Full list of companies targeted by OFT

The 112 firms below have ten weeks to defend themselves against allegations before the OFT decides whether or not competition law has been broken. If they cannot defend themselves against the allegations they may be fined up to 10% of their annual turnover.

The firms listed by the OFT are:

A. H. Willis & Sons

ARG (Mansfield)

Ackroyd & Abbott together with its subsidiary Ackroyd & Abbott Construction

Adam Eastwood & Sons together with its controlling party the Sir John Eastwood Foundation

Admiral Construction together with (for alleged infringements from 31 October 2003) its ultimate parent company A C Holdings

Adonis Construction

Allenbuild and Bullock Construction together with their ultimate parent company Renew Holdings plc

Apollo Property Services Group formerly known as Apollo London together with its former ultimate parent company Apollo Holdco formerly known as Apollo Group Holdings

Arthur M. Griffiths & Sons

B & A Construction (Leicester)

Baggaley & Jenkins

Balfour Beatty Construction , Balfour Beatty Refurbishment , and Balfour Beatty Group (for alleged infringements from 2000 onwards) and Mansell Construction Services (for alleged infringements from 19 December 2003), together with their current ultimate parent company Balfour Beatty plc. For alleged infringements involving Mansell prior to 19 December 2003, Mansell and its former ultimate parent company Mansell plc

Ballast Nedam N.V. as the ultimate parent company of its dissolved subsidiary Ballast plc

Beaufort Construction (S-in-A) together with its ultimate parent company Beaufort Holdings U.K.

Bodill & Sons (Contractors)

Bowmer & Kirkland together with its subsidiaries B & K Building Services and B & K Property Services

Bramall Construction and Frank Haslam Milan & Company together with their current ultimate parent company Keepmoat , formerly known as Keepmoat plc

C. J. Ellmore & Company

Caddick Construction together with its ultimate parent company Caddick Group plc

Carillion

Chase Norton Construction together with its ultimate parent company Chase Midland plc

Clegg Construction together with its ultimate parent company Clegg Group formerly known as D E Clegg Holdings

Connaught Partnerships together with its ultimate parent company Connaught plc

Crown Point Maintenance Group as the ultimate parent company of its dissolved subsidiary Greenwood Building Contractors (Mansfield) , for Greenwood's alleged infringements after 11 June 2002

Davlyn Construction

Derwent Valley Construction together with its ultimate parent company Chevin Holdings

Dukeries Building Company together with its ultimate parent company Gavco 159

Durkan Pudelek together with its ultimate parent company Durkan Holdings

E. G. Carter & Company

E. Manton

E. Taylor & Sons (Southwell) , trading as Carmalor Construction

F. Parkinson together with its ultimate parent company Mowbray Holdings

Francis Construction together with its ultimate parent company Barrett Estates Services

Frank Galliers together with its former ultimate parent company Frank Galliers Holdings

Frudd Construction

GAJ Construction together with its current ultimate parent company GAJ (Holdings)

G Carter Construction

G. F. Tomlinson Building together with its ultimate parent company G. F. Tomlinson Group

G G Middleton and Sons

G. & J. Seddon together with its ultimate parent company Seddon Group

GMI Construction Group plc together with (for alleged infringements after 6 February 2005) its current ultimate parent company GMI Construction Holdings plc

Geo Houlton & Sons together with its ultimate parent company Geo Houlton & Sons (Holdings)

George Law together with its ultimate parent company Bosworth & Wakeford

Greswolde Construction together with its ultimate parent company Mantisson

Hall Construction Group

Harlow & Milner

Harold Adkin & Sons (Sutton-In-Ashfield)

Harper Group Construction and J. Harper & Sons (Leominster) together with their ultimate parent company Harper Group plc

Haymills (Contractors) together with (for alleged infringements prior to 26 May 2004) its former ultimate parent company Corringway Conclusions plc and (for alleged infringements after 26 May 2004) its current ultimate parent company Haymills Group

Henry Boot Construction (UK) together with its ultimate parent company Henry Boot plc

Herbert Baggaley Construction together with its ultimate parent company Baggaley Group

Hill Bros. (Nottingham)

Hobson & Porter

Holroyd Construction together with (for alleged infringements prior to 30 March 2005) its former ultimate parent company Holderness Investments and (for alleged infringements after 30 March 2005) its current ultimate parent company Holroyd Construction Group

Interclass Public Company together with its ultimate parent company Interclass Holdings

Interserve Project Services together with its ultimate parent company Interserve plc

Irwins and Jack Lunn (Construction) together with their ultimate parent company Jack Lunn (Holdings)

J. Guest

J H Hallam (Contracts) together with its ultimate parent company J H Hallam (R & J)

J. J. & A. R. Jackson

J. J. McGinley, together with its former ultimate parent company McGinley Holdings

John Cawley

John Sisk & Son together with its ultimate parent company Sicon

K. J. Bryan (Builders)

Kier Regional together with its ultimate parent company Kier Group plc

Lemmeleg together with its ultimate parent company Rok plc

Lindum Construction Co. and Lindum Homes together with their ultimate parent company Lindum Group

Linford Group together with its ultimate parent company F. & E. V. Linford

Loach Construction & Development

Lotus Construction

Milward Construction (Belper)

Morgan Ashurt plc formerly known as Bluestone Plc together with its ultimate parent company Morgan Sindall plc

North Midland Construction plc

P D H Developments (formerly trading as G. Hurst & Sons (Contractors) ) together with its ultimate parent company G. Hurst & Sons

P. Casey & Co. together with its current ultimate parent company The Casey Group

P. Waller

Pearce Construction (Midlands) together with its former ultimate parent company Crest Nicholson plc

Peter Baines

Phoenix Contracts (Leicester)

Piper Construction Midlands together with its ultimate parent company Piper Securities Holdings

Propencity Group together with its wholly owned subsidiary companies, ISG Jackson , ISG Regions formerly known as ISG Totty , ISG Totty Building and Propencity

Quarmby Construction Company together with its ultimate parent company St James Securities Holdings

Quarmby Construction (Special Projects) together with its ultimate parent company Justgrade

R Durtnell & Sons together with its ultimate parent company R Durtnell & Sons (Holdings)

R. G. Carter , R. G. Carter Building and R. G. Carter Construction together with their current ultimate parent company R. G. Carter Holdings

Richardson Projects

Robert Bruce Construction

Robert Woodhead together with its ultimate parent company Robert Woodhead Holdings

Robinson & Sawdon

Shaylor Construction

Simons Construction and Wrights Construction (Lincoln) together with their ultimate parent company Simons Group

Sol Construction together with its ultimate parent company Barkbury

Speller-Metcalfe

Spicers (Builders)

Stainforth Construction

Strata Construction (formerly trading as Weaver)

T. & C. Williams (Builders)

T. Denman & Sons (Melton Mowbray)

Thomas Fish & Sons together with its ultimate parent company Fish Holdings

Thomas Long & Sons together with its ultimate parent company Radford Holdings

Thomas Vale Construction Plc together with its ultimate parent company Thomas Vale Holdings

Thorndyke

Try Accord and Galliford Try Construction together with their ultimate parent company Galliford Try plc

W. R. Bloodworth & Sons

Wiggett Bros & Co

Wildgoose Construction

William Sapcote and Sons together with its ultimate parent company Sapcote Holdings

William Woodsend

Willmott Dixon Construction together with its ultimate parent company Willmott Dixon

Wright (Hull) together with its ultimate parent company T. Wright & Son (Holdings)

Wygar Construction Co together with its ultimate parent company Wygar (Holdings)

York House Construction