ACO Policy and Terms

These terms and conditions relate to use of the site

Additional terms and conditions are applicable to the use of the ACO hydraulic design software – these are clearly visible when registering for that particular site. is run by ACO Technologies plc

ACO Technologies plc
ACO Business Park
Hitchin Road
Bedfordshire, UK
SG17 5TE


We make every effort is made to ensure that the information on this site is accurate and up to date. However, ACO Technologies plc does not warrant or assume any legal liability for the accuracy of any information divulged and accepts no responsibility for any errors or oversights.

External Links

ACO Technologies plc is not responsible for the contents of any third party site pages or links provided within the site. Hyperlinks from the ACO site do not imply any kind of endorsement of the content of these pages.  In some instances visits to third party sites may involve third party cookies being placed on your machine.


The following refers to all text, photos and other design elements on this website.

All material published on this website is material for which copyright is owned by ACO Technologies plc and others. No part of any material may be copied or reproduced without prior permission of ACO Technologies plc or the copyright holder. If you would like permission to copy or reproduce the material from ACO Technologies plc which is available on the Internet, please contact us at the above address.

Privacy policy

Please see our section on ‘Privacy policy’ for more details


The website uses cookies – please see our section on ‘Cookie policy’ for more details

Passing on data

We do not disclose data to third parties.


We do not use a secure transmission method for you to send us data. We have implemented security policies, rules and technical measures to protect the personal data that we have under our control from:

  • Unauthorised access
  • Improper use or disclosure
  • Unauthorised modification

All our employees and suppliers that have access to, and are associated with the processing of personal data, are obliged to respect the confidentiality of our customer's personal data.

Rights for access to personal data

You are entitled to ask if we are keeping any personal data about you and you can also request a copy of that data. At any time you may request that we delete or correct your personal information, please contact ACO Technologies plc via email at or via the address above and address correspondence to the Personal Data Controller.

Non-Acceptance of the Terms and Conditions

If you do not accept these terms and conditions in full, you do not have permission to access the contents of the website and therefore should cease using the website immediately.

This privacy policy relates to use of

Your Personal Data:

What we collect

ACO Technologies will be what’s known as the ‘Controller’ of the personal data you provide to us. We only collect basic personal data about you which does not include any special types of information but can include location based information – this will normally be your place of work and is only entered by you. Information will always include your name and email.  Any other personal data stored by us will be provided by you and will only be with your consent. 

Why we process personal information

Recital 47 of the GDPR allows for the processing of personal information for our legitimate business interests in terms of direct marketing. “Legitimate Interests” means the interests of our company in conducting and managing our business to enable us to offer you the best services and applicable products, and the most appropriate and secure experience.

For example, we have an interest in making sure our marketing is relevant for you and your organisation, so we may process your information to send you marketing that is tailored to your interests in your business. We believe this processing is in your interests as well.

When we process your personal information based on legitimate interests, we make sure to consider and balance any potential impact on you (both positive and negative), and your rights under data protection laws. Our legitimate business interests do not automatically override your interests. We will not use your Personal Data for activities where our interests are overridden by the impact on you.

Processing of this data for ‘unsolicited’ marketing communications is also regulated by Privacy and Electronic Communications Regulations (PECR) consequently we are careful to ensure our processes conform to those requirements.

Where information has been directly requested by you, PECR is not relevant although in our communications we will always say who we are, display our telephone number and provide contact address whenever appropriate.

For corporate subscribers it may be that in the first instance what is known as a ‘soft opt-in’ will have been triggered by you through an active expression of interest in our business. We will always seek to offer clear and unambiguous options thereafter to ensure you receive only relevant information to your interest.

What are your rights?

We only use data for marketing where you have provided appropriate consent, however you are entitled to withdraw that consent at any time. 

PECR rules on consent, the soft opt-in and the right to opt-out, do not apply to electronic marketing messages sent by us to ‘corporate subscribers’. While you may receive a legitimate interest email from us based on a ‘soft opt-in’, we will always offer an easy and quick method to ‘opt out’.  

If at any point you believe the information we process on you is incorrect you can request to see this information and have it corrected or deleted within one calendar month. If you wish to raise a complaint on how we have handled your personal data, you can request for us to investigate the matter.

Data Protection is taken very seriously by ACO Technologies PLC and should you have any enquiries in the first instance your first point of contact should be via email to

If you are not satisfied with our response or believe we are processing your personal data not in accordance with the law you can complain to the Information Commissioner’s Office (ICO).

How we use your information

We would like to use your name and email address to provide you with information specific to your areas of interest, this would include things like technical updates, training, sector/role specific articles and new product updates. Ongoing use of your data for these communications will depend on your opt in preferences. 

