evacuation management
and emergency roll-call

Robust evacuation management and emergency roll-calls,
even if your electricity or network has failed.

request info book demo

nobody left behind.

Sweep & Clear

An evacuation management system for sites without access control, Musterd Sweep & Clear helps ensure safety during an emergency.

For Access Control

Musterd keeps in touch with your access control system and helps you locate your personnel when the alarm goes off.

what's musterd?

Musterd is an evacuation management and emergency roll-call system.
Using software, smartphone and cloud technology, Musterd ensures the safety of all personnel on a physical site during an emergency. Know who's where, when.

Musterd integrates with your access control system, so it stays informed about the up-to-date locations of all people on your site -- in real-time.

Musterd uses fast, secure communications to synchronize this data across a network of hand-held Musterd devices. In an emergency, any Musterd device can instantly produce a list of 'unsafe' people for roll-call, mustering and rescue operations – even if your access control system has been disabled.

Musterd operates across your whole site, and manages combined, real-time 'safe' and 'unsafe' lists of your personnel. If anyone hasn't reported for roll-call at a Musterd device, then Musterd tells you where they might be found.

book demo Questions? Check out our FAQ

musterd works on locations of all sizes

how musterd works in an emergency

When an emergency strikes, Musterd ensures the safety of your personnel. By giving safety teams a real-time view of site personnel location and safety status, Musterd tells you where your people are to be found, who's safe and who's not.


  • An alarm is raised - either manually or automatically - and a threat type is assigned
  • Fire marshals with hand-held Musterd devices move to muster points to initiate the evacuation and roll-call process


  • Musterd directs safety crews and personnel towards safe muster points
  • Musterd combines access control and Musterd device data, to provide all safety crews with a live, up-to-date view of an evacuation in progress


  • Personnel register with Musterd devices at safe muster points
  • Safe and unsafe lists are built and updated in real-time across multiple devices and muster points
  • A list of last-known locations of remaining unsafe personnel is immediately available to rescue crews

musterd in action

Musterd hand-held devices manage evacuations and roll-calls in real time, as an emergency unfolds.

Musterd works quietly in the background,
while you focus on your business

how musterd is resilient

Musterd is built to survive. In an emergency, Musterd continues to work after the power fails, the network has crashed or the access control system has been disabled.

Musterd’s Cloud Support and real-time updates allow Musterd to “go it alone”, continuing to protect personnel by providing last known locations even when critical infrastructure is damaged

If WiFi fails, then Musterd automatically switches to the local GSM / Mobile Phone Network

Musterd hand-held devices remove the need for printed lists or network-dependent technology. Musterd works even when printers or other systems are jammed, disconnected or out of reach

Musterd works with many types of emergencies, and more than one simultaneously:

how musterd stays synchronized

Musterd doesn't sleep. Day and night, Musterd stays in touch with your access control, capturing the data it needs to build a complete picture of your personnel and where to find them.

access control synchronization

Musterd is compatible with most Access Control Systems.

musterd cloud integration

Musterd Cloud Servers provide real-time data on the whereabouts and movements of people across your site.

musterd hand-held devices

In an emergency or a drill, Musterd Hand-held devices put personnel location data in the hands of the Fire Marshals and Rescue Teams who need it.

everything else

Musterd is designed to enhance the safety of personnel on any site.

Musterd delivers real-time, dynamic safety information in an emergency
Musterd keeps working even if your access control, power or network is disabled
Unlike a paper roll-call list, Musterd works in the rain, and in the dark
Musterd separately tracks the locations of fire marshals, first aiders and other specialists
Musterd captures and reports fire drill performance. See who's taking safety seriously - and who isn't
Musterd replaces expensive, hard-wired fixed muster points
Musterd handles multiple threats simultaneously (e.g. a combined fire and gas leak emergency)
Musterd uses secure, encrypted communications, to keep your data safe and synchronized
Musterd is cloud-based, and can be hosted on Microsoft Azure or your private servers.

what our clients say




thinking software

Thinking Software is a committed, innovative supplier of Workforce Management and Time and Attendance solutions, founded in 1994.

Our clients rely on us to provide systems which improve the safety of their personnel, as well as robust time and attendance monitoring, human resources compliance and workforce resource planning.

Used by numerous businesses around the globe, Thinking Software helps its clients keep costs down, improve efficiency and enhance business performance.

