The above diagram shows the color scheme of the layout in the main result page. The parent entities and officers who have significant controls over the individuals in focus are always inapplicable. The offspring entities and appointments are those entities that the individuals in focus can influence on.
Clicking the links on parent entities or officers, and offspring entities or managed companies will put them in focus and show upstream or downstream connections. In general, ascendant entities can be found by moving toward upstream, and descendant entities are by toward downstream. In this way, progenitor entities such as grandparent companies (parents of parent), sibling companies (children of parent), partner companies (parents of child), and progeny entities such as grandchild companies (children of child) can be found easily.
Parent entities and officers
Inapplicable
Individuals in focus
Sigsworth, David, Prof.
Sigsworth, David, Prof.
British born in July 1946Resident in United Kingdom
Registered addresses and corresponding companiesSigsworth, David, Prof.
British commercial director born in July 1946Resident in United Kingdom
Registered addresses and corresponding companies
IIF 4
9 Station Road, South Queensferry, West Lothian, EH30 9HY
Sigsworth, David, Prof.
British company director born in July 1946Resident in United Kingdom
Registered addresses and corresponding companies
IIF 5 Unit 1a, Burnfoot Industrial Estate, Hawick, TD9 8SL, United Kingdom
Sigsworth, David, Prof.
British consultant born in July 1946Resident in United Kingdom
Registered addresses and corresponding companiesSigsworth, David, Prof.
British director born in July 1946Resident in United Kingdom
Registered addresses and corresponding companiesSigsworth, David, Prof.
British energy trading director born in July 1946Resident in United Kingdom
Registered addresses and corresponding companies
IIF 17 9 Station Road, South Queensferry, West Lothian, EH30 9HY
Sigsworth, David, Prof.
British generation director born in July 1946Resident in United Kingdom
Registered addresses and corresponding companiesSigsworth, David, Prof.
British manager born in July 1946Resident in United Kingdom
Registered addresses and corresponding companiesSigsworth, David, Prof.
British non executive director and chairman born in July 1946Resident in United Kingdom
Registered addresses and corresponding companiesSigsworth, David, Prof.
British senior independent non-executive director born in July 1946Resident in United Kingdom
Registered addresses and corresponding companies
IIF 47 Floor 3, 1, St. Ann Street, Manchester, M2 7LR, England
Related profiles found in government register
Offspring entities and appointments
Active
3
- 1 Suite 2, Ground Floor, Orchard Brae House, 30 Queensferry Road, Edinburgh, ScotlandActive Corporate (6 parents)Net Assets/Liabilities (Company account)64,067 GBP2025-05-29Officer
2023-08-31 ~ nowIIF 1 - Director → ME - 2 C/o Ade, 10 Dean Farrar Street, 6th Floor, London, EnglandActive Corporate (9 parents)Equity (Company account)302,183 GBP2024-03-31Officer 2015-10-01 ~ nowIIF 2 - Director → ME
- 3
SEAENERGY PLC
- nowRAMCO OIL SERVICES PLC - 1994-07-01RAMCO ENERGY PLC - 2009-09-24 Kpmg Llp, 37 Albyn Place, Aberdeen, AberdeenshireDissolved Corporate (5 parents)Officer 2009-09-24 ~ dissolvedIIF 9 - Director → ME
