| 18/05/20 | 07:00:08 | 18 May 2020 | | Directorate Change | RNS |
| 14/05/20 | 07:00:08 | 14 May 2020 | | Material Contract Award | RNS |
| 23/04/20 | 12:24:34 | 23 Apr 2020 | | TR-1: Notification of major holdings | RNS |
| 21/04/20 | 15:35:43 | 21 Apr 2020 | | TR-1: Notification of major holdings | RNS |
| 20/04/20 | 16:41:55 | 20 Apr 2020 | | Second Price Monitoring Extn | RNS |
| 20/04/20 | 16:36:37 | 20 Apr 2020 | | Price Monitoring Extension | RNS |
| 06/04/20 | 07:00:10 | 6 Apr 2020 | | Trading Update | RNS |
| 16/03/20 | 16:43:15 | 16 Mar 2020 | | Second Price Monitoring Extn | RNS |
| 16/03/20 | 16:38:53 | 16 Mar 2020 | | Price Monitoring Extension | RNS |
| 27/02/20 | 07:00:12 | 27 Feb 2020 | | Board Appointment | RNS |
| 26/02/20 | 11:13:17 | 26 Feb 2020 | | Result of AGM | RNS |
| 26/02/20 | 07:00:02 | 26 Feb 2020 | | AGM Statement | RNS |
| 03/02/20 | 07:00:10 | 3 Feb 2020 | | Contract Award | RNS |
| 30/01/20 | 07:00:07 | 30 Jan 2020 | | Publication of 2019 Report & Accounts | RNS |
| 23/01/20 | 07:00:05 | 23 Jan 2020 | | Material Contract Award | RNS |
| 04/12/19 | 10:50:55 | 4 Dec 2019 | | Holding(s) in Company | RNS |
| 24/10/19 | 08:00:05 | 24 Oct 2019 | | Post year end trading update | RNS |
| 11/10/19 | 09:17:19 | 11 Oct 2019 | | Holding(s) in Company | RNS |
| 10/10/19 | 10:41:44 | 10 Oct 2019 | | Holding(s) in Company | RNS |
| 30/09/19 | 14:48:44 | 30 Sept 2019 | | TR-1: Notification of major holdings | RNS |
| 23/09/19 | 12:21:40 | 23 Sept 2019 | | Holding(s) in Company | RNS |
| 28/06/19 | 08:00:02 | 28 Jun 2019 | | Interim Results | RNS |
| 17/05/19 | 13:39:15 | 17 May 2019 | | Grant of Options and Warrants | RNS |
| 14/03/19 | 10:42:21 | 14 Mar 2019 | | Director/PDMR Shareholding | RNS |
| 13/03/19 | 17:08:54 | 13 Mar 2019 | | Director/PDMR Shareholding | RNS |
| 12/03/19 | 12:30:04 | 12 Mar 2019 | | Result of AGM | RNS |
| 08/03/19 | 07:00:04 | 8 Mar 2019 | | Directorate Change | RNS |
| 06/03/19 | 13:13:11 | 6 Mar 2019 | | TR-1: Notification of major holdings | RNS |
| 21/02/19 | 15:39:52 | 21 Feb 2019 | | Notice of AGM - Clarification | RNS |
| 18/02/19 | 07:00:08 | 18 Feb 2019 | | Senior Management Appointment | RNS |
| 15/02/19 | 07:00:02 | 15 Feb 2019 | | Final Results | RNS |
| 18/01/19 | 13:08:11 | 18 Jan 2019 | | Board Change | RNS |
| 20/12/18 | 14:43:29 | 20 Dec 2018 | | TR-1: Notification of major holdings | RNS |
| 27/11/18 | 13:01:21 | 27 Nov 2018 | | Update | RNS |
| 01/11/18 | 07:00:06 | 1 Nov 2018 | | Directorate Change | RNS |
| 14/08/18 | 08:00:03 | 14 Aug 2018 | | Placing to raise £420k; Notice of General Meeting | RNS |
| 22/06/18 | 08:00:03 | 22 Jun 2018 | | INTERIM RESULTS FOR 6 MONTHS ENDED 31 MARCH 2018 | RNS |
| 24/05/18 | 15:54:55 | 24 May 2018 | | Change of Registered Office | RNS |
| 22/05/18 | 14:40:05 | 22 May 2018 | | Addl contract with major highways construction co | RNS |
| 02/05/18 | 08:00:13 | 2 May 2018 | | Appointment of Interim Head of Operations | RNS |
| 18/04/18 | 08:00:03 | 18 Apr 2018 | | Withdrawal of AGM Resolution | RNS |
| 11/04/18 | 08:00:01 | 11 Apr 2018 | | Holding(s) in Company | RNS |
| 06/04/18 | 09:45:15 | 6 Apr 2018 | | Directorate Change | RNS |
| 28/03/18 | 14:49:58 | 28 Mar 2018 | | Directorate Change | RNS |
| 27/03/18 | 08:00:02 | 27 Mar 2018 | | Final Results | RNS |
| 02/03/18 | 07:00:04 | 2 Mar 2018 | | Additional Contract win with Major LondonHospital | RNS |
| 13/02/18 | 07:00:04 | 13 Feb 2018 | | Directorate Change | RNS |
| 24/01/18 | 16:08:10 | 24 Jan 2018 | | Appointment of Joint Broker | RNS |
| 17/01/18 | 14:56:49 | 17 Jan 2018 | | TR-1:Notification of major holdings | RNS |
| 16/01/18 | 17:06:32 | 16 Jan 2018 | | Holding(s) in Company | RNS |
