Your privacy is important to us. This policy outlines our use of Personal Data and explains the use of cookies as you browse this website under the General Data Protection Regulation and the Privacy and Electronic Communications (EC Directive) Regulations 2003. 'We' and 'our' mean MarkStream Limited (registered in England number 03987984) and Demyst Consulting Limited (registered in England number 04115352).

Privacy Information

We do not electronically harvest or sell Personal Data to third parties. We collect Personal Data from public sources, where it is given to us by the individuals themselves with informed consent, and we may purchase Personal Data from reputable third-party sources. If you decide to contact us by telephone, email, via a web form or by a subscription, we will store and retain the information you choose to provide to us, including Personal Data. We will not share Personal Data with any third parties without your clear consent (which would most likely be an academic institution as part of a specific research project you wish to be involved in).

Generally, the classes of Personal Data we hold about you will be your contact details, your company’s detail and your role. We may also hold other unspecified information about you if you have chosen to tell us about it or the information is publicly available, such as your interests, biographical details and business associations.

Our use of your Personal Data will always have a lawful basis. Generally, that will be because (i) it is necessary for us to comply with our contractual obligations to you or our legal obligations; (ii) you have consented to our use of your Personal Data; or (iii) it is within our legitimate interests.


Specifically, we may use your Personal Data for any of the following purposes:

  • Responding to your enquiries and developing and maintaining a commercial, academic or philanthropic relationship with you;

  • Providing and managing your access to and experience on our website;

  • Supplying our services to you;

  • Supplying you with emails, sharing news, publications or other materials in respect of which you have actively opted-in;

  • Market or academic research;

  • Gathering feedback on any of our services, models, tools and web content which are under development; and

  • Marketing and sales purposes, which may include contacting you by telephone, post and/or email with information, news, invitations or requests.

Your Rights

All Personal Data is processed and stored securely, for no longer than is necessary consistent with the reason(s) for which it was first collected.

As well as the right to understand how your personal data will be collected and used, you have legal rights to:

  • See the Personal Data we hold about you;

  • Require any incorrect information to be corrected;

  • Require any or all information about you to be deleted (the right to be forgotten);

  • Object to our use of your Personal Data under the legitimate interest basis, and for direct marketing, academic (scientific) research and statistical purposes;

  • Restrict or suppress our use of your Personal Data under certain circumstances;

  • Unsubscribe from or opt out of any previous consent you have given to us.

If you wish to make a request, object, or give an instruction about the Personal Data we hold about you, please email, headed Data Request, Data Objection or Data Instruction, which will be dealt with promptly. We will respond using the same email address from which the Data Request, Objection or Instruction was sent, so we recommend that you use a private email platform. Any Personal Data sent to you in response to a Data Request will be encrypted. This may cause the email to become snagged in your spam filter.  You can also exercise any of these rights by calling us on +44 (0)20 7550 6333.

We will never disclose Personal Data over the phone. If the type of information you are requesting warrants it, we will only send it by email if we are satisfied as to your identity. Therefore, we may ask you to give us proof of your identity (such as a utility bill or passport image which we will delete after use). 



Cookies are small text files that are transferred to your computer’s hard drive by websites that you visit. These cookies are used to store information, such as the time that the current visit occurred, whether the visitor has been to the site before, the duration, and what site referred the visitor to the web page. There are other small text files that do a similar job to cookies, called APIs. They differ by storing the information on an external server, not your hard drive. For simplicity, in this policy we refer to both as cookies. 

Necessary Cookies

This site uses persistent and temporary (session) cookies to enable its core functionality and manage the site's performance. These ensure a smooth user experience as you navigate around the site.  The website cannot function properly without them, and can only be disabled by changing your browser preferences. 


Statistical Cookies

We use a third party service, Google Analytics, to collect standard internet log information and details of visitor behaviour patterns on our website. We do this to find out things such as the number of visitors to the various parts of the site. This information is only processed in a way which does not identify anyone. We do not make, and do not allow Google to make, any attempt to find out the identities of those visiting our website. If we do want to collect personally identifiable information through our website, we will be up front about this. We will make it clear when we collect personal information and will explain what we intend to do with it.

You can opt out of Google Analytics without affecting how you visit our site – for more information on opting out of being tracked by Google Analytics across all websites you use, visit this Google page. You can see information on how Google treats your privacy via this link.


Third-Party Cookies

We may from time to time add links in our pages to other websites. Our privacy policy does not cover other sites. When you visit our website, you may notice some cookies that are collecting information for third parties. For example, we use third-party applications and plug-ins to enrich your experience and allow our news items to be shared on social media platforms. The host and its partners may also use web beacons. These cookies and beacons may track a user’s overall activity online. We do not control and are not responsible for these, and we recommend that you visit the third-party websites for more information. See also the section below on how to control these kinds of cookies.

Control of Cookies

Due to the technical limitations of the platform which hosts this site (Wix), we are currently unable to offer detailed cookie controls without significantly affecting the operation of the site. You can see a list of cookies in use here. You can also adjust your browser preferences, which will control cookies across all the websites you visit, although this may also stop websites working properly. More information on browser preferences.

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