounts without holding them.
How you were told
We did not collect the register information from you, so Article 14 applies. Contacting every registered professional individually would involve disproportionate effort, so we publish this notice instead, as Article 14(5)(b) permits.
How long we keep it
- Register information and its history: for as long as we operate the service. The historical record is the point of it — a market that only shows today tells you nothing about how it got here.
- Customer account data: for the life of the account, and up to twelve months afterwards so an account can be restored if it is closed by mistake.
- Server logs: rotated automatically and retained for a matter of weeks.
Who else sees it
- Enin AS supplies the company accounts data we read.
- Hetzner Online GmbH hosts our servers, within the EU/EEA.
- Our customers — audit and accounting firms — see the register information through the product. That is what it is for.
We do not sell personal data, and we do not transfer it outside the EU/EEA.
Your rights
Under the GDPR and the Norwegian Personal Data Act you may ask us to:
- tell you what we hold about you, and give you a copy;
- correct anything that is wrong;
- delete it, or restrict what we do with it;
- provide it in a portable format, where that right applies;
- stop processing it — see below.
Objecting
Because we rely on legitimate interests, you have the right to object under Article 21. Write to hello@oysterq.com and tell us who you are. We will stop unless we can show compelling legitimate grounds that override your interests, and we will explain our reasoning either way.
One thing worth being straight about: the underlying registers are published by Finanstilsynet, and removing you from OysterQ does not remove you from them.
Complaining
If you are not satisfied with how we handle a request, you can complain to Datatilsynet, the Norwegian Data Protection Authority (datatilsynet.no). We would rather you came to us first.
Cookies
This website sets no cookies and uses no analytics or tracking.
The application at app.oysterq.com sets one cookie, which keeps you signed in. It is necessary for the service to work and is not used for tracking or advertising, so it does not require consent.
Accuracy of the data
OysterQ reports what companies and public registers have filed. We do not audit, verify or adjust those figures, and we do not guarantee that they are complete or correct. Figures may be restated, filed late, or contain errors made by whoever filed them. Nothing in OysterQ is advice, and it should not be the only basis for a decision.
If you believe information about you is wrong, tell us and we will look into it — though where the error is in the public register, it usually has to be corrected there before we can reflect the change.
Changes to this notice
If we change what we do with personal data, we will update this page and change the date at the top.