Company · Helsby
RSK Group Limited
Activities of head offices
Official record Companies House · updated 27th September 2026 · Sources
Network
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Who leads it
- Stephen John AbbottDirector · since 2026
- Andrew Paul MarkwickDirector · since 2025
- Louis JacobsDirector · since 2025
- Steven ScottDirector · since 2024
- Michael Christopher DennisDirector · since 2024
- James Richard Studdart RedmayneDirector · since 2024
- Lara Duro PerezDirector · since 2024
- Jessica SparkesDirector · since 2024
- Ross Arron ChattawayDirector · since 2024
- Zoe BrunswickDirector · since 2024
- Robert Jonathan WinklerDirector · since 2024
- Gary ParkinsonDirector · since 2024
- Paul James BresnanDirector · since 2024
- David Iain TaylorDirector · since 2023
- Dr Ian Robert GoodacreDirector · since 2023
- Peter John WitheringtonDirector · since 2023
- Hannah Lucy ThomasDirector · since 2022
- Gary Donald YoungDirector · since 2021
- Claire Ashley KnightonDirector · since 2019
- Dr George William TuckwellDirector · since 2019
- Sarah-Anne Louise MogfordDirector · since 2019
- Stefan BangelsDirector · since 2013
- Garry CharnockDirector · since 2009
- Nigel Paul BoardDirector · since 2005
- Dr Mary-Ann Elizabeth SmythDirector · since 2001
- Ian Harry StrudwickDirector · since 2001
- Michael William MasonDirector · since 2001
- Sally EvansSecretary · since 2019
Previous officers 13
- Mark Jonathan Silver 2025-2026 View profile
- Mark Thomas Paul Haydock 2024-2026 View profile
- Dr Stephanie Wray 2022-2024 View profile
- Richard Douglas Edwards 2021-2023 View profile
- Ben Julius Barker 2016-2017 View profile
- Richard Edwards 2012-2014 View profile
- Peter Hookham 2009-2011 View profile
- Dr Paul Stewart Upton 2009-2022 View profile
- John Roger Jones 2009-2018 View profile
- Carol Ann Beer 2009-2009 View profile
- Steven Geoffrey Mills 2007-2019 View profile
- Susan Sljivic 2001-2020 View profile
- Dr Sheila Caroline Ryder 1999-2003 View profile
Directors and secretaries as filed at Companies House.
Do you help lead this organisation? Set up its network · How it works
Public contracts won
3 contractsFrom Contracts Finder and Find a Tender, the UK Government's public procurement notices, under the Open Government Licence v3.0. Matched to this organisation by company number, charity number or exact name and postcode; every figure links to its source notice.
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Framework for National Peatland Action Programme and Pen y Cymoedd Habitat Management Plan Restoration Works
Natural Resources Wales is planning to undertake a pan-Wales programme of peatland management, focusing initially on the hydrological restoration of damaged, degraded lowland and upland and post-felling bogs, this requirements will be large…
Framework -
Ecological Supervision change to 2-stage method of work at Longwood drive
This agreement covers the provision of additional ecological supervision services by RSK BIOCensus to support a revised 2-stage vegetation clearance method at Longwood Drive, Forest Farm, undertaken under the European Protected Species Deve…
About
- What it does
- Activities of head offices
- Incorporated
- 28/04/1999
- Registered office
- Helsby
- Previous names
- RSK Ensr Group PLC (until 24/01/2007)
Ownership
Owned by (2) iOwned byIndividuals and companies registered as having significant control over this company, from the Companies House PSC (persons with significant control) register. People whose ownership could not be confirmed to one individual are not listed as confirmed owners.
- Alasdair Alan Ryder ceased 2025-12-18
25-50% voting · notified 2016-04-06 - Alan Ryder Investments Limited
25-50% shares, 25-50% voting · notified 2025-12-18
Group
- RSK Group Limited
is controlled by Alasdair Alan Ryder
Evidence
ceased 25-50% voting · notified 2016-04-06, ceased 2025-12-18 · source: Companies House PSC register
Ultimately controlled by Alasdair Alan Ryder.
108 other companies in this group
- RSK Stats Geoconsult Limited
- Topham Investco Limited
- ARA Architecture Limited
- Proeon Holdings Limited
- RSK Remediation Limited
- PA Group (UK) Limited
- Axis Well Technology International Limited
- RSK Project Services Limited
- Travis Baker Limited
- MWH Constructors Limited
- RSK Carbon Management Limited
- Absolute Solar and Wind LTD
- Axis Well Technology Group Limited
- R.W. Management (Holdings) LTD
- RSK Investments (Newcastle) LLP
- IAN Farmer Associates (1998) Limited
- 06126847
- MWH Farrer Limited
- 3BM Limited
- WE ARE Brandnew LTD
- Pegasys Limited
- Cognica Limited
- ECD Architects LTD
- RSK Radiological Limited
- Envirolab Limited
- RSK HI-Line Limited
- Water Research Limited
- 07143956
- 11493916
- Technical Editing Services Limited
- Alan Ryder Investments Limited
- JB Site Investigations Limited
- R.J.T. Excavations Limited
- Hawkins Electrical Holdings Limited
- WRC Aqua Limited
- Axis Well Technology Limited
- MWH Limited
- Kendall Kingscott Limited
- RSK RAW Limited
- Advantage RSK Limited
- RSK Integrated Waste Solutions Limited
- Headland Archaeology (UK) Limited
- Reigate Asset Leasing LTD.
