Source: https://tendernation.io/suppliers/black-diamond-security Supplier profile # BLACK DIAMOND SECURITY LTD Public sector contracts won, from published award notices SME[Companies House 07367704](https://find-and-update.company-information.service.gov.uk/company/07367704) [ Follow competitor](/login "Sign in to follow competitors")[ Compete for this work](/register) Contracts won 7 since 21 Nov 2018 Total awarded £1,750,000 where values were published Buyers 6 public bodies Latest win 19 Aug 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. - [CA13538 - Security Staffing and Associated Services](https://tendernation.io/opportunities/01a13ce8-46d1-729d-8805-da0f50014182/ca13538-security-staffing-and-associated-services)[Crescent Purchasing Consortium Limited](https://tendernation.io/buyers/crescent-purchasing-consortium-limited) Value not counted: framework or estimated ceiling Ends 13 Aug 2027 ## Recent contract awards - [UVDB Powered by Achilles QUDM for Goods, Works and Services](https://tendernation.io/opportunities/01a13bcb-b64e-713c-bee2-314cc6e09df2/uvdb-powered-by-achilles-qudm-for-goods-works-and-services)[Affinity Water Limited](https://tendernation.io/buyers/affinity-water-limited) Value not published 19 Aug 2026 - [Southern Region Strategic Crime Intelligence, Security and Welfare Service](https://tendernation.io/opportunities/01a13bdf-9650-7315-8f08-b7b8af97a282/southern-region-strategic-crime-intelligence-security-and-welfare-service)[Network Rail Infrastructure Ltd](https://tendernation.io/buyers/network-rail-infrastructure-ltd) Value not counted: framework or estimated ceiling 18 May 2026 - [Astrea 2026 cleaning services framework - AWARD](https://tendernation.io/opportunities/01a13d20-0b8d-73ac-839a-d97b620490ab/astrea-2026-cleaning-services-framework-award)[Astrea Academy Trust](https://tendernation.io/buyers/astrea-academy-trust) Value not published 8 May 2026 - [Provision of Security Services](https://tendernation.io/opportunities/01a13bb2-dc16-7234-9b9c-0d0294b365d9/provision-of-security-services)[City of Doncaster Council](https://tendernation.io/buyers/city-of-doncaster-council) £1,750,000 13 Jan 2025 - [CA13538 - Security Staffing and Associated Services](https://tendernation.io/opportunities/01a13ce8-46d1-729d-8805-da0f50014182/ca13538-security-staffing-and-associated-services)[Crescent Purchasing Consortium Limited](https://tendernation.io/buyers/crescent-purchasing-consortium-limited) Value not counted: framework or estimated ceiling 2 Sept 2024 - [CA13538 - Security Staffing and Associated Services](https://tendernation.io/opportunities/01a13ce8-46d1-729d-8805-da0f50014182/ca13538-security-staffing-and-associated-services)[Crescent Purchasing Consortium Limited](https://tendernation.io/buyers/crescent-purchasing-consortium-limited) Value not counted: framework or estimated ceiling 21 Aug 2024 - [CA13538 - Security Staffing and Associated Services](https://tendernation.io/opportunities/01a13ce8-46d1-729d-8805-da0f50014182/ca13538-security-staffing-and-associated-services)[Crescent Purchasing Consortium Limited](https://tendernation.io/buyers/crescent-purchasing-consortium-limited) Value not counted: framework or estimated ceiling 21 Aug 2024 - [CA13538 - Security Staffing and Associated Services](https://tendernation.io/opportunities/01a13ce8-46d1-729d-8805-da0f50014182/ca13538-security-staffing-and-associated-services)[Crescent Purchasing Consortium Limited](https://tendernation.io/buyers/crescent-purchasing-consortium-limited) Value not counted: framework or estimated ceiling 21 Aug 2024 - [Security Staffing and Associated