- 1 - CURATAS LIMITED - 2010-10-15  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Dissolved Corporate (2 parents) - Officer  2007-10-31 ~ 2008-04-30 2007-10-31 ~ 2008-04-30
- IIF 34  - Director →  ME 
- 2 - BFH INCINERATION LIMITED - 2001-10-04 - TUNMAGIC LIMITED - 1998-03-11  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Dissolved Corporate (2 parents, 5 offsprings) - Officer  2007-02-14 ~ 2008-04-30 2007-02-14 ~ 2008-04-30
- IIF 36  - Director →  ME  1998-03-13 ~ 2006-09-27 1998-03-13 ~ 2006-09-27
- IIF 22  - Director →  ME  1998-03-13 ~ 2006-02-27 1998-03-13 ~ 2006-02-27
- IIF 61  - Secretary →  ME 
- 3 - INHOCO 2137 LIMITED - 2000-10-02  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Dissolved Corporate (2 parents, 1 offspring) - Officer  2008-01-02 ~ 2008-04-30 2008-01-02 ~ 2008-04-30
- IIF 29  - Director →  ME  2000-10-03 ~ 2006-09-27 2000-10-03 ~ 2006-09-27
- IIF 7  - Director →  ME  2000-10-03 ~ 2006-02-27 2000-10-03 ~ 2006-02-27
- IIF 54  - Secretary →  ME 
- 4  Lea Riverside, Twelvetrees Crescent, Bow, London Lea Riverside, Twelvetrees Crescent, Bow, London
- Active Corporate (4 parents, 2 offsprings) - Officer  2008-10-30 ~ 2009-10-02 2008-10-30 ~ 2009-10-02
- IIF 12  - Director →  ME 
- 5 - CLINICAL WASTE LIMITED - 2012-09-17 - CLINICAL WASTE PTY. LIMITED - 1993-03-25 - CURITMONT LIMITED - 1988-07-20  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Dissolved Corporate (2 parents) - Officer  2008-01-02 ~ 2008-04-30 2008-01-02 ~ 2008-04-30
- IIF 42  - Director →  ME 
- 6 - FLYCATCHERS INVESTMENTS LIMITED - 1990-01-26  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Dissolved Corporate (2 parents) - Officer  1994-03-01 ~ 2008-04-30 1994-03-01 ~ 2008-04-30
- IIF 23  - Director →  ME  ~ 2008-04-30 ~ 2008-04-30
- IIF 63  - Secretary →  ME 
- 7 - DYVELL LIMITED - 1991-10-03 - STACKSPOT LIMITED - 1990-09-19  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Dissolved Corporate (2 parents, 3 offsprings) - Officer  2008-01-02 ~ 2008-04-30 2008-01-02 ~ 2008-04-30
- IIF 46  - Director →  ME 
- 8 - ELECTCOPY LIMITED - 1993-11-01  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Dissolved Corporate (2 parents) - Officer  2008-01-02 ~ 2008-04-30 2008-01-02 ~ 2008-04-30
- IIF 47  - Director →  ME 
- 9 - RYCULF LIMITED - 1991-10-03  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Dissolved Corporate (2 parents) - Officer  2008-01-02 ~ 2008-04-30 2008-01-02 ~ 2008-04-30
- IIF 40  - Director →  ME 
- 10 - TYPEMATCH LIMITED - 1993-10-07  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Dissolved Corporate (2 parents) - Officer  2008-01-02 ~ 2008-04-30 2008-01-02 ~ 2008-04-30
- IIF 45  - Director →  ME 
- 11  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Dissolved Corporate (2 parents) - Officer  2007-03-14 ~ 2008-04-30 2007-03-14 ~ 2008-04-30
- IIF 11  - Director →  ME 
- 12 - SABELLIAN LIMITED - 1981-12-31  Portland House Bickenhill Lane, Solihull, Birmingham Portland House Bickenhill Lane, Solihull, Birmingham
- Dissolved Corporate (3 parents) - Officer  1995-01-26 ~ 1995-04-30 1995-01-26 ~ 1995-04-30
- IIF 59  - Secretary →  ME  1996-06-30 ~ 1998-03-13 1996-06-30 ~ 1998-03-13
- IIF 60  - Secretary →  ME 
- 13 - BASIC ENERGY (UK) LIMITED - 1995-04-18 - POWER, WATER & WASTE LIMITED - 1990-02-05  Granite House, Granite Way, Syston, Leicester, Leicestershire Granite House, Granite Way, Syston, Leicester, Leicestershire
- Dissolved Corporate (3 parents) - Officer  1994-03-01 ~ 1998-03-13 1994-03-01 ~ 1998-03-13