Any information about you that we do hold is not shared with third parties and you can unsubscribe at any time via email

Storage of data

All the personal data we process is processed by our staff in the UK however for the purposes of IT hosting and maintenance this information is located on servers within the European Union and in the USA. No third parties have access to your personal data unless the law allows them to do so.

We have Data Protection processes in place to oversee the effective and secure processing of your personal data.

Data held in the USA is done so in partnership with a Processor that has successfully certified its adherence to the EU-US and/or Swiss-US Privacy Shield Framework, as administered by the U.S Privacy Shield Framework, as administered by the U.S. Department of Commerce and detailed at

More information is available on request.

How long we keep your data

Personal data is stored for varying lengths depending on nature and purpose for which it was collected. We store personal data in line with any applicable statutory minimum periods, and then review it periodically (usually annually) to ensure it is still necessary to be retained for the purpose for which it was collected. Where there is a statutory maximum for which data can be retained, such as County Court Judgements we will delete accordingly on expiration.

For registered users that have bought product from us we are required under UK tax law to keep your basic personal data (name, address, contact details) for a minimum of 6 years after which time it will be destroyed.

Cookies are text files that websites exchange with the devices used to browse the net, in order to store some data that will be re-used; they can be stored on the hard disk of your computer in order to make the browsing and the use of the same website easier.

Cookies can be used to determine whether a connection between your computer and our website has already happened or not.

It is obviously possible to visit the website without cookies. Most of the browsers automatically accepts cookies. The automatic registration of cookies can be avoided clicking on “do not accept cookies” among the options given. For further information on this operation, please consult the instruction of the browser. Deleting the cookies stored on the hard disk is possible at any time. Choosing not to accept cookies from the browser can limit the available functions of our website.

When visiting our website for the first time, a banner appears at the top of the screen by which we ask if you accept our cookie policy. The banner provides a link for further information. If the user chooses to ignore the notice and continues using the website, ACO will not store a cookie on the hard disk of the user’s computer to register the choice, and upon the following visit to the website, the approval to the use of cookies will be asked again. Only in case of acceptance the banner will not appear when visiting the website again, without prejudicing the possibility of deleting the cookies at any time, changing the settings of the browser.

Cookies can be divided into:

  • Necessary cookies. These cookies do not require the approval of the user because they are essential for the browsing and the correct functioning of the website.
  • Analysis and performance cookies. They are used to accept and analyse the traffic and use of the website. These cookies, even though not identifying the user, allow to detect if the same user visits the website again. They also allow to monitor the system and enhance its performance and user-friendliness. These cookies can be disabled with no loss of functionality.
  • Profiling cookies. They are permanent cookies used to identify (anonymously or not) the user’s preferences and improving his browsing experience. Our website does not use this kind of cookies.

Third Parties Cookies

When visiting our website, you will also receive third parties cookies, which provide the visitor with additional services and features and enhance the use of the website, such as the links to the social networks. This Privacy Policy does not apply to the services provided by third parties, and this website does not have any control on cookies completely managed by the third parties.

The data providing agreement exists between the visitor/user and the third parties only; therefore, receiving the approval for the use of these cookies lies with the third parties, and this website has no part in the agreement.

This website facilitates third party cookies for the following:

Website analytics - used to track user movement to enable better content managment and website layout

Social media - used only as long as social media content is viewed on the website. 

Analytics cookies we use

We use analysis tools that use cookies (performance cookies) to gather browsing data in order to examine the use of the website by the visitors, report on the activities of the website, and provide other information, including the number of visitors and the visited pages. The tools can also transfer this information to third parties, when provided by the law or when the said third parties treat the said information on behalf of analysis provider, eg Google.

Disabling Cookies

Cookies are linked to the browser that is being used, and MAY BE DISABLED FROM THE BROWSER SETTINGS, withholding or lifting the approval to the use of cookies. Please note that disabling the cookies may prevent some features of the website from working correctly.


In the following, we would like to take the opportunity to inform you how we handle your data in accordance with Art. 13 General Data Protection Regulation (GDPR). 

Responsible body

We, ACO Technologies plc, operate the following social media sites:











You can find our contact details on our contact us page at:

As well as us, there is also the operator of the social media platform itself. The operator is also considered a responsible body in this respect, and carries out its own data processing (separately to us), over which we have no influence.

