BidSkim
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Service market

Impact evaluation contracts

UK public sector · 359 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
359
Last 12 months
Median contract
£83k
Recorded value
Recorded value
£149m
343 of 351 main-service contracts have a published value
Buyers
134
Suppliers
249

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

What stands out

  • The five suppliers that won the most impact evaluation contracts took 23% of them (81 of 359).
  • Contracts awarded per quarter held steady across the period.
  • The median contract, £83k, is close to the median across consulting & accountancy contracts (£80k).

Who buys impact evaluation

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

  1. 1UK Research and Innovation (UKRI)23 contracts
  2. 2West Yorkshire Combined Authority16 contracts
  3. 3Llywodraeth Cymru / Welsh Government15 contracts
  4. 4Department for Education14 contracts
  5. 5Department for Energy Security and Net Zero (DESNZ)14 contracts
  6. 6UK Shared Business Services (UK SBS)11 contracts
  7. 7Scottish Government11 contracts
  8. 8Department for Business and Trade9 contracts
  9. 9Foreign, Commonwealth and Development Office9 contracts
  10. 10Department for Science, Innovation and Technology (DSIT)9 contracts

Top impact evaluation contractors by contracts won

The 12 months to 6 October 2026.

  1. 1Ipsos26 contracts
  2. 2Technopolis Group20 contracts
  3. 3Wavehill Ltd14 contracts
  4. 4IFF Research12 contracts
  5. 5SQW11 contracts
  6. 6G C Insight9 contracts
  7. 7Ecorys UK Ltd8 contracts
  8. 8Alma Economics8 contracts
  9. 9National Centre for Social Research6 contracts
  10. 10Verian6 contracts

Latest and largest awards

Each links to the official notice.

Latest

Largest

Contracts awarded by quarter

100Q4 2025*96Q1 202666Q2 202693Q3 20264Q4 2026*
* part quarter

Where the contracts were awarded

England 313 · Wales 27 · Scotland 16 · Northern Ireland 3

London89Yorkshire and The Humber33South West32Wales27North East19East Midlands15North West14West Midlands10South East5Northern Ireland3East of England2Scotland2UK-wide or not stated108

What is included

Independent process, impact and value for money evaluation of a programme, policy, pilot or grant fund, from evaluability assessment and theory of change to interim and final reports. Includes evaluation and learning partners who run monitoring, evaluation and learning alongside a multi-year programme.

  • Process and impact evaluation
  • Value for money and summative evaluation
  • Evaluability assessment, theory of change and evaluation plans
  • Evaluation and learning partner or critical friend roles
  • Monitoring and evaluation of funded programmes and grant schemes
  • Benefits realisation evaluation studies
  • Analysis of programme monitoring returns for evaluation

What is not included

  • Randomised and test-and-learn trials of interventions (see Behavioural insights and trials)
  • Programme assurance, gateway and delivery lessons-learned reviews (see Project assurance)
  • Service reviews with recommendations to management (see Strategy development)
  • Standalone economic impact assessment (see Cost benefit analysis)
  • Social return on investment studies (see Social value strategy and measurement)
  • Clinical audit (see Healthcare)

Often bought by the same buyers