Services](https://tendernation.io/opportunities/01a13ba8-a2a0-707f-850c-dd88ac03250c/security-staffing-and-associated-services)[Crescent Purchasing Consortium Limited](https://tendernation.io/buyers/crescent-purchasing-consortium-limited) Value not counted: framework or estimated ceiling 21 Aug 2024 - [Security Staffing and Associated Services](https://tendernation.io/opportunities/01a13ba8-a2a0-707f-850c-dd88ac03250c/security-staffing-and-associated-services)[Crescent Purchasing Consortium Limited](https://tendernation.io/buyers/crescent-purchasing-consortium-limited) Value not counted: framework or estimated ceiling 21 Aug 2024 - [CA13538 - Security Staffing and Associated Services](https://tendernation.io/opportunities/01a13ce8-46d1-729d-8805-da0f50014182/ca13538-security-staffing-and-associated-services)[Crescent Purchasing Consortium Limited](https://tendernation.io/buyers/crescent-purchasing-consortium-limited) Value not counted: framework or estimated ceiling 21 Aug 2024 - [CA13538 - Security Staffing and Associated Services](https://tendernation.io/opportunities/01a13ce8-46d1-729d-8805-da0f50014182/ca13538-security-staffing-and-associated-services)[Crescent Purchasing Consortium Limited](https://tendernation.io/buyers/crescent-purchasing-consortium-limited) Value not counted: framework or estimated ceiling 21 Aug 2024 - [CA13538 - Security Staffing and Associated Services](https://tendernation.io/opportunities/01a13ce8-46d1-729d-8805-da0f50014182/ca13538-security-staffing-and-associated-services)[Crescent Purchasing Consortium Limited](https://tendernation.io/buyers/crescent-purchasing-consortium-limited) Value not counted: framework or estimated ceiling 21 Aug 2024 - [Framework Agreement for the Provision of Overhead Line Engineering (OLE) Works](http://ted.europa.eu/udl?uri=TED:NOTICE:513614-2018:TEXT:EN:HTML)[Rail for London (Infrastructure) Ltd](https://tendernation.io/buyers/rail-for-london-infrastructure-ltd) Value not counted: framework or estimated ceiling 21 Nov 2018 ## Companies House StatusActive Incorporated7 Sept 2010 (16 yrs) AccountsTotal exemption full IndustryPrivate security activities [View filing history](https://find-and-update.company-information.service.gov.uk/company/07367704)## Who they win from - [Crescent Purchasing Consortium Limited2 wins](https://tendernation.io/buyers/crescent-purchasing-consortium-limited) - [City of Doncaster Council1 win](https://tendernation.io/buyers/city-of-doncaster-council) - [Affinity Water Limited1 win](https://tendernation.io/buyers/affinity-water-limited) - [Network Rail Infrastructure Ltd1 win](https://tendernation.io/buyers/network-rail-infrastructure-ltd) - [Astrea Academy Trust1 win](https://tendernation.io/buyers/astrea-academy-trust) - [Rail for London (Infrastructure) Ltd1 win](https://tendernation.io/buyers/rail-for-london-infrastructure-ltd) ## Bids named on award notices Bid for 3 contracts: won 1, lost 2. - [Lost: ASTREA ACADEMY TRUST](https://tendernation.io/opportunities/01a13bd1-80eb-71a2-8031-37dd7efaba42)20 May 2026 - [Lost: East Riding of Yorkshire Council](https://tendernation.io/opportunities/01a13bbc-3b83-7184-bfcb-1ca656582f0e)10 Nov 2025 Award notices have listed every bidder only since the Procurement Act (February 2025). ## What they win - [Business services](https://tendernation.io/sectors/business-services)5 - [Agriculture, farming & fishing products](https://tendernation.io/sectors/agriculture-farming-fishing)1 - [Sewage, refuse, cleaning & environmental](https://tendernation.io/sectors/sewage-refuse-cleaning-environmental)1 Competing with BLACK DIAMOND SECURITY LTD? 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