| 15.04.2024 14:07 | COST, HERC | Hercules Site Services joins Costain's UK-wide labour framework | Alliance |
| 11.04.2024 15:09 | WEIR, VSVS, VANQ | UK dividends calendar - next 7 days | Alliance |
| 09.04.2024 16:16 | COST | Director/PDMR Shareholding | RNS |
| 09.04.2024 13:32 | COST | Director/PDMR Shareholding | RNS |
| 09.04.2024 09:33 | COST | Annual Report and Accounts and Notice of 2024 AGM | RNS |
| 04.04.2024 09:55 | COST | Additional Listing | RNS |
| 02.04.2024 09:56 | RNWH, COST | Renew Holdings performs in line with strong demand across key markets | Alliance |
| 15.03.2024 13:07 | COST | IN BRIEF: Costain wins place on GBP4 billion carbon capture project | Alliance |
| 15.03.2024 08:30 | COST | Key Partner for Landmark Carbon Capture Project | Reach |
| 12.03.2024 12:20 | COST | Costain proposes final dividend despite profit fall as outlook rosy | Alliance |
| 12.03.2024 07:01 | COST | Directorate Change | RNS |
| 12.03.2024 07:00 | COST | 2023 Full Year Results | RNS |
| 05.03.2024 16:06 | TCAP, TIFS, SYNT | UK earnings, trading statements calendar - next 7 days | Alliance |
| 27.02.2024 12:06 | COST | Investor Presentation via Investor Meet Company | Reach |
| 12.01.2024 11:04 | WPS, WRKS, SGE | CORRECT: UK earnings, trading statements calendar - next 7 days | Alliance |
| 11.01.2024 15:53 | WPS, WRKS, SGE | UK earnings, trading statements calendar - next 7 days | Alliance |
| 10.01.2024 10:29 | COST | Costain bags Northumbria Water contract; profit to meet consensus | Alliance |
| 10.01.2024 10:16 | COST, HSW, CPI | SMALL-CAP WINNERS & LOSERS: Costain trades well; RBC cuts Capita | Alliance |
| 10.01.2024 07:00 | COST | AMP8 Water Framework Win with NWG & Trading Update | RNS |
| 02.01.2024 12:56 | COST | Block listing Interim Review | RNS |
| 01.11.2023 12:15 | COST | Total Voting Rights | RNS |
| 27.10.2023 13:00 | COST | Director/PDMR Shareholding | RNS |
| 25.10.2023 13:00 | COST | Additional Listing | RNS |
| 20.10.2023 15:44 | WIL, VIP, UTG | UK dividends calendar - next 7 days | Alliance |
| 19.10.2023 13:00 | COST | Director/PDMR Shareholding | RNS |
| 17.10.2023 07:00 | COST | Directorate Change | RNS |
| 28.09.2023 12:00 | COST | Scrip Dividend Reference Price | RNS |
| 25.09.2023 07:00 | COST | Costain and Ofwat Water Seminar | RNS |
| 14.09.2023 15:44 | XPS, WCW, VANQ | UK dividends calendar - next 7 days | Alliance |
| 13.09.2023 09:29 | DGE, INF, REL | LONDON BROKER RATINGS: Goldman Sachs likes HSBC; RBC raises CVS | Alliance |
| 08.09.2023 14:26 | COST | Block listing Interim Review | RNS |
| 06.09.2023 14:25 | COST | Director/PDMR Shareholding | RNS |
| 05.09.2023 12:10 | COST | IN BRIEF: Costain returns to dividend payments with interim payout | Alliance |
| 05.09.2023 10:21 | COST, ENQ, LUCE | SMALL-CAP WINNERS & LOSERS: EnQuest posts weaker first-half results | Alliance |
| 05.09.2023 07:00 | COST | Dividend Declaration | RNS |
| 25.08.2023 09:57 | MARS, COST, PDL | SMALL-CAP WINNERS & LOSERS: Petra Diamonds rises after first tender | Alliance |
| 23.08.2023 10:16 | OIG, HOC, COST | SMALL-CAP WINNERS & LOSERS: Costain considers resuming dividend | Alliance |
| 23.08.2023 09:16 | COST | Costain eyes return to dividends after 4-years amid steady first half | Alliance |