Data processing by us

Data that you input when interacting with our social media sites, such as comments, videos, images, Likes, Tweets etc., is published through the social media platform and is not used or processed by us for other purposes at any point. We reserve the right to delete content only in the event that this should become necessary. Where appropriate, we will share your content on our page, if this is a function of the social media platform, and will communicate with you via the social media platform. The legal basis is Art. 6 para. 1 sentence 1 letter f GDPR. We tailor Facebook and Instagram advertising to selected target groups (e.g. Sponsored Posts, competitions) so that our content is visible to people for whom this content is relevant. We use the anonymised target groups that are available via Facebook Ads Manager in order to do this. Unfortunately, we have no influence over data processing carried out by Facebook Ads Manager. We are unable to identify individual persons at any time. We do not use Facebook Pixel, lead ads, chat bots or similar advertising aids that require surfing behaviour to be tracked.

Data processing is carried out in the interests of our public relations activities and communication.

If you would like to object to specific data processing procedures, please use the contact details stated on our contact us page to get in touch. We will then review your objection.

If you make enquiries via our social media platforms, depending on the answer required, we may refer you to other, more secure communication channels in order to guarantee confidentiality. You can always send us confidential enquiries at the postal address stated in on our contact us page.

Data processing by the operator of the social media platform

We cannot guarantee that the operator of the social media platform will not use web tracking methods. Web activity may be tracked irrespective of whether you are logged into or registered with the social media platform. Unfortunately, we have no influence over the web tracking methods of the social media platform.

Please be aware: We cannot guarantee that the social media platform provider will not use your profile and behavioural data, for example to evaluate your habits, personal relationships, preferences etc. We have no influence of any kind over the processing of your data by the social media platform provider.

Further information on data processing by the social media platform provider can be found in the provider’s Privacy Policy:

  • Twitter:
  • Facebook:
  • LinkedIn:
  • YouTube:
  • Instagram:

Your rights as a user

In relation to the processing of your personal data, the GDPR grants certain rights for you as a website user:

1.) Right of access (Art. 15 GDPR):

You have the right to obtain information as to whether your personal data has been processed; if this is the case, you have the right to access this personal data and the information specifically listed in Art. 15 GDPR.

2.) Right to rectification and erasure (Art. 16 and 17 GDPR):

You have the right to obtain the immediate rectification of incorrect personal data concerning you, and where necessary to request the completion of incomplete personal data.

You also have the right to obtain the immediate erasure of personal data concerning you, provided one of the reasons specifically listed in Art. 17 GDPR applies, e.g. when data is no longer required for the purpose pursued.

3.) Right to restriction of processing (Art. 18 GDPR):

You have the right to obtain the restriction of processing if one of the conditions listed in Art. 18 GDPR is met, such as for the duration of a potential evaluation if you have lodged an objection against processing.

4.) Right to data portability (Art. 20 GDPR)

In certain cases, which are listed specifically in Art. 20 GDPR, you have the right to receive your personal data in a structured, common and machine-readable format, and/or request transmission of this data to a third party. 

5.) Right to object (Art. 21 GDPR):

If data is collected on the basis of Art. 6 para. 1 letter f (data processing for the protection of legitimate interests), you have the right to lodge an objection against this processing at any time, for reasons arising from your specific situation. We will then no longer process the personal data, unless there are demonstrable and compelling legitimate grounds for processing that outweigh the interests, rights and freedoms of the person concerned, or processing is carried out in order to assert, exercise or defend legal claims.

Right to lodge a complaint with a supervisory authority

You have the right to lodge a complaint with a supervisory authority in accordance with Art. 77 GDPR, if you believe the processing of your data violates data protection regulations. The right to lodge a complaint can be asserted in particular with a supervisory authority in the Member State in which you are habitually resident, in which you work, or in which the alleged violation took place.

Contact details for the Data Protection Officer

For information or suggestions relating to the topic of data protection, please do not hesitate to contact our Data Controller:

Tel: 01462 816666



By entering a competition on the Facebook page you are agreeing to ACO storing and using your information in line with our social media policy. We will not share your information with third parties unless you specifically agree to us sharing these details.

This Promotion is in no way sponsored, endorsed or administered by, or associated with Facebook. By participating you hereby release and hold harmless Facebook from any and all liability associated with this promotion.

This Promotion is in no way sponsored, endorsed or administered by, or associated with Nando’s. By participating you hereby release and hold harmless Nando’s from any and all liability associated with this promotion.

Entrants are providing information to ACO TECHNOLOGIES PLC and not to Facebook or Nando’s.

By adding photos to the Facebook competition gallery you are granting permission for these images to be used by ACO TECHNOLOGIES PLC on our website and other online communications.

By submitting your photo you understand and agree that ACO TECHNOLOGIES PLC has no obligation to publish your photo. You must be the author/copy write holder of all images submitted.

Please read these competition rules carefully. If you enter one of our competitions, we will assume that you have read these rules and that you agree to them.

