Who we are

We are Polylogarithmic Technology Ltd, a UK-based company offering linked company and control information derived from public records. Our website and API services help users identify relationships between companies, officers, persons with significant control (PSCs), and beneficial owners.

Our role under data protection law

In relation to the personal data we process from public sources (such as Companies House and the Charity Commission), we act as a data controller. This means we determine the purpose and means of structuring, linking, and displaying that information on our platform. We are committed to processing personal data lawfully, fairly, and transparently, in accordance with the UK General Data Protection Regulation (UK GDPR).

What data we process

We process personal and company data that is publicly available from official sources such as the UK Companies House register. This includes information on:

• Company officers, persons with significant control (PSCs), and beneficial owners
• Appointments, control relationships
• Company registration details and filing history

Our platform processes and displays personal data that is lawfully published by official sources such as Companies House and the Charity Commission. We use this data strictly in line with its original purpose: to support corporate transparency and public oversight. We do not use this data for unrelated purposes such as advertising, profiling, or contacting individuals. We aim to reflect the public record faithfully and respectfully. We regularly update our records to reflect changes at the source.

Source of data

We obtain personal and company data from publicly available third-party providers, including official registers such as Companies House and the Charity Commission for England and Wales. These sources provide legally published data on company officers, persons with significant control (PSCs), beneficial owners, and registered charity trustees.

Purpose of processing

We process this data to:

• Provide users with search tools and linked insights across companies, officers, PSCs, and beneficial owners
• Support financial transparency, corporate due diligence, and fraud risk analysis
• Enable users to identify hidden ownership structures or cross-company control

Lawful basis

Our lawful basis under UK GDPR is legitimate interests. These interests include:

• Improving access to public control and company ownership information
• Supporting due diligence, compliance, and transparency
• Facilitating responsible data use by commercial and public users

Who we share data with

We offer free public access to our browsing tools, and provide paid API access to users who require automated data use.

Data retention

We retain information as long as it is relevant and publicly available through official registries. We regularly update our data to reflect the latest records.

Website visitors

We do not collect any personal information from visitors to our website (Astro-consortio) unless they choose to contact us directly. We do not use cookies, trackers, analytics, or other technologies that identify individual users. If you choose to contact us (e.g. by email), we will use the information you provide solely to respond to your enquiry.

Your rights

If your personal data appears as a officer, PSC, or beneficial owner, you have the right to:

• Access your data
• Request correction
• Object to processing
• Request erasure (where applicable)

To protect your personal data and prevent unauthorised access or changes, we require anyone exercising their rights — including requests for access, correction, objection to processing, or erasure — to verify their identity. This helps us ensure that we only respond to the legitimate data subject and avoid accidental disclosure or alteration of another person’s information. We assess all requests under GDPR and may decline erasure if we have overriding public interest or legal grounds to retain the data.

Changes to the privacy policy

We may update this Privacy Policy periodically. When that happens, we will post the revised version on this page, unless a different form of notice is required by applicable law.

Contact us

Email: contact@polylogarithmic.com

You can also lodge a complaint with the UK Information Commissioner’s Office (ICO).