| 23.08.2023 07:00 | COST | Results for the six months ended 30 June 2023 | RNS |
| 16.08.2023 15:46 | COST, ANG | UK earnings, trading statements calendar - next 7 days | Alliance |
| 16.08.2023 10:00 | COST | Interim Results Investor Q&A | RNS |
| 26.07.2023 21:46 | TRAF, APTA, TRAC | TRADING UPDATES: Van Elle profit rises; Costain financing pact | Alliance |
| 26.07.2023 07:00 | COST | Costain Refinancing of Bank and Bonding Facilities | RNS |
| 17.07.2023 11:56 | COST | Costain and United Utilities management deal extended by two years | Alliance |
| 17.07.2023 09:55 | COST, TLW, KMR | SMALL-CAP WINNERS & LOSERS: Costain rises on contract extension | Alliance |
| 17.07.2023 07:00 | COST | Costain Announces Key Contract Extension | RNS |
| 30.06.2023 14:07 | MBH, COST, INHC | TRADING UPDATES: Pendragon quarterly trading momentum maintained | Alliance |
| 30.06.2023 07:00 | COST | New Payment Plan with Pension Scheme Trustee | RNS |
| 22.06.2023 12:03 | COST | Costain wins share of GBP485 million nuclear decommissioning framework | Alliance |
| 22.06.2023 10:38 | COST | Costain Appointed Magnox Decommissioning Framework | Reach |
| 09.06.2023 10:29 | COST, AMGO | SMALL-CAP WINNERS & LOSERS: Amigo jumps; Costain up after slump | Alliance |
| 08.06.2023 16:43 | COST | Costain dropped from National Highways' A66 project | Alliance |
| 08.06.2023 16:17 | COST | Update Regarding A66 Project | RNS |
| 11.05.2023 16:49 | COST | Result of AGM | RNS |
| 11.05.2023 16:12 | COST | IN BRIEF: Costain trading as expected; confident in long-term strategy | Alliance |
| 04.05.2023 16:11 | WPS, VID, UPR | UK shareholder meetings calendar - next 7 days | Alliance |
| 20.04.2023 09:40 | COST | External Appointment | RNS |
| 06.04.2023 14:29 | COST | Grant of Share Plan Awards | RNS |
| 06.04.2023 11:51 | COST | Holding(s) in Company | RNS |
| 04.04.2023 10:33 | COST | Notice of AGM and Annual Report and Accounts | RNS |
| 30.03.2023 12:58 | COST | Long Term Incentive Plan - Listing Application | RNS |
| 28.03.2023 13:50 | COST | IN BRIEF: Holders Technology taps ex-TFL executive as finance chief | Alliance |
| 14.03.2023 12:00 | COST | Costain sees revenue improve and returns to annual profit in 2022, | Alliance |
| 14.03.2023 10:19 | HARL, SBRE, COST | SMALL-CAP WINNERS & LOSERS: Costain revenue up; Sabre hit by inflation | Alliance |
| 14.03.2023 07:00 | COST | Results For The Year Ended 31 December 2022 | RNS |
| 07.03.2023 15:44 | VINO, TCAP, SMS | UK earnings, trading statements calendar - next 7 days | Alliance |
| 30.01.2023 16:35 | COST | Price Monitoring Extension | RNS |
| 03.01.2023 13:09 | COST | Block Listing Six Monthly Return | RNS |
| 21.12.2022 12:47 | COST | Director/PDMR Shareholding | RNS |
| 29.11.2022 14:43 | COST | Costain and Heathrow Airport partner on net-zero investment | Alliance |
| 29.11.2022 07:00 | COST | Costain Partners with Heathrow Airport | RNS |
| 21.11.2022 17:47 | COST | IN BRIEF: Costain completes one year extension of banking facilities | Alliance |
| 21.11.2022 14:56 | COST | Costain completes one-year bank debt and bonding facilities extension | Alliance |
| 21.11.2022 07:00 | COST | Extension of Bank Debt and Bonding Facilities | Reach |
| 01.11.2022 16:42 | COST | Director/PDMR Shareholding | RNS |