- IIF 20  - Director →  ME  1991-01-03 ~ 1998-03-13 1991-01-03 ~ 1998-03-13
- IIF 58  - Secretary →  ME 
- 14 - SELECT ENVIRONMENTAL SERVICES LIMITED - 2005-03-02  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Dissolved Corporate (2 parents) - Officer  2006-06-01 ~ 2008-04-30 2006-06-01 ~ 2008-04-30
- IIF 31  - Director →  ME 
- 15  Unit E302, 40 Martell Road, London, England Unit E302, 40 Martell Road, London, England
- Dissolved Corporate (2 parents) - Equity (Company account) - -1,840,658 GBP2017-07-31 
- Officer  2015-07-20 ~ 2017-03-01 2015-07-20 ~ 2017-03-01
- IIF 8  - Director →  ME - Person with significant control  2016-04-06 ~ 2017-03-01 2016-04-06 ~ 2017-03-01
- IIF 64  - Ownership of shares – 75% or more →  OE 
- 16 - WASTE SOLUTIONS LIMITED - 2013-05-08  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Dissolved Corporate (2 parents) - Officer  2006-06-01 ~ 2008-04-30 2006-06-01 ~ 2008-04-30
- IIF 39  - Director →  ME 
- 17 - MEDICAL ENERGY (WORCESTERSHIRE) LIMITED - 2007-10-30  Atlas House Third Avenue, Globe Park, Marlow, Buckinghamshire Atlas House Third Avenue, Globe Park, Marlow, Buckinghamshire
- Active Corporate (5 parents) - Officer  2007-02-14 ~ 2007-02-16 2007-02-14 ~ 2007-02-16
- IIF 25  - Director →  ME  1993-04-06 ~ 2006-09-27 1993-04-06 ~ 2006-09-27
- IIF 4  - Director →  ME  1993-04-06 ~ 2006-02-27 1993-04-06 ~ 2006-02-27
- IIF 52  - Secretary →  ME 
- 18 - BASIC HOLDINGS LIMITED - 1991-01-29 - TODAYTOTAL LIMITED - 1990-04-12 - NORTH WEST ENERGY LIMITED - 2007-10-24  Atlas House Third Avenue, Globe Park, Marlow, Buckinghamshire Atlas House Third Avenue, Globe Park, Marlow, Buckinghamshire
- Active Corporate (5 parents) - Officer  1994-03-01 ~ 2006-09-27 1994-03-01 ~ 2006-09-27
- IIF 1  - Director →  ME  2007-02-14 ~ 2007-02-16 2007-02-14 ~ 2007-02-16
- IIF 27  - Director →  ME  ~ 2006-02-27 ~ 2006-02-27
- IIF 53  - Secretary →  ME 
- 19 - ERS MEDICAL LTD - 2018-12-05 - INDIGO EQUITY HOLDINGS LIMITED - 2012-10-30  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Dissolved Corporate (2 parents, 1 offspring) - Officer  2006-06-01 ~ 2008-04-30 2006-06-01 ~ 2008-04-30
- IIF 30  - Director →  ME 
- 20 - WHITE ROSE SHARPSMART LIMITED - 2008-09-23 - BROOMCO (2648) LIMITED - 2001-10-25  Unit 1 Enterprise Point Enterprise City, Meadowfield Avenue, Spennymoor, Durham, England Unit 1 Enterprise Point Enterprise City, Meadowfield Avenue, Spennymoor, Durham, England
- Active Corporate (3 parents) - Equity (Company account) - 2,531,953 GBP2024-06-30 
- Officer  2006-06-01 ~ 2007-02-19 2006-06-01 ~ 2007-02-19
- IIF 32  - Director →  ME  2006-06-01 ~ 2008-04-17 2006-06-01 ~ 2008-04-17
- IIF 69  - Secretary →  ME 
- 21 - CLINICAL WASTE RESOURCES LIMITED - 1997-03-14 - MEDIPOWER SERVICES LIMITED - 2001-07-26 - STERILE TECHNOLOGIES (NEWCASTLE) LIMITED - 2008-01-07 - SOUTH WEST ENERGY LIMITED - 2007-01-25  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Active Corporate (2 parents, 25 offsprings) - Officer  2007-02-14 ~ 2008-04-30 2007-02-14 ~ 2008-04-30
- IIF 26  - Director →  ME  2001-07-19 ~ 2006-09-27 2001-07-19 ~ 2006-09-27
- IIF 3  - Director →  ME  2001-07-19 ~ 2006-02-27 2001-07-19 ~ 2006-02-27
- IIF 50  - Secretary →  ME 
- 22 - CLINI-CLEAR LIMITED - 2007-10-03  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Dissolved Corporate (3 parents) - Officer  2008-01-02 ~ 2008-04-30 2008-01-02 ~ 2008-04-30
- IIF 41  - Director →  ME  2000-11-27 ~ 2006-09-27 2000-11-27 ~ 2006-09-27
