Privacy Policy
Last updated: 19 August 2026
ZeroHeadcount is a trading name of Barton Technology Ltd (company number 03930086), registered at Suite 652, 124 City Road, London, EC1V 2NX. We are the data controller for the personal data described on this page.
What we collect and why
When you get in touch through our contact form, we collect your name, email address, company name (if given) and whatever you tell us in your message. We use this to reply to your enquiry and to understand whether ZeroHeadcount is a good fit for your business — our lawful basis is our legitimate interest in responding to enquiries, and taking steps at your request before entering into a contract.
We also automatically capture technical attribution data — the page you came from, the page you contacted us on, and any campaign parameters in the URL (UTM tags) — so we know which marketing is actually working. This is stored alongside your contact details.
Third parties
Your data may be processed by the following third parties, all under appropriate contracts:
- BartMail (Barton Technology's own contact and email platform) — stores your contact record.
- Microsoft 365 — enquiry notifications are sent to our mailbox this way.
- Vercel — hosts this website.
- Sentry — error monitoring, to catch and fix problems with the site.
- Google Analytics 4 and Rybbit — analytics, only if you consent (see below).
How long we keep it
We keep enquiry and contact records for as long as is reasonably necessary to respond to you and maintain a record of the conversation — typically no longer than 24 months from your last contact with us, unless you ask us to delete it sooner or the law requires us to keep it longer.
Your rights under UK GDPR
You have the right to access the personal data we hold about you, ask us to correct it, ask us to delete it, restrict or object to our processing of it, and receive a portable copy of it. ZeroHeadcount is a brochure site with no user accounts — our only store of personal data is BartMail (see above) — so the way to exercise any of these rights is to email us at the address below. We will respond within one month.
Contact
Questions about this policy or your data: hello@zeroheadcount.io. You can also complain to the Information Commissioner's Office at ico.org.uk.
Cookies, analytics and advertising
We use cookies and similar browser storage. Strictly necessary cookies — the ones that make the site work, keep it secure and remember your cookie choice — are always active. Everything else is optional and nothing optional runs until you choose.
Analytics cookies tell us how the site is used so we can improve it. We currently use Google Analytics 4 and Rybbit for this.
Advertising and remarketing cookies let us measure whether our ads work and show you ZeroHeadcount ads on other websites and apps after you have visited us — this is commonly called remarketing or retargeting. We currently use Google Ads and Meta (Facebook and Instagram) for this, and similar advertising platforms we may use, listed here as they are adopted.
Where you consent to advertising cookies, information about your visit — such as pages viewed, an advertising identifier and your approximate location — may be shared with those advertising platforms so they can build audiences, match you to an ad campaign, and measure the results. Some of these platforms are outside the UK, in which case appropriate transfer safeguards apply. They act as independent controllers or joint controllers for that advertising activity, so their own privacy policies also apply.
Our lawful basis for both analytics and advertising cookies is your consent. We ask before anything optional is set, we treat analytics and advertising as separate choices, and we do not treat consent to one as consent to the other. We also send Google Consent Mode signals so that where you refuse, advertising identifiers are stripped from any request that is still made.
You can change or withdraw your choice at any time — it is as easy to withdraw as it was to give: . Withdrawing stops further optional cookies being set and tells the platforms above to stop using your data; it does not undo processing that already happened lawfully. You can also clear cookies and browser storage through your browser settings.
Questions about any of this, or to exercise your UK GDPR rights, contact us at hello@zeroheadcount.io. You can also complain to the Information Commissioner's Office at ico.org.uk.