{
  "api": "assay-systems/v1",
  "key_tier": "none",
  "retrieved": "2026-10-16T03:23:42Z",
  "source": "Assay Systems register, https://assay-systems.com/register/",
  "access_notice": "On 15 November 2026, automated access to assay-systems.com closes. After that date, access is available only under a paid annual subscription contract. Contact: contact@assay-systems.com",
  "data": {
    "id": "ASY-UK-0R23N3M0WG",
    "type": "page",
    "country": "uk",
    "name": "Transport for London : suppliers in the Contracts Finder register",
    "url": "https://assay-systems.com/register/uk/buyer/transport-for-london/",
    "summary": "Who supplies Transport for London: the suppliers the Contracts Finder register records for it and the lines it buys.",
    "text": [
      "The suppliers the Contracts Finder register records as having sold to Transport for London , and the lines it buys. A name with a link opens what the register holds for that supplier; a line opens every supplier in it.",
      "For each line this buyer buys, the extract names every award notice it placed, the supplier, the value where one is disclosed, and the notices behind every figure."
    ],
    "records": [
      {
        "name": "all buyers",
        "url": "https://assay-systems.com/register/uk/buyer/"
      },
      {
        "name": "all lines",
        "url": "https://assay-systems.com/register/uk/"
      },
      {
        "name": "administration services",
        "url": "https://assay-systems.com/register/uk/line/administration-services/"
      },
      {
        "name": "advertising and marketing services",
        "url": "https://assay-systems.com/register/uk/line/advertising-and-marketing-services/"
      },
      {
        "name": "advertising services",
        "url": "https://assay-systems.com/register/uk/line/advertising-services/"
      },
      {
        "name": "architectural and related services",
        "url": "https://assay-systems.com/register/uk/line/architectural-and-related-services/"
      },
      {
        "name": "building and facilities management services",
        "url": "https://assay-systems.com/register/uk/line/building-and-facilities-management-services/"
      },
      {
        "name": "building consultancy services",
        "url": "https://assay-systems.com/register/uk/line/building-consultancy-services/"
      },
      {
        "name": "building installation work",
        "url": "https://assay-systems.com/register/uk/line/building-installation-work/"
      },
      {
        "name": "business and management consultancy and related services",
        "url": "https://assay-systems.com/register/uk/line/business-and-management-consultancy-and-related-services/"
      },
      {
        "name": "business and management consultancy services",
        "url": "https://assay-systems.com/register/uk/line/business-and-management-consultancy-services/"
      },
      {
        "name": "business transaction and personal business software package",
        "url": "https://assay-systems.com/register/uk/line/business-transaction-and-personal-business-software-package/"
      },
      {
        "name": "civil engineering consultancy services",
        "url": "https://assay-systems.com/register/uk/line/civil-engineering-consultancy-services/"
      },
      {
        "name": "construction work",
        "url": "https://assay-systems.com/register/uk/line/construction-work/"
      },
      {
        "name": "data services",
        "url": "https://assay-systems.com/register/uk/line/data-services/"
      },
      {
        "name": "education and training services",
        "url": "https://assay-systems.com/register/uk/line/education-and-training-services/"
      },
      {
        "name": "electrical installation work",
        "url": "https://assay-systems.com/register/uk/line/electrical-installation-work/"
      },
      {
        "name": "electricity",
        "url": "https://assay-systems.com/register/uk/line/electricity/"
      },
      {
        "name": "electricity, heating, solar and nuclear energy",
        "url": "https://assay-systems.com/register/uk/line/electricity-heating-solar-and-nuclear-energy/"
      },
      {
        "name": "energy and related services",
        "url": "https://assay-systems.com/register/uk/line/energy-and-related-services/"
      },
      {
        "name": "engineering services",
        "url": "https://assay-systems.com/register/uk/line/engineering-services/"
      },
      {
        "name": "environmental services",
        "url": "https://assay-systems.com/register/uk/line/environmental-services/"
      },
      {
        "name": "evaluation consultancy services",
        "url": "https://assay-systems.com/register/uk/line/evaluation-consultancy-services/"
      },
      {
        "name": "fencing, railing and safety equipment installation work",
        "url": "https://assay-systems.com/register/uk/line/fencing-railing-and-safety-equipment-installation-work/"
      },
      {
        "name": "financial consultancy services",
