Privacy Policy Website

Privacy notice website

This Privacy Notice explains in detail what personal data Blis collects and processes about you, how we use that personal data, who we may share it with, how we protect your personal data and the choices and the rights you have regarding how we collect and process your personal data. For simplicity we refer to personal data consistently throughout this document, however, the words personal information may also be substituted.

This Privacy Notice covers the personal data we collect and process about you from your use of our website This Privacy Notice does not describe the collection and use of personal data by the Blis advertising services business, which can instead be found here.

We hope the following sections will answer any questions you have but if not, please do get in touch with us by emailing or visit our privacy centre for more information.

We are Blis, a digital advertising company. We provide services to companies including media agencies and their clients – global advertisers – who want to place advertisements or content, [or purchase data] by using our technologies. Our services include, for instance, presenting you with personalised ads, verifying location data, measuring footfall attribution, facilitating advertising based on audience segments and inferred interests, cross-device retargeting and other attribution and location analytics.

You can find out more about our business in the privacy centre. This video simplifies the process of real-time bidding within which our technologies are utilised.

Our parent company is Blis Global Ltd, a company registered in England and Wales with company number 06455773 and with a registered office at 85 Great Portland Street, London W1W 7LT, UK.

The companies which form the Blis Group, and their locations, are listed in our privacy centre as Blis official trading companies.

Blis Global Ltd, the parent company, is the controller of any personal data held about you by the Blis Group. 


Blis is an active member of the industry associations that govern policies around user privacy in the context of digital advertising, including at the time this Privacy Notice was last updated: 

  • IAB (UK, Netherlands, US and Australia)
  • IMAA (Australia and India)  

Through our membership of the IAB, Blis participates in and complies with the policies and technical specifications of the IAB Europe Transparency and Consent Framework and IAB CCPA Framework. We also have an IAB UK Gold Standard certification.

Personal data processed under this notice is received by us as a result of your visiting our website

We may collect, use, store and transfer different kinds of personal data about you, which we have grouped together as follows:

Type of Personal Data

Type of Personal Information (CCPA)

Identity Data includes first name, last name, username or similar identifier

Identifier, Professional Information.

Contact Data includes email address and telephone numbers.

Contact Data includes email address and telephone numbers.

Technical Data includes internet protocol (IP) address, browser type and version, time zone setting and location, browser plug-in types and versions, operating system and platform and other technology on the devices you use to access this website

Internet Information

Usage Data includes information about how you use our website, products and services.

Internet Information

Marketing and Communications Data includes your interests and preferences in receiving marketing from us.

Identifier, Professional Information

We also collect, use and share aggregated data such as statistical or demographic data for any purpose. Aggregated data could be derived from your personal data, but is not considered personal data in law as this data will not directly or indirectly reveal your identity. For example, we may aggregate your usage data to calculate the percentage of users accessing a specific website feature. However, if we combine or connect aggregated data with your personal data so that it can directly or indirectly identify you, we treat the combined data as personal data, which will be used in accordance with this privacy notice.


We do not knowingly collect, store, share or use the personal data of children under 16 years. Our platform and services are intended for a general audience and are not directed at minors. Advertisers may not use the Blis services to collect data from, target or re-target users under the age of 16. In the USA, as directed by COPPA regulations this is lowered to the age of 13. 

If you are under the age of 16 years and you believe that we process personal data about you, please ask your parent(s) or guardian(s) to notify us and we will delete your personal data.

We use cookies, mobile identifiers and data derived from tags, pixels, beacons, SDKs and other tracking technology to associate your usage data with you – or more accurately, with your device. 

When you accessed our website, you would have been presented with consent management software that asked for your consent to allow us to place cookies (and other tracking technology) in your browser and on your device. 

Cookies are small text files that can be used by websites to make a site visitor’s experience more efficient. We use them to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about the use of our site with our social media and analytics partners who may combine it with other information that you’ve provided to them or they’ve collected from your use of their services. For further information please read our cookie declaration

If you do not want websites to place cookies on your computer or mobile device at all, you can adapt your browser settings. If you want to understand what these terms mean, want to know more about tracking technology or to understand how you can disable tracking technology, please visit our privacy centre or contact us

We also collect personal data about you when you give us your contact details, for example if you ask us to send you a white paper or enter a survey.

We will collect, use, store and transfer store your personal data:


  • For marketing purposes, as set out in Marketing below
  • To respond to queries you may submit through the website e.g., when you book a demo, when you sign up for an event
  • To carry out data analytics so that we can better understand your interests and preferences, and so that we can improve our products and services

If you fail to provide data when requested, we may not be able to perform our services (or may perform them, but less effectively).



We may use your personal data to provide you with information about our products and services, and also products and services from our partners and third parties.


We may need your consent to communicate by certain channels, and we will always make sure we get this where we need to.


You have the right to opt out of receiving marketing communications from us at any time (see ‘Your data protection rights’ below).

Under UK and EU GDPR (General Data Protection Regulation), our legal basis for collecting and using your personal data will depend on the type of personal data and how it was collected. 