 1. To enter a competition you must be: 
(a) UK resident; and 
(b) 18 years old or over at the time of entry.

2. Competitions are not open to employees (or members of their immediate families) of ACO TECHNOLOGIES PLC.

3. Entries must be posted on Facebook. The entry needs to be submitted on the Facebook page, by either messaging us directly your image(s) or by responding to the relevant competition post with your image. Pictures will not be considered for judging if they’ve just been posted on your timeline.

4. No responsibility can be accepted for entries that are not received for any reason.

5. The winner will be the entrant(s) selected by our judge.

6. The closing date is as specified in each competition, and ACO TECHNOLOGIES PLC reserves the right to amend the competition end date at any time.

7. If you win a competition, we will notify you by telephone or e-mail. If we cannot contact you or you do not respond within one week, we reserve the right to offer the prize to another competition entrant.

8. The prize cannot be transferable to another person.

9. No prize or part of a prize is exchangeable for cash, tickets or services.

10. If an advertised prize is not available, we reserve the right to offer an alternative prize.

11. Incorrectly completed entries will be disqualified.

12. Please read our Privacy Policy which tells you how we use any personal information we may collect about you by entering a competition.

13. ACO TECHNOLOGIES PLC reserves the right to amend these rules at any time. We may also create rules which will apply to a specific competition only. If we do this we will publish the amended competition rules and/or specific competition rules on the relevant competition page.


This document, approved by the Directors of ACO Technologies plc, sets out the Company’s policy and approach to conducting its tax affairs and dealing with tax risk, effective for the year ending 31st December 2020.


ACO Technologies plc and its subsidiary undertakings (hereinafter collectively referred to as “ACO”) is a wholly-owned subsidiary of ACO Severin Ahlmann Holdings GmbH incorporated in Germany.

This tax strategy document is produced in accordance with the requirements of Section 161 and Schedule 19 Finance Act 2016 to publish its UK tax strategy and approach to tax.

The tax strategy is owned by ACO’s Senior Management Team and adheres to the principles and philosophy of the parent company, with responsibility for its day-to-day implementation delegated to the CFO and other qualified accountants within the Finance Team, who have a broad understanding of tax principles and the Group’s tax strategy.

The tax strategy applies to all forms of taxes payable, including direct taxes, indirect taxes, payroll-based taxes, customs duties etc and as a responsible taxpayer, ACO is committed to paying the correct amount of tax due on time.

ACO is committed to complying with all relevant tax laws, rules, regulations, reporting and disclosure requirements, and to having a constructive, professional and transparent relationship with all relevant tax authorities, based on the concepts of integrity, collaboration and trust.

Tax Risk Management

ACO follows risk management systems as part of the internal control processes, identifying, assessing and managing risks by applying diligent professional care and judgement in order to arrive at well-reasoned conclusions as it strives to be regarded as a low-risk taxpayer.

The day-to-day management, implementation and compliance of tax affairs is provided by the Finance Team and where necessary, external tax professionals’ advice is used to help facilitate decision-making.

Responsibility for tax governance and strategy lies with the CFO, with oversight by ACO’s Senior Management Team.

Tax Planning: Our Approach

Tax risk is one of the commercial risks that ACO is exposed to. Management of tax risk aims to ensure that the Group pays and collects the correct amount of tax and complies with statutory reporting and disclosure requirements whilst meeting its business objectives.

ACO will seek to take advantage of tax incentives and reliefs, such as R&D tax claims, in accordance with the applicable legislation, where these support the commercial needs of the Group. ACO does not engage in any aggressive tax positions where the sole purpose would be to reduce tax.

Where ACO encounters uncertainty surrounding the interpretation of tax laws or unexpected complexity in relation to risk, external expert advice is sought to support the tax activities, including meeting our tax compliance requirements.

Tax Risks

ACO’s approach to tax risks follows the same principles that apply to all other business risks.

Compliance and Reporting Risk is actively managed by ensuring key personnel stay abreast of any changes in tax law through legislative updates, attendance at third-party technical seminars and by obtaining external assistance from professional firms. Segregation of duties is maintained between the preparation and review of tax computations and returns, which are then approved by the CFO to ensure accuracy of reporting. All tax-related documents must be reviewed and approved by appropriate personnel.

Risk to reputation and corporate social responsibility as well as purely financial impacts is considered as part of any decision-making process, and if doubt exists, a prudent approach is taken.

Relationships with Tax Authorities

ACO is committed to the principles of openness and transparency in its dealings with tax authorities.

ACO endeavours to:

  • Interpret the law and tax legislation in a reasonable way.
  • Maintain an open and collaborative professional relationship at all times with HMRC.
  • Provide accurate and timely disclosures in correspondence and returns, query responses and other HMRC information requests in a timely manner.
  • Where appropriate, engage in meaningful dialogue with HMRC on relevant taxation matters on a co-operative basis with honesty and respect.