Ceased
40
- 1
ACM CATALYST LIMITED
- nowACTIVE CORPORATE MANAGEMENT LIMITED - 2005-12-12NEWCO (753) LIMITED - 2003-05-27 Redmarley : Kippen : Stirlingshire, Redmarley, Kippen : Fk8 3hs, Stirlingshire, ScotlandDissolved Corporate (2 parents)Officer 2005-07-04 ~ 2006-05-31IIF 10 - Director → ME - 2LISTER SQUARE (NO. 102) LIMITED - 2012-07-20 Level 5, 9 Haymarket Square, Edinburgh, ScotlandActive Corporate (5 parents)Equity (Company account)720,101 GBP2024-12-31Officer 2015-11-20 ~ 2020-02-29IIF 12 - Director → ME
- 3 48 Enterprise House, Springkerse Business Park, Stirling, ScotlandActive Corporate (10 parents)Officer 2017-08-01 ~ 2025-03-31IIF 16 - Director → ME
- 4AURORA ENERGY RETAIL 2 LIMITED - 2003-10-03HYDRO-ELECTRIC GAS LIMITED - 1993-07-13DUNWILCO (316) LIMITED - 1993-02-25VECTOR GAS LIMITED - 2003-09-23 50 Lothian Road, Festival Square, EdinburghActive Corporate (5 parents)Officer 1993-08-13 ~ 1997-05-23IIF 38 - Director → ME
- 5 Dundee Science Centre, Greenmarket, Dundee, ScotlandActive Corporate (10 parents, 1 offspring)Officer 2004-08-24 ~ 2019-03-31IIF 46 - Director → ME
- 6COMLAW NO. 476 LIMITED - 1998-11-04SENSATION LIMITED - 2012-12-31DUNDEE SCIENCE CENTRE (TRADING) LIMITED - 2000-03-09 Dundee Science Centre, Greenmarket, Dundee, ScotlandActive Corporate (6 parents)Equity (Company account)57,335 GBP2022-03-31Officer 2000-09-12 ~ 2019-03-31IIF 45 - Director → ME
- 7ELECTRICITY INDUSTRY SERVICES LIMITED - 1989-10-30 Central Square, 29 Wellington Street, Leeds, West YorkshireDissolved Corporate (12 parents)Officer 2002-10-17 ~ 2005-03-31IIF 4 - Director → ME
- 8 C/o Wylie & Bisset Llp, 168 Bath Street, Glasgow, ScotlandActive Corporate (6 parents)Officer 2005-11-09 ~ 2011-11-03IIF 8 - Director → ME
- 9
FLEXITRICITY LIMITED
- nowMARTIN ENERGY LIMITED - 2008-04-28 Mainpoint, 102 West Port, Edinburgh, ScotlandActive Corporate (6 parents)Equity (Company account)-13,000 GBP2024-03-31Officer 2006-10-24 ~ 2014-04-07IIF 11 - Director → ME - 10
HAI CLEAN LIMITED
- nowCASTLELAW (NO.610) LIMITED - 2005-11-15OXY-GEN COMBUSTION LIMITED - 2022-02-28 Strathleven House, Levenside Road, Dumbarton, ScotlandActive Corporate (5 parents)Equity (Company account)-372,889 GBP2024-06-30Officer 2012-01-19 ~ 2014-03-25IIF 6 - Director → ME - 11SCROLLTRADE LIMITED - 1992-10-05 Keadby Power Station, P O Box 89 Keadby, Scunthorpe, North LincolnshireDissolved Corporate (2 parents)Officer 1992-10-02 ~ 1993-02-19IIF 39 - Director → ME 1994-11-17 ~ 2005-03-31IIF 23 - Director → ME
- 12RUBYDOVE LIMITED - 1992-03-26 Sse Plc , Keadby Power Station Trentside, Keadby, Scunthorpe, United KingdomActive Corporate (11 parents)Officer 1992-04-08 ~ 1993-02-19IIF 43 - Director → ME 1994-11-17 ~ 2005-03-31IIF 35 - Director → ME
- 13BALLTRADE LIMITED - 1992-10-05 Keadby Power Station Trentside, Keadby, Scunthorpe, United KingdomActive Corporate (11 parents)Officer 1994-11-07 ~ 2005-03-31IIF 29 - Director → ME 1992-10-02 ~ 1993-02-19IIF 44 - Director → ME
- 14
KEADBY POWER LIMITED
- nowPOPPYGROVE LIMITED - 1991-08-19 Keadby Power Station, P O Box 89 Keadby, Scunthorpe, North LincolnshireDissolved Corporate (2 parents)Officer ~ 1993-02-19IIF 42 - Director → ME 1994-11-17 ~ 2005-03-31IIF 31 - Director → ME - 15KNIGHTPEARL PUBLIC LIMITED COMPANY - 2007-06-14 58 Southdean Gardens, Wimbledon Park, LondonActive Corporate (1 parent)Equity (Company account)2 GBP2024-01-31Officer 2007-04-11 ~ 2008-11-17IIF 7 - Director → ME