If we asked you for consent to use your personal data, then the legal grounds on which we are using your personal data is consent. You can withdraw your consent at any time – see “my data protection rights”

Other uses of your personal data will have our legitimate interests as their lawful basis. These uses include:

  • Marketing as set out in Marketing. You have the right to opt out of receiving marketing communications at any time.
  • The carrying out of data analytics so that we can better understand your interests and preferences, and so that we can improve our products and services.
  • Any type of fraud prevention that we may carry out.
  • Event planning including future event development and following up with attendees.

If we process your personal data based on a legitimate interest, we will ensure that this processing is not overridden by your rights, such as your right to opt-out, and that we have carried out a balancing test. 

Finally, we may use your personal data to fulfil our contractual obligations to you, where we have a legal obligation, to protect your vital interests or those of another person.

If you wish to learn more about the legal basis on which we collect and use your personal data please contact us at

Blis is a global business and any information that we collect or that you provide to us may be shared and processed by any Blis company or reseller. You can find out more about the Blis companies and locations here. 

We may also share your personal data with third parties so that they can help us to provide our services. These third parties include:

  • Social media sites including LinkedIn
  • Website feature and functionality providers Video players including YouTube and Vimeo
  • Customer relationship platforms including Zoho or Hubspot
  • Website analytics and hosting including Google Analytics and Google Cloud Platform
  • Consent management platform, which is Cookiebot

For further information on which of these platforms also may place cookies on your device, please see our Cookie Declaration.

Where legally required we may your share personal data with:

  • Our professional advisers, such as lawyers and accountants
  • Government, police forces and/or regulatory authorities
  • As part of actual or potential business sale of Blis or its assets, to prevent suspected fraud, to respond to claims asserted against us or to comply with legal processes such as court order.

Blis is a global company. We may transfer personal data to countries other than the country in which it was collected. Where the destination country does not provide an adequate level of protection for personal data, we will only do so with an appropriate transfer mechanism and apply appropriate safeguards.  

If we receive personal data and transfer it on to a third party, we will take appropriate measures to ensure an adequate level of data protection in accordance with this Privacy Notice and data protection regulations. 

For more information, please contact

As described in this Privacy Notice, we process your personal data for a number of purposes, and the length of time that we retain your personal data depends on the processing purpose, the category of personal data and certain external factors. We will retain contact details for as long as you are a customer of ours but we regularly update our database to remove and amend contact details.

Blis cookies expire within 13 months and the expiration date of third-party cookies is determined by the third parties.

We use a range of measures to keep your personal data safe and secure. This includes protection against unauthorised access to or unauthorised alteration, disclosure or destruction of data we collect and store. We require our staff and any third parties who carry out any work for us to comply with appropriate security standards including obligations to protect data and apply appropriate measures for the use and transfer of data. 

Data collected and used by our services is held securely by Google Cloud. Data protection is a priority for Google and they are certified against recognised international standards such as ISO/IEC 27001, ISO/IEC 27018 and ISO/IEC 27017. You can read more on Google’s website.


If you have any questions about your data protection rights, please contact us at or for other methods please see “How to contact us”.

UK and EU GDPR (General Data Protection Regulation)

If you are located in the UK or EEA, you may have certain rights under UK and European privacy law, principally the General Data Protection Regulation (GDPR). This section of the Privacy Notice is intended solely for such consumers, i.e., “data subjects”. You have a number of rights in relation to the personal data that we hold about you including:

  • The right to access personal data we hold about you and to obtain information about how we process it
  • The right to request that we rectify (correct) your personal data if it is inaccurate or incomplete
  • The right to ask us to delete your personal data. We may continue to keep your personal data if we are entitled or required to
  • The right to object to, and to request that we restrict our processing of your personal data in some circumstances
  • The right to receive certain personal data you’ve provided to us in an electronic format and/or request that we send it to a third party
  • The right to withdraw your consent to us processing your personal data
  • The right not to receive marketing communications from Blis

If you wish to exercise any of the above rights, please contact us at

If we are unable to action your request, we will explain the reasons for our refusal.


California privacy rights

The California Consumer Privacy Act of 2018 (“CCPA”) provides certain rights to residents of California. This section of the Privacy Notice applies if you are a resident of California and your “personal information” (referred to elsewhere in this document as “personal data” is collected or disclosed by us. This notice supplements the information already provided in this Privacy Notice. 


As some of the data we process may be considered “personal information” under CCPA, we are required to make certain disclosures to California consumers. Please see this key to guide you through the Privacy Policy: 


Blis Privacy Notice Section

Categories of Personal Information collected in the previous 12 months

What data do we collect and use

Categories of sources from which we collected Personal Information

How we collect your dataWhat data do we collect and use

The business or commercial purposes for collecting or selling Personal Information

How we collect your data

Categories of Personal Information shared or disclosed to third parties in the preceding 12 months and the categories of third parties with whom the information was disclosed or sold

Who we share or disclose your personal data to

California consumers have the following rights:

  • To request that we disclose what information we collect, use, disclose or sell about you (twice in a 12-month period)
  • To access the specific pieces of information we hold about you (twice in a 12-month period)
  • To request the deletion of any of your personal information we collect or maintain, subject to certain exceptions (twice in a 12-month period)
  • To non-discrimination – we will not deny, charge different prices for or provide a different level of quality of goods or services if you choose to exercise these rights
  • To opt out of the sale of your personal information

Do not sell my personal information. 