- IIF 5  - Director →  ME  2000-11-27 ~ 2006-02-27 2000-11-27 ~ 2006-02-27
- IIF 51  - Secretary →  ME 
- 23 - BFH INCINERATION LIMITED - 2007-09-24 - BMJ INCINERATION LIMITED - 2001-10-04 - BLUE CIRCLE INCINERATION LIMITED - 1998-03-17 - BASIC ENERGY (HOLDINGS) LIMITED - 1995-04-18 - VERSATILITY SHIPPING LIMITED - 1991-03-15  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Dissolved Corporate (2 parents) - Officer  1994-03-01 ~ 2006-09-27 1994-03-01 ~ 2006-09-27
- IIF 2  - Director →  ME  2007-02-14 ~ 2008-04-30 2007-02-14 ~ 2008-04-30
- IIF 38  - Director →  ME  ~ 2006-02-27 ~ 2006-02-27
- IIF 49  - Secretary →  ME 
- 24 - STERICYCLE UK, LTD. - 2004-07-16  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Active Corporate (2 parents, 3 offsprings) - Officer  2006-06-01 ~ 2008-04-30 2006-06-01 ~ 2008-04-30
- IIF 33  - Director →  ME 
- 25  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Dissolved Corporate (2 parents, 1 offspring) - Officer  2008-01-02 ~ 2008-04-30 2008-01-02 ~ 2008-04-30
- IIF 44  - Director →  ME  2003-10-23 ~ 2003-11-03 2003-10-23 ~ 2003-11-03
- IIF 18  - Director →  ME  2003-12-02 ~ 2006-09-27 2003-12-02 ~ 2006-09-27
- IIF 28  - Director →  ME  2004-03-26 ~ 2006-02-27 2004-03-26 ~ 2006-02-27
- IIF 62  - Secretary →  ME 
- 26 - SOUTH WEST ENERGY LIMITED - 2012-07-02 - STERILE TECHNOLOGIES (AVONMOUTH) LIMITED - 2007-01-25  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Dissolved Corporate (2 parents) - Officer  2004-12-09 ~ 2006-09-27 2004-12-09 ~ 2006-09-27
- IIF 6  - Director →  ME  2008-02-01 ~ 2008-04-30 2008-02-01 ~ 2008-04-30
- IIF 43  - Director →  ME  2004-12-09 ~ 2006-02-27 2004-12-09 ~ 2006-02-27
- IIF 48  - Secretary →  ME 
- 27 - POLKACREST WALES LIMITED - 2013-06-26 - STERILE TECHNOLOGIES (NEWCASTLE) LIMITED - 2007-01-25 - POLKACREST LIMITED - 2018-03-21 - ATTERO SERVICES LIMITED - 2007-11-19  Atlas House Third Avenue, Globe Park, Marlow, Buckinghamshire Atlas House Third Avenue, Globe Park, Marlow, Buckinghamshire
- Active Corporate (5 parents) - Officer  2004-01-19 ~ 2006-09-27 2004-01-19 ~ 2006-09-27
- IIF 19  - Director →  ME  2007-02-14 ~ 2007-02-16 2007-02-14 ~ 2007-02-16
- IIF 37  - Director →  ME  2004-01-19 ~ 2006-02-27 2004-01-19 ~ 2006-02-27
- IIF 57  - Secretary →  ME 
- 28 - HAUL WASTE DISPOSAL LIMITED - 1999-10-04 - VIRIDOR WASTE DISPOSAL LIMITED - 2022-04-13 - BLUE CIRCLE WASTE MANAGEMENT LIMITED - 1995-07-19  Oil Depot, 242 London Road, Stretton On Dunsmore, England Oil Depot, 242 London Road, Stretton On Dunsmore, England
- Active Corporate (2 parents, 1 offspring) - Officer  1992-06-08 ~ 1995-07-19 1992-06-08 ~ 1995-07-19
- IIF 21  - Director →  ME  1992-06-08 ~ 1995-07-19 1992-06-08 ~ 1995-07-19
- IIF 56  - Secretary →  ME 
- 29 - WHITE ROSE ENVIRONMENTAL HOLDINGS LIMITED - 2002-11-11 - BROOMCO (2331) LIMITED - 2000-11-13  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Dissolved Corporate (2 parents, 1 offspring) - Officer  2006-06-01 ~ 2008-04-30 2006-06-01 ~ 2008-04-30
- IIF 35  - Director →  ME 
- 30 - WHITE ROSE ENVIRONMENTAL LTD - 2002-11-11 - YORKSHIRE ENVIRONMENTAL SOLUTIONS LTD - 2000-01-04 - YORKSHIRE ENVIRONMENTAL LIMITED - 1998-04-06 - YW ENTERPRISES LIMITED - 1994-09-30  Indigo House, Sussex Avenue, Leeds, West Yorkshire Indigo House, Sussex Avenue, Leeds, West Yorkshire
- Dissolved Corporate (2 parents, 2 offsprings) - Officer  2007-09-06 ~ 2008-04-30 2007-09-06 ~ 2008-04-30
- IIF 24  - Director →  ME