DP consulting has previously worked with the following rail companies;

Greater Anglia (2011 and 2015)

Abellio Franchise (2014),

 East Coast Franchise (2014),

Northern (2015),

 London Overground (2015),

 West Midlands (2016).

 Lanrod Eireann ( Irish Rail) ( 2018)

DP consulting currently works with the following rail companies,

Govia Thameslink Railway which owns Southern, Thameslink, Great Northern and Gatwick Express franchises.

Southeastern franchise including the High-Speed 1 service . DP Consulting carries out mystery shopping in the following counties, London Greater London, Hertfordshire, Bedfordshire, Kent, Surrey East Sussex, West Sussex Suffolk Cambridgeshire North Hampshire and Buckinghamshire