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Privacy Policy

1. Introduction 

Stack International Operations Limited, and Stack International US, Inc. (“Stack”, “we”, “us” or “our”) are committed to the protection and security of your personal data. This Privacy Policy explains how we will collect, process, use or share any personal data we collect from you, or that you provide to us when you use this website (the “Website”). 

If you are located in the EEA, Stack is the controller of your personal data provided via our Website pursuant to the EU General Data Protection Regulation 2016/679. 

Please read this Privacy Policy to understand how we may process your personal data provided via our Website. 

By visiting our Website, you are acknowledging the terms of this Privacy Policy. Any external links to other websites are clearly identifiable as such, and we are not responsible for the content or the privacy policies of these other websites. 

2. How do we collect information from you? 

Communications via our Website: We collect personal data when you provide it to us through communications via our Website. This includes where you have contacted us through the channels listed on the Website and situations in which you have chosen to provide the information to us, including, for example, for recruitment purposes. The type of personal data we may collect includes identity data (including name), contact data (including email address and telephone number), country, location, and any other personal data you provide to us via the ‘Contact’ or ‘Let’s talk’ pages on our Website. 

When you purchase our services: We collect personal data when you provide it to us in order for us to provide you with services. The type of personal data we may collect includes identity data (including name), contact data (including email address and telephone number), country, location, and any other personal data you provide to us. 

Cookies: We may collect information using cookies when you use our Website. Cookies are small data files stored on the hard drive of your computer or mobile device by a website. We may use both session cookies (which expire once you close your web browser) and persistent cookies (which stay on your computer or mobile device until they expire or you delete them) to provide you with a more personal and interactive experience on our Website. 

Our Website uses the following types of cookies for the purposes: 

  • Type of cookie 
  • Purpose 
  • Essential Cookies 

These cookies are essential to provide you with services available through our Website and to enable you to use some of its features. Without these cookies, the services that you have asked for cannot be provided, and we only use these cookies to provide you with those services. 

Analytics and Performance Cookies 

These cookies are used to collect information about traffic to our Website and how users use our Website. The information gathered via these cookies does not “directly” identify any individual visitor. However, it may render such visitors “indirectly identifiable”. This is because the information collected is typically linked to a pseudonymous identifier associated with the device you use to access our Website. The information collected is aggregated and anonymous. We use this information to help operate our Website more efficiently, to gather broad demographic information and to monitor the level of activity on our Website. 

We use Google Analytics and Hubspot for this purpose. Google Analytics uses itsThey use their own cookies. It is only used to and we only use them to improve how our Website works. You can find out more information about Google Analytics cookies here: 

Social Media Cookies 

These cookies are used when you share information using a social media sharing button or “like” button on our Website or you link your account or engage with our content on or through a social networking website such as Facebook, Twitter or LinkedIn. The social network will record that you have done this. 

3. Purposes for processing your personal data 

We process any personal data you provide to us to ensure compliance with local legal and regulatory requirements and for the purposes of our legitimate business interests, including:

  • to enable us to respond to an enquiry or other request you make when you contact us via our Website; 
  • to form a view on what may be of interest to you, and what services and offers may be relevant for you; 
  • to comply with our legal obligations, standards, policies and procedures; and 
  • to better understand how you interact with our Website, including its functionality and features, and ensure that content is presented in the most effective way. 

4. Sharing your information 

We may share your personal data with: 

our affiliated companies; 

Government bodies and agencies in the UK and overseas to comply with our legal and regulatory obligations; 

a prospective seller or buyer in the event of a sale or purchase of any Stack business or asset so that the buyer can continue to provide you with information and services; and 

our service providers that we engage to provide services for us. Where we provide your personal data to third party services providers, they are required to keep your personal data confidential and secure, and must only use your personal data as instructed by us. 

We may also disclose your personal data where required to respond to authorised requests from government authorities or where required by law. Where we are required by law, we may also disclose your personal data where it is necessary to enforce or apply this Privacy Policy or other agreements, to investigate or protect the rights, property or safety of Stack and our group companies, our products and services and our customers, distributors or business partners or to prevent or take action regarding illegal activities or fraud, situations involving potential threats to the safety of any person or as evidence in litigation. 

5. Storing your personal data 

Your personal data collected via our Website will be stored on servers located in the USA. 

We have implemented appropriate safeguards, to protect your personal data when it is transferred outside the European Economic Area (“EEA”), including the execution of data transfer agreements with recipients of the information. 

6. Marketing communications preferences 

You can ask us to stop sending you marketing messages at any time by following the opt-out links on any marketing message sent to you, or by contacting us at any time using the contact details in this Privacy Policy. 

7. Data retention 

We will only retain your personal information for as long as necessary to fulfil the purposes we collected it for, including for the purposes of satisfying any legal, accounting, or reporting requirements. To determine the appropriate retention period for personal information, we consider the amount, nature, and sensitivity of the personal data, the potential risk of harm from unauthorised use or disclosure of your personal data, the purposes for which we process your personal information and whether we can achieve those purposes through other means, and the applicable legal requirements. 

8. Your rights 

You may inform us of any changes in your personal data, and in accordance with our obligations under applicable data protection laws, we will update or delete your personal data accordingly. 

If you are located in the EEA, you may have the right to: (a) request access to personal data we hold about you; (b) request we correct any inaccurate personal data we hold about you; (c) request we delete any personal data we hold about you; (d) restrict the processing of personal data we hold about you; (e) object to the processing of personal data we hold about you; and/or (f) where we process your personal data to fulfil a contract between us, receive any personal data we hold about you in a structured and commonly used machine-readable format or have such personal information transmitted to another company. 

We may ask you for additional information to confirm your identity and for security purposes, before disclosing information requested to you. 

To exercise any of your rights in connection with your personal data, please contact us by email at or by mail to 2 Underwood Row, London, United Kingdom, N1 7LQ. We will process any request in line with any local laws and our policies and procedures. If you are located in the EEA, you have the right to lodge a complaint about how we process your personal data with the supervisory authority in your country. 

9. Changes to this Privacy Policy 

Any changes to this Privacy Policy in the future will be posted on this page and, where appropriate, notified to you by e-mail. Please check back frequently to see any updates or changes to this Privacy Policy. 

10. How you can contact us 

If you have any questions about the processing of personal data via this Website, please contact us by email at: If you contact us, we will do our utmost best to address any concerns you may have about our processing of your personal data.