        "url": "https://assay-systems.com/register/uk/line/financial-consultancy-services/"
      },
      {
        "name": "fire-prevention services",
        "url": "https://assay-systems.com/register/uk/line/fire-prevention-services/"
      },
      {
        "name": "fuels",
        "url": "https://assay-systems.com/register/uk/line/fuels/"
      },
      {
        "name": "gaseous fuels",
        "url": "https://assay-systems.com/register/uk/line/gaseous-fuels/"
      },
      {
        "name": "geological, geophysical and other scientific prospecting services",
        "url": "https://assay-systems.com/register/uk/line/geological-geophysical-and-other-scientific-prospecting-services/"
      },
      {
        "name": "health and social work services",
        "url": "https://assay-systems.com/register/uk/line/health-and-social-work-services/"
      },
      {
        "name": "health services",
        "url": "https://assay-systems.com/register/uk/line/health-services/"
      },
      {
        "name": "housing services",
        "url": "https://assay-systems.com/register/uk/line/housing-services/"
      },
      {
        "name": "industrial machinery",
        "url": "https://assay-systems.com/register/uk/line/industrial-machinery/"
      },
      {
        "name": "information systems or technology strategic review and planning services",
        "url": "https://assay-systems.com/register/uk/line/information-systems-or-technology-strategic-review-and-planning-services/"
      },
      {
        "name": "information technology services",
        "url": "https://assay-systems.com/register/uk/line/information-technology-services/"
      },
      {
        "name": "it services: consulting, software development, internet and support",
        "url": "https://assay-systems.com/register/uk/line/it-services-consulting-software-development-internet-and-support/"
      },
      {
        "name": "market research services",
        "url": "https://assay-systems.com/register/uk/line/market-research-services/"
      },
      {
        "name": "motor vehicles",
        "url": "https://assay-systems.com/register/uk/line/motor-vehicles/"
      },
      {
        "name": "office machinery, equipment and supplies except computers, printers and furniture",
        "url": "https://assay-systems.com/register/uk/line/office-machinery-equipment-and-supplies-except-computers-printers-and-furniture/"
      },
      {
        "name": "printing and related services",
        "url": "https://assay-systems.com/register/uk/line/printing-and-related-services/"
      },
      {
        "name": "procurement software package",
        "url": "https://assay-systems.com/register/uk/line/procurement-software-package/"
      },
      {
        "name": "property management services of real estate on a fee or contract basis",
        "url": "https://assay-systems.com/register/uk/line/property-management-services-of-real-estate-on-a-fee-or-contract-basis/"
      },
      {
        "name": "public road transport services",
        "url": "https://assay-systems.com/register/uk/line/public-road-transport-services/"
      },
      {
        "name": "public utilities",
        "url": "https://assay-systems.com/register/uk/line/public-utilities/"
      },
      {
        "name": "real estate agency services on a fee or contract basis",
        "url": "https://assay-systems.com/register/uk/line/real-estate-agency-services-on-a-fee-or-contract-basis/"
      },
      {
        "name": "recruitment services",
        "url": "https://assay-systems.com/register/uk/line/recruitment-services/"
      },
      {
        "name": "repair and maintenance services",
        "url": "https://assay-systems.com/register/uk/line/repair-and-maintenance-services/"
      },
      {
        "name": "repair, maintenance and associated services related to aircraft, railways, roads and marine equipment",
        "url": "https://assay-systems.com/register/uk/line/repair-maintenance-and-associated-services-related-to-aircraft-railways-roads-and-marine-equipment/"
      },
      {
        "name": "research and development consultancy services",
        "url": "https://assay-systems.com/register/uk/line/research-and-development-consultancy-services/"
      },
      {
        "name": "research services",
        "url": "https://assay-systems.com/register/uk/line/research-services/"
      },
      {
        "name": "road transport services",
        "url": "https://assay-systems.com/register/uk/line/road-transport-services/"
      },
      {
        "name": "software programming and consultancy services",
        "url": "https://assay-systems.com/register/uk/line/software-programming-and-consultancy-services/"
      },
      {
        "name": "software-related services",
        "url": "https://assay-systems.com/register/uk/line/software-related-services/"
      },
      {
        "name": "subscription services",
        "url": "https://assay-systems.com/register/uk/line/subscription-services/"
      },
      {
        "name": "survey services",
        "url": "https://assay-systems.com/register/uk/line/survey-services/"
