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Privacy Policy

Who we are and how to contact us

We are Mantis, an ad tech company proudly part of ReachPLC. Our address is: One Canada Square, Canary Wharf, London, E14 5AP.

For all queries, including but not limited to data usage, data privacy, and any concerns or questions you might have, please contact us via email at:

We are committed to addressing your concerns promptly and thoroughly, ensuring that your experience with Mantis is both secure and transparent.

About this Privacy Notice

This Privacy Notice describes the kinds of information we hold, what we do with it, and why.

Mantis offers a range of products, with plans to develop more in the future. Our services focus on brand safety and contextual analysis by gathering non-personal data, such as content from across ReachPLC and our publisher partners. This data helps us create segments and inform content recommendations.

For content processing, we share some publisher content with AI partners, specifically IBM Watson and ChatGPT. We prioritise privacy by limiting the use of this content in AI model training, focusing instead on fine-tuning and adjusting our own Mantis models.

Additionally, Mantis facilitates ad sales through SSP partners, requiring the collection of some personal data like IP addresses and broad geolocation data for ad targeting and frequency capping.

Privacy Notice Updates

We may update this Privacy Notice from time-to-time by posting a new version on our websites. You should check this page occasionally to ensure you are happy with any changes. Where changes are material, we may also notify you of them by email.

For our Clients

1. The data we collect and what we do with it

We collect the information that is necessary to conduct our business, to provide the services you have requested and to keep you informed. We will collect and process your personal data in accordance with this privacy notice and any other agreement that we may have with your business.

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

○ Identity Data: including first name, maiden name, last name, username or similar identifier, title, date of birth and gender.

○ Contact Data: including billing address, delivery address, email address, and telephone numbers.

○ Financial Data: including bank account and payment card details (we only use this data for payment processing purposes).

○ Transaction Data: including details about payments to and from you and other details of products and services you have purchased from us.

○ Technical Data: including IP address, your login data, traffic data, browser type and version, time zone setting and location, browser plug-in types and versions, operating system and platform and other communication data which gives us about how you accessed our website.

○ Profile Data: including your username and password, purchases or orders made by you.

○ Usage Data: including information about how you use our website, products and services.

○ Marketing and Communications Data: including your preferences in receiving marketing from us (and our third parties) and your communication preferences.

We do not hold any "special category" data about you (such as data about your race or ethnicity, religious or philosophical beliefs, sex life, sexual orientation, political opinions, trade union memberships, data about your health and genetic and biometric data).

We collect personal information related to you, your employees, and your representatives when you decide to interact with us or enter into a contract with us. We also look at how you interact with our websites so that we can offer you the best possible experience.

We use your data to:

○ To verify your identify and entitlements to our products and services when you contact us or access our services.

○ To protect you from fraud prevention and detection.

○ To supply services to you and manage your subscriptions.

○ To send statements and invoices to you, and collect payments from you.

○ To provide commercial quotes to you.

○ For statistical analysis (e.g. on the use of our websites).

○ To operate and improve our websites and services.

○ To supply services to you and manage your subscriptions.

○ To notify you of any changes to our websites or our services and products which may affect you.

○ To provide you with technical and customer support.

○ To enforce our legal rights or comply with legal requirements.

2. Our Legal Basis

We will only use your personal data when the law allows us to. Most commonly, we will use your personal data in the following circumstances:

● Where we need to perform the contract we are about to enter into or have entered into with you.

● Where we need to comply with a legal or regulatory obligation.

● Where it is in our legitimate interests, including our commercial interests in operating the Mantis customer facing platforms, and providing you with access to our products.

● We make sure that we consider and balance any potential negative impact on you and your rights before we process your personal data.

Generative AI Use

We may share data (non personal) with Generative tools like OpenAI and IBM Watson on a 30 day or zero data retention basis for Business intelligence purposes, to identify patterns, spot inconsistencies, predict trends, and deliver insights that lead to a better understanding of our business across all functions.

1. The data we collect and what we do with it

Mantis collects published content that is in the public domain, sourced not only from our publisher partners but also beyond. This collection serves the purpose of enhancing brand safety, enabling contextual targeting, and facilitating content recommendation. Additionally, in specific, limited scenarios, we collect IP addresses and geolocation data from our publisher partners. These personal data points are gathered to improve ad targeting and to ensure an efficient frequency capping of advertisements.

2. Our legal basis

Our processing of personal data is grounded in the consent mechanism within the Transparency and Consent Framework (TCF). We rely on our publisher partners to collect consent on our behalf through their Consent Management Platforms (CMPs) on their pages. This consent allows us to use the gathered data for ad targeting, enabling us to customise ad delivery locations, frequencies, and the systems responsible for their delivery.The published content we collect, being in the public domain, is utilised for providing brand safety ratings, contextual targeting, and recommended content suggestions. This information also aids in updating our brand safety and contextual segmentation. It is important to note that while this data is essential for curating content and marketplaces.

