Source: https://tendernation.io/suppliers/jt-mackley-and-00258810 Supplier profile # JT Mackley & Co. Ltd Public sector contracts won, from published award notices Large business [Companies House 00258810](https://find-and-update.company-information.service.gov.uk/company/00258810) [ Follow competitor](https://tendernation.io/login "Sign in to follow competitors") [Compete for this work](https://tendernation.io/register) Contracts won 34 since 13 Oct 2011 Total awarded £25,799,203 where values were published Buyers 14 public bodies Latest win 15 Sept 2026 ## Contracts ending soon Contracts ending in the next 18 months. Buyers usually re-tender before the end date, so these are openings for competitors. - [KSL - SE - AOMR Lot 2 - Allington Tidal Works (Phased D&B)](https://tendernation.io/opportunities/01a13d16-d753-726c-ae64-d4b8e99ae713/ksl-se-aomr-lot-2-allington-tidal-works-phased-db) [Environment Agency](https://tendernation.io/buyers/environment-agency) £136,089 Ends 20 Nov 2026 - [Stabilisation Works at Redbridge HWRC, Oxford](https://tendernation.io/opportunities/01a13d24-046b-71e8-a765-11d5eb01bbb8/stabilisation-works-at-redbridge-hwrc-oxford) [Oxfordshire County Council](https://tendernation.io/buyers/oxfordshire-county-council) £17,261 Ends 30 Nov 2026 - [Barnham Debris Screen Repairs](https://tendernation.io/opportunities/01a13d1f-6367-7292-99c4-d3a45ee41979/barnham-debris-screen-repairs) [Environment Agency](https://tendernation.io/buyers/environment-agency) £523,530 Ends 31 Dec 2026 - [MEAS Round Fields Managed Realignment Early Supplier Engagement](https://tendernation.io/opportunities/01a13d1b-4415-72f7-9b17-4614fa762c16/meas-round-fields-managed-realignment-early-supplier-engagement) [Defra](https://tendernation.io/buyers/defra) £93,050 Ends 9 Mar 2027 - [Asset Operation, Maintenance and Response Framework](https://tendernation.io/opportunities/01a13cec-5887-7270-a049-5d6ae287281c/asset-operation-maintenance-and-response-framework) [Environment Agency (Defra Group Commercial)](https://tendernation.io/buyers/environment-agency-defra-group-commercial) Value not counted: framework or estimated ceiling Ends 3 Mar 2028 ## Recent contract awards - [National Framework for Civil Engineering, Infrastructure and Enabling Works 2026](https://tendernation.io/opportunities/01a13bdc-1b18-70cb-a25a-a75f6e963b4e/national-framework-for-civil-engineering-infrastructure-and-enabling-works-2026) [YPO](https://tendernation.io/buyers/ypo) up to £4,166,666,666 (notice estimate) 15 Sept 2026 - [KSL - Nav - East Farleigh Asset Refurbishment](https://tendernation.io/opportunities/01a13d19-3a9d-7344-b6ee-44f7279a950d/ksl-nav-east-farleigh-asset-refurbishment) [Environment Agency](https://tendernation.io/buyers/environment-agency) £4,995,264 28 Jul 2026 - [Selsey West Beach Urgent Works](https://tendernation.io/opportunities/01a13be3-7b71-717b-96be-98539b2eaefd/selsey-west-beach-urgent-works) [Chichester District Council](https://tendernation.io/buyers/chichester-district-council) £739,636 9 Jul 2026 - [KSL - SE - AOMR Lot 2 - Allington Tidal Works (Phased D&B)](https://tendernation.io/opportunities/01a13d16-d753-726c-ae64-d4b8e99ae713/ksl-se-aomr-lot-2-allington-tidal-works-phased-db) [Environment Agency](https://tendernation.io/buyers/environment-agency) £136,089 2 Jun 2026 - [MEAS Round Fields Managed Realignment Early Supplier Engagement](https://tendernation.io/opportunities/01a13d1b-4415-72f7-9b17-4614fa762c16/meas-round-fields-managed-realignment-early-supplier-engagement) [Defra](https://tendernation.io/buyers/defra) £93,050 3 Mar 2026 - [KSL - AOMR - Black Sluice Recondition Programme](https://tendernation.io/opportunities/01a13d19-d163-7080-8176-212dee9007c7/ksl-aomr-black-sluice-recondition-programme) [Environment Agency](https://tendernation.io/buyers/environment-agency) £121,759 9 Jan 2026 - [SE - AOMR - Shirley Moore PS Pump Investigation](https://tendernation.io/opportunities/01a13d16-1419-71e6-a3d7-0621997e0503/se-aomr-shirley-moore-ps-pump-investigation) [Environment Agency](https://tendernation.io/buyers/environment-agency) £51,983 7 Jan 