Under CCPA, California consumers have the right to opt-out of the sale of their personal information. CCPA broadly defines sale such that it may include, for example, allowing third parties to receive and use certain information, such as cookies, mobile advertising IDs, IP address and/or browsing behaviour, to deliver tailored or personalised advertising. When you opt out of the sale of your personal information, you will still receive ads, but we will not be able to use this data to personalise them to you and therefore they may be less useful.


How to exercise your rights under CCPA

California residents may exercise their California access or deletion rights by calling our toll-free number 1-866-I-OPT-OUT (1-866-467-8688) and enter code 1191# or by emailing us at

For security purposes, we will verify your identity when you request to exercise your California privacy rights. Once we have verified your identity (and your agent, as applicable), we will respond to your request as appropriate and except where not permitted under applicable law or otherwise exempted by the CCPA.

If we are unable to complete your requests fully for any of the reasons above, we will provide you additional information about the reasons that we could not comply with your request.

Authorised agents

You may also designate an agent to make requests to exercise your rights under CCPA as described above. We will take steps both to verify the identity of the person seeking to exercise their rights, and to verify that your agent has been authorised to make a request on your behalf through providing us with a signed written authorisation or a copy of a power of attorney.

We use your personal data to present you with ads which (we hope) are relevant and interesting to you. We think that this is a win-win for consumers, advertisers and publishers because advertising revenue is one of the main reasons that the internet is mainly free.


If you don’t want to receive personalised or interest-based ads from us then you can opt out, but please bear in mind that you may still receive ads from us. The only difference is that they won’t be personalised and therefore – we think – they will be less interesting and relevant to you.


How to opt-out

There are a number of different ways for you to opt-out of personalised or interest-based advertising:


  1. In-ad opt-out

You may opt-out of Blis-delivered interest-based advertisements within a mobile website or mobile App by clicking on the enhanced notice/OBA icon included within that advertisement, and then selecting “opt-out” within the page to which you are redirected.


        2. Using the TRUSTe app


You may download the TRUSTe mobile app on your iOS or Android device in order to exercise choice regarding the use of mobile app-collected data for interest-based advertising by us and other companies that participate in that choice tool. Links to those applications are below:

TRUSTe mobile appMobile applications opt-out iOS

TRUSTe mobile app Android


        3. In your mobile device settings


To opt-out of the collection and use of data for interest-based advertising on your mobile device, you can modify the settings on your mobile device. For example:


For Apple iOS devices: 


On iOS version 14 and later only:


You may withdraw your consent by disabling the “Allow Apps to Request to Track” setting in your iOS settings (precise directions may be different on different iOS versions).


On iOS version 13 and earlier only:


Go to Settings, select Privacy, select Advertising and enable the “Limit Ad Tracking” setting.


To reset your Advertising Identifier on iOS, open “Settings”, tap “Privacy”, tap “Advertising” and tap “Reset Advertising Identifier”. 


For Android devices: 


Open the Settings app, then Google Settings app, select Ads then “Reset advertising ID” and choose “Opt-out of Ads Personalisation”. 


Note: The actual opt-out instructions for each device may differ slightly depending on operating system and updates. Also, after choosing to opt-out via any of the mechanisms described, if you use a different device or a different browser, or if you delete browser cookies, you may need to repeat the opt-out steps for that particular device or browser. In addition, if you block cookies on your browser or if third-party cookies are blocked by default, some of the opt-out tools above may not function.


           4. Other methods


You may also opt-out of the collection of data across unaffiliated sites over time for interest-based advertising and other purposes from companies participating in the Digital Advertising Alliance Consumer Choice Page at and from members of the Network Advertising Initiative via 


If you have any questions about your internet choices, please contact us at or for other methods please see “How to contact us”.

If you have any questions about this Privacy Notice or how we handle your personal data, please contact us:

By letter: Blis Privacy Team, Blis Global Ltd, 85 Great Portland Street, London W1W 7LT, UK.

By email: 

You can also contact our DPO (data protection officer) directly at

You have the right to lodge any complaints you have regarding our processing of your personal data with a regulatory authority such as the Information Commissioner’s Office (the UK data protection regulator) or you can contact your local data protection regulator. 

You can contact the ICO as follows:

Phone: 0303 123 1113

Post: Information Commissioner’s Office, Wycliffe House, Water Lane, Wilmslow SK9 5AF


Updates to this policy

This Privacy Policy may be updated from time to time. We will post a prominent notice on our website notifying users when it is updated. 

Effective date of the recent update of this Privacy Policy:

25 March 2021

Blis’s previous Privacy Policies can be found here:

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