3. How long we keep it for

We retain information on published content indefinitely, as it's in the public domain. This ongoing retention supports our systems in updating brand safety categorizations and in identifying traffic and topic trends for our publisher and advertiser partners. For personal data used in ad delivery, such as IP addresses and geolocation, we do not store this information ourselves. Instead, it is maintained by our SSP partners to facilitate timely and efficient ad delivery.

The retention period for this data by SSP partners, such as AdEx, is subject to change and may vary as we add new SSP partners. Further details on these retention periods can be accessed via those providers' privacy notices.

Reach will retain your personal data in accordance with the law and relevant regulations and will store the data for as long as is necessary to fulfil the purpose for which it was collected. The period for which we keep your personal data will be determined by the purpose for which we are using the data, and our legal and regulatory obligations.

4. Who we share it with and why

Our data sharing practices are focused on enhancing our services and ensuring secure, responsible ad delivery:

AI Partners: We share content from our publisher partners and other sources with IBM Watson and ChatGPT to leverage their capabilities in improving our offerings.

Amazon Web Services (AWS): All our data, including B2B client login information, is securely stored within AWS Cloud services. This ensures the secure delivery of services to our clients.

SSP Partners: Data necessary for ad delivery, collected by our SSP partners, is stored within their systems. This arrangement ensures ads are delivered safely, securely, and conscientiously.

CRM System: Client contact information is stored within our Customer Relationship Management (CRM) system. This enables us to effectively sell products and maintain communication with both potential and existing customers.

This structured approach allows us to maintain the integrity of the data we handle while supporting our operational and service delivery objectives.

5. International transfers of your personal data

From time to time we may transfer your personal data to service providers based outside of the UK and EEA for the purposes described in this Privacy Notice.

Data stored by Mantis, specifically content data within Amazon Web Service (AWS) Cloud services, is located in data centres in Ireland. The transfer and usage of data outside the country of collection adhere to stringent legal frameworks and processes, ensuring compliance and safeguarding user data in line with applicable laws, such as GDPR.

The data collected by our SSP partners for ad delivery purposes is managed within Europe, addressing GDPR concerns and ensuring that data sovereignty and privacy regulations are respected.

How we keep your data secure

We are committed to protecting the personal data we hold and keep your information secure by taking appropriate technical and organisational measures, including for example encryption techniques and access control, to protect personal and sensitive data against its unauthorised or unlawful processing and against its accidental loss, destruction or damage.

Where we use third-party service providers to store data, we have appropriate agreements in place to ensure that your personal data is protected. In addition, we limit access to your personal information to those employees, agents, contractors and other third parties who have a business need to know. We also require any third parties to whom we may transfer personal data to have appropriate security measures in place. They will only process your personal information on our instructions and they are subject to a duty of confidentiality.

How we ensure we protect children's privacy

Our Services are directed to working professionals. Our Services are not intended for children, and we do not knowingly collect personal information from children.

Exercise your rights

You have certain rights under data protection laws which include the right to:

● Access your personal information (via what is commonly known as a "data subject access request").

● Require us to correct any mistakes in your information which we hold.

● Require the erasure of personal information concerning you in certain situations by submitting a Data Subject Request.

● Receive the personal information concerning you which you have provided to us, in a structured, commonly used and machine-readable format and have the right to transmit those data to a third party in certain situations.

● Object at any time to processing of personal information concerning you for direct marketing.

● Object to decisions being taken by automated means (including profiling) which produce legal effects concerning you or similarly significantly affect you.

● Object in certain other situations to our continued processing of your personal information.

● Otherwise restrict our processing of your personal information in certain circumstances.

You can exercise your rights by contacting our group Data Protection Officer’s team on It is helpful to be as specific as possible about what you want us to do or what information you are looking for, because it enables us to respond to you more quickly.

Depending on your request, we may ask you to prove your identity to us first, in order to make sure that someone isn’t impersonating you.Add

How to complain

If you have a complaint or disagree with a decision we have made, we ask that you discuss it with us first by contacting the group Data Protection Officer at or via the address given at the top of this Privacy Notice.

You also have the right to complain to your data protection supervisory authority. In the UK this is the Information Commissioner’s Office:

The ICO’s contact information is:

Address: Information Commissioner’s Office, Wycliffe House, Wilmslow, Cheshire, SK95AF


Phone Number: 0303 123 1113