2026 - [SE - AOMR - Ferring Autoweedraker](https://tendernation.io/opportunities/01a13d0d-5557-729d-bed8-cc5c28b11c9c/se-aomr-ferring-autoweedraker) [Environment Agency](https://tendernation.io/buyers/environment-agency) £224,473 13 Nov 2025 - [Stabilisation Works at Redbridge HWRC, Oxford](https://tendernation.io/opportunities/01a13d24-046b-71e8-a765-11d5eb01bbb8/stabilisation-works-at-redbridge-hwrc-oxford) [Oxfordshire County Council](https://tendernation.io/buyers/oxfordshire-county-council) £17,261 31 Oct 2025 - [Allington Lock Building Refurbishment](https://tendernation.io/opportunities/01a13d15-0aaf-739e-af17-0accbd4e8668/allington-lock-building-refurbishment) [Defra Group Commercial](https://tendernation.io/buyers/defra-group-commercial) £300,000 25 Jun 2025 - [Barnham Debris Screen Repairs](https://tendernation.io/opportunities/01a13d1f-6367-7292-99c4-d3a45ee41979/barnham-debris-screen-repairs) [Environment Agency](https://tendernation.io/buyers/environment-agency) £523,530 10 Jun 2025 - [SE - AOMR Lot 2 - Shirley Moor Weed Rake](https://tendernation.io/opportunities/01a13d13-7ad8-7399-b3e2-917892aaff78/se-aomr-lot-2-shirley-moor-weed-rake) [Environment Agency](https://tendernation.io/buyers/environment-agency) £73,673 20 May 2025 - [SE - AOMR Lot 2 - Normans Bay Tidal Door](https://tendernation.io/opportunities/01a13d06-2b4c-7101-92a1-b214ef8f512b/se-aomr-lot-2-normans-bay-tidal-door) [Environment Agency](https://tendernation.io/buyers/environment-agency) £187,602 13 May 2025 - [SE - AOMR - SE Recondition Programme Lot 2 Package](https://tendernation.io/opportunities/01a13d06-72d1-7156-ac7f-3906960912b8/se-aomr-se-recondition-programme-lot-2-package) [Environment Agency](https://tendernation.io/buyers/environment-agency) £830,866 30 Apr 2025 - [SSD - AOMR Lot 2 - Ferring Outfall Repairs](https://tendernation.io/opportunities/01a13d09-655c-7130-ae62-d431e8ba3592/ssd-aomr-lot-2-ferring-outfall-repairs) [Environment Agency](https://tendernation.io/buyers/environment-agency) £81,280 14 Jan 2025 ## Companies House Status Active Incorporated 4 Sept 1931 (95 yrs) Accounts Full Industry Construction of other civil engineering projects n.e.c. [View filing history](https://find-and-update.company-information.service.gov.uk/company/00258810) ## Who they win from - [Environment Agency 18 wins](https://tendernation.io/buyers/environment-agency) - [Chichester District Council 2 wins](https://tendernation.io/buyers/chichester-district-council) - [Defra 2 wins](https://tendernation.io/buyers/defra) - [Fareham Borough Council 2 wins](https://tendernation.io/buyers/fareham-borough-council) - [Brighton & Hove City Council 1 win](https://tendernation.io/buyers/brighton-hove-city-council) - [Defra Group Commercial 1 win](https://tendernation.io/buyers/defra-group-commercial) - [Worthing Borough Council 1 win](https://tendernation.io/buyers/worthing-borough-council) - [Oxfordshire County Council 1 win](https://tendernation.io/buyers/oxfordshire-county-council) ## Latest accounts Profit or loss £365,613 Net assets £12,291,005 Cash £1,459,119 Employees 182 Year to 28 Dec 2025, from accounts filed at Companies House. ## Bids named on award notices Bid for 1 contract: won 0, lost 1. - [Lost: Havant Borough Council](https://tendernation.io/opportunities/01a13bce-8bfc-7171-950c-4ba0195921bf) 1 May 2026 Award notices have listed every bidder only since the Procurement Act (February 2025). ## On government frameworks - [Construction Works and Associated Services](https://tendernation.io/frameworks/RM6088)RM6088 · ends 31 Mar 2027 ## What they win - [Construction work](https://tendernation.io/sectors/construction-work) 26 - [Architecture, engineering & surveying](https://tendernation.io/sectors/architecture-engineering-surveying) 4 - [Installation services](https://tendernation.io/sectors/installation-services) 1 - [Business services](https://tendernation.io/sectors/business-services) 1 - [Construction materials & structures](https://tendernation.io/sectors/construction-materials) 1 Competing with JT Mackley & Co. 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