Last updated: 28 June 2026 · Version 1.0
STEMHQ is operated by STEMHQ Ltd, a company registered in England and Wales. For the purposes of UK GDPR, STEMHQ Ltd is the data controller of personal data collected through our platform and website. Contact us regarding this policy at hello@stemhq.co.uk.
Your full name, email address, account password (stored as a one-way bcrypt hash), account type, and subscription tier. Collected at registration.
Property addresses, postcodes, rental amounts, tenancy start dates, and other property information you enter. This is your operational data.
Names, contact details, National Insurance numbers, payment records, arrears history, and case notes for tenants you manage. You are the data controller of your tenants’ personal data; STEMHQ processes it as your data processor under the Data Processing Agreement incorporated into our Terms. You are responsible for having a lawful basis to process it.
Gas Safety certificate dates, EPC ratings, EICR records, deposit protection details, and documents you upload (tenancy agreements, ID copies, legal notices).
Subscription status, billing interval, and Stripe customer reference. We do not store card numbers; payment processing is handled by Stripe Payments Europe Ltd under their own privacy policy.
Pages visited, features used, browser type, IP address, and session identifiers. Used to maintain security, diagnose errors, and improve the product.
If you contact us by email or our contact form, we retain those communications to respond to your enquiry.
We rely on the following lawful bases under UK GDPR Article 6:
We do not sell your personal data, use it for advertising, or profile you for automated decision-making that produces legal or significant effects.
We share data only with trusted processors necessary to operate the platform, each bound by data processing agreements under equivalent data protection standards:
| Processor | Purpose | Location |
|---|---|---|
| Stripe Payments Europe Ltd | Subscription billing and payment processing | EU / UK |
| Resend Inc. | Transactional email delivery | USA (SCCs) |
| Infrastructure provider | Cloud hosting and database storage | EU |
We may disclose personal data to law enforcement or regulatory authorities where required by law.
Where personal data is transferred outside the UK or EU (for example to Resend Inc. in the USA), we rely on Standard Contractual Clauses approved by the UK ICO or European Commission, supplemented by transfer impact assessments where appropriate.
In the event of a data breach posing a risk to your rights and freedoms, we will notify you and the ICO within 72 hours of becoming aware, as required by UK GDPR Article 33.
To exercise any right, contact hello@stemhq.co.uk. We respond within one calendar month.
You may also lodge a complaint with the Information Commissioner’s Office if you believe we have not handled your data lawfully.
Session authentication token, CSRF token. Required for the platform to function. No consent required.
Dark-mode preference, sidebar state, display settings, stored in localStorage and not transmitted to our servers.
Aggregate usage data. No advertising cookies are used, and no data is sold or shared with advertising networks.
Manage cookie preferences at any time via Cookie Settings in your account menu. See our Cookie Policy for detail.
STEMHQ is a professional business tool intended for adults. We do not knowingly collect personal data from anyone under 18. If you believe we have, contact hello@stemhq.co.uk immediately.
We may update this policy to reflect changes in law, our practices, or the platform. Material changes will be notified by email at least 14 days before they take effect. Continued use after the effective date constitutes acceptance. The date above always reflects the most recent revision.
For any privacy query, request, or complaint, contact hello@stemhq.co.uk. If you are not satisfied with our response, you may complain to the ICO at ico.org.uk/make-a-complaint or by calling 0303 123 1113.