Last updated: 3 March 2026
1. Introduction
This Privacy Policy explains how EfficientEther Ltd collects, uses, shares, and protects personal data when you use our websites and related online services.
Covered properties include www.efficientether.co.uk, etherassist.ai, docs.etherassist.ai, etherinsights.ai, status.efficientether.co.uk, and legal.efficientether.co.uk.
2. Controller Details
Data controller: EfficientEther Ltd (Company Number 14951957), registered in England and Wales.
Registered office: 86-90 Paul Street, London, England, EC2A 4NE.
Privacy contact: info@efficientether.co.uk.
3. Legal Framework and Scope
We process personal data in line with applicable laws, including UK GDPR, the Data Protection Act 2018, and the Privacy and Electronic Communications Regulations (PECR). Where relevant, we also apply EU GDPR and applicable US state privacy laws.
4. Personal Data We Collect
- Data you provide: name, email address, organization, job role, enquiry content, and support communications.
- Technical and usage data: IP address, browser and device data, timestamps, page interactions, and diagnostics.
- Marketing preference data: consent settings, subscription status, and communication preferences.
- Data from third parties: limited business contact information from referral partners, event co-hosts, or public business sources.
We do not intentionally collect special category data via these websites. Please do not submit special category data in web forms.
5. Purposes and Lawful Bases
| Purpose | Example Activities | Lawful Basis |
|---|---|---|
| Operate and secure websites | Hosting, uptime, fraud prevention, abuse monitoring | Legitimate interests; legal obligation where required |
| Respond to enquiries and requests | Contact forms, support requests, pre-contract communications | Contract (pre-contract steps); legitimate interests |
| Analytics and service improvement | Traffic and engagement analysis, usability testing | Consent for non-essential tracking where required; legitimate interests for strictly necessary measurement |
| Marketing communications | Newsletter or campaign updates | Consent, or legitimate interests where law permits |
| Compliance and record-keeping | Legal claims, audit trail, regulatory requests | Legal obligation; legitimate interests |
6. Sharing and Recipients
We may share personal data with:
- Infrastructure and software providers acting on our instructions (for hosting, analytics, support, communications, and operations).
- Professional advisers (legal, accounting, compliance, and audit).
- Regulators, authorities, courts, or law-enforcement bodies where legally required.
- Potential acquirers or investors where needed for a corporate transaction and subject to confidentiality controls.
We do not sell personal data. Our current list of sub-processors is published at legal.efficientether.co.uk/sub-processors.html and is updated when sub-processors are added or removed. For specific queries contact info@efficientether.co.uk.
7. International Transfers
Where personal data is transferred outside the UK or EEA, we apply appropriate safeguards, such as adequacy regulations, the UK International Data Transfer Addendum, EU Standard Contractual Clauses, or other legally approved transfer mechanisms.
You can request information about relevant safeguards via info@efficientether.co.uk.
8. Retention Periods
We keep personal data for no longer than necessary for the purpose collected.
| Data Category | Typical Retention | Notes |
|---|---|---|
| Contact and enquiry records | Up to 24 months after last meaningful contact | May be retained longer where needed for legal claims or compliance. |
| Support communications | Up to 36 months after closure | Extended retention may apply for security or dispute handling. |
| Cookie and analytics identifiers | By cookie lifespan (see Cookie Policy) or until consent withdrawal | Some cookies expire in-session; others persist for defined periods. |
| Suppression and opt-out records | As long as needed to honour your request | Maintained to prevent future unwanted contact. |
9. UK and EEA Data Protection Rights
Subject to applicable law, you may have rights to:
- Access personal data we hold about you.
- Correct inaccurate or incomplete data.
- Erase personal data in certain circumstances.
- Restrict processing in certain circumstances.
- Object to processing based on legitimate interests, including direct marketing.
- Receive data portability for data processed by automated means on contract or consent grounds.
- Withdraw consent at any time for consent-based processing.
10. Exercising Rights and Response Times
To exercise rights, email info@efficientether.co.uk. We may request information to verify your identity.
We generally respond within one month. Where requests are complex or numerous, we may extend by up to two further months where permitted by law.
Provision of personal data in web forms is generally voluntary, but if mandatory fields are not provided we may be unable to respond or provide requested services.
11. EEA Representation and Supervisory Authorities
EfficientEther Ltd is established in the UK. Where EU GDPR Article 27 requires an EEA representative for specific activities, representative details will be published in this section.
You may lodge a complaint with the UK Information Commissioner's Office (ICO). If you are in the EEA, you may also complain to your local supervisory authority.
12. US State Privacy Notice (Where Applicable)
Residents of US states with applicable privacy laws may have rights to know, access, correct, delete, and obtain a portable copy of personal information, and to opt out of certain processing (such as sale, sharing, or targeted advertising) where applicable.
We do not sell personal data. If our use of tracking technologies is deemed "sharing" or "targeted advertising" under state law, we will provide required opt-out controls on the relevant site.
You can submit rights requests via info@efficientether.co.uk. You may appeal a denied request by replying to our response email with the subject line "Privacy Appeal".
13. Automated Decision-Making and Profiling
We do not carry out solely automated decision-making that produces legal or similarly significant effects about individuals through these websites.
14. Children
Our websites are not directed to children under 13, and we do not knowingly collect personal data from children through public web forms. If you believe a child has provided personal data, contact us so we can remove it.
15. Cookies and Tracking
For details on cookies, similar technologies, and site-by-site tracking implementation, see our Cookie Policy and Tracking and Analytics Disclosure.
16. Security
We implement appropriate technical and organisational safeguards to protect personal data. No internet transmission or storage method is completely secure, so we cannot guarantee absolute security.
17. Changes to This Policy
We may update this policy from time to time. Material updates are effective when published on legal.efficientether.co.uk.
18. Contact and Complaints
Privacy contact: info@efficientether.co.uk.
ICO complaints can be made at ico.org.uk/make-a-complaint.