Houses of Parliament
- House of Lords: Lord MacLaurin (Conservative, life peer) retired on 22 December; Lord Blyth of Rowington (Conservative, life peer) retired on 1 January.
Government departments
- HM Treasury: Prudential Regulation Committee – David Belsham reappointed as an external member; Financial Conduct Authority – Charles Randall appointed as chair from 1 April.
- Department for Transport: Office of Rail and Road – Stephen Glaister reappointed as chair.
- Department for Environment, Food and Rural Affairs: Veterinary Products Committee – Enrique Vega, Mark White, Ye-Mei Ruby Chang, Andrea Tarr, Helen Ballantyne and Rachel Bennett appointed as members, Malcolm Bennett appointed as chair.
Parties
- Labour Party: Alex Cunningham resigned as shadow minister for pensions.
Devolved Authorities
- National Assembly for Wales: Nathan Gill (Independent, elected as UKIP) resigned as AM for North Wales on 27 December and was replaced by Mandy Jones (UKIP).
Local authorities: by-election result 4 January
- Hertsmere Borough Council - Rebecca Butler elected for Borehamwood Cowley Hill – Labour gain from Conservative.
Consultancies
- JBP – James Hinchliffe promoted to strategic engagement director and James Hargrave to policy and communications director.
- FTI Consulting – Alex Deane and Giles Barrie promoted to become senior managing directors.
Interest groups
- Christian Aid – Amanda Khozi Mukwashi appointed as chief executive from April.
Corporates
- BBA Aviation – Mark Johnstone promoted to become chief executive.