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Radioactive Waste Management Limited

08920190

active
ltd
england wales
Companies House
Health Score
65 / 100

Some Concerns

25/30
Filing
0/30
Financial
40/40
Risk

No risk factors detected.

Details

Pelham House Pelham Drive, Calderbridge, Seascale, CA20 1DB
Incorporated 03/03/2014

Compliance

Last accounts

31/03/2025

audit exemption subsidiary

Next accounts due

31/12/2026

On track

Confirmation statement

Last: 09/03/2026

Due 23/03/2027

On track

Industry

74909
Other professional, scientific and technical activities

Officers

Mr Seth Kybird

director · Since 01/04/2025

CHIEF EXECUTIVE

BRITISH · ENGLAND · Age 49

Also on 2 other boards

Alexandra De Keyser

secretary · Since 01/02/2026

Also on 1 other board

Alexandra De Keyser

director · Since 01/02/2026

BRITISH · ENGLAND · Age 45

Also on 1 other board

Seth Kybird

director · Since 01/04/2025

British · England · Age 49

Alexandra De Keyser

secretary · Since 01/02/2026

Alexandra De Keyser

director · Since 01/02/2026

British · England · Age 45

Former

Robert Andrew Bryson Higgins

director · Resigned 24/11/2015

Jonathan David Phillips

director · Resigned 31/03/2016

Alun Tudor Ellis

director · Resigned 26/04/2016

Adrian Mark Simper

director · Resigned 31/08/2016

William Nigel Lowe

director · Resigned 10/10/2016

Charles David Curtis

director · Resigned 29/11/2016

Susan Margaret Douthwaite

director · Resigned 03/02/2017

David Gordon Batters

director · Resigned 01/02/2018

Paul Andrew Vallance

director · Resigned 16/04/2018

Kiernan Patrick Doherty

director · Resigned 30/04/2018

Nia Melanie Brownridge

director · Resigned 30/04/2019

Ann Marie Mccall

director · Resigned 18/12/2019

Helen Elizabeth Hodgson

secretary · Resigned 23/01/2020

Bruce John Mckirdy

director · Resigned 31/03/2020

John Roger Corderoy

director · Resigned 04/05/2021

Matthew Shaw

secretary · Resigned 09/06/2021

Andrew Cornelis Van Der Lem

director · Resigned 23/07/2021

Claes Thegerstrom

director · Resigned 31/12/2021

Peter John Lock

director · Resigned 31/12/2021

Michael Byron John Bowman

director · Resigned 31/12/2021

Malcolm Morley

director · Resigned 31/12/2021

Alex De Keyser

secretary · Resigned 31/12/2021

Karen Wheeler

director · Resigned 31/01/2023

Neil Dennis Baldwin

director · Resigned 03/07/2023

David Michael Prout

director · Resigned 01/04/2024

Alan Douglas Cumming

director · Resigned 01/04/2024

Martin Walkingshaw

director · Resigned 01/04/2024

Shrinivas Madhav Honap

director · Resigned 01/04/2024

Adrienne Kelbie

director · Resigned 01/04/2024

Melanie Nia Brownridge

director · Resigned 01/04/2024

Mina Golshan

director · Resigned 01/04/2024

Juliet Eve Sotnick

director · Resigned 01/04/2024

Corhyn Parr

director · Resigned 31/03/2025

Michael John Buttery

director · Resigned 31/10/2025

Victoria Susan Bennett

secretary · Resigned 31/01/2026

Victoria Susan Bennett

director · Resigned 31/01/2026

Persons with Significant Control

Nuclear Decommissioning Authority

75–100% shares

Nuclear Decommissioning Authority, Herdus House, Moor Row, CA24 3HU

Reg: N/A · United Kingdom Companies Registry · Non Departmental Public Body

Notified 14/02/2022

Secretary Of State For The Department For Energy Security And Net Zero

Appoint directors

3-8, Whitehall, London, SW1A 2EG

Notified 07/02/2023

Former PSCs

Secretary Of State For Beis

Ceased 07/02/2023

Change History

statusactive
2026-08-10

Active

typeltd
2026-08-10

Private Limited Company

address line1Pelham House Pelham Drive
2026-08-10

PELHAM HOUSE PELHAM DRIVE

post townSeascale
2026-08-10

SEASCALE

officer appointedDE KEYSER, Alexandra
2026-08-10
officer appointedDE KEYSER, Alexandra
2026-08-10
officer appointedKYBIRD, Seth
2026-08-10