With our combined expertise in software design and customer support we serve a wide range of sectors including hospitality, leisure and entertainment, care providers, manufacturers, construction sites, local authorities and education, retail and services.

terms & conditions

  1. Introduction
    The Website Owner, including subsidiaries and affiliates (“Website” or “Website Owner” or “we” or “us” or “our”) provides the information contained on this website or any of the pages comprising the website (“website”) to visitors (“visitors”) (cumulatively referred to as “you” or “your” hereinafter) subject to the terms and conditions set out in these website terms and conditions, the privacy policy and any other relevant terms and conditions, policies and notices which may be applicable to a specific section or module of this website.
  2. Information on the Website
    Whilst every effort is made to update the information contained on this website, neither the Website Owner nor any third party or data or content provider make any representations or warranties, whether express, implied in law or residual, as to the sequence, accuracy, completeness or reliability of information, opinions, any share price information, research information, data and/or content contained on the website (including but not limited to any information which may be provided by any third party or data or content providers) (“information”) and shall not be bound in any manner by any information contained on the website. the Website Owner reserves the right at any time to change or discontinue without notice, any aspect or feature of this website. No information shall be construed as advice and information is offered for information purposes only and is not intended for trading purposes. You and your company rely on the information contained on this website at your own risk. If you find an error or omission at this site, please let us know.
  3. Trade Marks
    The trade marks, names, logos and service marks (collectively “trade marks”) displayed on this website are registered and unregistered trade marks of the Website Owner. Nothing contained on this website should be construed as granting any licence or right to use any trade mark without the prior written permission of the Website Owner.
  4. External Links
    External links may be provided for your convenience, but they are beyond the control of the Website Owner and no representation is made as to their content. Use or reliance on any external links and the content thereon provided is at your own risk. When visiting external links you must refer to that external websites terms and conditions of use. No hypertext links shall be created from any website controlled by you or otherwise to this website without the express prior written permission of the Website Owner. Please contact us if you would like to link to this website or would like to request a link to your website.
  5. Public Forums and User Submissions
    The Website Owner is not responsible for any material submitted to the public areas by you (which include bulletin boards, hosted pages, chat rooms, or any other public area found on the website. Any material (whether submitted by you or any other user) is not endorsed, reviewed or approved by the Website Owner. The Website Owner reserves the right to remove any material submitted or posted by you in the public areas, without notice to you, if it becomes aware and determines, in its sole and absolute discretion that you are or there is the likelihood that you may, including but not limited t :

    1. Defame, abuse, harass, stalk, threaten or otherwise violate the rights of other users or any third parties;
    2. Publish, post, distribute or disseminate any defamatory, obscene, indecent or unlawful material or information;
    3. Post or upload files that contain viruses, corrupted files or any other similar software or programmes that may damage the operation of the Website Owner’s and/or a third party’s computer system and/or network;
    4. Violate any copyright, trade mark, other applicable Great Britain or international laws or intellectual property rights of the Website Owner or any other third party;
    5. Submit contents containing marketing or promotional material which is intended to solicit business.
  6. Specific Use
    You further agree not to use the website to send or post any message or material that is unlawful, harassing, defamatory, abusive, indecent, threatening, harmful, vulgar, obscene, sexually orientated, racially offensive, profane, pornographic or violates any applicable law and you hereby indemnify the Website Owner against any loss, liability, damage or expense of whatever nature which the Website Owner or any third party may suffer which is caused by or attributable to, whether directly or indirectly, your use of the website to send or post any such message or material.
  7. Warranties
    The Website Owner makes no warranties, representations, statements or guarantees (whether express, implied in law or residual) regarding the website, the information contained on the website, your or your company’s personal information or material and information transmitted over our system.
  8. Disclaimer of Liability.
    The Website Owner shall not be responsible for and disclaims all liability for any loss, liability, damage (whether direct, indirect or consequential), personal injury or expense of any nature whatsoever which may be suffered by you or any third party (including your company), as a result of or which may be attributable, directly or indirectly, to your access and use of the website, any information contained on the website, your or your company’s personal information or material and information transmitted over our system. In particular, neither the Website Owner nor any third party or data or content provider shall be liable in any way to you or to any other person, firm or corporation whatsoever for any loss, liability, damage (whether direct or consequential), personal injury or expense of any nature whatsoever arising from any delays, inaccuracies, errors in, or omission of any share price information or the transmission thereof, or for any actions taken in reliance thereon or occasioned thereby or by reason of non-performance or interruption, or termination thereof.
  9. Use of the Website.
    The Website Owner does not make any warranty or representation that information on the website is appropriate for use in any jurisdiction (other than Great Britain ). By accessing the website, you warrant and represent to the Website Owner that you are legally entitled to do so and to make use of information made available via the website.
  10. General
    1. Entire Agreement. These website terms and conditions constitute the sole record of the agreement between you and the Website Owner in relation to your use of the website. Neither you nor the Website Owner shall be bound by any express tacit or implied representation, warranty, promise or the like not recorded herein. Unless otherwise specifically stated these website terms and conditions supersede and replace all prior commitments, undertakings or representations, whether written or oral, between you and the Website Owner in respect of your use of the website.
    2. Alteration. The Website Owner may at any time modify any relevant terms and conditions, policies or notices. You acknowledge that by visiting the website from time to time, you shall become bound to the current version of the relevant terms and conditions (the “current version”) and, unless stated in the current version, all previous versions shall be superseded by the current version. You shall be responsible for reviewing the then current version each time you visit the website.
    3. Conflict. Where any conflict or contradiction appears between the provisions of these website terms and conditions and any other relevant terms and conditions, policies or notices, the other relevant terms and conditions, policies or notices which relate specifically to a particular section or module of the website shall prevail in respect of your use of the relevant section or module of the website.
    4. Waiver. No indulgence or extension of time which either you or the Website Owner may grant to the other will constitute a waiver of or, whether by estoppel or otherwise, limit any of the existing or future rights of the grantor in terms hereof, save in the event or to the extent that the grantor has signed a written document expressly waiving or limiting such rights.
    5. Cession. The Website Owner shall be entitled to cede, assign and delegate all or any of its rights and obligations in terms of any relevant terms and conditions, policies and notices to any third party.
    6. Severability. All provisions of any relevant terms and conditions, policies and notices are, notwithstanding the manner in which they have been grouped together or linked grammatically, severable from each other. Any provision of any relevant terms and conditions, policies and notices, which is or becomes unenforceable in any jurisdiction, whether due to voidness, invalidity, illegality, unlawfulness or for any reason whatever, shall, in such jurisdiction only and only to the extent that it is so unenforceable, be treated as pro non scripto and the remaining provisions of any relevant terms and conditions, policies and notices shall remain in full force and effect.
    7. Applicable laws. Any relevant terms and conditions, policies and notices shall be governed by and construed in accordance with the laws of Great Britain without giving effect to any principles of conflict of law. You hereby consent to the exclusive jurisdiction of the High Court of Great Britain in respect of any disputes arising in connection with the website, or any relevant terms and conditions, policies and notices or any matter related to or in connection therewith.
    8. Comments or Questions. If you have any questions, comments or concerns arising from the website, the privacy policy or any other relevant terms and conditions, policies and notices or the way in which we are handling your personal information please contact us.

