- HOWELLS COACH- 07702377 - Incorporated on 12 July 2011 
- HOWELLS & SON LTDDissolved- 06693755 - Dissolved on 29 November 2011 
- NOVACTUS LIMITED- 09480101 - Incorporated on 10 March 2015 
- HOWELLS INC LTDActive - Proposal to Strike off- 10192764 - Incorporated on 21 May 2016 
- HOWELLS PVT LTD- 16534995 - Incorporated on 23 June 2025 
- HUK GROUP LTD- 04768441 - Incorporated on 18 May 2003 
- AGB HOWELLS LTD- 11406429 - Incorporated on 8 June 2018 
- NAT RICHARD HOWELLS- Born October 1924 - 17 BARBROOK CLOSE, LISVANE, CARDIFF, SOUTH GLAMORGAN, CF4 5XG 
- NAT RICHARD HOWELLS- Born October 1924 - 1 SANDWICK COURT, CYNCOED ROAD, CARDIFF, SOUTH GLAMORGAN, CF23 6SS 
- WELLS SYSTEMS LIMITED- 09673390 - Incorporated on 7 July 2015 
- HOWELLS RAIL LTDActive - Proposal to Strike off- 10852006 - Incorporated on 5 July 2017 
- JACK HOWELLS LTDActive - Proposal to Strike off- 14007590 - Incorporated on 28 March 2022 
- RICHARD ANDREW HOWELLS- Born May 1961 - 23 MAESTEG ROAD, CWMFELIN, MAESTEG, BRIDGEND, WALES, CF34 9LD 
- DAVID RICHARD HOWELLS- CENTRAL BUSINESS PARK, SWANSEA VALE, SWANSEA, SA7 0AB 
- JONATHAN RICHARD HOWELLS- Born December 1967 - 57 GROSVENOR STREET, LONDON, ENGLAND, W1K 3JA 
- RICHARD PHILIP HOWELLS- Born January 1963 - 2 CHARNWOOD COURT, NEWPORT STREET, SWINDON, WILTSHIRE, SN1 3DX 
- JOHNATHON RICHARD HOWELLS- Born December 1967 - FLAT 11, 1 NILE STREET, LONDON, N1 7LX 
- RICHARD DEAN HOWELLS- Born July 1973 - JUBILEE CLUB JOHN STREET, CARMARTHEN, CARMS, UNITED KINGDOM, SA31 1QT 
- DAVID RICHARD HOWELLS- 19 LLWYN COCH, BRIDGEND, MID GLAMORGAN, CF31 5BJ 
- MATTHEW RICHARD HOWELLS- Born January 1968 - 9 POOLE LANE, KINSON, BOURNEMOUTH, DORSET, BH11 9DX