      },
      {
        "name": "systems and technical consultancy services",
        "url": "https://assay-systems.com/register/uk/line/systems-and-technical-consultancy-services/"
      },
      {
        "name": "technical services",
        "url": "https://assay-systems.com/register/uk/line/technical-services/"
      },
      {
        "name": "technical support services",
        "url": "https://assay-systems.com/register/uk/line/technical-support-services/"
      },
      {
        "name": "technical testing, analysis and consultancy services",
        "url": "https://assay-systems.com/register/uk/line/technical-testing-analysis-and-consultancy-services/"
      },
      {
        "name": "training services",
        "url": "https://assay-systems.com/register/uk/line/training-services/"
      },
      {
        "name": "transport services (excl. waste transport)",
        "url": "https://assay-systems.com/register/uk/line/transport-services-excl-waste-transport/"
      },
      {
        "name": "Aecom",
        "url": "https://assay-systems.com/register/uk/aecom/"
      },
      {
        "name": "Anglian Water Business",
        "url": "https://assay-systems.com/register/uk/anglian-water-business/"
      },
      {
        "name": "Arcadis Consulting",
        "url": "https://assay-systems.com/register/uk/arcadis-consulting/"
      },
      {
        "name": "Arriva London North",
        "url": "https://assay-systems.com/register/uk/arriva-london-north/"
      },
      {
        "name": "Atkins",
        "url": "https://assay-systems.com/register/uk/atkins/"
      },
      {
        "name": "Bravosolution",
        "url": "https://assay-systems.com/register/uk/bravosolution/"
      },
      {
        "name": "Currie & Brown",
        "url": "https://assay-systems.com/register/uk/currie-brown/"
      },
      {
        "name": "Dyer & Butler",
        "url": "https://assay-systems.com/register/uk/dyer-butler/"
      },
      {
        "name": "EDF Energy",
        "url": "https://assay-systems.com/register/uk/edf-energy/"
      },
      {
        "name": "EDF Energy Customers",
        "url": "https://assay-systems.com/register/uk/edf-energy-customers/"
      },
      {
        "name": "Everwarm",
        "url": "https://assay-systems.com/register/uk/everwarm/"
      },
      {
        "name": "Insight Executive",
        "url": "https://assay-systems.com/register/uk/insight-executive/"
      },
      {
        "name": "Investigo",
        "url": "https://assay-systems.com/register/uk/investigo/"
      },
      {
        "name": "Kantar Public",
        "url": "https://assay-systems.com/register/uk/kantar-public/"
      },
      {
        "name": "KORN Ferry",
        "url": "https://assay-systems.com/register/uk/korn-ferry/"
      },
      {
        "name": "London United",
        "url": "https://assay-systems.com/register/uk/london-united/"
      },
      {
        "name": "Mace Consult",
        "url": "https://assay-systems.com/register/uk/mace-consult/"
      },
      {
        "name": "Medigold Health Consultancy",
        "url": "https://assay-systems.com/register/uk/medigold-health-consultancy/"
      },
      {
        "name": "Metroline",
        "url": "https://assay-systems.com/register/uk/metroline/"
      },
      {
        "name": "Mott MacDonald",
        "url": "https://assay-systems.com/register/uk/mott-macdonald/"
      },
      {
        "name": "Nathaniel Lichfield & Partners",
        "url": "https://assay-systems.com/register/uk/nathaniel-lichfield-partners/"
      },
      {
        "name": "Ove Arup & Partners",
        "url": "https://assay-systems.com/register/uk/ove-arup-partners/"
      },
      {
        "name": "Penna",
        "url": "https://assay-systems.com/register/uk/penna/"
      },
      {
        "name": "Ramboll",
        "url": "https://assay-systems.com/register/uk/ramboll/"
      },
      {
        "name": "REED Specialist Recruitment",
        "url": "https://assay-systems.com/register/uk/reed-specialist-recruitment/"
      },
      {
        "name": "Specialist Computer Centres",
        "url": "https://assay-systems.com/register/uk/specialist-computer-centres/"
      },
      {
        "name": "Stagecoach East London",
        "url": "https://assay-systems.com/register/uk/stagecoach-east-london/"
      },
      {
        "name": "Systra",
        "url": "https://assay-systems.com/register/uk/systra/"
      },
      {
        "name": "TotalEnergies Gas & Power",
        "url": "https://assay-systems.com/register/uk/totalenergies-gas-power/"
      },
      {
        "name": "UCL Consultants",
        "url": "https://assay-systems.com/register/uk/ucl-consultants/"
      },
      {
        "name": "Vital Energi Utilities",
        "url": "https://assay-systems.com/register/uk/vital-energi-utilities/"
      }
    ],
    "assay_record": "ASY-UK-0R23N3M0WG",
    "cite_as": "Assay Systems, \"Transport for London : suppliers in the Contracts Finder register\", https://assay-systems.com/register/uk/buyer/transport-for-london/"
  }
}