- 16
MEDWAY POWER LIMITED
- nowAES MEDWAY LIMITED - 1992-02-28SERVICERULE LIMITED - 1991-03-12 No.1 Forbury Place, 43 Forbury Road, Reading, United KingdomActive Corporate (11 parents)Officer 1999-11-12 ~ 2005-03-31IIF 17 - Director → ME - 17
NEOS NETWORKS LIMITED
- nowSSE TELECOMMUNICATIONS LIMITED - 2021-03-30DUNWILCO (844) LIMITED - 2001-01-08 Inveralmond House, 200 Dunkeld Road, PerthActive Corporate (9 parents, 4 offsprings)Officer 2001-03-19 ~ 2001-09-28IIF 40 - Director → ME - 18SOUTH WALES ELECTRICITY LIMITED - 2018-02-16SSE ELECTRICITY LIMITED - 2020-01-16DUNWILCO (829) LIMITED - 2001-07-27 1 Rivergate Temple Quay, Bristol, EnglandActive Corporate (3 parents)Officer 2001-03-26 ~ 2005-03-31IIF 27 - Director → ME
- 19
OVO (S) GAS LIMITED
- nowSOUTHERN AND PHILLIPS GAS LIMITED - 1996-11-01JOINTEXCESS LIMITED - 1992-08-17SOUTHERN ELECTRIC GAS LIMITED - 2020-01-16 1 Rivergate Temple Quay, Bristol, EnglandActive Corporate (4 parents)Officer 2001-06-26 ~ 2005-03-31IIF 34 - Director → ME - 20REPSOL NUEVAS ENERGIAS UK LIMITED - 2016-03-11RED ROCK POWER LIMITED - 2024-07-19WIND FARM ENERGY UK LIMITED - 2016-08-30SEAENERGY RENEWABLES LIMITED - 2011-07-21SEAENERGY RESOURCES LIMITED - 2007-11-19LEDGE 868 LIMITED - 2005-06-08 30 Semple Street, 4th Floor, Edinburgh, ScotlandActive Corporate (6 parents, 7 offsprings)Officer 2008-10-01 ~ 2011-06-28IIF 15 - Director → ME
- 21DUNWILCO (1039) LIMITED - 2003-06-09 Elder House, 24 Elder Street, Edinburgh, ScotlandDissolved Corporate (2 parents)Officer 2003-06-03 ~ 2007-09-27IIF 26 - Director → ME
- 22
SEABANK POWER LIMITED
- nowGIGABIT SERVICES LIMITED - 1991-07-26 Severn Road, Hallen, BristolActive Corporate (9 parents)Officer 1996-01-19 ~ 2005-03-31IIF 41 - Director → ME - 23SIGMA TECHNOLOGY GROUP PLC - 2006-06-12SIGMA CAPITAL GROUP PLC - 2021-10-06 Floor 3, 1 St. Ann Street, Manchester, EnglandActive Corporate (5 parents, 7 offsprings)Officer 2007-06-19 ~ 2021-08-31IIF 47 - Director → ME
- 24
SIMPLE2 LIMITED
- nowQUAYSHELFCO 765 LIMITED - 2000-05-18 55 Vastern Road, Reading, BerkshireDissolved Corporate (2 parents)Officer 2000-08-09 ~ 2005-03-31IIF 28 - Director → ME - 25THOROUGHREALM LIMITED - 1998-07-31SOLAR CENTURY (HOLDINGS) LIMITED - 1999-03-10 19th Floor 22 Bishopsgate, London, EnglandActive Corporate (5 parents, 1 offspring)Officer 2005-01-17 ~ 2007-10-10IIF 14 - Director → ME
- 26
SSE ENERGY LIMITED
- nowHYDRO-ELECTRIC ENERGY LIMITED - 1999-12-24LEGIBUS 1532 LIMITED - 1991-02-13 55 Vastern Road, Reading, BerkshireDissolved Corporate (2 parents)Officer ~ 2005-03-31IIF 22 - Director → ME - 27APRILBRIDGE LIMITED - 1999-05-27BRITISH ENERGY RETAIL MARKETS LIMITED - 2000-08-25 No.1 Forbury Place, 43 Forbury Road, Reading, United KingdomActive Corporate (7 parents, 3 offsprings)Officer 2001-06-26 ~ 2005-03-31IIF 24 - Director → ME
- 28
SSE FREIGHT LIMITED
- nowDUNWILCO (1157) LIMITED - 2004-09-06 55 Vastern Road, Reading, BerkshireDissolved Corporate (2 parents)Officer 2004-09-03 ~ 2005-03-31IIF 21 - Director → ME - 29
SSE GENERATION LIMITED
