| 11.11.2020 16:40 | | Second Price Monitoring Extn | RNS |
| 11.11.2020 16:35 | | Price Monitoring Extension | RNS |
| 15.09.2020 06:00 | | Interim Results for 6 months ended 30 June 2020 | RNS |
| 04.09.2020 08:05 | | Second Price Monitoring Extn | RNS |
| 04.09.2020 08:00 | | Price Monitoring Extension | RNS |
| 04.09.2020 06:00 | | Exclusive deal w/ NHS-owned Support Services Group | RNS |
| 16.07.2020 12:30 | | Awards of share options & appreciation rights | RNS |
| 15.07.2020 14:15 | | Director/PDMR Shareholding | RNS |
| 14.07.2020 10:42 | | Result of AGM | RNS |
| 14.07.2020 06:00 | | AGM Statement | RNS |
| 25.06.2020 09:00 | | Director/PDMR Shareholding | RNS |
| 19.06.2020 13:36 | | Director/PDMR Shareholding | RNS |
| 18.06.2020 06:00 | | Posting of Annual Report & Notice of AGM | RNS |
| 28.05.2020 06:00 | | Final Results | RNS |
| 27.05.2020 12:52 | | 2019 Results Date and Investor Conference Call | RNS |
| 13.05.2020 15:41 | | Second Price Monitoring Extn | RNS |
| 13.05.2020 15:35 | | Price Monitoring Extension | RNS |
| 12.05.2020 13:05 | | Second Price Monitoring Extn | RNS |
| 12.05.2020 13:00 | | Price Monitoring Extension | RNS |
| 11.05.2020 13:06 | | Second Price Monitoring Extn | RNS |
| 11.05.2020 13:00 | | Price Monitoring Extension | RNS |
| 07.05.2020 10:40 | | Further re specialist COVID-19 sanitising service | RNS |
| 04.05.2020 11:01 | | Holding(s) in Company | RNS |
| 14.04.2020 13:00 | | Postponement of 2019 audited results | RNS |
| 09.04.2020 06:00 | | Holding(s) in Company | RNS |
| 23.03.2020 15:15 | | Trading Update and COVID-19 response | RNS |
| 13.02.2020 07:00 | | PRE-CLOSE TRADING UPDATE | RNS |
| 31.01.2020 14:00 | | Director/PDMR Shareholding | RNS |
| 18.11.2019 11:46 | | Awards of share options | RNS |
| 05.11.2019 07:00 | | Trading Update | RNS |
| 27.09.2019 06:00 | | Issue of Equity | RNS |
| 09.09.2019 06:00 | | Interim Results | RNS |
| 23.08.2019 14:00 | | Notice of Results | RNS |
| 28.06.2019 06:00 | | Director/PDMR Shareholding | RNS |
| 27.06.2019 12:41 | | Issue of Equity | RNS |
| 25.06.2019 15:17 | | Issue of Equity | RNS |
| 12.06.2019 12:23 | | Result of AGM | RNS |
| 12.06.2019 06:00 | | AGM Statement | RNS |
| 28.05.2019 15:50 | | Issue of Equity | RNS |
| 16.05.2019 16:27 | | Director/PDMR Shareholding | RNS |
| 08.05.2019 17:05 | | Posting of Annual Report and Notice of AGM | RNS |
| 29.04.2019 15:49 | | Holding(s) in Company | RNS |
| 15.04.2019 06:00 | | Final Results | RNS |
| 25.03.2019 17:11 | | Holding(s) in Company | RNS |
| 21.03.2019 08:30 | | Completion of Acquisition & Total Voting Rights | RNS |
| 18.02.2019 07:00 | | Appointment of Non-Executive Director | RNS |
| 15.02.2019 16:30 | | Replacement - Pre-Close Trading Update | RNS |
| 14.02.2019 07:00 | | Pre-Close Trading Update | RNS |
| 01.02.2019 07:00 | | Issue of Equity & Director/PDMR Shareholding | RNS |
| 25.01.2019 15:40 | | Awards of share options & appreciation rights | RNS |
| 21.12.2018 17:15 | | Holding(s) in Company | RNS |
| 21.12.2018 17:00 | | Holding(s) in Company | RNS |
| 20.12.2018 14:02 | | Holding(s) in Company | RNS |
| 19.12.2018 13:00 | | Acquisition of Watbio Holdings Limited | RNS |
| 13.12.2018 11:19 | | Holding(s) in Company | RNS |
| 13.12.2018 11:18 | | Holding(s) in Company | RNS |
| 06.09.2018 11:00 | | Holding(s) in Company | RNS |
| 04.09.2018 06:00 | | Interim Results | RNS |
| 10.08.2018 06:00 | | Pre-Close Trading Update | RNS |
| 05.06.2018 11:11 | | Result of AGM | RNS |
| 05.06.2018 06:00 | | Trading Update | RNS |
| 11.05.2018 06:00 | | Posting of AR&A, AGM notice & Dividend Declaration | RNS |
| 17.04.2018 06:00 | | Final Results | RNS |
| 07.02.2018 07:00 | | Pre-Close Trading Update | RNS |
| 31.01.2018 07:00 | | Purchase of FiltaFry Deutschland GmbH | RNS |
| 04.01.2018 13:16 | | Sale of Refrigeration and HVAC business | RNS |
| 23.11.2017 07:00 | | Exercise of Options | RNS |
| 07.09.2017 06:00 | | Interim Results | RNS |
| 22.08.2017 06:00 | | Acquisition of Grease Management Ltd | RNS |
| 07.08.2017 06:00 | | Trading update | RNS |
| 01.06.2017 10:21 | | Result of AGM | RNS |
| 01.06.2017 06:00 | | Trading Update | RNS |
| 08.05.2017 10:40 | | Awards of options and share appreciation rights | RNS |
| 08.05.2017 10:36 | | Posting of Accounts,AGM notice and Maiden Dividend | RNS |
| 03.04.2017 06:00 | | Preliminary Results | RNS |
| 10.03.2017 07:00 | | Notice of Results | RNS |
| 04.11.2016 07:00 | | Admission and First Day of Dealings | RNS |
