BidSkim
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Service market

Ground investigation contracts

UK public sector · 105 contracts awarded in the 12 months to 6 October 2026

Covering 600+ buyer portals · 5 years of records · Updated 6 October 2026 · How we count

Contracts awarded
105
Last 12 months
Median contract
£88k
Recorded value
Recorded value
£60.7m
99 of 105 main-service contracts have a published value
Buyers
45
Suppliers
46

BidSkim assigns contracts to services from the notice text. How services are assigned

What stands out

  • The five suppliers that won the most ground investigation contracts took 39% of them (41 of 105).
  • The median contract, £88k, is 36% below the median across construction & trades contracts (£139k).
  • South East had the most contracts: 27, or 26% of the total.

Who buys ground investigation

By contracts awarded, the 12 months to 6 October 2026.

  1. 1Highways England37 contracts
  2. 2Environment Agency5 contracts
  3. 3The Coal Authority4 contracts
  4. 4Canterbury City Council3 contracts
  5. 5Nuclear Restoration Services3 contracts
  6. 6Hampshire County Council3 contracts
  7. 7Tees Valley Combined Authority2 contracts
  8. 8Westminster City Council2 contracts
  9. 9London Borough of Hackney2 contracts
  10. 10UK Parliament2 contracts

Top ground investigation contractors by contracts won

The 12 months to 6 October 2026.

  1. 1BAM Nuttall13 contracts
  2. 2Arcadis10 contracts
  3. 3Tetra Tech8 contracts
  4. 4Van Elle Limited5 contracts
  5. 5Solmek Limited5 contracts
  6. 6WSP3 contracts
  7. 7Lustre Consulting Limited3 contracts
  8. 8Structural Soils Limited3 contracts
  9. 9BAM3 contracts
  10. 10Rocon Contractors3 contracts

Latest and largest awards

Each links to the official notice.

Latest

Largest

Contracts awarded by quarter

24Q4 2025*30Q1 202624Q2 202627Q3 20260Q4 2026*
* part quarter

Where the contracts were awarded

England 92 · Scotland 6 · Wales 6 · Northern Ireland 1

South East27London12South West10North East9North West6East Midlands6Wales6Scotland6East of England4West Midlands3Yorkshire and The Humber1Northern Ireland1UK-wide or not stated14

What is included

Intrusive site investigation fieldwork on land and over water, such as boreholes, trial pits, CPT, sampling and testing, with factual reporting.

  • Intrusive ground investigation surveys
  • Marine and land ground investigation
  • Geotechnical and environmental sampling and testing
  • Site investigation for structures and sign schemes
  • Ground investigation for rail earthworks

What is not included

  • Interpretive geotechnical design (another industry: consulting-accountancy)
  • Settlement monitoring and land surveys (another industry: consulting-accountancy)
  • Land hazard inspections within works (con.civils.retaining-walls-slopes)

Often bought by the same buyers