- Binnies UK Limited
- N-Able Property Services LTD
- Axis Well Technology Management Limited
- Building Sciences Limited
- Argus Environmental Limited
- WRC Evaluation and Testing Centre Limited
- Keegans Limited
Ownership paths are calculated from Companies House persons-with-significant-control filings. Each step shows the filed nature of control and dates; a step marked "ceased" is historical, not current.
Board analysis
Board DNA
How this board is put together, from the Companies House officer record and Charity Commission trustee records - deterministic, no AI.iBoard compositionCounted from the dated Companies House officer record: the current directors only, past directors excluded.
27 directors on the board
- Claire Ashley Knighton Director · appointed 2019
- Steven Scott Director · appointed 2024
- Stephen John Abbott Director · appointed 2026
- Hannah Lucy Thomas Director · appointed 2022
- Dr Mary-Ann Elizabeth Smyth Director · appointed 2001
- Louis Jacobs Director · appointed 2025
- Lara Duro Perez Director · appointed 2024
- Jessica Sparkes Director · appointed 2024
- Dr George William Tuckwell Director · appointed 2019
- Michael Christopher Dennis Director · appointed 2024
- Ross Arron Chattaway Director · appointed 2024
- Ian Harry Strudwick Director · appointed 2001
- James Richard Studdart Redmayne Director · appointed 2024
- Peter John Witherington Director · appointed 2023
- Zoe Brunswick Director · appointed 2024
- Robert Jonathan Winkler Director · appointed 2024
- Gary Donald Young Director · appointed 2021
- Nigel Paul Board Director · appointed 2005
- Garry Charnock Director · appointed 2009
- David Iain Taylor Director · appointed 2023
- Stefan Bangels Director · appointed 2013
- Michael William Mason Director · appointed 2001
- Gary Parkinson Director · appointed 2024
- Sarah-Anne Louise Mogford Director · appointed 2019
- Dr Ian Robert Goodacre Director · appointed 2023
- Andrew Paul Markwick Director · appointed 2025
- Paul James Bresnan Director · appointed 2024
Directors past 6 years
- Claire Ashley Knighton Director · appointed 2019
- Dr Mary-Ann Elizabeth Smyth Director · appointed 2001
- Dr George William Tuckwell Director · appointed 2019
- Ian Harry Strudwick Director · appointed 2001
- Nigel Paul Board Director · appointed 2005
- Garry Charnock Director · appointed 2009
- Stefan Bangels Director · appointed 2013
- Michael William Mason Director · appointed 2001
- Sarah-Anne Louise Mogford Director · appointed 2019
First-time vs portfolio directors
First-time (6)
- Stephen John Abbott Director · appointed 2026
- Jessica Sparkes Director · appointed 2024
- Ross Arron Chattaway Director · appointed 2024
- Zoe Brunswick Director · appointed 2024
- Robert Jonathan Winkler Director · appointed 2024
- Stefan Bangels Director · appointed 2013
Portfolio (21)
- Claire Ashley Knighton Director · appointed 2019
- Steven Scott Director · appointed 2024
- Hannah Lucy Thomas Director · appointed 2022
- Dr Mary-Ann Elizabeth Smyth Director · appointed 2001
- Louis Jacobs Director · appointed 2025
- Lara Duro Perez Director · appointed 2024
- Dr George William Tuckwell Director · appointed 2019
- Michael Christopher Dennis Director · appointed 2024
- Ian Harry Strudwick Director · appointed 2001
- James Richard Studdart Redmayne Director · appointed 2024
- Peter John Witherington Director · appointed 2023
- Gary Donald Young Director · appointed 2021
- Nigel Paul Board Director · appointed 2005
- Garry Charnock Director · appointed 2009
- David Iain Taylor Director · appointed 2023
- Michael William Mason Director · appointed 2001
- Gary Parkinson Director · appointed 2024
- Sarah-Anne Louise Mogford Director · appointed 2019
- Dr Ian Robert Goodacre Director · appointed 2023
- Andrew Paul Markwick Director · appointed 2025
- Paul James Bresnan Director · appointed 2024
Left in the last 12 months
- Mark Thomas Paul Haydock Director · appointed 2024 · resigned 2026
- Mark Jonathan Silver Director · appointed 2025 · resigned 2026
Where else this board sits iWhere else this board sitsThe charitable fields these directors govern in elsewhere, by Charity Commission classification. Excludes this company and any charity it is the legal face of.
The sectors these directors govern in elsewhere. This company, and any charity it is the legal face of, are excluded - counting them would just tell you what you are already looking at.
Sources
Official record from Companies House. Governance Register calculates the connections.
Record details
- Company number
- 03761340
- Status
- Active
- Type
- Private Limited Company
- Accounts next due
- 31/12/2026
- Edition
- Register edition compiled 27th September 2026
- Labels
- Official record from Companies House · Calculated derived by Governance Register.
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