- nowRIVALFORGE LIMITED - 1988-12-29SSE POWER GENERATION LIMITED - 2001-08-30SOUTHERN ELECTRIC POWER GENERATION LIMITED - 1999-12-24 No.1 Forbury Place, 43 Forbury Road, Reading, United KingdomActive Corporate (11 parents, 9 offsprings)Officer 1999-10-08 ~ 2005-03-31IIF 36 - Director → ME - 30SWANFALL LIMITED - 1992-02-21AES MEDWAY OPERATIONS LIMITED - 2003-11-13 No.1 Forbury Place, 43 Forbury Road, Reading, United KingdomActive Corporate (11 parents)Officer 2003-11-25 ~ 2005-03-31IIF 33 - Director → ME
- 31
SSE PLC
- nowSCOTTISH HYDRO-ELECTRIC PLC - 1998-12-14NORTH OF SCOTLAND ELECTRICITY PLC - 1989-08-01SCOTTISH AND SOUTHERN ENERGY PLC - 2011-09-30 Inveralmond House, 200 Dunkeld Road, Perth, PerthshireActive Corporate (12 parents, 24 offsprings)Officer 1995-01-19 ~ 2005-03-31IIF 20 - Director → ME - 32
SSE POWER LIMITED
- nowHYDRO-ELECTRIC POWER LIMITED - 1999-12-24NORWEB POWER LTD - 1997-04-11 55 Vastern Road, Reading, BerkshireDissolved Corporate (2 parents)Officer 1997-03-27 ~ 2005-03-31IIF 19 - Director → ME - 33
SSE RETAIL LIMITED
- nowDUNWILCO (845) LIMITED - 2001-01-08 Inveralmond House, 200 Dunkeld Road, PerthActive Corporate (3 parents)Officer 2001-03-19 ~ 2001-09-28IIF 37 - Director → ME - 34HYDRO-ELECTRIC GENERATION LIMITED - 1992-03-20HE SEABANK INVESTMENTS LIMITED - 1999-12-24LEGIBUS 1643 LIMITED - 1991-09-02HYDRO-ELECTRIC SUPPLY LIMITED - 1996-01-17 No.1 Forbury Place, 43 Forbury Road, Reading, United KingdomActive Corporate (11 parents, 1 offspring)Officer ~ 2005-03-31IIF 25 - Director → ME
- 35SEPG (OPERATIONS) LIMITED - 1999-12-24TIDYEVER ENTERPRISES LIMITED - 1992-12-15 No.1 Forbury Place, 43 Forbury Road, Reading, United KingdomActive Corporate (11 parents)Officer 1999-10-08 ~ 2005-03-31IIF 32 - Director → ME
- 36 85 Great Portland Street Sustainability First, 85 Great Portland Street, First Floor, London, United KingdomActive Corporate (10 parents)Officer 2003-03-04 ~ 2025-04-08IIF 18 - Director → ME
- 37
SWALEC GAS LIMITED
- nowSOUTH WALES ENERGY LIMITED - 1993-08-03SOUTH WALES ELECTRICITY CONTRACTING (GWAITH CONTRACT DE CYMRU) LIMITED - 1992-03-24PRECIS (1099) LIMITED - 1992-01-08CELTIC FLAME LIMITED - 1992-05-27 55 Vastern Road, Reading, BerkshireDissolved Corporate (3 parents)Officer 2001-06-26 ~ 2005-03-31IIF 30 - Director → ME - 38COMBINED HEAT AND POWER ASSOCIATION - 2017-01-31DISTRICT HEATING ASSOCIATION - 1983-11-07 Heron House 10 Dean Farrar Street, 6th Floor, LondonActive Corporate (11 parents)Equity (Company account)1,206,159 GBP2024-03-31Officer 1992-06-29 ~ 2004-11-18IIF 3 - Director → ME
- 39 Floor 3 1 St. Ann Street, Manchester, EnglandDissolved Corporate (2 parents)Equity (Company account)0 GBP2023-04-30Officer 2018-04-23 ~ 2021-08-31IIF 13 - Director → ME
- 40TURBULL & SCOTT (ENGINEERS) LIMITED - 2008-03-13HUBWAY LIMITED - 2008-03-13 Unit 1a, Burnfoot Industrial Estate, Hawick, United KingdomActive Corporate (6 parents, 3 offsprings)Equity (Company account)575,861 GBP2024-12-31Officer 2017-01-18 ~ 2019-02-20IIF 5 - Director → ME
The content of this website is protected by AgonGuard.
© 2022-2025 Polylogarithmic Technology Ltd (Registered in England and Wales No. 14256313). All rights reserved.
Contains public sector information retrieved at 12 November 2025 and
licensed under the Open Government Licence v3.0.