privacy policy

At Thinking Software, we are committed to safeguarding and preserving the privacy of our visitors

This Privacy Policy explains what happens to any personal data that you provide to us, or that we collect from you, whilst you visit our site.

We update this Policy from time to time, so please review this Policy regularly.

Information We Collect
In running and maintaining our website we may collect and process the following data about you:

Use of Cookies
Cookies provide information regarding the computer used by a visitor. We may use cookies where appropriate to gather information about your computer fin order to assist us in improving our website.

We may gather information about your general internet use by using the cookie. Where used, these cookies are downloaded to your computer and stored on the computer’s hard drive. Such information will not identify you personally. It is statistical data. This statistical data does not identify any personal details whatsoever.

You can adjust the settings on your computer to decline any cookies if you wish. This can easily be done by activating the reject cookies setting on your computer.

Our advertisers may also use cookies, over which we have no control. Such cookies (if used) would be downloaded once you click on advertisements on our website.

Use of Your Information
We use the information that we collect from you to provide our services to you. In addition to this we may use the information for one or more of the following purposes:

If you have previously purchased goods or services from us we may provide to you details of similar goods or services, or other goods and services, that you may be interested in.

Where your consent has been provided in advance we may allow selected third parties to use your data to enable them to provide you with information regarding unrelated goods and services which we believe may interest you. Where such consent has been provided it can be withdrawn by you at any time.

Storing Your Personal Data
In operating our website it may become necessary to transfer data that we collect from you to locations outside of the European Union for processing and storing. By providing your personal data to us, you agree to this transfer, storing or processing. We do our upmost to ensure that all reasonable steps are taken to make sure that your data is treated stored securely.

Unfortunately the sending of information via the internet is not totally secure and on occasion such information can be intercepted. We cannot guarantee the security of data that you choose to send us electronically, Sending such information is entirely at your own risk.

Disclosing Your Information
We will not disclose your personal information to any other party other than in accordance with this Privacy Policy and in the circumstances detailed below:

Third Party Links
On occasion we include links to third parties on this website. Where we provide a link it does not mean that we endorse or approve that site’s policy towards visitor privacy. You should review their privacy policy before sending them any personal data.

Access to Information
In accordance with the Data Protection Act 1998 you have the right to access any information that we hold relating to you. Please note that we reserve the right to charge a fee of £10 to cover costs incurred by us in providing you with the information.

Contacting Us
Please do not hesitate to contact us regarding any matter relating to this Privacy Policy.

contact us

Nullam id dolor id nibh ultricies vehicula ut id elit. Donec sed odio dui. Etiam porta sem malesuada magna mollis euismod. Donec id elit non mi porta gravida at eget metus. Sed posuere consectetur est at lobortis. Etiam porta sem malesuada magna mollis euismod. Sed posuere consectetur est at lobortis.

Aenean eu leo quam. Pellentesque ornare sem lacinia quam venenatis vestibulum. Maecenas sed diam eget risus varius blandit sit amet non magna. Nullam quis risus eget urna mollis ornare vel eu leo. Integer posuere erat a ante venenatis dapibus posuere velit aliquet.

How can we help?